CN103740223B - A kind of water base property car light reflector plated film coating and preparation method thereof - Google Patents
A kind of water base property car light reflector plated film coating and preparation method thereof Download PDFInfo
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- CN103740223B CN103740223B CN201410011249.2A CN201410011249A CN103740223B CN 103740223 B CN103740223 B CN 103740223B CN 201410011249 A CN201410011249 A CN 201410011249A CN 103740223 B CN103740223 B CN 103740223B
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- diacetone alcohol
- car light
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- light reflector
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Abstract
A kind of water base property car light reflector plated film coating and preparation method thereof, relates to vacuum metallizing coating.Described coating raw material in mass ratio consists of acrylate resin 100, epoxy resin 15 ~ 30, aminoresin 20 ~ 35; Wherein, acrylate resin consisting of in mass ratio: butyl acrylate 100, hydroxyethyl methylacrylate 18 ~ 22, methacrylic acid 8 ~ 12.Butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid are added in container, and add diacetone alcohol and n-butanol mixed solvent, stir at 95 ~ 105 DEG C, benzoyl peroxide is dissolved in diacetone alcohol solvent, add benzoyl peroxide diacetone alcohol solution again, after reaction, obtain acrylic ester resin solution; Epoxy resin, aminoresin are added in diacetone alcohol and n-butanol mixed solvent, gained epoxy resin amino resin solution is added in acrylic ester resin solution, obtain solvent based coating after reaction, then add distilled water, obtain product.
Description
Technical field
The present invention relates to vacuum metallizing coating, especially relate to one water base property car light reflector plated film coating based on acrylate resin and preparation method thereof.
Background technology
Along with increasing substantially of people's economic life level, automobile usage quantity increases with surprising rapidity, and the automobile lamp reflector market requirement is also increasing thereupon.The Bulk Molding Compound that automobile lamp reflector uses, without its surface irregularity of plating, in order to make it to reach good sky light effect, need at its electroplating surface metal aluminium lamination, make its smooth surface, therefore plating piece surface can have height metal gloss and mirror effect.Because Bulk Molding Compound is after being shaped to car light reflector, article surface is coarse, and containing volatile impunty, if Direct Electroplating, plate surface luminance brightness can be made low, electrolytic coating can affect electroplating quality due to the volatilization of volatile impunty, and Bulk Molding Compound surface polarity is lower, and electrolytic coating attachment is poor.Therefore, in order to obtain mirror effect and the car light quality of ideal car light reflection, greatly improving plated film luminance brightness, needing to carry out primary coat art breading to the lampshade base material of car light.
Current the applied vacuum metallizing coating of domestic car light reflector plated film industry, mainly relies on import, valuable product, and solvent is all benzene classes etc. has more highly toxic solvent, and life-time service has grievous injury to human body.In imported product, share of market is higher at home for japanese product, and performance is fine, but price, and with benzene class for solvent, to environment and harm large.Domesticly at present there is no the coating matched for the requirement of car light reflector plated film, although existing a small amount of product can be used for car light reflector plated film, but it is also solvent based coating, and thermotolerance is lower, in car light life-time service process film easily occur sending out color, harden, the phenomenon such as be clamminess, and cannot meet life-time service requirement.By dissecting the molecular structure of Japanese imported product, finding that it is take polyhutadiene as the resin of main chain, and this resin, due to its special molecular structure, makes it have excellent resistance to elevated temperatures, second-order transition temperature is low simultaneously, can obtain the coating of high solids content.But benzene class need be adopted to make solvent, and price is high, constrains the application of this product.Chinese patent CN101864204A discloses the special primer of ultraviolet-curing vacuum coating of a kind of high-performing car lamp reflector, the composition of this priming paint and proportioning are: matrix resin 40 ~ 80%, assisted resin 8 ~ 50%, reactive thinner 10 ~ 40%, light trigger 0.5 ~ 10%, auxiliary agent 0.05 ~ 8%, solvent 0 ~ 50%, also disclose a kind of photocuring multipolymer, as the matrix resin using UV priming paint before vehicle lamp coating.Chinese patent CN1693396 vacuum metallizing coating, the weight percent of its raw material is: vegetables oil 20 ~ 28%; Polyvalent alcohol 1 ~ 10%; Acid anhydrides 0 ~ 5%; Rosin ester 12 ~ 35%; Acrylic copolymer 1 ~ 5%; Polyhydroxylated polymer 0.1 ~ 3%; Modified polyolefin 0 ~ 5%; Isocyanic ester 2 ~ 4.5%; Mixed solvent 35 ~ 60%, is made by reactions such as alcoholysis, esterification, addition, ammonia esterifications.
Summary of the invention
The object of the present invention is to provide a kind of water base property car light reflector plated film coating and preparation method thereof.
Described water base property car light reflector plated film coating raw material in mass ratio consists of acrylate resin 100, epoxy resin 15 ~ 30, aminoresin 20 ~ 35; Wherein, acrylate resin consisting of in mass ratio: butyl acrylate 100, hydroxyethyl methylacrylate 18 ~ 22, methacrylic acid 8 ~ 12.
The chemical structural formula of described butyl acrylate is as follows:
The chemical structural formula of described methyl olefin(e) acid hydroxyl ethyl ester is as follows:
The chemical structural formula of described methacrylic acid is as follows:
Described epoxy resin can adopt bisphenol A diglycidyl ether etc., and the chemical structural formula of described epoxy resin bisphenol A diglycidyl ether is as follows:
Described in state ammoniacal liquor base base tree property car fat lamp and can adopt anticaustic many covers hydroxyl plating basement membrane of penetrating and be coated with the cyanogen processed of modifying material three for amine Fang Shufa, fat bag R79 draws together 7 with under grade.Step:
1) butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid are added in container, and add diacetone alcohol and n-butanol mixed solvent, stir at 95 ~ 105 DEG C, benzoyl peroxide is dissolved in diacetone alcohol solvent, add benzoyl peroxide diacetone alcohol solution again, after reaction, obtain acrylic ester resin solution;
2) epoxy resin, aminoresin are added in diacetone alcohol and n-butanol mixed solvent, gained epoxy resin amino resin solution is added in acrylic ester resin solution prepared by step 1), solvent based coating is obtained after reaction, add distilled water again, after regulating required viscosity and solid content, obtain water base property car light reflector plated film coating.
In step 1), the add-on of described diacetone alcohol and n-butanol mixed solvent can be butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid total mass 80% ~ 120%, described diacetone alcohol and propyl carbinol can be 1 ︰ (0.8 ~ 1.2) in mass ratio; The consumption of described benzoyl peroxide can be butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid total mass 1.5% ~ 2%, the mass percent concentration of described benzoyl peroxide can be 8% ~ 15%; The described time adding benzoyl peroxide diacetone alcohol solution can be 45 ~ 60min; The condition of described reaction can react 2 ~ 2.5h at 95 ~ 105 DEG C.
In step 2) in, described diacetone alcohol and propyl carbinol can be 1 ︰ (0.4 ~ 0.6) in mass ratio, and the add-on of described mixed solvent can be 80% ~ 120% of epoxy resin and aminoresin total mass; The condition of described reaction can react 50 ~ 80min at 85 ~ 95 DEG C; The add-on of described distilled water can be 8% ~ 15% of solvent based coating total amount.
The using method of described water base property car light reflector plated film coating is as follows:
By water base property car light reflector plated film paint spay-coating on base material, after being heating and curing, namely obtain the second best in quality film layer; The described condition be heating and curing can be heating and curing by 180 DEG C/2h.
Water base property car light reflector plated film coating provided by the present invention, after 180 DEG C/2h solidifies, the film obtained is transparent, film adhesive (hundred lattice methods) 100%, and film scratch pencil hardness is 3H.Film after 220 DEG C/2h non yellowing, do not send out coloured silk, sticking power is 100%.Film toasts non yellowing after 2h through ultraviolet, does not send out coloured silk, sticking power 100%.The proper extension of film with set time and the suitable raising of solidification value, sticking power has enhancing trend.Film layer thermal characteristics and Dynamic thermo-mechanical property are as illustrated in fig. 1 and 2.
Acrylate resin is with saturated C-C key for main chain, and side chain, with the carboxylic acid ester groups of polarity, can give the good heatproof oxidation performance of coating, weathering resistance, oil-proofness and adhesivity, but its thermotolerance is poor.In order to obtain the plated film coating that can be used for the requirement of car light reflector, the present invention carries out structurally-modified to acrylate resin, improve its thermotolerance, and the cementability of itself and ground, obtain water-soluble good acrylate resin by Molecular Structure Design simultaneously, not only achieve the requirement such as thermotolerance, cementability of car light reflector plated film coating, and overcome with the problem of benzene class existing for solvent, realize the preparation of the acrylate paint of the water base property car light reflector plated film taking alcohol as solubility promoter.
Water base property car light reflector plated film coating prepared by the present invention is based on acrylate resin, aminoresin, epoxy resin, good consistency is had with glassware for drinking water, there is good heat-resistant stability, improve plated film luminance brightness, obtain mirror effect and the car light quality of comparatively good car light reflection.
Described plated film coating by Molecular Structure Design, introduces wetting ability and can the functional group of crosslinking curing, makes it there is good consistency with glassware for drinking water, and realizing take alcohol as the plated film coating of solubility promoter, water base property, can reach resistant to elevated temperatures requirement after this paint solidification simultaneously.This coating mainly contains the acrylate resin of autonomous synthesis, and aminoresin and epoxy resin composition, coating three kinds of interlaminar resins in film process are cross-linked with each other, strengthen intermolecular reactive force, thermostability, sticking power are improved, cross-linked network structure makes this coating have excellent hardness, solvent resistance etc. simultaneously, thus can meet the service requirements of car light reflector base material primary coat plated film.
Accompanying drawing explanation
Fig. 1 is the thermal characteristics curve (DSC curve) of water base property acrylate plated film coating.
Fig. 2 is the Dynamic thermo-mechanical property (DMA curve) of water base property acrylate plated film coating.
Embodiment
The present invention is further illustrated by reference to the accompanying drawings for embodiment below.
Embodiment 1
Join in container by butyl acrylate (BA) 100g, hydroxyethyl methylacrylate (HEMA) 20g, methacrylic acid (MAA) 10g and solvent diacetone alcohol 60g, propyl carbinol 60g, 95 ~ 100 DEG C are stirred 5min.Be dissolved in by benzoyl peroxide 2g in 30g diacetone alcohol, be slowly added drop-wise in the container of reaction by dibenzoyl peroxide diacetone alcohol solution, 95 ~ 100 DEG C of stirring reaction 3h, obtain acrylate resin.
By epoxy resin 30g, aminoresin 35g, is dissolved in the diacetone alcohol of 40g and the propyl carbinol mixing solutions of 20g, slowly add in the acrylate resin of the above-mentioned synthesis of 120g, be uniformly mixed 1h at 85 ~ 90 DEG C, with 25ml distilled water adjusting coating viscosity and solid content, obtain water base property coating.
Embodiment 2
Join in container by butyl acrylate (BA) 100g, hydroxyethyl methylacrylate (HEMA) 20g, methacrylic acid (MAA) 10g and solvent diacetone alcohol 60g, propyl carbinol 60g, 95 ~ 100 DEG C are stirred 5min.Be dissolved in by benzoyl peroxide 2g in 30g diacetone alcohol, be slowly added drop-wise in the container of reaction by dibenzoyl peroxide diacetone alcohol solution, 95-100 DEG C of stirring reaction 3h, obtains acrylate resin.
By epoxy resin 20g, aminoresin 25g, is dissolved in the diacetone alcohol of 30g and the propyl carbinol mixing solutions of 15g, slowly add in the acrylate resin of the above-mentioned synthesis of 120g, be uniformly mixed 1h at 85 ~ 90 DEG C, with 22ml distilled water adjusting coating viscosity and solid content, obtain water base property coating.
Embodiment 3
Join in container by butyl acrylate (BA) 100g, hydroxyethyl methylacrylate (HEMA) 20g, methacrylic acid (MAA) 10g and solvent diacetone alcohol 60g, propyl carbinol 60g, 95 ~ 100 DEG C are stirred 5min.Be dissolved in by benzoyl peroxide 2g in 30g diacetone alcohol, be slowly added drop-wise in reaction vessel by dibenzoyl peroxide diacetone alcohol solution, 95 ~ 100 DEG C of stirring reaction 3h, obtain acrylate resin.
By epoxy resin 15g, aminoresin 20g, is dissolved in the diacetone alcohol of 20g and the propyl carbinol mixing solutions of 10g, slowly add in the acrylate resin of the above-mentioned synthesis of 120g, be uniformly mixed 1h at 85 ~ 90 DEG C, with 18ml distilled water adjusting coating viscosity and solid content, obtain water base property coating.
Claims (6)
1. a water base property car light reflector plated film coating, is characterized in that its raw material in mass ratio consists of acrylate resin 100, epoxy resin 15 ~ 30, aminoresin 20 ~ 35; Wherein, acrylate resin consisting of in mass ratio: butyl acrylate 100, hydroxyethyl methylacrylate 18 ~ 22, methacrylic acid 8 ~ 12;
The chemical structural formula of described butyl acrylate is as follows:
CH
2＝CH-COOCHCH
2CH
2CH
3
The chemical structural formula of described hydroxyethyl methylacrylate is as follows:
The chemical structural formula of described methacrylic acid is as follows:
Described epoxy resin adopts bisphenol A diglycidyl ether, and the chemical structural formula of described epoxy resin bisphenol A diglycidyl ether is as follows:
Described acrylate resin is prepared by following methods:
Butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid are added in container, and add diacetone alcohol and n-butanol mixed solvent, stir at 95 ~ 105 DEG C, benzoyl peroxide is dissolved in diacetone alcohol solvent, add benzoyl peroxide diacetone alcohol solution again, after reaction, obtain acrylic ester resin solution; The add-on of described diacetone alcohol and n-butanol mixed solvent be butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid total mass 80% ~ 120%; The described time adding benzoyl peroxide diacetone alcohol solution is 45 ~ 60min.
2. a kind of water base property car light reflector plated film coating as claimed in claim 1, is characterized in that described aminoresin adopts poly-hydroxy modified cyanurotriamide resin R797.
3. a kind of water base property car light reflector plated film coating as claimed in claim 1, is characterized in that described diacetone alcohol and propyl carbinol are 1 ︰ (0.8 ~ 1.2) in mass ratio.
4. a kind of water base property car light reflector plated film coating as claimed in claim 1, it is characterized in that the consumption of described benzoyl peroxide be butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid total mass 1.5% ~ 2%, the mass percent concentration of described benzoyl peroxide is 8% ~ 15%.
5. a kind of water base property car light reflector plated film coating as claimed in claim 1, is characterized in that the condition of described reaction reacts 2 ~ 2.5h at 95 ~ 105 DEG C.
6. the preparation method of a kind of water base property car light reflector plated film coating as claimed in claim 1, is characterized in that its concrete steps are as follows:
Epoxy resin, aminoresin are added in diacetone alcohol and n-butanol mixed solvent, gained epoxy resin amino resin solution is added in acrylic ester resin solution, solvent based coating is obtained after reaction, add distilled water again, after regulating required viscosity and solid content, obtain water base property car light reflector plated film coating; Described diacetone alcohol and propyl carbinol are 1 ︰ (0.4 ~ 0.6) in mass ratio, and the add-on of described mixed solvent is 80% ~ 120% of epoxy resin and aminoresin total mass; The condition of described reaction reacts 50 ~ 80min at 85 ~ 95 DEG C; The add-on of described distilled water is 8% ~ 15% of solvent based coating total amount.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011249.2A CN103740223B (en) | 2014-01-10 | 2014-01-10 | A kind of water base property car light reflector plated film coating and preparation method thereof |
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| CN201410011249.2A CN103740223B (en) | 2014-01-10 | 2014-01-10 | A kind of water base property car light reflector plated film coating and preparation method thereof |
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| CN103740223A CN103740223A (en) | 2014-04-23 |
| CN103740223B true CN103740223B (en) | 2016-03-16 |
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| CN105585927B (en) * | 2016-03-24 | 2017-10-10 | 浙江新迪在龙涂料科技有限公司 | A kind of LED solidifications spary coating type vacuum metallizing coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077955A (en) * | 2007-07-05 | 2007-11-28 | 湖南晟通科技有限公司 | Antiseptic and hydrophilic coating |
| CN101712833A (en) * | 2009-12-15 | 2010-05-26 | 重庆斯耐博涂料有限公司 | Water-based environment-friendly finishing paint and preparation method thereof |
| CN103450773A (en) * | 2012-05-30 | 2013-12-18 | 湖南博弈飞装备新材料研究所 | Epoxy acrylate modified high anticorrosion heat insulation paint containing porous ceramic addictive and production method thereof |
| CN103468039A (en) * | 2013-08-26 | 2013-12-25 | 无锡市金盛助剂厂 | Multicomponent crosslinking acrylate compound paint |
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2014
- 2014-01-10 CN CN201410011249.2A patent/CN103740223B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077955A (en) * | 2007-07-05 | 2007-11-28 | 湖南晟通科技有限公司 | Antiseptic and hydrophilic coating |
| CN101712833A (en) * | 2009-12-15 | 2010-05-26 | 重庆斯耐博涂料有限公司 | Water-based environment-friendly finishing paint and preparation method thereof |
| CN103450773A (en) * | 2012-05-30 | 2013-12-18 | 湖南博弈飞装备新材料研究所 | Epoxy acrylate modified high anticorrosion heat insulation paint containing porous ceramic addictive and production method thereof |
| CN103468039A (en) * | 2013-08-26 | 2013-12-25 | 无锡市金盛助剂厂 | Multicomponent crosslinking acrylate compound paint |
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