CN115637101A - Varnish for automotive interior parts and preparation method thereof - Google Patents
Varnish for automotive interior parts and preparation method thereof Download PDFInfo
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- CN115637101A CN115637101A CN202211395990.4A CN202211395990A CN115637101A CN 115637101 A CN115637101 A CN 115637101A CN 202211395990 A CN202211395990 A CN 202211395990A CN 115637101 A CN115637101 A CN 115637101A
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- 239000002966 varnish Substances 0.000 title claims abstract description 77
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 50
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 239000002904 solvent Substances 0.000 claims abstract description 22
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 44
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 40
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 40
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 40
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 31
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical group CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 20
- 230000009477 glass transition Effects 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-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
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 239000004611 light stabiliser Substances 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
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 239000011347 resin Substances 0.000 description 39
- 229920005989 resin Polymers 0.000 description 39
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 20
- 239000012975 dibutyltin dilaurate Substances 0.000 description 19
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 18
- 239000000654 additive Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 8
- 238000002156 mixing Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses varnish for automotive upholsteries and a preparation method thereof, wherein the coating consists of the varnish for the automotive upholsteries and a curing agent, and the varnish for the automotive upholsteries comprises the following components in parts by weight: 50-60 parts of high-hydroxyl acrylic resin, 15-20 parts of medium-hydroxyl acrylic resin, 0.02-0.05 part of drier, 0.2-0.5 part of flatting agent, 1.5-2.0 parts of weather-resistant auxiliary agent, 1.5-2.0 parts of wear-resistant auxiliary agent, 7-8 parts of first solvent and 7-10 parts of second solvent; the curing agent is a curing agent. The varnish for the automotive interior parts can be applied to automotive interior and exterior parts, and has excellent scratch resistance.
Description
Technical Field
The invention relates to the technical field of automobile coatings, in particular to varnish for automobile interior parts and a preparation method thereof.
Background
At present, in the field of automobile interior and exterior decoration, the hardness of common varnish is B ～ HB and abrasion resistant RCA of 100 ～ 250 times, the wear resistance is poor, so that a paint film is easily scratched when a car is washed or wiped, the gloss is reduced, or the surface of the paint film is scratched, and the attractiveness of the automobile paint is seriously affected.
Therefore, the prior art is still subject to further improvement and promotion.
Disclosure of Invention
The invention aims to provide varnish for automotive upholsteries, which can form a coating with high hardness and high wear resistance, improve the performances of wiping resistance, car washing resistance and the like of automotive coatings, and improve the lasting aesthetic property of the automotive coatings.
Still another object of the present invention is to provide a method for preparing a varnish for automotive upholsteries, by which a coating layer having high hardness and high abrasion resistance can be formed.
In order to achieve the above object, the present invention provides a varnish for automotive upholsteries, comprising, in parts by weight: 50-60 parts of high-hydroxyl acrylic resin, 15-20 parts of medium-hydroxyl acrylic resin, 0.02-0.05 part of drier, 0.2-0.5 part of flatting agent, 1.5-2.0 parts of weather-resistant auxiliary agent, 1.5-2.0 parts of wear-resistant auxiliary agent, 7-8 parts of first solvent and 7-10 parts of second solvent.
Compared with the prior art, the varnish for the automotive upholstery adopts the high-hydroxyl acrylic resin to ensure that the coating has higher crosslinking density, so that the coating has higher hardness and wear resistance, and the medium-hydroxyl acrylic resin ensures that the coating has higher adhesive force.
Preferably, the high hydroxyl acrylic resin has a hydroxyl content ranging from 4.2 to 5.0 percent, a glass transition temperature (Tg) of 70 to 85 ℃, a rigid group content of more than or equal to 25 percent and a solid content of more than or equal to 72 percent; the hydroxyl content of the medium hydroxyl acrylic resin is 3.6-4.2%, the solid content is more than or equal to 75%, and the glass transition temperature (Tg) is 50-70 ℃.
Preferably, the drier of the present invention is at least one of an organotin drier and an organoamine drier. More specifically, the drier is dibutyltin dilaurate available from BYK, pyK, germany under the designation T-12.
Preferably, the leveling agent of the present invention is at least one of an organosilicon leveling agent and an acrylic leveling agent. Specifically, the leveling agent is at least one of BYK306, BYK333, BYK358, tego 410.
Preferably, the weather-resistant auxiliary agent of the present invention is one or both of a hindered amine light stabilizer and an ultraviolet light absorber.
Preferably, the wear-resistant auxiliary agent is a nano silicon dioxide solution. Such as HR-6930 and HR-6960 of Syney.
Preferably, the curing agent of the present invention comprises 60 to 65 parts by weight of an isocyanate (HDI) curing agent.
Preferably, the first solvent of the present invention comprises 3 to 4 parts of an ester solvent and 4 to 5 parts of an alcohol ether solvent, and the second solvent comprises 7 to 10 parts of a ketone solvent. More specifically, the ester solvent is at least one of butyl acetate, ethyl acetate and propylene glycol methyl ether acetate, the alcohol ether solvent is ethylene glycol butyl ether, and the ketone solvent comprises at least one of butanone, cyclohexanone and isophorone.
In order to achieve the above object, the present invention provides a method for preparing a varnish for automotive upholsteries, comprising the steps of:
according to the raw material ratio, sequentially adding high hydroxyl acrylic resin, medium hydroxyl acrylic resin and a first solvent in a production container while stirring, and continuously stirring for 15min at the speed of 900 r/min;
and sequentially adding a drier, a flatting agent, a wear-resistant auxiliary agent, a weather-resistant auxiliary agent and a second solvent into the mixture, stirring while adding, and uniformly stirring to obtain the varnish for the automotive upholstery.
Preferably, the varnish for the automotive upholstery and the curing agent are uniformly mixed according to the mass ratio of 2.
Detailed Description
In order to explain the technical solution, the object and the technical effect of the present invention in detail, the following description is made with reference to specific examples.
Example 1
The embodiment provides varnish for automotive upholsteries, which comprises the following components in parts by weight: 60 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 4.5 percent, the glass transition temperature (Tg) of the resin is 85 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 74 percent; 15 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 4.0 percent, the glass transition temperature (Tg) is 60 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of ethylene glycol butyl ether acetate, 4 parts of ethylene glycol butyl ether, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) And sequentially adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain the varnish for the automotive upholstery.
When in use, the varnish for the automotive upholstery and the curing agent are uniformly mixed according to the mass ratio of 2.
Example 2
The embodiment provides varnish for automotive interior parts, which comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 80 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.9 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of ethylene glycol butyl ether acetate, 4 parts of ethylene glycol butyl ether, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
when in use, the varnish for the automotive upholstery and the curing agent are uniformly mixed according to the mass ratio of 3.
Comparative example 1
The embodiment provides varnish for automotive upholsteries, which consists of the varnish for the automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 75 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 80 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of butyl cellosolve acetate, 4 parts of butyl cellosolve, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
(3) The varnish for the automotive interior parts and the curing agent are uniformly mixed according to the mass ratio of 2.
Comparative example 2
The embodiment provides varnish for automotive upholsteries, which consists of varnish for automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 75 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.9 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of butyl cellosolve acetate, 4 parts of butyl cellosolve, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
(3) Uniformly mixing varnish for the automotive interior trim part and a curing agent according to a mass ratio of 2.
Comparative example 3
The embodiment provides varnish for automotive upholsteries, which consists of varnish for automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.0 percent, the glass transition temperature (Tg) of the resin is 75 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.9 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of ethylene glycol butyl ether acetate, 4 parts of ethylene glycol butyl ether, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) According to the raw material ratio, adding high hydroxyl acrylic resin and medium hydroxyl acrylic resin into a container, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
(3) Uniformly mixing varnish for the automotive interior trim part and a curing agent according to a mass ratio of 2.
Comparative example 4
The embodiment provides varnish for automotive upholsteries, which consists of the varnish for the automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 80 ℃, rigid groups do not exist in the resin, and the solid content is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.9 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of butyl cellosolve acetate, 4 parts of butyl cellosolve, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) According to the raw material ratio, adding high hydroxyl acrylic resin and medium hydroxyl acrylic resin into a container, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain the varnish for the automotive upholstery;
(3) Uniformly mixing varnish for the automotive interior trim part and a curing agent according to a mass ratio of 2.
Comparative example 5
The embodiment provides varnish for automotive upholsteries, which consists of the varnish for the automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 80 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.0 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of butyl cellosolve acetate, 4 parts of butyl cellosolve, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
(3) Uniformly mixing varnish for the automotive interior trim part and a curing agent according to a mass ratio of 2.
Comparative example 6
The embodiment provides varnish for automotive upholsteries, which consists of varnish for automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 80 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 4.0 percent, the glass transition temperature (Tg) is 65 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,4 parts of ethylene glycol butyl ether acetate, 4 parts of ethylene glycol butyl ether, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain varnish for the automotive upholstery;
(3) The varnish for the automotive interior parts and the curing agent are uniformly mixed according to the mass ratio of 2.
Comparative example 7
The embodiment provides varnish for automotive upholsteries, which consists of varnish for automotive upholsteries and a curing agent, wherein the varnish for the automotive upholsteries comprises the following components in parts by weight: 55 parts of high-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 5.0 percent, the glass transition temperature (Tg) of the resin is 30 ℃, the rigid group content of the resin is 30 percent, and the solid content of the resin is 75 percent; 20 parts of medium-hydroxyl acrylic resin, wherein the hydroxyl content of the resin is 3.9 percent, the glass transition temperature (Tg) is 25 ℃, and the solid content is 75 percent; 0.02 part of dibutyltin dilaurate, 0.2 part of BYK358N,0.2 part of BYK333,0.5 part of EFKA292,1.0 part of EFKA1130,2.0 parts of a wear-resistant additive, 4 parts of butyl cellosolve acetate, 4 parts of butyl cellosolve, 1 part of isophorone, 3 parts of cyclohexanone and 5 parts of butanone;
the curing agent comprises 60 parts of HDI curing agent.
The preparation method of the varnish for the automotive interior part comprises the following steps:
(1) Adding high-hydroxyl acrylic resin and medium-hydroxyl acrylic resin into a container according to the raw material ratio, sequentially adding ethylene glycol butyl ether acetate and ethylene glycol butyl ether, and uniformly stirring;
(2) Adding BYK358N, dibutyltin dilaurate, BYK333, EFKA292, EFKA1130, a wear-resistant auxiliary agent, isophorone, cyclohexanone and butanone into the mixture in sequence, stirring at the stirring speed of 900r/min, and uniformly stirring to obtain the varnish for the automotive upholstery;
(3) The varnish for the automotive interior parts and the curing agent are uniformly mixed according to the mass ratio of 2. The performances of the varnishes for automobile interior parts of examples 1 to 2 and comparative examples 1 to 6 were tested according to table 1. The test results are shown in table 2.
TABLE 1
TABLE 2
| Test items | Adhesion force | Hardness of | RCA resistance |
| Example 1 | Level 0 | 3H | 700 times |
| Example 2 | Level 0 | 4H | 760 times |
| Comparative example 1 | Stage 2 | 4H | 800 times |
| Comparative example 2 | Grade 0 | HB | 95 times |
| Comparative example 3 | Grade 0 | 2H | 200 times (one time) |
| Comparative example 4 | Level 0 | 1H | 180 times (times) |
| Comparative example 5 | Level 0 | 3H | 550 times (twice) |
| Comparative example 6 | Level 0 | 2H | 500 times (times) |
| Comparative example 7 | Grade 0 | 2H | 160 times (a) |
Comparing the test results, the performance indexes of the embodiments 1 and 2 can meet the requirements; the adhesion of comparative example 1 did not meet the requirements; comparative examples 2, 3, 4, 5, 6, and 7 were acceptable in terms of adhesion, but both hardness and RCA resistance were not satisfactory.
By comparison, the overall performance of examples 1, 2 is significantly better than comparative examples 1, 2, 3, 4, 5, 6, 7.
Mass production can be realized.
Claims (10)
1. A varnish for automotive interior parts is characterized by comprising the following components in parts by weight: 50-60 parts of high-hydroxyl acrylic resin, 15-20 parts of medium-hydroxyl acrylic resin, 0.02-0.05 part of drier, 0.2-0.5 part of flatting agent, 1.5-2.0 parts of weather-resistant auxiliary agent, 1.5-2.0 parts of wear-resistant auxiliary agent, 7-8 parts of first solvent and 7-10 parts of second solvent.
2. The varnish for automotive upholsteries according to claim 1, wherein the high-hydroxyl acrylic resin has a hydroxyl group content of 4.2 to 5.0 percent, a glass transition temperature of 70 to 85 ℃, a rigid group content of not less than 25 percent and a solid content of not less than 72 percent; the hydroxyl content of the medium hydroxyl acrylic resin is 3.6-4.2%, the solid content is more than or equal to 75%, and the glass transition temperature is 50-70 ℃.
3. The varnish for automotive upholsteries according to claim 1, wherein the drier is one or more selected from the group consisting of organotin driers and organoamine driers.
4. The varnish for automotive upholsteries according to claim 1, wherein the leveling agent comprises: an organic silicon leveling agent and an acrylic leveling agent.
5. The varnish for automotive upholsteries according to claim 1, wherein the abrasion resistant assistant is a nano silica solution.
6. The varnish for automotive interiors according to claim 1, wherein said weathering aid comprises: hindered amine light stabilizers and ultraviolet light absorbers.
7. The varnish for automotive interiors according to claim 1, further comprising a curing agent comprising 65 to 70 parts by weight of HDI curing agent.
8. The varnish for automotive upholsteries according to claim 1, wherein the first solvent comprises 3 to 5 parts of an ester solvent and 4 to 6 parts of an alcohol ether solvent, and the second solvent comprises 8 to 10 parts of a ketone solvent.
9. The varnish for automotive upholsteries according to claim 8, wherein the ester solvent is at least one of butyl acetate, ethyl acetate, and propylene glycol methyl ether acetate; the alcohol ether solvent is ethylene glycol butyl ether, and the ketone solvent comprises at least one of butanone, cyclohexanone and isophorone.
10. A method for producing the varnish for automotive upholsteries as recited in any one of claims 1 to 9, characterized by comprising the steps of:
according to the raw material ratio, sequentially adding high hydroxyl acrylic resin, medium hydroxyl acrylic resin and a first solvent in a production container while stirring, and continuously stirring for 15min at the speed of 900 r/min;
and sequentially adding a drier, a flatting agent, a wear-resistant assistant, a weather-resistant assistant and a second solvent into the mixture, stirring while adding, and uniformly stirring to obtain the varnish for the automotive upholstery.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277078A (en) * | 2011-07-26 | 2011-12-14 | 东来涂料技术（上海）有限公司 | Practical quick-drying varnish and preparation method thereof |
| CN102702888A (en) * | 2012-05-31 | 2012-10-03 | 长城汽车股份有限公司 | Low-temperature quick-drying dual-component automotive trim paint |
| CN111410881A (en) * | 2020-04-17 | 2020-07-14 | 广东省漆色彩新型材料有限公司 | Integrated coating paint for plastic parts and preparation method and coating method thereof |
| CN112831265A (en) * | 2020-12-31 | 2021-05-25 | 上海飞凯光电材料股份有限公司 | PU (polyurethane) coating and application thereof |
| CN114456693A (en) * | 2021-12-22 | 2022-05-10 | 惠州市凯辉化工有限公司 | Magnesium alloy PU piano black paint for vehicle |
-
2022
- 2022-11-08 CN CN202211395990.4A patent/CN115637101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277078A (en) * | 2011-07-26 | 2011-12-14 | 东来涂料技术（上海）有限公司 | Practical quick-drying varnish and preparation method thereof |
| CN102702888A (en) * | 2012-05-31 | 2012-10-03 | 长城汽车股份有限公司 | Low-temperature quick-drying dual-component automotive trim paint |
| CN111410881A (en) * | 2020-04-17 | 2020-07-14 | 广东省漆色彩新型材料有限公司 | Integrated coating paint for plastic parts and preparation method and coating method thereof |
| CN112831265A (en) * | 2020-12-31 | 2021-05-25 | 上海飞凯光电材料股份有限公司 | PU (polyurethane) coating and application thereof |
| CN114456693A (en) * | 2021-12-22 | 2022-05-10 | 惠州市凯辉化工有限公司 | Magnesium alloy PU piano black paint for vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 符韵林: "《用二氧化硅改良木材表面性能的研究》", 10 February 2011, pages: 9 * |
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