CN103031029B - 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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- CN103031029B CN103031029B CN201210590982.5A CN201210590982A CN103031029B CN 103031029 B CN103031029 B CN 103031029B CN 201210590982 A CN201210590982 A CN 201210590982A CN 103031029 B CN103031029 B CN 103031029B
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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 paint, particularly a kind of low-temperature curing self-crosslinking aminoacrylic acid paint, also relate to a kind of preparation method of low-temperature curing self-crosslinking aminoacrylic acid paint.
Background technology
Existing aminoacrylic acid paint solidification value is generally at 120-150 DEG C, and set time is at about 30min.Existing aminoacrylic acid paint is generally used on metal substrate.But plastic rubber substrate cannot be applied, because will thermal distortion be there is plastic rubber substrate (common as PVC, ABS) more than 80 DEG C.The traditional coating be applied on plastic rubber substrate has lacquer primer (or thermoplastic acrylic priming paint)+polyurethane lacquer; because the physical chemistry such as weathering resistance, gloss of lacquer primer, thermoplastic acrylic priming paint can be poor; therefore will cover one deck polyurethane lacquer to protect, but polyurethane lacquer cost is high.
As the Chinese patent that application publication number is CN 1508203A, in its specification sheets, disclose a kind of thermosetting acrylic coating.This coating comprises thermosetting acrylic resin 50-60 part, butoxylated 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 lower than 80 DEG C, makes it be difficult to using for plastic rubber substrate (common as PVC, ABS) is upper.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and provide a kind of bake out temperature low, the physical chemistry such as weathering resistance, gloss can be good, can prevent electrostatic, the low-temperature curing self-crosslinking aminoacrylic acid paint that can use at plastic rubber substrate.Present invention also offers a kind of preparation method of this low-temperature curing self-crosslinking aminoacrylic acid paint.
The present invention's adopted technical scheme that solves the problem is: this low-temperature curing self-crosslinking aminoacrylic acid paint, and its special character is: be made up of mixture first and mixture second, and 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 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, isopropylcarbinol 4 parts;
Described mixture second is made up of the component of following weight part: cooling agent 20 parts, stablizer 2 parts, ethyl acetate 56 parts, isopropylcarbinol 20 parts, conductive agent 2 parts.
Cooling agent of the present invention is encapsulation type low pole Long carbon chain alkanisation sulfonic acid cooling catalyzer.
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 paint of the present invention, its special character is to comprise the following steps:
1) mixture first is dropped in stirring tank, by abundant more than the dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in 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 DEG C, and drying time shortens to 30min, has both extended the range of application of traditional aminoacrylic acid paint, it is made both to can be applicable to plastic rubber substrate, again for client reduces energy cost, also promoting energy-saving and emission-reduction, is a kind of low-carbon economy technology.
Add conductive agent in the present invention and can reduce resistance of coating to improve the adsorption effect of coating on electrostatic spraying streamline, reduce coating loss.
Cooling agent is containing sulfonic group, and molecular polarity is large, and stablizer is also a kind of high molecular, high polar compound, and owing to there is the dipole-dipole force attracted each other between polar molecule and polar molecule, stablizer and cooling agent be combined with each other because of the effect of dipole-dipole force.Again because stablizer and cooling agent are all macromolecular compounds, after both combine, intermolecular space steric hindrance is larger, aminoresin functional group (-NCH
2o-R) with acrylic resin functional group (-COOH) difficult with touch cooling agent, cause cooling agent cannot the reaction of catalytic amino resin and acrylic resin, but when being warmed up to more than 70 DEG C, the combination of cooling agent and stablizer is destroyed, and then cooling agent just starts the crosslinking reaction of catalytic amino resin and acrylic resin.If non-design stability agent in the present invention, the cooling agent in coating just directly can start the cross-linking and curing reaction of catalytic amino resin and acrylic resin, although the rate of catalysis reaction under normal temperature is lower, is eventually unfavorable for the long storage periods of coating products.
Embodiment
Below by embodiment, the present invention is described in further detail, 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 paint is made up of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
Mixture first comprises the component of following weight part: acrylic resin 55 parts, methyl-etherified benzene for 18 parts, aminoresin, adhesion promoter 1 part, acrylate flow agent 0.1 part, isopropylcarbinol 4 parts.
In the present embodiment, the acid number >=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content >=70%(weight of aminoresin).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is made up of the component of following weight part: cooling agent 20 parts, the alkylammonium salt paint stablizer 2 parts of polymeric acidic polymkeric substance, ethyl acetate 56 parts, isopropylcarbinol 20 parts, conductive agent 2 parts.
In the present embodiment, conductive agent uses conductive agent to be the modest EA-87 of moral.
In the present embodiment, work in-process pigment slurry is 0 part, does not namely add work in-process pigment slurry, and the coating made is varnish.
In the present embodiment, cooling agent is Long carbon chain alkanisation sulfonic acid cooling catalyzer, and it is encapsulation type cooling agent.
In the present embodiment, stablizer is alkylammonium salt paint stablizer, and it is polymeric acidic polymkeric substance.
Its preparation methods steps is as follows:
1) mixture first is dropped in stirring tank, by abundant more than the dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in stirring tank, and stir mixture first and mixture second mixed.
Due to obtained when above-mentioned work in-process pigment slurry consumption is 0 be varnish, dispersed with stirring evenly after detection without the need to adjusting color directly to carry out performance index, detect qualified after filter and package.In the present embodiment, work in-process pigment also can replace with pigment, and the effect of work in-process pigment is in order to adjustable colors.
Embodiment 2.
In the present embodiment, low-temperature curing self-crosslinking aminoacrylic acid paint is made up of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
Mixture first comprises the component of following weight part: acrylic resin 68 parts, methyl-etherified benzene for 25 parts, aminoresin, work in-process pigment slurry 20 parts, adhesion promoter 2 parts, acrylate flow agent 0.3 part, isopropylcarbinol 4 parts.
In the present embodiment, the acid number >=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content >=70%(weight of aminoresin).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is made up of the component of following weight part: encapsulation type low pole Long carbon chain alkanisation sulfonic acid cooling catalyzer 20 parts, the alkylammonium salt paint stablizer 2 parts of polymeric acidic polymkeric substance, ethyl acetate 56 parts, isopropylcarbinol 20 parts, conductive agent 2 parts.
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) mixture first is dropped in stirring tank, by abundant more than the dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in stirring tank, and stir;
3) mix colours.
Carry out the inspection of performance index after color mixes up again, detect qualified after filter and package.
Embodiment 3.
In the present embodiment, low-temperature curing self-crosslinking aminoacrylic acid paint is made up of mixture first and mixture second.The weight ratio of mixture first and mixture second is 10:1.
Mixture first comprises the component of following weight part: acrylic resin 60 parts, methyl-etherified benzene for 21 parts, aminoresin, work in-process pigment slurry 10 parts, adhesion promoter 1.5 parts, acrylate flow agent 0.2 part, isopropylcarbinol 4 parts.
In the present embodiment, the acid number >=60mgKOH/g of acrylic resin.
In the present embodiment, methyl-etherified benzene is for the solids content >=70%(weight of aminoresin).
In the present embodiment, adhesion promoter uses the modest ADP of moral.
Mixture second is made up of the component of following weight part: encapsulation type low pole Long carbon chain alkanisation sulfonic acid cooling catalyzer 20 parts, the alkylammonium salt paint stablizer 2 parts of polymeric acidic polymkeric substance, ethyl acetate 56 parts, isopropylcarbinol 20 parts, conductive agent 2 parts.
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) mixture first is dropped in stirring tank, by abundant more than the dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in stirring tank, and stir;
3) mix colours.
Carry out the inspection of performance index after color mixes up again, detect qualified after filter and package.
Above content described in this specification sheets is only made for the present invention illustrating.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to 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, protection scope of the present invention all should be belonged to.
Claims (4)
1. a low-temperature curing self-crosslinking aminoacrylic acid paint, is characterized in that: be made up of mixture first and mixture second, and 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 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, isopropylcarbinol 4 parts;
Described mixture second is made up of the component of following weight part: cooling agent 20 parts, stablizer 2 parts, ethyl acetate 56 parts, isopropylcarbinol 20 parts, conductive agent 2 parts.
2. low-temperature curing self-crosslinking aminoacrylic acid paint according to claim 1, is characterized in that: described cooling agent is encapsulation type low pole Long carbon chain alkanisation sulfonic acid cooling catalyzer.
3. low-temperature curing self-crosslinking aminoacrylic acid paint according to claim 1, is characterized in that: described stablizer is the alkylammonium salt paint stablizer of polymeric acidic polymkeric substance.
4. a preparation method for low-temperature curing self-crosslinking aminoacrylic acid paint according to claim 1, is characterized in that comprising the following steps:
1) mixture first is dropped in stirring tank, by abundant more than the dispersed with stirring 10min of dispersion machine;
2) mixture second is dropped in described stirring tank, and stir;
3) mix colours.
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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 true 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. |