CN115262256B - Micromolecular fiber penetration softener and preparation method thereof - Google Patents
Micromolecular fiber penetration softener and preparation method thereof Download PDFInfo
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- CN115262256B CN115262256B CN202210985759.4A CN202210985759A CN115262256B CN 115262256 B CN115262256 B CN 115262256B CN 202210985759 A CN202210985759 A CN 202210985759A CN 115262256 B CN115262256 B CN 115262256B
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- 239000000835 fiber Substances 0.000 title claims abstract description 41
- 230000035515 penetration Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 72
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 54
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 40
- 239000008103 glucose Substances 0.000 claims abstract description 40
- 239000008367 deionised water Substances 0.000 claims abstract description 39
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 39
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 36
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 5
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 239000003607 modifier Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 70
- 238000002156 mixing Methods 0.000 claims description 38
- 239000011259 mixed solution Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 238000010992 reflux Methods 0.000 claims description 22
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 19
- FWVCSXWHVOOTFJ-UHFFFAOYSA-N 1-(2-chloroethylsulfanyl)-2-[2-(2-chloroethylsulfanyl)ethoxy]ethane Chemical compound ClCCSCCOCCSCCCl FWVCSXWHVOOTFJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 22
- 239000000126 substance Substances 0.000 abstract description 13
- 239000003814 drug Substances 0.000 abstract description 11
- 238000004537 pulping Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000004094 surface-active agent Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 abstract description 5
- -1 alcohol acetal Chemical class 0.000 abstract description 4
- 150000001241 acetals Chemical class 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000003204 osmotic effect Effects 0.000 description 26
- 239000004902 Softening Agent Substances 0.000 description 23
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 11
- 239000002357 osmotic agent Substances 0.000 description 11
- 150000003384 small molecules Chemical class 0.000 description 11
- 238000013329 compounding Methods 0.000 description 10
- 239000002023 wood Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000706 filtrate Substances 0.000 description 6
- 244000166124 Eucalyptus globulus Species 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010297 mechanical methods and process Methods 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 230000004584 weight gain Effects 0.000 description 3
- 235000019786 weight gain Nutrition 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000001976 hemiacetal group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a micromolecular fiber penetration softener and a preparation method thereof, belonging to the technical field of chemical mechanical pulping. The micromolecular fiber penetration softener comprises the following components in percentage by weight: sugar: 20-30%, alcohol: 5-15%, acid: 0.1-0.5%, alkali: 0.5-1%, modifier: 5-10% of an auxiliary agent: 5-10%, and the balance of deionized water; glucose containing high-activity hemiacetal hydroxyl in the molecule is used as a raw material, the glucose reacts with monobasic short-chain alcohol acetal under the catalysis of sulfuric acid to prepare a micromolecular surfactant, sodium carbonate is used as an alkali source to adjust the micromolecular surfactant into a weak alkaline environment, and then the micromolecular surfactant is compounded with N-methylmorpholine oxide and a rapid penetrant T to achieve the effect of synergistically reducing the surface tension of the impregnating liquid medicine, and the micromolecular acetal product can bring the liquid medicine into the fiber to soften the fiber, so that the usage amount of the chemical liquid medicine can be reduced, and the method has the significance of energy conservation and consumption reduction.
Description
Technical Field
The invention belongs to the technical field of chemical mechanical pulping, and particularly relates to a micromolecular fiber penetration softener and a preparation method thereof.
Background
The pulp manufacturing process is to utilize chemical method or mechanical method and the combination method to dissociate the fibers in the fiber raw materials, then clean or refine the fiber raw materials into colored pulp or bleached pulp, and the pulp manufacturing method can be divided into mechanical method, chemical method and chemical mechanical method; the mechanical pulping energy consumption is high, particularly the energy consumption in the pulping process is huge, and the energy consumption is about 30% of the whole pulping energy consumption; the chemical pulping method cannot utilize branch raw materials, is not suitable for or less used for broad-leaved wood, straw, bamboo and other raw materials, and greatly limits the sources of the raw materials; therefore, the prior art has mostly used chemical mechanical methods to prepare high yield slurries.
Chemimechanical pulp is a name for an intermediate pulp in paper manufacturing, which is a complex process consisting of multiple processes. The raw materials for manufacturing paper are various fiber raw materials, the fiber raw materials are firstly cut up and steamed to prepare paper pulp, and different pulping processes exist due to the fact that the composition and chemical components of the fiber raw materials are different; at present, a surfactant is mainly used as a penetrating agent, so that the surface tension of a liquid phase is improved, the fluidity is increased, the penetration speed is increased, the liquid medicine rapidly enters the raw material, the side near wood chip fibers are softened, and the yield and the efficiency of pulp fibers are improved. The surfactants adopted in the prior art are various, such as sodium alkyl sulfonate, polyoxyethylene alkyl ether and the like, and the single penetrant has large dosage and large environmental pollution load and needs to be further improved.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention aims to provide a micromolecular fiber penetration softener and a preparation method thereof.
The aim of the invention can be achieved by the following technical scheme:
the micromolecular fiber penetration softener comprises the following components in percentage by weight: sugar: 20-30%, alcohol: 5-15%, acid: 0.1-0.5%, alkali: 0.5-1%, modifier: 5-10% of an auxiliary agent: 5-10%, and the balance of deionized water.
Preferably, the sugar is selected from glucose, which contains a highly active hemiacetal hydroxyl group in the molecule, which is easy to react and modify, and which has smaller molecules and is easy to penetrate into pulp fibers.
Preferably, the alcohol is selected from one or two of ethanol and n-butanol, and the monohydric short-chain alcohol is easy to react with glucose, and has wide sources and low cost.
Preferably, the acid is selected from sulfuric acid, having a hydroxyl group that catalyzes the formation of a hemiacetal group from glucose and further reacting the hemiacetal group with an alcohol.
Preferably, the base is selected from sodium carbonate, which has high solubility, low cost and easy post-treatment.
Preferably, the modifier is selected from N-methylmorpholine oxide, which is nontoxic and easy to dissolve in water, has strong solubility to fiber, and can soften fiber by adding a certain amount of N-methylmorpholine oxide, so that the liquid medicine can enter the fiber rapidly.
Preferably, the auxiliary agent is selected from a rapid penetrating agent T which is an anionic surfactant and can cooperate with N-methylmorpholine oxide to achieve rapid penetration and softening.
According to the above technical scheme statement, the preparation method of the osmotic softening agent is determined as follows:
step S1: adding glucose and ethanol/n-butanol into a reaction kettle for mixing, adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid under stirring, mixing, controlling the stirring speed to be 180-360rpm, heating to 82-130 ℃, carrying out reflux reaction for 2-3h, wherein the ethanol/n-butanol is monobasic linear alcohol, and the hydroxyl at the end part is dehydrated with hemiacetal hydroxyl on glucose molecules under the catalysis of sulfuric acid to form acetal derivative to prepare micromolecule active mixed solution;
step S2: adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring and dissolving, adjusting the mixed solution to be in a weak alkaline environment, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing, and preparing the osmotic softening agent.
The invention has the beneficial effects that:
1. the invention takes glucose containing high activity hemiacetal hydroxyl in the molecule as raw material, reacts with monobasic short chain alcohol acetal under the catalysis of sulfuric acid to prepare micromolecular surfactant, sodium carbonate is used as alkali source to adjust to weak alkaline environment, then the micromolecular surfactant is compounded with N-methylmorpholine oxide and quick penetrant T to achieve the effect of synergistically reducing the surface tension of impregnated liquor, the liquor can be brought into the fiber to soften the fiber by the micromolecular acetal product, and the invention is adopted as the penetration softener in the same prepreg test, the weight gain rate is 36.54-38.85%, the alkali content in the filtrate is 0.91-1.01g/L, which indicates that the penetration softener can accelerate the penetration of the liquor into the wood chips, thereby increasing the weight of the presoaked wood chips, increasing the penetration of caustic soda into the wood chips along with the penetration softener, thereby softening the wood chips, leading the alkali content of the filtrate to be reduced, and fully indicating that the liquor can quickly and uniformly penetrate into the fiber raw material, soften the fiber raw material, and better facilitating the subsequent filament separation into pulp.
2. The osmotic softening agent prepared by the invention is applied to the chemical pretreatment impregnation stage of the chemical mechanical pulp, can accelerate the liquid medicine to enter the fiber, promote the fiber to soften, can reduce the use amount of the chemical liquid medicine, and has the significance of energy conservation and consumption reduction.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The preparation method of the micromolecular fiber penetration softener comprises the following specific implementation processes:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 20kg;
ethanol: 5kg;
sulfuric acid: 0.1kg;
sodium carbonate: 0.5kg;
n-methylmorpholine oxide: 5kg;
fast penetrant T:5kg;
deionized water: 64.4kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to be 180rpm, heating to 82 ℃, and carrying out reflux reaction for 3h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 2
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 20kg;
n-butanol: 8.2kg;
sulfuric acid: 0.2kg;
sodium carbonate: 0.7kg;
n-methylmorpholine oxide: 5kg;
fast penetrant T:5kg;
deionized water: 60.9kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to be 180rpm, heating to 130 ℃, and carrying out reflux reaction for 3h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 3
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 23kg;
ethanol: 8kg;
sulfuric acid: 0.25kg;
sodium carbonate: 0.3kg;
n-methylmorpholine oxide: 6kg;
fast penetrant T:9kg;
deionized water: 53.45kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to 240rpm, heating to 85 ℃, and carrying out reflux reaction for 3h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 4 this example prepared a small molecule fiber osmotic softener, the procedure was the same as in example 1, and the specific procedures were as follows:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 23kg;
n-butanol: 13.2;
sulfuric acid: 0.3kg;
sodium carbonate: 0.35kg;
n-methylmorpholine oxide: 8kg;
fast penetrant T:7kg;
deionized water: 48.15kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to be 360rpm, heating to 130 ℃, and carrying out reflux reaction for 2h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 5
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 26kg;
ethanol: 10kg;
sulfuric acid: 0.35kg;
sodium carbonate: 0.4kg;
n-methylmorpholine oxide: 5kg;
fast penetrant T:10kg;
deionized water: 48.25kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to 240rpm, heating to 85 ℃, and carrying out reflux reaction for 2.2h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 6
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 26kg;
n-butanol: 13kg;
sulfuric acid: 0.38kg;
sodium carbonate: 0.4kg;
n-methylmorpholine oxide: 7kg;
fast penetrant T:7kg;
deionized water: 46.22kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to 240rpm, heating to 130 ℃, and carrying out reflux reaction for 2.5h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 7
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 28kg;
ethanol: 12kg;
sulfuric acid: 0.4kg;
sodium carbonate: 0.5kg;
n-methylmorpholine oxide: 8kg;
fast penetrant T:6kg;
deionized water: 45.10kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to 300rpm, heating to 87 ℃, and carrying out reflux reaction for 2.5h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 8
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 28kg;
n-butanol: 15kg;
sulfuric acid: 0.4kg;
sodium carbonate: 0.5kg;
n-methylmorpholine oxide: 8kg;
fast penetrant T:6kg;
deionized water: 42.10kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to be 360rpm, heating to 130 ℃, and carrying out reflux reaction for 3h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 9
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 30kg;
ethanol and n-butanol are mixed according to the weight ratio of 1:1: 11kg;
sulfuric acid: 0.5kg;
sodium carbonate: 1kg;
n-methylmorpholine oxide: 10kg;
fast penetrant T:10kg;
deionized water: 37.5.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser (with a circulating water jacket), adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to 240rpm, heating to 110 ℃, and carrying out reflux reaction for 2.5h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Example 10
The preparation of the micromolecular fiber penetration softener in the embodiment has the following specific implementation process as in the embodiment 1:
1) And (3) batching: according to the ration of 100kg, the following raw materials are taken
Glucose: 30kg;
mixing ethanol and n-butanol according to a mass ratio of 1:4: 15kg;
sulfuric acid: 0.5kg;
sodium carbonate: 1kg;
n-methylmorpholine oxide: 10kg;
fast penetrant T:10kg;
deionized water: 33.5kg.
2) Preparation of small molecule actives
Taking a reaction kettle provided with a stirrer and a reflux condenser, adding glucose and ethanol, stirring and mixing, slowly adding deionized water, stirring until the glucose is completely dissolved, adding sulfuric acid and mixing for 5min while keeping a stirring state, setting the stirring speed to be 360rpm, heating to 125 ℃, and carrying out reflux reaction for 2h to prepare a micromolecule active mixed solution;
3) Compounding
Adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring until the sodium carbonate is completely dissolved, then adding the N-methylmorpholine oxide and the rapid osmotic agent T, stirring and mixing for 30min, and preparing the osmotic softening agent.
Taking the penetration softeners prepared in example 1-example 10, and taking eucalyptus pieces as objects for a pre-soaking test, two groups of control tests are arranged, wherein the two groups of control tests are respectively as follows:
comparative example 1
Deionized water, which is used as a blank control, is used for verifying the permeation effect of the invention.
Comparative example 2
The effect of the present invention was confirmed with the present osmotic softener, MLp-c, by comparing the osmotic softener with that of the present invention.
The specific test method is as follows:
the first step: the eucalyptus pieces of the test object are selected from a chemimechanical pulp workshop, the eucalyptus pieces which are uniform and consistent are selected, washed with clear water and then balanced for 24 hours, and the water content is detected for standby;
and a second step of: weighing 12 parts of absolute dry wood chips according to 100g equivalent, placing the absolute dry wood chips in a 1L beaker, adding 800mL of water, respectively adding the osmotic softening agent prepared in the examples 1-10, deionized water provided in the comparative example 1 and the existing osmotic softening agent MLp-c provided in the comparative example 2, wherein the addition amount is 1kg/t, adding caustic soda according to 30kg/t, mixing, and placing the mixture in a water bath at 90 ℃ for 30min;
and a third step of: filtering the wood chips after reaction presoaking by using a 40-mesh screen, filtering water on the surface, and measuring the weight of the wood chips;
fourth step: and taking filtrate to detect alkali content.
The specific test data are shown in table 1:
TABLE 1
As can be seen from the data in Table 1, the osmotic softening agent prepared by the invention is applied to the pulping process of eucalyptus chips, the weight gain rate is 36.54-38.85%, the alkali content in the filtrate is 0.91-1.01g/L, the weight gain rate of the chips is higher than that of comparative examples 1 and 2, the alkali content in the filtrate is lower than that of comparative examples 1 and 2, the osmotic softening agent can accelerate the penetration of liquid medicine into the chips, thus increasing the weight of the presoaked chips, and the amount of caustic soda penetrating into the chips along with the osmotic softening agent is large, so that the chips are softened, the alkali content of the filtrate is reduced, and the invention is fully proved to enable the liquid medicine to quickly and uniformly penetrate into the fiber raw materials, soften the fiber raw materials and be better beneficial to the subsequent filament splitting pulping.
In order to verify the effect of the osmotic softening agent prepared by the invention on pulping, an existing mature alkaline hydrogen peroxide chemical mechanical pulping process is adopted for testing, the osmotic softening agent provided in example 8 is used as an experimental group, the osmotic softening agent provided in comparative example 2 is used as a control group, and specific drug proportions and test data are shown in table 2:
TABLE 2
As can be seen from the data in Table 2, the osmotic softening agent prepared by the invention is used for dipping paper pulp, has obvious beneficial effects and economic benefits, and can obtain the effect similar to the existing osmotic softening agent under the condition of proper lower dosage of liquid medicine, and has specific energy-saving and consumption-reducing effects.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (1)
1. The micromolecular fiber penetration softener is characterized by comprising the following components in percentage by weight: sugar: 20-30%, alcohol: 5-15%, acid: 0.1-0.5%, alkali: 0.5-1%, modifier: 5-10% of an auxiliary agent: 5-10%, and the balance of deionized water;
wherein the sugar is glucose, the alcohol is one or two of ethanol and N-butanol which are mixed in any proportion, the acid is sulfuric acid, the alkali is sodium carbonate, the modifier is N-methylmorpholine oxide, and the auxiliary agent is a rapid penetrating agent T;
the preparation method of the micromolecular fiber penetration softener comprises the following steps:
step S1: mixing sugar and alcohol, adding deionized water, stirring for dissolving, adding sulfuric acid for mixing while maintaining the stirring state, controlling the stirring speed to be 180-360rpm, heating to 82-130 ℃, and carrying out reflux reaction for 2-3h to obtain a micromolecular active mixed solution;
step S2: adding the rest deionized water and sodium carbonate into the micromolecule active mixed solution, stirring and dissolving, and then adding N-methylmorpholine oxide and a rapid penetrating agent T, stirring and mixing to prepare the penetrating softener.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790239A (en) * | 2015-04-20 | 2015-07-22 | 湖南佰霖生物技术有限公司 | Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof |
| CN106217552A (en) * | 2016-07-28 | 2016-12-14 | 阜南县东奥工艺品有限公司 | A kind of softening method weaving use timber |
| CN106827140A (en) * | 2016-12-29 | 2017-06-13 | 上海建工集团股份有限公司 | Timber softening agent and method |
| CN106833941A (en) * | 2017-01-09 | 2017-06-13 | 盛益腾电子科技无锡有限公司 | A kind of middle temperature alkalescence bating liquor and preparation method thereof |
| CN108978336A (en) * | 2018-08-08 | 2018-12-11 | 东莞市白天鹅纸业有限公司 | Softener for papermaking and preparation method thereof |
| CN109939612A (en) * | 2019-03-11 | 2019-06-28 | 上海发凯化工有限公司 | Guerbet alcohol alkyl glucoside surfactant and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7012058B2 (en) * | 2003-02-26 | 2006-03-14 | Huntsman Petrochemical Corporation | Chemical softening compositions for paper products |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790239A (en) * | 2015-04-20 | 2015-07-22 | 湖南佰霖生物技术有限公司 | Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof |
| CN106217552A (en) * | 2016-07-28 | 2016-12-14 | 阜南县东奥工艺品有限公司 | A kind of softening method weaving use timber |
| CN106827140A (en) * | 2016-12-29 | 2017-06-13 | 上海建工集团股份有限公司 | Timber softening agent and method |
| CN106833941A (en) * | 2017-01-09 | 2017-06-13 | 盛益腾电子科技无锡有限公司 | A kind of middle temperature alkalescence bating liquor and preparation method thereof |
| CN108978336A (en) * | 2018-08-08 | 2018-12-11 | 东莞市白天鹅纸业有限公司 | Softener for papermaking and preparation method thereof |
| CN109939612A (en) * | 2019-03-11 | 2019-06-28 | 上海发凯化工有限公司 | Guerbet alcohol alkyl glucoside surfactant and preparation method thereof |
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