CN103031029A - Low-temperature curing self-crosslinking aminoacrylic acid paint and preparation method thereof - Google Patents
Low-temperature curing self-crosslinking aminoacrylic acid paint and preparation method thereof Download PDFInfo
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- CN103031029A CN103031029A CN2012105909825A CN201210590982A CN103031029A CN 103031029 A CN103031029 A CN 103031029A CN 2012105909825 A CN2012105909825 A CN 2012105909825A CN 201210590982 A CN201210590982 A CN 201210590982A CN 103031029 A CN103031029 A CN 103031029A
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Abstract
The invention relates to aminoacrylic acid paint which consists of a mixture A and a mixture B, wherein the weight ratio of the mixture A to the mixture B is 10:1; the mixture A comprises the following components in parts by weight: 55-68 parts of acrylic resin, 18-25 parts of methylated phenylate amino resin, 0-20 parts of semi-finished pigment paste, 1-2 parts of adhesion promoter, 0.1-0.3 part of acrylate leveling agent and 4 parts of isobutyl alcohol; and the mixture B comprises the following components in parts by weight: 20 parts of cooling agent, 2 parts of stabilizer, 56 parts of ethyl acetate, 20 parts of isobutyl alcohol and 2 parts of conductive agent. Compared with the prior art, the paint has the following advantages and effects: according to the paint, the cooling agent and the stabilizer are introduced through a formulation design, the production process is optimized, the drying temperature of the paint is reduced to 70-80 DEG C, the drying time is shortened to 30min, an application scope of the traditional aminoacrylic acid paint is expanded, the paint can be applied to a plastic base material, the energy cost for a client is lowered, energy saving and emission reduction are facilitated, and the paint is a low carbon economy technology.
Description
Technical field
The present invention relates to a kind of aminoacrylic acid coating, particularly a kind of low-temperature curing self-crosslinking aminoacrylic acid coating also relates to a kind of preparation method of low-temperature curing self-crosslinking aminoacrylic acid coating.
Background technology
Existing aminoacrylic acid paint solidification temperature is generally at 120-150 ℃, and set time is about 30min.Existing aminoacrylic acid coating generally is used on the metal substrate.But plastic rubber substrate can't be used, because more than 80 ℃ thermal distortion will occur the plastic rubber substrate (common such as PVC, ABS).The traditional coating that is applied on the plastic rubber substrate has lacquer primer (or thermoplastic acrylic priming paint)+polyurethane lacquer; because the physical chemistry such as the weathering resistance of lacquer primer, thermoplastic acrylic priming paint, gloss can be poor; therefore cover one deck polyurethane lacquer protecting, but the polyurethane lacquer cost is high.
Be the Chinese patent of CN 1508203A such as application publication number, disclose a kind of thermosetting acrylic coating in its specification sheets.This coating comprises thermosetting acrylic resin 50-60 part, butoxy aminoresin 15-20 part, pigment 5-28 part, solvent 5-10 part, flow agent 0.2-0.4 part, defoamer 0.2-0.4, adhesion promoter 0-3 part, Ricinate 0-4 part.Although its bake out temperature is lower, can be applicable to aluminium sheet, its bake out temperature is difficult to be lower than 80 ℃, so that it is difficult to using for plastic rubber substrate (common such as PVC, ABS).
Summary of the invention
The object of the invention is to overcome above shortcomings in the prior art, and provide a kind of bake out temperature low, the physical chemistry such as weathering resistance, gloss can be good, can prevent static, can be at the low-temperature curing self-crosslinking aminoacrylic acid coating of plastic rubber substrate use.The present invention also provides a kind of preparation method of this low-temperature curing self-crosslinking aminoacrylic acid coating.
The present invention addresses the above problem the technical scheme that adopts: this low-temperature curing self-crosslinking aminoacrylic acid coating, and its special character is: be comprised of mixture first and mixture second, the weight ratio of described mixture first and mixture second is 10:1;
Described mixture first comprises the component of following weight part: acrylic resin 55-68 part, methyl-etherified benzene is for aminoresin 18-25 part, work in-process pigment slurry 0-20 part, adhesion promoter 1-2 part, acrylate flow agent 0.1-0.3 part, 4 parts of isopropylcarbinols;
Described mixture second is comprised of the component of following weight part: 20 parts of cooling agents, 2 parts of stablizers, 56 parts of ethyl acetate, 20 parts of isopropylcarbinols, 2 parts of conductive agents.
Cooling agent of the present invention is the low extremely long carbochain alkanisation sulfonic acid cooling catalyzer of encapsulation type.
Stablizer of the present invention is the alkylammonium salt paint stablizer of polymeric acidic polymkeric substance.
The preparation method of low-temperature curing self-crosslinking aminoacrylic acid coating of the present invention, its special character is may further comprise the steps:
1) the mixture first is dropped in the stirring tank, more than the abundant dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in the described stirring tank, and stir;
3) mix colours.
The present invention compared with prior art, have the following advantages and effect: the present invention introduces cooling agent and stablizer by formulating of recipe, and optimized production process, the bake out temperature of coating is down to 70-80 ℃, and drying time shortens to 30min, has both expanded traditional aminoacrylic acid Application of coatings scope, make it both can be applicable to plastic rubber substrate, for the client has reduced energy cost, also promoting energy-saving and emission-reduction again, is a kind of low-carbon economy technology.
Add conductive agent among the present invention and can reduce resistance of coating to improve the adsorption effect of coating on the electrostatic spraying streamline, reduce the coating loss.
Cooling agent contains sulfonic group, and molecular polarity is large, and stablizer also is a kind of high molecular, high polar compound, owing to there being the dipole-dipole force that attracts each other between polar molecule and the polar molecule, stablizer and cooling agent mutually combine because of the effect of dipole-dipole force.All be macromolecular compound because of stablizer and cooling agent again, both in conjunction with after, intermolecular sterically hindered larger, the (-NCH of aminoresin functional group
2O-R) with acrylic resin functional group (-COOH) difficult with touch cooling agent, cause the cooling agent can't the catalytic amino resin and the reaction of acrylic resin, but when being warmed up to more than 70 ℃, cooling agent and stablizer in conjunction with destroyed, then cooling agent just begins the crosslinking reaction of catalytic amino resin and acrylic resin.If not design stability agent among the present invention just the cooling agent in the coating can directly begin the cross-linking and curing reaction of catalytic amino resin and acrylic resin, although the rate of catalysis reaction under the normal temperature is lower, is unfavorable for the long storage of coating products eventually.
Embodiment
The present invention is described in further detail below by embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1.
In the present embodiment, low-temperature curing self-crosslinking aminoacrylic acid coating is comprised of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
The mixture first comprises the component of following weight part: 55 parts of acrylic resins, methyl-etherified benzene be for 18 parts in aminoresin, 1 part of adhesion promoter, 0.1 part of acrylate flow agent, 4 parts of isopropylcarbinols.
In the present embodiment, the acid number 〉=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content of aminoresin 〉=70%(weight).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is comprised of the component of following weight part: 20 parts of cooling agents, 2 parts of the alkylammonium salt paint stablizers of polymeric acidic polymkeric substance, 56 parts of ethyl acetate, 20 parts of isopropylcarbinols, 2 parts of conductive agents.
In the present embodiment, conductive agent uses conductive agent to be the modest EA-87 of moral.
In the present embodiment, the work in-process pigment slurry is 0 part, does not namely add the work in-process pigment slurry, and the coating of making is varnish.
In the present embodiment, cooling agent is long carbochain alkanisation sulfonic acid cooling catalyzer, and it is the encapsulation type cooling agent.
In the present embodiment, stablizer is alkylammonium salt paint stablizer, and it is the polymeric acidic polymkeric substance.
Its preparation methods steps is as follows:
1) the mixture first is dropped in the stirring tank, more than the abundant dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in the stirring tank, and stir mixture first and mixture second are mixed.
Because what make when above-mentioned work in-process pigment slurry consumption is 0 is varnish, need not to transfer color directly to carry out the detection of performance index after dispersed with stirring is even, detect and filter and package after qualified.In the present embodiment, work in-process pigment also can replace with pigment, and the effect of work in-process pigment is for adjustable colors.
Embodiment 2.
In the present embodiment, low-temperature curing self-crosslinking aminoacrylic acid coating is comprised of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
The mixture first comprises the component of following weight part: 68 parts of acrylic resins, methyl-etherified benzene be for 25 parts in aminoresin, 20 parts of work in-process pigment slurrys, 2 parts of adhesion promoters, 0.3 part of acrylate flow agent, 4 parts of isopropylcarbinols.
In the present embodiment, the acid number 〉=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content of aminoresin 〉=70%(weight).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is comprised of the component of following weight part: 20 parts of the low extremely long carbochain alkanisation sulfonic acid cooling catalyzer of encapsulation type, 2 parts of the alkylammonium salt paint stablizers of polymeric acidic polymkeric substance, 56 parts of ethyl acetate, 20 parts of isopropylcarbinols, 2 parts of conductive agents.
In the present embodiment, conductive agent uses conductive agent to be the modest EA-87 of moral.
Its preparation methods steps is as follows:
1) the mixture first is dropped in the stirring tank, more than the abundant dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in the stirring tank, and stir;
3) mix colours.
Carry out again the check of performance index after color mixes up, detect and filter and package after qualified.
Embodiment 3.
In the present embodiment, low-temperature curing self-crosslinking aminoacrylic acid coating is comprised of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
The mixture first comprises the component of following weight part: 60 parts of acrylic resins, methyl-etherified benzene be for 21 parts in aminoresin, 10 parts of work in-process pigment slurrys, 1.5 parts of adhesion promoters, 0.2 part of acrylate flow agent, 4 parts of isopropylcarbinols.
In the present embodiment, the acid number 〉=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content of aminoresin 〉=70%(weight).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is comprised of the component of following weight part: 20 parts of the low extremely long carbochain alkanisation sulfonic acid cooling catalyzer of encapsulation type, 2 parts of the alkylammonium salt paint stablizers of polymeric acidic polymkeric substance, 56 parts of ethyl acetate, 20 parts of isopropylcarbinols, 2 parts of conductive agents.
In the present embodiment, conductive agent uses conductive agent to be the modest EA-87 of moral.
Its preparation methods steps is as follows:
1) the mixture first is dropped in the stirring tank, more than the abundant dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in the stirring tank, and stir;
3) mix colours.
Carry out again the check of performance index after color mixes up, detect and filter and package after qualified.
Above content described in this specification sheets only is made for the present invention illustrating.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment; only otherwise depart from the content of specification sheets of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (4)
1. low-temperature curing self-crosslinking aminoacrylic acid coating, it is characterized in that: be comprised of mixture first and mixture second, the weight ratio of described mixture first and mixture second is 10:1;
Described mixture first comprises the component of following weight part: acrylic resin 55-68 part, methyl-etherified benzene is for aminoresin 18-25 part, work in-process pigment slurry 0-20 part, adhesion promoter 1-2 part, acrylate flow agent 0.1-0.3 part, 4 parts of isopropylcarbinols;
Described mixture second is comprised of the component of following weight part: 20 parts of cooling agents, 2 parts of stablizers, 56 parts of ethyl acetate, 20 parts of isopropylcarbinols, 2 parts of conductive agents.
2. low-temperature curing self-crosslinking aminoacrylic acid coating according to claim 1 is characterized in that: described cooling agent is the low extremely long carbochain alkanisation sulfonic acid cooling catalyzer of encapsulation type.
3. low-temperature curing self-crosslinking aminoacrylic acid coating according to claim 1 is characterized in that: described stablizer is the alkylammonium salt paint stablizer of polymeric acidic polymkeric substance.
4. the preparation method of a low-temperature curing self-crosslinking aminoacrylic acid coating claimed in claim 1 is characterized in that may further comprise the steps:
1) the mixture first is dropped in the stirring tank, more than the abundant dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in the described stirring tank, and stir;
3) mix colours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210590982.5A CN103031029B (en) | 2012-12-31 | 2012-12-31 | Low-temperature curing self-crosslinking aminoacrylic acid paint and preparation method thereof |
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| CN201210590982.5A CN103031029B (en) | 2012-12-31 | 2012-12-31 | Low-temperature curing self-crosslinking aminoacrylic acid paint and preparation method thereof |
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| CN103031029B CN103031029B (en) | 2015-05-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104768A (en) * | 2007-04-06 | 2008-01-16 | 刘成金 | Highlight water-based automobile paint |
| JP2011224975A (en) * | 2010-03-30 | 2011-11-10 | Nippon Steel & Sumikin Stainless Steel Corp | Clear-coated stainless steel sheet with excellent pressure mark resistance and scratch resistance |
| CN102676007A (en) * | 2012-05-31 | 2012-09-19 | 吴江市海新特种涂料厂 | Nano hollow heat-dissipating carbon coating and manufacturing method thereof |
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- 2012-12-31 CN CN201210590982.5A patent/CN103031029B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104768A (en) * | 2007-04-06 | 2008-01-16 | 刘成金 | Highlight water-based automobile paint |
| JP2011224975A (en) * | 2010-03-30 | 2011-11-10 | Nippon Steel & Sumikin Stainless Steel Corp | Clear-coated stainless steel sheet with excellent pressure mark resistance and scratch resistance |
| CN102676007A (en) * | 2012-05-31 | 2012-09-19 | 吴江市海新特种涂料厂 | Nano hollow heat-dissipating carbon coating and manufacturing method thereof |
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Address after: No. 226, Jingcheng Road, hengcun Town, Tonglu County, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Liwei Chemical Coatings Co.,Ltd. Address before: No.19, xujiabu community, Chengdong village, hengcun Town, Tonglu County, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU LIWEI CHEMICAL INDUSTRIAL PAINT Co.,Ltd. |
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