CN105128117A - Sun-protection high-density fiberboard based on ultraviolet shielding agent and preparation method of sun-protection high-density fiberboard - Google Patents
Sun-protection high-density fiberboard based on ultraviolet shielding agent and preparation method of sun-protection high-density fiberboard Download PDFInfo
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- CN105128117A CN105128117A CN201510414359.8A CN201510414359A CN105128117A CN 105128117 A CN105128117 A CN 105128117A CN 201510414359 A CN201510414359 A CN 201510414359A CN 105128117 A CN105128117 A CN 105128117A
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- 239000011094 fiberboard Substances 0.000 title claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 16
- 230000037072 sun protection Effects 0.000 title abstract 7
- 238000002360 preparation method Methods 0.000 title description 4
- 239000000835 fiber Substances 0.000 claims abstract description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 239000010902 straw Substances 0.000 claims abstract description 13
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 10
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010426 asphalt Substances 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 13
- 238000007731 hot pressing Methods 0.000 claims description 10
- 239000011268 mixed slurry Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 7
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 4
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 2
- 230000003712 anti-aging effect Effects 0.000 abstract 2
- 239000011787 zinc oxide Substances 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000019256 formaldehyde Nutrition 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a sun-protection high-density fiberboard based on an ultraviolet shielding agent. The sun-protection high-density fiberboard is characterized by being prepared from, by weight, 42-45 parts of crop straw, an appropriate amount of sodium hydroxide with the concentration of 2%, 2-2.5 parts of a silane coupling agent kh450, 66-70 parts of ethyl alcohol with the concentration of 95%, 30-32 parts of timber leftover materials, 4-6 parts of nanometer zinc oxide, 2-4 parts of cordierite, 0.8-1 part of polysiloxane-15, 7-8 parts of waterborne polyurethane adhesives, 1.5-2 parts of emulsified paraffin, an appropriate amount of water, 1-1.5 parts of an anti-ageing agent 4010Na and 1-1.5 parts of emulsified asphalt. The sun-protection high-density fiberboard is characterized in that mixed fiber is modified by compounding the nanometer zinc oxide, the cordierite, the polysiloxane-15, the ultraviolet shielding agent and the silane coupling agent, the prepared product is good in sun-protection and anti-ageing performance, and the service life is prolonged; and meanwhile, the product stability is high, and the sun-protection high-density fiberboard can be used outdoors and can be used for the industries of automotive trim, packages, furniture and the like.
Description
Technical field
The present invention relates to wood materials deep process technology field, particularly a kind of sun-proof high density fiberboard based on ultraviolet shielding agent and preparation method thereof.
Background technology
In recent years, the development of China middle and higher density fiberboard industry is very fast, hardboard originally progressively replace by medium and high density fibre panel.MDF enterprise is very large to the dependence of wood raw material, and wood raw material cost accounts for about 45% of production cost, the wood raw material production having badly influenced fiberboard in short supply.With regard to the requirement that medium and high density fibre panel is produced, be more than 10 years, the regeneration period of bamboo is also at 3-5, and the regeneration period of agricultural crop straw is 1 year or less than 1 year, from the utilization ratio of resource, the stalk of crops was the most favourable.China is large agricultural country, have abundant agricultural straw resource, but at present the utilization rate of China's stalk resource is only 33%, all the other most of stalks are fallen as castoff burning or only as fuel, not only cause the waste of natural resources, and weighting ring environment pollution.Adopt the cheap agronomic crop fibre strong with recyclability to replace wood raw material, become a direction of middle and higher density fiberboard development gradually.But the herbaceous plant fiber taking crops as representative is then short and thin, limits the mechanical strength of turf fibre plate to a certain extent.The content of herbaceous plant stem stalk organic solvent extract is obviously lower than wood raw material, but main component is wax, accompany by a small amount of higher fatty acids, higher alcohol etc., add that grass cane, epidermal leaf cells silicidize degree are very high, wax coat and the dioxide-containing silica on stalk surface are high, be unfavorable for the infiltration of adhesive, result in the gummed of traditional Lauxite to crushed straw aggregate bad.When this just requires to utilize the herbaceous plant fibers such as agricultural crop straw to manufacture high density fiberboard, the traditional adhesive existed in existing technique must be solved and glue together bad, poor water resistance, intensity difference defect.
It is formaldehyde series glue three kinds of Typical Representatives that phenolic resins, Lauxite and melamine resin adehsive stick agent, uses the most distinct issues of three-aldehyde glue to be free formaldehyde release.Three-aldehyde glue series wood-based plate constantly can discharge free formaldehyde, serious harm health in 3-15 before production and products thereof uses.Both at home and abroad the demand of the wood-based panel products such as no-formaldehyde density board is grown to even greater heights.Find in production practices, Aqueous Polyurethane Adhesives etc. do not arise at the historic moment containing the adhesive of formaldehyde, and occupation rate of market is more and more higher, but because price is higher, utilize it will inevitably bring the increase of the production cost of density fiber board as adhesive, but a part of composition can be saved under the prerequisite adopting the raw material such as agricultural crop straw, wood leftover material, so both can not cause the increase of cost, also the product of safety and environmental protection in producing, is worth commercially promoting.
Along with the development of high density fiberboard, be only the demand that intensity, resistance to water have not reached market development far away, this just requires the sheet material constantly developing various performance, to meet the demand in market.
Summary of the invention
The object of this invention is to provide a kind of sun-proof high density fiberboard based on ultraviolet shielding agent and preparation method thereof.The ultraviolet shielding agent such as interpolation Dimethicodiethylbenzalmalonate, nano zine oxide, cordierite and silane coupler are carried out composite by the present invention, process, can make and have the good high density fiberboard of sun-proof result fiber.
In order to realize object of the present invention, the present invention is by following scheme implementation:
Based on a sun-proof high density fiberboard for ultraviolet shielding agent, be made up of the raw material of following weight portion: ethanol 66-70, wood leftover material 30-32 that the Sodium hydroxide q. s that agricultural crop straw 42-45, concentration are 2%, silane coupler kh4502-2.5, concentration are 95%, nano zine oxide 4-6, cordierite 2-4, Dimethicodiethylbenzalmalonate 0.8-1, Aqueous Polyurethane Adhesives 7-8, emulsified wax 1.5-2, water are appropriate, antioxidant 4010NA 1-1.5, emulsified asphalt 1-1.5;
A kind of sun-proof high density fiberboard based on ultraviolet shielding agent of the present invention, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2-3 hour with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200-1400 rev/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) cordierite is ground into 200 order powder to mix with nano zine oxide, then add Dimethicodiethylbenzalmalonate, silane coupler kh450 puts into after kneader mediates 15-20 minute, being distributed to concentration is while stirring in the ethanol of 95%, stir under normal temperature and form suspension, then composite fibre is continued to be immersed in suspension, pull out after 20-30 minute, put in an oven after drying, dry under the condition of 85-95 DEG C again, take out the composite fibre obtaining surface modification after it cools naturally;
(4) first by Aqueous Polyurethane Adhesives and antioxidant 4010NA mixing and stirring, then add emulsified wax and all the other residual components, make mixed slurry after stirring 20-30 minute with the speed of 300 revs/min stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab feeding hot press is carried out hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm2, and the dwell time is 3-4 minute) and namely obtain product of the present invention.
The invention has the beneficial effects as follows: the present invention is substitution of resources product, a large amount of agricultural crop straws and wood leftover material is adopted to substitute timber, a large amount of timber resources can be saved like this, fiber is extracted by certain treatment process, traditional handicraft is improved, fiber is carried out modified again by Aqueous Polyurethane Adhesives, the mixing such as emulsified wax carries out applying glue to the composite fibre after process at twice, blend glue stuff is evenly distributed between fiber and fiber and fiber surface, the product waterproof effect made after such process is remarkable, prevent fiberboard from ftractureing, warpage, increase the service life.
The ultraviolet shielding agent such as nano zine oxide, cordierite, Dimethicodiethylbenzalmalonate and silane coupler being carried out of the present invention's innovation compositely carries out modification to composite fibre, the bonding strength of fiber and anti-solarization can be improved, the sun-proof ageing resistace of the product made is good, extend service life, product stability is good simultaneously, can be used as outdoor, the industries such as automotive trim, technique packaging, electrical equipment, furniture can also be used as.
Specific embodiments
Below by instantiation, the present invention is described in detail.
Based on a sun-proof high density fiberboard for ultraviolet shielding agent, be made up of the raw material of following weight portion (kilogram): the ethanol 66 that the Sodium hydroxide q. s that agricultural crop straw 42, concentration are 2%, silane coupler kh4502, concentration are 95%, wood leftover material 30, nano zine oxide 4, cordierite 2, Dimethicodiethylbenzalmalonate 0.8, Aqueous Polyurethane Adhesives 7, emulsified wax 1.5, water are appropriate, antioxidant 4010NA 1, emulsified asphalt 1;
A kind of sun-proof high density fiberboard based on ultraviolet shielding agent of the present invention, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2 hours with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200 revs/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) cordierite is ground into 200 order powder to mix with nano zine oxide, then add Dimethicodiethylbenzalmalonate, silane coupler kh450 puts into kneader and mediate after 15 minutes, being distributed to concentration is while stirring in the ethanol of 95%, stir under normal temperature and form suspension, then composite fibre is continued to be immersed in suspension, pull out after 20 minutes, put in an oven after drying, dry under the condition of 85-95 DEG C again, take out the composite fibre obtaining surface modification after it cools naturally;
(4) first by Aqueous Polyurethane Adhesives and antioxidant 4010NA mixing and stirring, then add emulsified wax and all the other residual components, make mixed slurry after stirring 20 minutes with the speed of 300 revs/min stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab feeding hot press is carried out hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm2, and the dwell time is 4 minutes) and namely obtain product of the present invention.
Thickness of the present invention is 12mm, the product after hot pressing cools at normal temperatures, saw and cut, deposit 2 days after, after testing, the performance test results of product of the present invention meets: density is 0.905g/cm
3, MOR is 36.77MPa, and internal bond strength is 0.866MPa, and elastic modelling quantity is 3199MPa, and thickness swelling rate is 11.12%, and burst size of methanal reaches E0 level environmental protection standard.
Claims (2)
1. the sun-proof high density fiberboard based on ultraviolet shielding agent, it is characterized in that, be made up of the raw material of following weight portion: ethanol 66-70, wood leftover material 30-32 that the Sodium hydroxide q. s that agricultural crop straw 42-45, concentration are 2%, silane coupler kh4502-2.5, concentration are 95%, nano zine oxide 4-6, cordierite 2-4, Dimethicodiethylbenzalmalonate 0.8-1, Aqueous Polyurethane Adhesives 7-8, emulsified wax 1.5-2, water are appropriate, antioxidant 4010NA 1-1.5, emulsified asphalt 1-1.5.
2. a kind of sun-proof high density fiberboard based on ultraviolet shielding agent according to claim 1, is characterized in that, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2-3 hour with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200-1400 rev/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) cordierite is ground into 200 order powder to mix with nano zine oxide, then add Dimethicodiethylbenzalmalonate, silane coupler kh450 puts into after kneader mediates 15-20 minute, being distributed to concentration is while stirring in the ethanol of 95%, stir under normal temperature and form suspension, then composite fibre is continued to be immersed in suspension, pull out after 20-30 minute, put in an oven after drying, dry under the condition of 85-95 DEG C again, take out the composite fibre obtaining surface modification after it cools naturally;
(4) first by Aqueous Polyurethane Adhesives and antioxidant 4010NA mixing and stirring, then add emulsified wax and all the other residual components, make mixed slurry after stirring 20-30 minute with the speed of 300 revs/min stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab feeding hot press is carried out hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm2, and the dwell time is 3-4 minute) and namely obtain product of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510414359.8A CN105128117A (en) | 2015-07-15 | 2015-07-15 | Sun-protection high-density fiberboard based on ultraviolet shielding agent and preparation method of sun-protection high-density fiberboard |
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| CN201510414359.8A CN105128117A (en) | 2015-07-15 | 2015-07-15 | Sun-protection high-density fiberboard based on ultraviolet shielding agent and preparation method of sun-protection high-density fiberboard |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393358A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood compound modifier capable of enhancing light aging resistance |
| CN107443534A (en) * | 2017-08-04 | 2017-12-08 | 广州市康诺装饰材料有限公司 | A kind of high-density plate and preparation method thereof |
| CN107498683A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green rice husk, straw stalk sheet production method |
| CN107498685A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw stalk sheet production method |
| CN107498684A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw, Wheat Straw sheet production method |
| CN107498680A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green rice husk sheet production method |
| CN107498681A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green stalk light wall board production method |
| CN107498686A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green Wheat Straw sheet production method |
| CN108582394A (en) * | 2018-05-17 | 2018-09-28 | 李建州 | A kind of agricultural crop straw environmental protection flame retardant glue free particle board and preparation method thereof |
| CN115674372A (en) * | 2022-10-18 | 2023-02-03 | 浙江升华云峰新材股份有限公司 | Non-discoloring high-weather-resistance recombined decorative veneer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106393358A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood compound modifier capable of enhancing light aging resistance |
| CN107498683A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green rice husk, straw stalk sheet production method |
| CN107498685A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw stalk sheet production method |
| CN107498684A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw, Wheat Straw sheet production method |
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| CN107498681A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green stalk light wall board production method |
| CN107498686A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green Wheat Straw sheet production method |
| CN107443534A (en) * | 2017-08-04 | 2017-12-08 | 广州市康诺装饰材料有限公司 | A kind of high-density plate and preparation method thereof |
| CN108582394A (en) * | 2018-05-17 | 2018-09-28 | 李建州 | A kind of agricultural crop straw environmental protection flame retardant glue free particle board and preparation method thereof |
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