CN113527958B - Hydrogen-corrosion-resistant polymer mixed coating and preparation method thereof - Google Patents
Hydrogen-corrosion-resistant polymer mixed coating and preparation method thereof Download PDFInfo
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- CN113527958B CN113527958B CN202110993143.7A CN202110993143A CN113527958B CN 113527958 B CN113527958 B CN 113527958B CN 202110993143 A CN202110993143 A CN 202110993143A CN 113527958 B CN113527958 B CN 113527958B
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- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 229920000642 polymer Polymers 0.000 title claims abstract description 22
- 238000005260 corrosion Methods 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 14
- 239000001257 hydrogen Substances 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 12
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 7
- 238000007590 electrostatic spraying Methods 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001723 curing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The hydrogen corrosion resistant polymer mixed coating and the preparation method thereof comprise the following raw materials in parts by weight: polytetrafluoroethylene: 60-80 parts; polyether ether ketone: 4-8 parts; anhydrous acetone: 30-40 parts; acrylic resin: 4-8 parts; emulsifier: 2-4 parts; metal carbonyl: 1.5-4.5. This application adopts the mode of carbonyl metal mixed polymer organic matter for when coating, basically accomplish the decomposition before contacting the metal, then coat to the rotor surface, the combination effect of mixed coating and rotor is better, when guaranteeing sealing performance, wear resistance also improves greatly.
Description
Technical Field
The application relates to a hydrogen corrosion resistant polymer mixed coating and a preparation method thereof.
Background
For positive displacement blowers, it relies on the pressure change caused by the volume change between the rotors during rotation of the rotors to provide a pressurized transfer of the delivered gas, in which there is a high degree of sealing between the rotors that is produced by pure sealing compression. In the process of hydrogen transmission, hydrogen corrosion may be generated between hydrogen and metal, and the hydrogen corrosion can greatly reduce the strength of a rotor to cause damage of the rotor, so that some improvement schemes are provided at present, and a high-molecular mixed coating is arranged on the rotor. However, the durability and stability of the coating is problematic due to the high speed operation of the rotors and the characteristic of mutual compression.
Disclosure of Invention
In order to solve the above problems, the present application provides a hydrogen corrosion resistant polymer hybrid coating, which is prepared from the following raw materials in parts by mass: polytetrafluoroethylene: 60-80 parts; polyether ether ketone: 4-8 parts; anhydrous acetone: 30-40 parts; acrylic resin: 4-8 parts; emulsifier: 2-4 parts; metal carbonyl: 1.5-4.5. This application adopts the mode of carbonyl metal mixed polymer organic matter for when coating, basically accomplish the decomposition before contacting the metal, then coat to the rotor surface, the combination effect of mixed coating and rotor is better, when guaranteeing sealing performance, wear resistance also improves greatly.
Preferably, the thickness of the polymer mixed coating is 30-50 μm. The coating thickness of the coating is generally controlled according to the spraying amount and the spraying times, and of course, the coating can be sprayed to a higher thickness for multiple times, then sprayed to a certain thickness, such as more than 100 micrometers, and then polished to the required thickness.
Preferably, the emulsifier is sodium dodecyl sulfate.
Preferably, the metal carbonyl comprises nickel carbonyl and cobalt carbonyl, and the mass ratio of the nickel carbonyl to the cobalt carbonyl is 1:2-4.
On the other hand, the preparation method of the hydrogen corrosion resistant polymer mixed coating is also disclosed, and comprises the following steps:
s1, placing polyether-ether-ketone, anhydrous acetone, acrylic resin, an emulsifier and carbonyl metal in a high-speed mixer under the condition of isolating air for primary mixing to finish primary mixing;
s2, placing polytetrafluoroethylene in the mixture obtained in the S1, performing ultrasonic vibration, and then placing the mixture in a high-speed mixer for secondary mixing to obtain a spraying raw material;
and S3, spraying the spraying raw materials to obtain the polymer mixed coating. This application adopts earlier to carry out intensive mixing with other substrates, then mixes polytetrafluoroethylene wherein mode, can provide the many substrates of a relative volume basically earlier to be favorable to dispersing polytetrafluoroethylene, can make main functional component polytetrafluoroethylene dispersibility better.
Preferably, the operation time of the primary mixing is 10-15h.
Preferably, the operation time of the ultrasonic vibration is 1-2h.
Preferably, the operation time of the secondary mixing is 6-8h.
Preferably, the spraying is electrostatic spraying.
Preferably, the macromolecule mixed coating is obtained by sand blasting, cleaning, oil removing, electrostatic spraying and heating curing on the surface of the rotor.
This application can bring following beneficial effect:
1. according to the method, the carbonyl metal is mixed with the macromolecular organic matter, so that decomposition is basically completed before the carbonyl metal contacts with the metal during coating, and then the carbonyl metal is coated on the surface of the rotor, the combined effect of the mixed coating and the rotor is better, and the wear resistance is greatly improved while the sealing performance is ensured;
2. the coating thickness of the coating is generally controlled according to the spraying amount and the spraying times, and of course, the coating can also be sprayed for a plurality of times to a higher thickness, then sprayed to a certain thickness, such as more than 100 micrometers, and then polished to the thickness meeting the requirements;
3. this application adopts earlier to carry out intensive mixing with other substrates, then mixes polytetrafluoroethylene wherein mode, can provide the many substrates of a relative volume basically earlier to be favorable to dispersing polytetrafluoroethylene, can make main functional component polytetrafluoroethylene dispersibility better.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present application will be explained in detail through the following embodiments.
The present application illustrates a specific embodiment of the application by way of example of synthesis and characterization, with the following specific steps:
a preparation method of a hydrogen corrosion resistant polymer mixed coating comprises the following steps:
s1, placing polyether-ether-ketone, anhydrous acetone, acrylic resin, an emulsifier and carbonyl metal in a high-speed mixer under the condition of air isolation for primary mixing, wherein the operation time of the primary mixing is 10-15h, and finishing primary mixing; the emulsifier is sodium dodecyl sulfate; the composition of the material is shown in table 1, and the operating parameters are shown in table 2;
table 1:
s2, placing polytetrafluoroethylene in the mixture obtained in the S1, firstly performing ultrasonic vibration, wherein the operation time of the ultrasonic vibration is 1-2h, and then placing the mixture in a high-speed mixer for secondary mixing, wherein the operation time of the secondary mixing is 6-8h, so as to obtain a spraying raw material;
table 2:
s3, spraying the cleaned rotor surface with the spraying raw materials to obtain a polymer mixed coating; the spraying adopts electrostatic spraying. Firstly, carrying out sand blasting, cleaning and oil removing on the surface of the rotor, then carrying out electrostatic spraying, heating and curing to obtain the polymer mixed coating. The thickness of the polymer mixed coating is 30-50 μm.
S4, carrying out the following parameter characterization on the mixed coating: thickness, coefficient of friction, wear rate and impact resistance (GB/T1732-1993) as shown in Table 3.
Table 3:
| serial number | Coefficient of friction | Wear rate (10) -8 mm 3 /Nm) | Impact resistance |
| 1 | 0.05 | 0.12 | Without cracks |
| 2 | 0.11 | 0.38 | Without cracks |
| 3 | 0.17 | 0.27 | Without cracks |
| 4 | 0.37 | 1.15 | Without cracks |
| 5 | 0.42 | 1.74 | Without cracks |
| 6 | 0.18 | 0.35 | Fine cracks |
| 7 | 0.21 | 0.51 | Fine cracks |
| 8 | 0.22 | 0.39 | Fine cracks |
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (5)
1. A hydrogen corrosion resistant polymer mixed coating is characterized in that: the composite material is prepared from the following raw materials in parts by mass: polytetrafluoroethylene: 60-80 parts; polyether ether ketone: 4-8 parts; anhydrous acetone: 30-40 parts; acrylic resin: 4-8 parts; emulsifier: 2-4 parts; metal carbonyl: 1.5-4.5; the metal carbonyl comprises nickel carbonyl and cobalt carbonyl, and the mass ratio of the nickel carbonyl to the cobalt carbonyl is 1:2-4;
the polymer mixed coating is prepared according to the following steps:
s1, polyether-ether-ketone, anhydrous acetone, acrylic resin, an emulsifier and carbonyl metal are placed in a high-speed mixer to be mixed for the first time under the condition of isolating air, and preliminary mixing is finished;
s2, placing polytetrafluoroethylene in the mixture obtained in the S1, performing ultrasonic vibration, and then placing the mixture in a high-speed mixer for secondary mixing to obtain a spraying raw material;
s3, spraying the spraying raw materials to obtain a high-molecular mixed coating;
the spraying adopts electrostatic spraying;
firstly, carrying out sand blasting, cleaning and oil removing on the surface of a rotor, then carrying out electrostatic spraying and heating and curing to obtain a polymer mixed coating;
the thickness of the polymer mixed coating is 30-50 μm.
2. The hydrogen etch resistant polymer hybrid coating of claim 1, wherein: the emulsifier is sodium dodecyl sulfate.
3. The hydrogen etch resistant polymer hybrid coating of claim 1, wherein: the operation time of the primary mixing is 10-15h.
4. The hydrogen etch resistant polymer hybrid coating of claim 1, wherein: the operation time of the ultrasonic vibration is 1-2h.
5. The hydrogen etch resistant polymer hybrid coating of claim 1, wherein: the operation time of the secondary mixing is 6-8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110993143.7A CN113527958B (en) | 2021-08-25 | 2021-08-25 | Hydrogen-corrosion-resistant polymer mixed coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110993143.7A CN113527958B (en) | 2021-08-25 | 2021-08-25 | Hydrogen-corrosion-resistant polymer mixed coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113527958A CN113527958A (en) | 2021-10-22 |
| CN113527958B true CN113527958B (en) | 2023-03-17 |
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| CN202110993143.7A Active CN113527958B (en) | 2021-08-25 | 2021-08-25 | Hydrogen-corrosion-resistant polymer mixed coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030987B (en) * | 2009-09-30 | 2013-12-04 | E.I.内穆尔杜邦公司 | Corrosion-resistant film and product containing same |
| CN110064580B (en) * | 2019-04-26 | 2021-11-30 | 淄博纳银新材料科技有限公司 | Protection method for metal surface |
| CN110776804A (en) * | 2019-10-15 | 2020-02-11 | 泰州市罡杨橡塑有限公司 | Self-lubricating high-molecular polymer nano composite coating and preparation process thereof |
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