CN1569991A - High solid content, low viscosity priming paint for car repair - Google Patents
High solid content, low viscosity priming paint for car repair Download PDFInfo
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- CN1569991A CN1569991A CN 03132930 CN03132930A CN1569991A CN 1569991 A CN1569991 A CN 1569991A CN 03132930 CN03132930 CN 03132930 CN 03132930 A CN03132930 A CN 03132930A CN 1569991 A CN1569991 A CN 1569991A
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- priming paint
- car repair
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Abstract
The invention discloses a priming paint for mending automobiles, which is prepared by mixing component A and B by the mass ratio of 3:1, and agitating homogeneously, wherein the component A comprises modified epoxy resin, moistening and dispersing agent, foaming agent, thixotropic agent, phosphor zinc white, precipitated barite, talcum powder, carbon black, titanium dioxide, iron oxide yellow, cyclohexanone, dimethylbenzene, normal butyl alcohol, and levelling agent, the component B comprises epoxy curing agent, methyl isobutyl ketone, dimethylbenzene and butyl alcohol.
Description
Technical field the present invention relates to a kind of car repair priming paint.
Background technology is along with China reform and opening-up gos deep into, and the automobile occupation rate improves greatly per capita, and the maintenance of automobile and maintenance have expedited the emergence of a new industry--and-car repair industry is used for the retouching paint of repairing car domestic every year at present up to 130,000 tons.Car refinishing paint coats with lacquer with former factory and compares, and quality requirements is higher, and its sticking power, gloss, fullness ratio and weather resisteant, weather resistance etc. become the fundamental factor of weighing car refinishing paint.
In each coating of car repair, car repair priming paint is one of crucial coating that influences final compound coating appearance of film of car repair and various mechanical propertys, and is as follows to its performance requriements:
1. this priming paint can solidify under low temperature or normal temperature condition, can solidify under 80 ℃ of temperature, and require and can solidify within a short period of time, in the general requirement 1h.
2. have good sticking power, this coating directly determines the sticking power of whole compound coating.
3. have good filling property, the coating that polishes off can be filled, make whole compound coating have good fullness.
4. has good smoothness.The smoothness of this coating will directly influence the levelling property and the gloss of finishing coat.
5. has good grinability.Because of construction environment etc., there is surface imperfection easily in the priming paint dry film, needs to adopt sand papering, requires the glutinous sand paper of priming paint dry film, is polished smooth easily.
6. have matching capacity preferably, can resist the solvent of middle layer and finish paint, unlikely causing stings at the end.And ply adhesion is preferably arranged with last finishing coat.
Chipping primer is general equal on the market now can satisfy above requirement.But, because the base-material of chipping primer employing at present is the pure acid resin of air-drying property, vinylformic acid, amino, silicane, ammonia ester oil, Nitrocellulose, two component polyurethane etc. normally, its molecular weight is all bigger, its resin viscosity is higher, cause the viscosity of made priming paint higher, solids content is lower, is about 40%.Solid content is lower under its working viscosity, is approximately about 20%, and viscosity height, the priming paint that solid content is low can cause following shortcoming when construction:
1. in the car repair process, reach certain build, need repeatedly spray, increase the manual work time.And when the spraying wet-film thickness is higher, be easy to generate construction disadvantages such as sagging, influence paint film appearance.
2. because paint viscosity is higher, need reduce viscosity during spraying, adopt a large amount of solvents to dilute, in the process of construction, cause the large amount of organic discharging, environmental pollution is serious.
Defectives such as problem that exists in spraying in view of present car repair priming paint and contaminate environment, the coating of low-viscosity, high solids content will become the demand direction in market.
Summary of the invention the invention discloses a kind of high low-viscosity car repair priming paint that contains admittedly, it adopts low-molecular-weight Resins, epoxy as a kind of component base-material, adopt special efficient wetting dispersing agent to carry out wetting, adopt lower barium sulfate of oil number and zinc phosphate as pigment extender, guaranteed that it still has lower viscosity under the situation of high pigment content; The coating of this priming paint not only has good sticking power, matching capacity, smoothness, and its viscosity is lower, and solid content is higher.Easily produce disadvantages such as sagging when well having overcome the spraying of traditional priming paint, and organic discharging significantly reduces in the construction process, environmental pollution is less.
Chipping primer of the present invention is made up of two kinds of components of A, B, and wherein A component moiety is as follows:
25-35% low-viscosity modified epoxy HY06-X 75
The 0.2-0.8% wetting dispersing agent
The 0.2-0.8% defoamer
The 0.2-0.8% thixotropic agent
The anticorrosion pigment extender phosphorus zinc white of 5-15%
The anticorrosion pigment extender process white of 10-20%
5-12% pigment extender micronized talc powder 1500 orders
0.03-0.1% tinting pigment carbon black SP 100
15-25% tinting pigment rutile type 2310
The anticorrosion tinting pigment iron oxide yellow 3910 of 0.1-0.4%
The 2-5% pimelinketone
5-10% dimethylbenzene
The 1-5% propyl carbinol
0.2-0.6% flow agent (so per-cent is all weight percent in this specification sheets)
A component preparation process is as follows:
1. in Resins, epoxy, add defoamer, thixotropic agent and wetting agent, it is stirred.
2. under the situation of stirring at low speed, to wherein adding various tinting pigments and pigment extender successively, that it is pre-dispersed evenly.
3. the employing sand milling is below the 10 μ m with various pigment grinds to the scraper plate fineness.
4. under low speed dispersive situation,, filter and promptly get the high car repair priming paint A component that contains admittedly to wherein adding solvent and levelling slip(ping)agent.
B component moiety is as follows:
20-30% epoxy hardener HG22-X 75
The 30-40% methyl iso-butyl ketone (MIBK)
10-20% dimethylbenzene
The 20-30% propyl carbinol
During preparation B component epoxy hardener is dissolved in the above all kinds of SOLVENTS, stirring gets final product.
When using this priming paint to spray, A, B two components are pressed mass ratio mix at 3: 1, stir, being diluted to spray viscosity can construct.
The wetting dispersing agent that priming paint of the present invention adopted can use the TENLO 70 of COGNIS company, it is brown transparent liquid, it is a kind of oil soluble nonionogenic tenside, the effective wetting dry powder pigment of energy, can make milling time reduce half, prevent that precipitation and loose colour from growing dim, it has good wetting effect to color stuffings such as talcum powder, titanium dioxide, iron oxide yellow, phosphorus zinc white, barium sulfate, thereby can make it that lower viscosity is still arranged under higher pigment content.And for other similar wetting dispersing agents, its consumption has still less reduced raw-material cost to a certain extent.
The flow agent that priming paint of the present invention adopted can use the PERENOL F40 of COGNIS company, it is a colourless transparent liquid, can effectively improve the surface tension of coating, eliminate shrinkage cavity, flake and tangerine peel, improve levelling, dispersion and the anti-ability of growing dim, avoid gas residue in the paint film, reinforcement is wetting to base material.
The thixotropic agent that priming paint of the present invention adopted can use the R.S.M of COGNIS company, and its outward appearance is white fines, can guarantee that coating has very strong thixotropy, improves execution of coating and flowability, also can reduce the precipitation of pigment.Defoamer adopts the PERENOL E8 of COGNIS company, and it is transparent clear liquid, is the solution of modification silicon compound, both can be used for also can be used in the clear lacquer in the opaque paint.
The phosphorus zinc white that priming paint of the present invention adopted is an off-white powder; can be compatible with multiple lacquer base, can hydrolysis generate zinc hydroxide and two generation phosphate ion, these hydrolysates form and adhere to and hinder and lose network and thing; can make metal surface phosphating, be formed on effective especially protective layer in the anode scope.
Compare with traditional priming paint, chipping primer of the present invention has the following advantages:
1. contain height admittedly, fillibility is good, and under working viscosity, solid content only needs spraying several all over just reaching required thickness up to 45%, has shortened the engineering time greatly.
2. viscosity is low, only need add a small amount of solvent and just can reach required spray viscosity, compared with similar products, can reduce by 40% organic solvent emission, and the pollution of environment is alleviated greatly.
3. it is strong to hide sand trace ability, and the sand papering vestige that just steel surface in the car repair process can well be stayed when build is 40 μ m hides.
4. strong covering power, thickness is that 15 μ m just can all hide ground under the black and white lattice plate method.
5. have good levelling property, compound coating is shows good planarization.
6. application property is good, and preparation of construction and method just can obtain coating preferably routinely.But toast just completely solidified of 30min down at 80 ℃.Construction technology window and baking process window that broad is arranged.
7. stability in storage is good, and 50 ℃ of baking ovens store that every index (as fineness, viscosity etc.) does not change substantially after 2 months, does not precipitate, wild effect such as caking.
8. this product also can be used as the priming paint of other ironwares, can improve the sticking power of finish paint, the vestige that the filler metal surface working stays.
In sum, characteristics such as strong adhesion, the matching capacity that car repair priming paint of the present invention not only has traditional priming paint is good, grinability is good, but also have that viscosity is low, solid content is high, advantage such as strong covering power, stability in storage are good, well overcome disadvantages such as producing sagging when traditional priming paint sprays, and organism significantly reduces in the construction process, and environmental pollution is little; Its production technique is simple in addition, realizes easily producing in batches; Therefore, chipping primer of the present invention meets current market demand, and higher utility is arranged.
Embodiment
Embodiment
The A component that recently prepares this priming paint by following percentage:
31.6% low-viscosity modified epoxy HY06-X 75
0.5% wetting dispersing agent TENLO, 70 COGNIS companies
0.4% defoamer PERENOL E8 COGNIS company
0.5% thixotropic agent R.S.M COGNIS company
10.4% anticorrosion pigment extender phosphorus zinc white
15.4% anticorrosion pigment extender process white
8.1% pigment extender micronized talc powder, 1500 orders
0.05% tinting pigment carbon black SP 100
18.9% tinting pigment rutile type 2310
0.2% anticorrosion tinting pigment iron oxide yellow 3910
3.3% pimelinketone
7.55% dimethylbenzene
2.7% propyl carbinol
0.4% flow agent PERENOL F40 COGNIS company
The B component that recently prepares this priming paint by following percentage:
24% epoxy hardener HG22-X 75
36% methyl iso-butyl ketone (MIBK)
15% dimethylbenzene
25% propyl carbinol
A, B two components are pressed mass ratio mixes at 3: 1, stir, be diluted to spray viscosity and promptly make this priming paint, experiment shows, this priming paint solid content height, can reach about 63%, fillibility is good, and under working viscosity, solid content is up to 45%, only need spraying just can reach thickness 90 μ m 2 times, the engineering time reduces about 40%; And viscosity is low, and only need add a small amount of solvent just can reach required spray viscosity, compared with similar products, reduces by 40% organic solvent emission; And its coating has good sticking power, matching capacity, smoothness.
Claims (5)
1. a car repair priming paint is made up of two kinds of components of A, B, and the mass ratio of A, two kinds of components of B is 3: 1, and wherein the moiety of A component is as follows:
25-35% low-viscosity modified epoxy HY06-X75
The 0.2-0.8% wetting dispersing agent
The 0.2-0.8% defoamer
The 0.2-0.8% thixotropic agent
The anticorrosion pigment extender phosphorus zinc white of 5-15%
The anticorrosion pigment extender process white of 10-20%
5-12% pigment extender micronized talc powder
0.03-0.1% tinting pigment carbon black
15-25% tinting pigment rutile type
The anticorrosion tinting pigment iron oxide yellow of 0.1-0.4%
The 2-5% pimelinketone
5-10% dimethylbenzene
The 1-5% solvent, n-butanol
The 0.2-0.6% flow agent
The moiety of B component is as follows:
The 20-30% epoxy hardener
The 30-40% methyl iso-butyl ketone (MIBK)
10-20% dimethylbenzene
The 20-30% propyl carbinol
2. car repair priming paint as claimed in claim 1, wherein wetting dispersing agent can be the TENLO 70 of COGNIS company.
3. car repair priming paint as claimed in claim 1, wherein defoamer can be the PERENOL E8 of COGNIS company.
4. car repair priming paint as claimed in claim 1, wherein thixotropic agent can be the R.S.M of COGNIS company.
5. car repair priming paint as claimed in claim 1, wherein flow agent can be the PERENOL F40 of COGNIS company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132930 CN1569991A (en) | 2003-07-21 | 2003-07-21 | High solid content, low viscosity priming paint for car repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132930 CN1569991A (en) | 2003-07-21 | 2003-07-21 | High solid content, low viscosity priming paint for car repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1569991A true CN1569991A (en) | 2005-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03132930 Pending CN1569991A (en) | 2003-07-21 | 2003-07-21 | High solid content, low viscosity priming paint for car repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1569991A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857738B (en) * | 2009-04-09 | 2012-05-30 | 北京天山新材料技术股份有限公司 | High-concentration inorganic acid resistant anticorrosion coating |
| CN104327699A (en) * | 2014-07-02 | 2015-02-04 | 郑州精益达汽车零部件有限公司 | Grinding-free vehicle refinishing paint and preparation method thereof |
| CN105772374A (en) * | 2015-01-13 | 2016-07-20 | 关西涂料株式会社 | Multilayer coating film forming method |
-
2003
- 2003-07-21 CN CN 03132930 patent/CN1569991A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857738B (en) * | 2009-04-09 | 2012-05-30 | 北京天山新材料技术股份有限公司 | High-concentration inorganic acid resistant anticorrosion coating |
| CN104327699A (en) * | 2014-07-02 | 2015-02-04 | 郑州精益达汽车零部件有限公司 | Grinding-free vehicle refinishing paint and preparation method thereof |
| CN104327699B (en) * | 2014-07-02 | 2016-09-28 | 郑州精益达汽车零部件有限公司 | One is exempted to grind car refinishing paint and preparation method thereof |
| CN105772374A (en) * | 2015-01-13 | 2016-07-20 | 关西涂料株式会社 | Multilayer coating film forming method |
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