CN102796430A - Primer paint - Google Patents
Primer paint Download PDFInfo
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- CN102796430A CN102796430A CN2012103313418A CN201210331341A CN102796430A CN 102796430 A CN102796430 A CN 102796430A CN 2012103313418 A CN2012103313418 A CN 2012103313418A CN 201210331341 A CN201210331341 A CN 201210331341A CN 102796430 A CN102796430 A CN 102796430A
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- thermoplastic acrylic
- acrylic resin
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Abstract
The invention discloses a primer paint which comprises a thermoplastic acrylic resin, pigments and a solvent. The primer paint also comprises an auxiliary film forming matter vinyl chloride-vinyl acetate resin which accounts for 0.1-5 wt% of the paint, a hardness reinforcer which accounts for 0.1-6 wt% of the paint, and an assistant which accounts for 0.1-5 wt% of the paint. The glass transition temperature of the thermoplastic acrylic resin is not lower than 60 DEG C. The thermoplastic acrylic resin with high glass transition temperature and the auxiliary film forming matter vinyl chloride-vinyl acetate resin for enhancing adhesive force are adopted, thereby obviously enhancing the adhesive force between the primer layers and the adhesive force between the primer layers and the finish layer. The primer paint can be applied on the surface of various products, especially on the surface of a plastic product, to form a primer layer.
Description
Technical field
The present invention relates to a kind of primer coating compositions, particularly a kind of primer base that is used for the surface of plastic component product.
Background technology
At present, the surface of some products, enamelled coating and top coat layer, for example mobile phone shell, automobile plastic, power truck plastic etc. as the enamelled coating on the surface of plastic component product is divided into.Prime coat is generally formed by thermoplastic acrylic coating, and top coat layer is generally formed by ultraviolet-curing paint or two component polyurethane acrylate paint.Prime coat mainly provides the decorative colors of accessory, and top coat layer then provides the surface protection to prime coat and whole accessory.Prime coat generally applies one deck and gets final product, but sometimes for to reach special color effects or function, it also can be made up of multilayer.
The primer base that is used for the plastic component topcoating generally contains matrix resin, pigment and solvent, can also contain cellulose acetate butyrate (CAB) or Nitrocellulose (NC) or auxiliary agent.Matrix resin is a thermoplastic acrylic resin.Pigment is selected from white titanium pigment or filler.Auxiliary agent can be one or more in flow agent, the anti-settling agent wetting dispersing agent.The preparation method of primer base is generally matrix resin, cellulose acetate butyrate (CAB) or Nitrocellulose (NC) and auxiliary agent and solvent, adds pigment then and mixes.When this coating only sprays one deck, itself and following ground or with the sticking power of top finish paint (being mainly ultraviolet light polymerization lacquer (UV lacquer) or polyurethane paint (PU lacquer)) still can, and the hardness of whole enamelled coating also can reach requirement usually.But when priming paint was made up of the multi-layer thermoplastic vinyl resin, the sticking power between its prime coat and the layer was often not enough, and particularly wherein one deck is when containing the aluminium-silver slurry bottom, and it is especially outstanding that the phenomenon of ply adhesion variation becomes.
For the not enough problem of sticking power; General terms of settlement is in priming paint, to add adhesion promoter; But because common adhesion promoter has higher acid number usually; In general plain color lacquer, adding adhesion promoter does not still have big problem, can make its color and luster deepening but in silver color priming paint, add adhesion promoter, can not use in the occasion that needs high brightness silver color priming paint.
The primer base resin mostly adopts thermoplastic acrylic resin as matrix resin; This resin is after being heating and curing, and the enamelled coating pencil hardness test is under 1000 gram effects, and its hardness is often less than 1H; But behind its cover UV finish paint or PU finish paint; Because of thermoplastic acrylic resin is the crosslinking curing resin, and cross-linking density is bigger, and therefore the hardness of whole enamelled coating (comprising top coat layer and prime coat) can reach 2H.But when prime coat was mutliplayered coats of enamel, the hardness of prime coat can reduce rapidly along with the increase of the number of plies, caused the reduction of whole enamelled coating hardness and did not reach test request.
Summary of the invention
The objective of the invention is to overcome the existing lower shortcoming of primer base sticking power, provide a kind of sticking power the higher primer base that is used for the plastic component topcoating.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of primer base, comprise thermoplastic acrylic resin, pigment and solvent, and said primer base also contains and accounts for coating gross weight 0.1%-5% auxiliary film forming matter vinyl chloride-vinyl acetate resin.
The hardness reinforcer that also contains the 0.1%-6% that accounts for the coating gross weight, said hardness reinforcer are aluminum oxide powder, one or more in ultrafine silica powder, silica powder, ceramics powder, silicate powder, polymethylmethacrylate powder, the cured powder.
The auxiliary agent that also contains the 0.1%-5% that accounts for the coating gross weight, said auxiliary agent comprises one or more in flow agent, anti-settling agent, the wetting dispersing agent.
The second-order transition temperature of said thermoplastic acrylic resin is not less than 60 degree.
Said solvent is selected from one or more in toluene, ETHYLE ACETATE, butyl ester, propyl carbinol, cyclohexanone, YLENE, the acetone.
Comprise following components in weight percentage: the content of thermoplastic acrylic resin is 60-70%, and the content of auxiliary film forming matter vinyl chloride-vinyl acetate resin is 0.1%-5%, and the content of pigment is 2.5-18%, and surplus is a solvent.
The invention has the beneficial effects as follows:, thereby significantly improved the sticking power between sticking power, prime coat and the top coat layer between the prime coat because the present invention adopts the thermoplastic acrylic resin of high glass transition temperature and the auxiliary film forming matter vinyl chloride-vinyl acetate resin of promoting as sticking power.Add when also containing isocyanic ester or hardness reinforcer; Perhaps simultaneously or to adopt second-order transition temperature (TG) separately be that the above high glass transition temperature thermoplastic acrylic resin of 60 degree is during as matrix resin; Can also improve the hardness of prime coat; Can not influence simultaneously color and luster and the brightness of using silver color priming paint, and improve workability.The surface that coating of the present invention can be coated on various products forms prime coat, and the surface that particularly is coated in plastic prod forms prime coat.
Embodiment
Below in conjunction with embodiment the present invention is done further explain:
Primer base of the present invention comprises thermoplastic acrylic resin, pigment and solvent, and said primer base also contains and accounts for coating gross weight 0.1%-5% auxiliary film forming matter vinyl chloride-vinyl acetate resin.
The hardness reinforcer that also contains the 0.1%-6% that accounts for the coating gross weight, said hardness reinforcer are aluminum oxide powder, one or more in ultrafine silica powder, silica powder, ceramics powder, silicate powder, polymethylmethacrylate powder, the cured powder.
The auxiliary agent that also contains the 0.1%-5% that accounts for the coating gross weight, said auxiliary agent comprises one or more in flow agent, anti-settling agent, the wetting dispersing agent.
The second-order transition temperature of said thermoplastic acrylic resin is not less than 60 degree.
Said solvent is selected from one or more in toluene, ETHYLE ACETATE, butyl ester, propyl carbinol, cyclohexanone, YLENE, the acetone.
Comprise following components in weight percentage: the content of thermoplastic acrylic resin is 60-70%, and the content of auxiliary film forming matter vinyl chloride-vinyl acetate resin is 0.1%-5%, and the content of pigment is 2.5-18%, and surplus is a solvent.
According to multilayer primer base provided by the invention, be benchmark with the weight total amount of coating, the content of said thermoplastic acrylic resin is 60-70%, the content of pigment is 2.5-18%.
According to the present invention, can adopt various known thermoplastic acrylic resins as matrix resin.Under the preferable case, adopt vitrified temperature (TG) to be not less than 60 degree, the high glass transition temperature thermoplastic acrylic resin of preferred 60 degree is as matrix resin.
Said solvent types is conventionally known to one of skill in the art.For example, said solvent can be selected from one or more in toluene, ETHYLE ACETATE, butyl ester, propyl carbinol, cyclohexanone, YLENE, the acetone.
Coating of the present invention can also and preferably contain auxiliary agent, and said auxiliary agent comprises one or more in flow agent, anti-settling agent, the wetting dispersing agent.The content of the auxiliary agent that is added is the 0.1%-5% of coating composition gross weight, and the kind of these auxiliary agents has been conventionally known to one of skill in the art with effect.
Said flow agent can select for use EFKA3772, EFKA3777 or BYK141 one or more.Wherein EFKA series is Dutch Ai Fuka Company products, and BYK series is the BYK Company products, and the above trade mark is conventionally known to one of skill in the art.The effect of said anti-settling agent in coating composition is to form powerful network structure; Make system have excellent thixotropic property; The sedimentation and knot lump of the color stuffing in the coating can be effectively prevented, the modest 201P of Taiwan moral, 229 can be selected for use, the DS6500/6800-20X of U.S. TAVY, DS5000-10X; The 6900-20X that the Japan nanmu originally changes into, 4200-10 etc., the above trade mark is conventionally known to one of skill in the art.Said wetting dispersing agent is to have concurrently wetting and auxiliary agent dissemination; Be meant any material that can improve the dispersion state of said aluminium-silver slurry in said resin solution, like the unsaturated polyprotonic acid polymkeric substance of lower molecular weight, polymer poly-unsaturated acid; Complicated ammonia verivate; Electroneutral polyamide salt, modified high-molecular propenoate, Yelkin TTS etc.Specifically can select Kerper-602, Kerper-605, Kerper-630, CFC-500HP, CFC-510, CFC-637, one or more among the CFC-640S for use.Wherein Kerper series is U.S. Kerper Company products, and CFC series is French CFC Company products.The above trade mark is conventionally known to one of skill in the art.
The preparation method of primer base of the present invention; Comprise: thermoplastic acrylic resin and solvent is even, add pigment then, stir; Wherein, This method also is included in and adds auxiliary film forming vinyl chloride-vinyl acetate resin in the mixture of said thermoplastic acrylic resin and solvent and mix, and carries out grinding in the horizontal sand mill, and fineness is below 15u.
In the preparing method's of the coating of the present invention optimal way; This method also comprises in the mixture of said auxiliary film forming matter, thermoplastic acrylic resin and solvent, adding hardness reinforcer and mixing; The add-on of said hardness reinforcer makes in the coating composition that obtains and contains; Gross weight with coating composition is a benchmark; The hardness reinforcer of 0.1-6%, said hardness reinforcer is selected from aluminum oxide powder, one or more in ultrafine silica powder, silica powder, ceramics powder, silicate powder, polymethylmethacrylate powder, the cured powder.
The mixed diluent that primer base that aforesaid method obtains and thinner are pre-mixed is sprayed at the surface of product by the dilution proportion of 1:1, on PPC (polyphenyl) or PE plastic plate surface, under the 40-80 degree, solidifies 5-30 minute or air dry.Repeat spraying and oven dry, can obtain thick is the prime coat of 5-15 centimetre multilayer priming paint.On prime coat, spray PU colored paint or other nitro self-drying paints again, last the 3rd road enamelled coating limit spray PU gloss oil Lacquer finish.
Following embodiment explains primer base provided by the invention and preparation method thereof:
Embodiment 1
Thermoplastic acrylic resin (model: 7416, second-order transition temperature 60 degree, the modest Company products of moral) 60 grams
Vinyl chloride-vinyl acetate resin (model: MP-36, BSK company) 5 grams
Pigment R-930 white titanium pigment (du pont company product) 18 grams
Flow agent (EFKA-3777) 0.5 gram
Dispersion agent (BYK company 141) 0.2 gram
Anti-settling agent (the modest company of 202P moral) 4 grams
YLENE 4.3 grams
Toluene 4 grams
Cyclohexanone 4 grams
After more than mixing, carry out mesh-of-grind to 15U.
Diluent formulation
Construction requirement:
1, working viscosity: just can be painted on PP or PE substrate surface with the paint viscosity that paint 1:1 proportioning obtains at 12-15 second (being coated with-4 glasss of measurements) with above thinner, just can obtain the good paint film layer of sticking power hardness.
2, sticking power test: with drawing the grid square that the lattice device is drawn 100 1*1 microns at coatingsurface, the model of using U.S. 3m company to produce is 600 smooth the sticking on the grid of scotch tape, does not stay a space; Vertically uncover with the fastest speed then; Observation cut edge has or not depainting such as depainting amount between 0-5%, to be 5B, is 4B between 5-10%, is 3B between 10-20%; Being B between 30-50%, is being 0B more than 50%.
3, measurement of hardness: basic skills is the Chinese pencil delineation enamelled coating with certain degree of hardness, and the weight of range estimation paint film cut is represented hardness of paint film.Surperficial like certain with H pencil 1000 gram force cuts, and cut is arranged with 2H pencil 1000 gram forces, then certain surface hardness is 1H, measured hardness is pressed 3B-2B-B-F-H-2H-3H, rises progressively successively.
Embodiment 2
Thermoplastic acrylic resin (model: 7416, second-order transition temperature 60 degree, the modest Company products of moral) 68 grams
Vinyl chloride-vinyl acetate resin (model: MP-36, BSK company) 4 grams
Pigment carbon black (M-80) 2.5 grams
Flow agent (EFKA-3777) 0.5 gram
Dispersion agent (BYK company 141) 0.2 gram
YLENE 12 grams
Propyl carbinol 6
Cyclohexanone 6.8
After more than mixing, carry out mesh-of-grind to 15U
Diluent formulation
Embodiment 3
Thermoplastic acrylic resin (model: 7416, second-order transition temperature 60 degree, the modest Company products of moral) 70 grams
Vinyl chloride-vinyl acetate resin (model: MP-36, BSK company) 3 grams
Pigment WJ-1200 (aluminium powder) 6 grams
Hardness reinforcer (2120 cured powder, the modest company of moral) 2.3 grams
Flow agent (EFKA-3772) 0.5 gram
Dispersion agent (BYK company 331) 0.2 gram
Anti-settling agent (the modest company of 201P moral) 4 grams
YLENE 4
Butyl ester 6
Cyclohexanone 4
After more than mixing, carry out mesh-of-grind to 15U
Diluent formulation
The advantage that the present invention gives prominence to has good adhesive (reaching more than the 4B) and good recoatability exactly on PP or PE surface, because of hardness of paint film is not too high (HB), make paint film that good flexible arranged.
Above-described embodiment only is used to explain technological thought of the present invention and characteristics; Its purpose is to make those skilled in the art can understand content of the present invention and implements according to this; Can not only limit claim of the present invention with present embodiment; Be equal variation or the modification that all disclosed spirit is done, still drop in the claim of the present invention.
Claims (6)
1. a primer base comprises thermoplastic acrylic resin, pigment and solvent, it is characterized in that, said primer base also contains and accounts for coating gross weight 0.1%-5% auxiliary film forming matter vinyl chloride-vinyl acetate resin.
2. primer base according to claim 1; It is characterized in that; The hardness reinforcer that also contains the 0.1%-6% that accounts for the coating gross weight; Said hardness reinforcer is an aluminum oxide powder, one or more in ultrafine silica powder, silica powder, ceramics powder, silicate powder, polymethylmethacrylate powder, the cured powder.
3. primer base according to claim 1 and 2 is characterized in that, also contains the auxiliary agent of the 0.1%-5% that accounts for the coating gross weight, and said auxiliary agent comprises one or more in flow agent, anti-settling agent, the wetting dispersing agent.
4. primer base according to claim 1 is characterized in that, the second-order transition temperature of said thermoplastic acrylic resin is not less than 60 degree.
5. primer base according to claim 1 is characterized in that said solvent is selected from one or more in toluene, ETHYLE ACETATE, butyl ester, propyl carbinol, cyclohexanone, YLENE, the acetone.
6. primer base according to claim 1; It is characterized in that, comprise following components in weight percentage: the content of thermoplastic acrylic resin is 60-70%, and the content of auxiliary film forming matter vinyl chloride-vinyl acetate resin is 0.1%-5%; The content of pigment is 2.5-18%, and surplus is a solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103313418A CN102796430A (en) | 2012-09-07 | 2012-09-07 | Primer paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103313418A CN102796430A (en) | 2012-09-07 | 2012-09-07 | Primer paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102796430A true CN102796430A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103313418A Pending CN102796430A (en) | 2012-09-07 | 2012-09-07 | Primer paint |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387778A (en) * | 2013-07-05 | 2013-11-13 | 丹阳市佳美化工有限公司 | Plastic surface varnish priming paint |
| CN104926985A (en) * | 2015-06-01 | 2015-09-23 | 南通拜森化工有限公司 | Phosphate-acrylic resin for silver paint and preparation method thereof |
| CN106046993A (en) * | 2016-08-04 | 2016-10-26 | 佛山市三水泓源涂料有限公司 | Method for preparing sea water corrosion-resistant plastic paint |
| CN106221454A (en) * | 2016-08-29 | 2016-12-14 | 广东花王涂料有限公司 | A kind of one-component thermoplastic acrylic seal coat |
| CN106280788A (en) * | 2016-08-04 | 2017-01-04 | 佛山市三水泓源涂料有限公司 | A kind of plastic coating of seawater corrosion resistance |
| CN106280805A (en) * | 2016-08-29 | 2017-01-04 | 广东花王涂料有限公司 | A kind of preparation technology primed in one-component thermoplastic acrylic |
| CN106336752A (en) * | 2016-08-29 | 2017-01-18 | 广东花王涂料有限公司 | Monocomponent thermoplastic acrylic surfacer |
| CN106675361A (en) * | 2016-11-15 | 2017-05-17 | 惠州市长润发涂料有限公司 | High-performance anti-ultraviolet odor-removing open PU primer |
| CN109321053A (en) * | 2018-09-14 | 2019-02-12 | 清远永昌涂料有限公司 | Car paint and preparation method thereof is applied in a kind of blade coating type based on thermoplastic acrylic resin |
| CN109401572A (en) * | 2018-11-13 | 2019-03-01 | 安徽桑瑞斯环保新材料有限公司 | A kind of concrete mixing tank car weather-resistant powder paint |
| CN110240835A (en) * | 2019-05-21 | 2019-09-17 | 中华制漆(新丰）有限公司 | Transition paint base composition |
| CN116376373A (en) * | 2023-03-30 | 2023-07-04 | 濮阳展辰新材料有限公司 | High-adhesion nitro white primer and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153155A (en) * | 2006-09-28 | 2008-04-02 | 比亚迪股份有限公司 | Priming coating composition and preparation method thereof |
| CN101210130A (en) * | 2006-12-29 | 2008-07-02 | 佛山市顺德区汉达精密电子科技有限公司 | Aluminum powder paint |
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2012
- 2012-09-07 CN CN2012103313418A patent/CN102796430A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153155A (en) * | 2006-09-28 | 2008-04-02 | 比亚迪股份有限公司 | Priming coating composition and preparation method thereof |
| CN101210130A (en) * | 2006-12-29 | 2008-07-02 | 佛山市顺德区汉达精密电子科技有限公司 | Aluminum powder paint |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103387778A (en) * | 2013-07-05 | 2013-11-13 | 丹阳市佳美化工有限公司 | Plastic surface varnish priming paint |
| CN104926985A (en) * | 2015-06-01 | 2015-09-23 | 南通拜森化工有限公司 | Phosphate-acrylic resin for silver paint and preparation method thereof |
| CN106046993A (en) * | 2016-08-04 | 2016-10-26 | 佛山市三水泓源涂料有限公司 | Method for preparing sea water corrosion-resistant plastic paint |
| CN106046993B (en) * | 2016-08-04 | 2019-10-25 | 佛山市三水泓源涂料有限公司 | A method of preparing the plastic coating of seawater corrosion resistance |
| CN106280788A (en) * | 2016-08-04 | 2017-01-04 | 佛山市三水泓源涂料有限公司 | A kind of plastic coating of seawater corrosion resistance |
| CN106280788B (en) * | 2016-08-04 | 2019-05-10 | 佛山市三水泓源涂料有限公司 | A kind of plastic coating of seawater corrosion resistance |
| CN106336752A (en) * | 2016-08-29 | 2017-01-18 | 广东花王涂料有限公司 | Monocomponent thermoplastic acrylic surfacer |
| CN106280805A (en) * | 2016-08-29 | 2017-01-04 | 广东花王涂料有限公司 | A kind of preparation technology primed in one-component thermoplastic acrylic |
| CN106221454A (en) * | 2016-08-29 | 2016-12-14 | 广东花王涂料有限公司 | A kind of one-component thermoplastic acrylic seal coat |
| CN106675361A (en) * | 2016-11-15 | 2017-05-17 | 惠州市长润发涂料有限公司 | High-performance anti-ultraviolet odor-removing open PU primer |
| CN109321053A (en) * | 2018-09-14 | 2019-02-12 | 清远永昌涂料有限公司 | Car paint and preparation method thereof is applied in a kind of blade coating type based on thermoplastic acrylic resin |
| CN109401572A (en) * | 2018-11-13 | 2019-03-01 | 安徽桑瑞斯环保新材料有限公司 | A kind of concrete mixing tank car weather-resistant powder paint |
| CN110240835A (en) * | 2019-05-21 | 2019-09-17 | 中华制漆(新丰）有限公司 | Transition paint base composition |
| CN116376373A (en) * | 2023-03-30 | 2023-07-04 | 濮阳展辰新材料有限公司 | High-adhesion nitro white primer and preparation method and application thereof |
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Application publication date: 20121128 |