Titanate modified aqueous acrylic resin, and preparation method thereof

A water-based acrylic and titanate technology, applied in the direction of coating, etc., can solve the problems of inability to achieve anti-sinking and anti-sag performance, and achieve the effect of excellent anti-settling and anti-sag performance, simple process, and strong rheological properties

Inactive Publication Date: 2019-06-18
江西省龙海化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a titanate-modified water-based acrylic resin and a preparation method thereof, which solves the problem of conventional water-soluble acrylic amino baking varnish resins containing a large amount of alcohol ether solvent and containing The amino curing agent with a large number of amino groups cannot achieve the technical problem of effective anti-settling and anti-sag performance; the resin introduces titanate, so that the titanate group can form a strong complexation effect between molecules, and itself has In the case of alcohol ether solvents and amino curing agents, it is not affected by alcohol ether solvents and amino curing agents, ensuring excellent anti-settling and anti-sagging performance in water-soluble acrylic amino baking varnishes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This specific embodiment is the formulation of titanate modified waterborne acrylic resin, the resin according to the mass ratio of raw materials includes: isopropoxy dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate 1 part, acrylic 50 parts, 0.1 part dodecyl mercaptan, 5 parts benzoyl peroxide, 50 parts ethanol, 20 parts ammonia water.

[0024] The above formula is processed, and the processing steps are as follows: according to the ratio of raw materials, sequentially add part of the proportion of ethanol and proportion of 1 / 5 of acrylic acid and dodecyl sulfide to the reactor with reflux condenser. Alcohol and isopropoxy dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate, mix and stir uniformly, then heat and stir in a water bath, when the temperature rises to 110 ℃, ethanol appears stable reflux, add Benzoyl peroxide with a proportion of 1 / 4, the reaction is kept for 60 minutes, and then the remaining proportion of acrylic acid and the remaining proporti...

Embodiment 2

[0026] This specific embodiment is a formulation of a titanate modified waterborne acrylic resin, the resin according to the mass ratio of raw materials includes: 2,2-diallyloxymethyl-1-butyl-tris(p-aminophenoxy) 10 parts of titanate, 30 parts of acrylate, 2 parts of mercaptoethanol, 3 parts of benzoyl peroxide, 70 parts of propylene glycol methyl ether, and 10 parts of triethylamine.

[0027] The above formula is processed, and the processing steps are as follows: according to the ratio of raw materials, sequentially add part of the proportion of propylene glycol methyl ether and the proportion of 1 / 4 of acrylate and mercaptoethanol into the reactor with reflux condenser. And 2,2-diallyloxymethyl-1-butyl-tris(p-aminophenoxy) titanate, mix and stir uniformly, then heat and stir in a water bath, when the temperature rises to 100°C, After the stable reflux of propylene glycol methyl ether appears, add 2 / 5 of benzoyl peroxide, keep the reaction for 40 minutes, then add the remaining...

Embodiment 3

[0029] This specific embodiment is the formulation of titanate modified waterborne acrylic resin, the resin according to the mass ratio of raw materials includes: 2,2-diallyloxymethyl-1-butyl-tris(dioctylpyrophosphate (Oxy) titanate 20 parts, methacrylic acid 15 parts, mercaptoethanol 5 parts, azobisisobutyronitrile 0.1 part, ethylene glycol monobutyl ether 100 parts, ethanolamine 1 part.

[0030] To process the above formula, the processing steps are as follows: according to the ratio of raw materials, sequentially add part of the proportion of ethylene glycol monobutyl ether and proportion of 1 / 3 of methyl into the reactor with reflux condenser. Acrylic acid, mercaptoethanol and 2,2-diallyloxymethyl-1-butyl-tris(dioctylpyrophosphate acyloxy) titanate, mix and stir uniformly, then heat and stir in a water bath, when After the temperature rises to 80℃ and the stable reflux of ethylene glycol monobutyl ether appears, add 1 / 2 of the proportion of azobisisobutyronitrile, keep the te...

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Abstract

The invention discloses a titanate modified aqueous acrylic resin, and a preparation method thereof. The preparation method is capable of solving problems in the prior art that a common resin used forwater soluble acrylic amino stoving varnish contains a large amount of an alcohol ether solvent and an amino curing agent containing a large amount of amino, so that effective precipitation prevention and sagging inhibition effects are impossible to achieve. The titanate modified aqueous acrylic resin comprises, by mass, 1 to 20 parts of a titanate coupling agent, 15 to 50 parts of a monomer, 0.1to 5 parts of a molecular weight regulator, 0.1 to 5 parts of an initiator, 50 to 100 parts of a solvent, and 1 to 20 parts of neutralizing agent. According to the preparation method, titanate is introduced, so that strong complexing effect among molecules of the titanate groups is formed, influences by the alcohol ether solvent and the amino curing agent are avoided in existing of the alcohol ether solvent and the amino curing agent, and the excellent precipitation prevention and sagging inhibition effects in water soluble acrylic amino stoving varnish are ensured.

Description

Technical field [0001] The invention relates to the field of resins for water-soluble acrylic amino baking paints, in particular to a titanate modified water-based acrylic resin and a preparation method thereof. Background technique [0002] Acrylic amino baking varnish has good fullness, gloss, hardness, weather resistance, gloss retention, color retention, chemical resistance, etc. Therefore, it is widely used in automobiles, motorcycles, bicycles, hardware, inks and other industries. At present, the domestic acrylic amino baking paint is still based on solvent-based systems, but solvent-based systems have a big problem in environmental protection, that is, the emission of VOCs. This problem has caused great harm to the environment and human health. Therefore, there are corresponding laws and regulations at home and abroad that have made more and more stringent restrictions on VOC emissions. Therefore, the water-based acrylic amino baking paint is an important direction for fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F120/06C08F120/10C08F2/44C09D133/02C09D133/04C09D7/45
Inventor 巴于磊董清龙董洋孔令涛曾祥辉
Owner 江西省龙海化工有限公司
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