CN115895365B - Single-component low-temperature environment-friendly paint for carbon fiber composite material coating and preparation method thereof - Google Patents
Single-component low-temperature environment-friendly paint for carbon fiber composite material coating and preparation method thereof Download PDFInfo
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- CN115895365B CN115895365B CN202211691804.1A CN202211691804A CN115895365B CN 115895365 B CN115895365 B CN 115895365B CN 202211691804 A CN202211691804 A CN 202211691804A CN 115895365 B CN115895365 B CN 115895365B
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- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 27
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003973 paint Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000003085 diluting agent Substances 0.000 claims abstract description 14
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 10
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 10
- 239000004611 light stabiliser Substances 0.000 claims abstract description 9
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 6
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 8
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229920003275 CYMEL® 325 Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 4
- RSOILICUEWXSLA-UHFFFAOYSA-N bis(1,2,2,6,6-pentamethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)N(C)C(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)N(C)C(C)(C)C1 RSOILICUEWXSLA-UHFFFAOYSA-N 0.000 claims description 4
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 description 4
- UOHMMEJUHBCKEE-UHFFFAOYSA-N prehnitene Chemical compound CC1=CC=C(C)C(C)=C1C UOHMMEJUHBCKEE-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- SITYOOWCYAYOKL-UHFFFAOYSA-N 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(3-dodecoxy-2-hydroxypropoxy)phenol Chemical compound OC1=CC(OCC(O)COCCCCCCCCCCCC)=CC=C1C1=NC(C=2C(=CC(C)=CC=2)C)=NC(C=2C(=CC(C)=CC=2)C)=N1 SITYOOWCYAYOKL-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000013035 low temperature curing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003270 Cymel® Polymers 0.000 description 1
- 206010033307 Overweight Diseases 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention relates to a coating for coating the surface of a carbon fiber composite material. The single-component low-temperature environment-friendly coating for coating the carbon fiber composite material comprises the following raw materials in parts by weight: 50 to 55 parts of polyester modified acrylic resin, 15 to 20 parts of cellulose acetate butyrate, 1 to 2 parts of adhesive, 0.5 to 1 part of ultraviolet absorber, 0.5 to 1 part of light stabilizer, 7 to 9 parts of low-temperature cross-linking agent, 0.3 to 0.5 part of flatting agent and 12 to 20 parts of diluent. The coating can replace the traditional high-curing-temperature bi-component coating in the coating process of the carbon fiber composite material, and has the advantages of saving energy consumption and reducing exhaust emission. The paint has excellent performance, excellent hardness, weather resistance, salt fog resistance, temperature resistance and moisture resistance. Has good adhesive force to the carbon fiber composite material, good flexibility and bending resistance.
Description
Technical Field
The invention relates to a coating for coating the surface of a carbon fiber composite material, in particular to a single-component low-temperature environment-friendly coating for coating the carbon fiber composite material.
Background
The comprehensive whole process carries out green planning, green design, green investment, green construction, green production, green circulation, green life and green consumption, so that the development is established on the basis of high-efficiency resource utilization, strict protection of ecological environment and effective control of greenhouse gas emission, the high-weight development and high-level protection are comprehensively promoted, and an economical system of sound green low-carbon cyclic development is established.
The carbon fiber composite material has excellent comprehensive performance and is widely applied to the fields of aerospace, sports and leisure products, civil construction, electronic products, bicycles and the like. The main application fields of the medical device include sports equipment, medical equipment, automobiles and aerospace. The sports equipment mainly comprises: badminton rackets, tennis rackets, fishing poles, bicycle tripods, rims, beach rackets, ice hockey sticks, golf shafts, helmets, hydrofoil products and the like.
Along with the wider and wider application of carbon fiber composite products, the carbon fiber composite is often required to be subjected to surface spraying treatment by using a coating so as to achieve the effects of decoration and protection. In the conventional coating process, a high-curing-temperature bi-component coating is used, and is sprayed, then is left to stand and is baked. The problems caused by the method are that 1, the waste gas generated by high-temperature baking causes serious pollution to the environment and affects the health of human bodies. 2. The high temperature results in the carbon fiber composite material performance being affected. 3. The operation is complex, and the flow can be simplified. 4. Poor paint performance and poor adsorptivity are major problems.
Disclosure of Invention
The invention aims to provide a single-component low-temperature environment-friendly coating for carbon fiber composite material coating, which can replace the traditional high-curing-temperature double-component coating in the carbon fiber composite material coating process and has the advantages of saving energy consumption and reducing exhaust emission. The paint has excellent performance, excellent hardness, weather resistance, salt fog resistance, temperature resistance and moisture resistance. Has good adhesive force to the carbon fiber composite material, good flexibility and bending resistance.
The technical scheme for achieving the aim of the invention is as follows:
the single-component low-temperature environment-friendly coating for coating the carbon fiber composite material comprises the following raw materials in parts by weight: 50 to 55 parts of polyester modified acrylic resin, 15 to 20 parts of cellulose acetate butyrate, 1 to 2 parts of adhesive, 0.5 to 1 part of ultraviolet absorber, 0.5 to 1 part of light stabilizer, 7 to 9 parts of low-temperature cross-linking agent, 0.3 to 0.5 part of flatting agent and 12 to 20 parts of diluent.
Further, the diluent is a composite solvent with the weight portion ratio of 40-50:10-20:5-15:15-25:10-15 of butyl acetate, propylene glycol methyl ether acetate, diacetone alcohol, ethyl acetate and n-butanol. According to the relative volatilization rate of the solvent, the compound solvent prepared by the invention has continuous volatilization gradient, so that the coated wet film has necessary and sufficient leveling time, and the dry film effect is attractive after baking and curing.
Further, the preparation raw materials are as follows: 50 to 55 parts of LF-8110 polyester modified acrylic resin, 15 to 20 parts of CAB-551-0.2 (30 percent), 1 to 2 parts of adhesive EA-2118, 0.5 to 1 part of ultraviolet absorbent Tinuvin, 0.5 to 1 part of light stabilizer Tinuvin292, 7 to 9 parts of low-temperature crosslinking agent cyanogen CYMEL, 0.3 to 0.5 part of flatting agent BYK-333 and 12 to 20 parts of diluent.
Among the components, the LF-8110 polyester modified acrylic resin has the solid content of 50 percent, and has the advantages of quick drying, high hardness, good flexibility, good water resistance and weather resistance and good low-temperature curing; the cellulose acetate CAB-551-0.2 (30%) can improve the drying speed of the coating, leveling and good construction; the low-temperature crosslinking agent cyanogen CYMEL325 and 8110 resin can crosslink at low temperature, so that the chemical resistance, hardness, impact resistance and storage stability of the coating are improved.
The combination of the ultraviolet absorber Tinuvin400 and the light stabilizer Tinuvin292 provides excellent ageing resistance. The adhesion agent EA-2118 promotes the adhesion of the coating to a variety of composite materials. The leveling agent is a modified siloxane auxiliary agent, so that the leveling property, the smoothness and the scratch resistance of the coating are improved.
The preparation method of the single-component low-temperature environment-friendly paint for coating the carbon fiber composite material comprises the following steps:
s1, mixing polyester modified acrylic resin, a cross-linking agent and cellulose acetate butyrate solution, and uniformly dispersing by a high-speed dispersing machine;
s2, sequentially adding a diluent, an adhesive, a light stabilizer and an ultraviolet absorber for uniform dispersion, and then adding a leveling agent for uniform dispersion.
The construction method of the single-component low-temperature environment-friendly paint for coating the carbon fiber composite material comprises the following steps: spraying the paint on the surface of the carbon fiber composite material substrate by using a spraying robot, standing for 5-10min at normal temperature with the paint film thickness of 25-30 mu m, entering a baking section, baking for 30-45min at the temperature of 75-85 ℃, and packaging after taking off.
The invention has the following beneficial effects:
1. the invention has outstanding environmental protection performance, the prepared coating has high solid content and low curing temperature, and the pollution of volatile organic compounds to the atmosphere and the harm to the body of constructors are reduced in the manufacturing and construction processes.
2. The invention has outstanding practical performance, and the low-temperature crosslinking agent CYMEL325 and the polyester modified acrylic resin LF-8100 can achieve excellent hardness, chemical resistance and flexibility after low-temperature baking.
3. The invention has simple production, the prepared coating is single-component, the construction is simple and efficient, and the operation is easy; the low-temperature curing characteristic has wide applicability and greatly simplifies the construction process.
Detailed Description
The present invention will now be described in detail with reference to the following specific examples and comparative examples, which are only preferred implementations of the present invention and are not limiting thereof.
Table 1 shows the formulation (in parts) of 3 examples of the single-component low-temperature environment-friendly coating for coating the carbon fiber composite material.
Table 1:
the formula of the diluent 1 used in 3 examples is shown in Table 2 (unit: parts by weight).
Table 2:
in addition, the following 3 other diluents were prepared as comparative examples 1 to 3 with the other components in examples 1 to 3, respectively:
the formula of the diluent d: xylene 35; trimethylbenzene 25; ethylene glycol monobutyl ether 10; butyl acetate 20; n-butanol 10.
The formula of the diluent e: xylene 25; tetramethylbenzene 35; 30 parts of methyl acetate; n-butanol 10.
The formula of the diluent f: xylene 15; trimethylbenzene 20; tetramethylbenzene 25; butyl acetate 15; isopropanol 10; ethylene glycol monobutyl ether 15.
The preparation methods of examples 1-3 and comparative examples 1-3 described above were as follows:
s1, dispersing LF-8110 polyester modified acrylic resin, a crosslinking agent CYMEL325 and CAB-551-0.2 (30%) solution for 20min at 600rpm by a high-speed dispersing machine;
s2, sequentially adding the diluent, the adhesive EA-2118, the light stabilizer Tinuvin292 and the ultraviolet absorbent Tinuvin400 at 600rpm, mixing for 15min, and then adding the flatting agent BYK-333 at 600rpm, mixing for 10min.
Table 3 shows the formulation (parts) of 2 commercial products (i.e., comparative example 4, comparative example 5) for carbon fiber composite coating.
Table 3:
the coatings obtained in examples 1-3 and comparative examples 1-5 were applied to the surfaces of carbon fiber composite substrates, allowed to stand at room temperature for 5-10min, baked at 80℃for 30-45min, and the properties of the coating films were tested. The test index, test standard and test result are shown in tables 4 and 5.
TABLE 4 Table 4
TABLE 5
As can be seen from the above test, the invention can achieve excellent performance, good adhesion, good hardness, impact resistance, excellent water resistance, chemical resistance, wet heat resistance, salt fog resistance and weather resistance after being baked at the low temperature of 80 ℃ for 30-45 minutes. In addition, examples 1-3 used the specially configured complex solvents of the present invention, with a continuous evaporation gradient, provided the necessary and sufficient leveling time for the wet film after coating, and exhibited an aesthetically pleasing dry film effect after bake curing. While in comparative examples 1 to 3, other compound solvents were used, the appearance of the paint film was uneven and not smooth enough. The drying time required for comparative examples 4 to 6 was significantly longer, and the hardness, impact resistance, water resistance, chemical resistance, wet heat resistance, salt spray resistance, and weather resistance could not all meet the requirements.
Claims (4)
1. The single-component low-temperature environment-friendly coating for coating the carbon fiber composite material is characterized by comprising the following raw materials in parts by weight: 50-55 parts of LF-8110 polyester modified acrylic resin, 15-20 parts of cellulose acetate butyrate, 1-2 parts of adhesive, 0.5-1 part of ultraviolet absorber, 0.5-1 part of light stabilizer, 7-9 parts of cyanogen CYMEL325 low-temperature cross-linking agent, 0.3-0.5 part of flatting agent and 12-20 parts of diluent;
the diluent is a composite solvent with the weight portion ratio of 40-50:10-20:5-15:15-25:10-15 of butyl acetate, propylene glycol methyl ether acetate, diacetone alcohol, ethyl acetate and n-butanol.
2. The single-component low-temperature environment-friendly coating for carbon fiber composite coating according to claim 1, wherein the preparation raw materials are as follows: 50 to 55 parts of LF-8110 polyester modified acrylic resin, 15 to 20 parts of CAB-551-0.2 (30 percent), 1 to 2 parts of adhesive EA-2118, 0.5 to 1 part of ultraviolet absorbent Tinuvin, 0.5 to 1 part of light stabilizer Tinuvin292, 7 to 9 parts of low-temperature cross-linking agent cyanogen CYMEL325, 0.3 to 0.5 part of flatting agent BYK-333 and 12 to 20 parts of thinner as defined in claim 1.
3. A method for preparing the single-component low-temperature environment-friendly paint for coating the carbon fiber composite material according to any one of claims 1-2, which is characterized by comprising the following steps:
s1, mixing polyester modified acrylic resin, a cross-linking agent and cellulose acetate butyrate solution, and uniformly dispersing by a high-speed dispersing machine;
s2, sequentially adding a diluent, an adhesive, a light stabilizer and an ultraviolet absorber for uniform dispersion, and then adding a leveling agent for uniform dispersion.
4. A construction method of a single-component low-temperature environment-friendly paint for coating a carbon fiber composite material according to any one of claims 1-2, which is characterized by comprising the following steps: spraying the paint on the surface of the carbon fiber composite material substrate by using a spraying robot, keeping the paint film thickness at 25-30 mu m, standing for 5-10min at normal temperature after spraying, entering a baking section, baking for 30-45min at 75-85 ℃, and packaging after taking off the line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211691804.1A CN115895365B (en) | 2022-12-28 | 2022-12-28 | Single-component low-temperature environment-friendly paint for carbon fiber composite material coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211691804.1A CN115895365B (en) | 2022-12-28 | 2022-12-28 | Single-component low-temperature environment-friendly paint for carbon fiber composite material coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115895365B true CN115895365B (en) | 2023-11-07 |
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| CN102391726A (en) * | 2011-07-26 | 2012-03-28 | 东来涂料技术（上海）有限公司 | Black single-component solid color paint for automobile repair and preparation method thereof |
| CN104312410A (en) * | 2014-07-01 | 2015-01-28 | 廊坊立邦涂料有限公司 | Amino-baking coating composition with self-cleaning function, and preparation method thereof |
| JP2017145374A (en) * | 2016-02-19 | 2017-08-24 | 関西ペイント株式会社 | Coating Composition |
| CN108893024A (en) * | 2018-06-01 | 2018-11-27 | 浙江枧洋高分子科技有限公司 | A kind of low-temperature fast-curing electrochemical aluminum paint |
| CN114479627A (en) * | 2020-10-23 | 2022-05-13 | 立邦涂料（中国）有限公司 | Single-component low-temperature crosslinking water-based paint and preparation method thereof |
| CN115160905A (en) * | 2022-07-28 | 2022-10-11 | 上海佑戈金属科技有限公司 | Metal base band black precoating coating and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150175834A1 (en) * | 2013-12-19 | 2015-06-25 | Axalta Coating Systems Ip Co., Llc | Low bake temperature curable coating compositions and processes for producing coatings at low bake temperatures |
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2022
- 2022-12-28 CN CN202211691804.1A patent/CN115895365B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391726A (en) * | 2011-07-26 | 2012-03-28 | 东来涂料技术（上海）有限公司 | Black single-component solid color paint for automobile repair and preparation method thereof |
| CN104312410A (en) * | 2014-07-01 | 2015-01-28 | 廊坊立邦涂料有限公司 | Amino-baking coating composition with self-cleaning function, and preparation method thereof |
| JP2017145374A (en) * | 2016-02-19 | 2017-08-24 | 関西ペイント株式会社 | Coating Composition |
| CN108893024A (en) * | 2018-06-01 | 2018-11-27 | 浙江枧洋高分子科技有限公司 | A kind of low-temperature fast-curing electrochemical aluminum paint |
| CN114479627A (en) * | 2020-10-23 | 2022-05-13 | 立邦涂料（中国）有限公司 | Single-component low-temperature crosslinking water-based paint and preparation method thereof |
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