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Chlorinated polypropylene modified water-based acrylic resin with excellent water boiling resistance, preparation method thereof, and coating

A technology of chlorinated polypropylene and water-based acrylic acid, used in coatings, primers, etc., can solve problems such as the inability to meet the requirements of water boiling resistance, and achieve the effects of excellent water boiling resistance, good adhesion and simple raw materials

Active Publication Date: 2021-03-09
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the polypropylene water-based coatings on the market cannot meet the performance requirements of water-resistance, and it is an urgent requirement to develop a water-based resin that can meet the water-resistance used in the bumper field.

Method used

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  • Chlorinated polypropylene modified water-based acrylic resin with excellent water boiling resistance, preparation method thereof, and coating
  • Chlorinated polypropylene modified water-based acrylic resin with excellent water boiling resistance, preparation method thereof, and coating

Examples

Experimental program
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Effect test

Embodiment 1

[0049] The chlorinated polypropylene modified water-based acrylic resin with excellent boiling resistance in this embodiment is made from the following raw materials:

[0050] 4.5g acrylic acid, 20g 4-tert-butylcyclohexyl acrylate, 0.2g azobisisobutyronitrile, 0.1g dibenzoyl peroxide, 5g methyl methacrylate, 5.2g butyl acrylate, 5g xylene, 5g propylene glycol Methyl ether, 5g chlorinated polypropylene resin 16-LP, 5g neutralizer N,N-dimethylethanolamine, 45g deionized water.

[0051] The preparation method of the chlorinated polypropylene modified water-based acrylate with excellent boiling resistance in this embodiment comprises the following steps:

[0052] 1) Mix 4.5g of acrylic acid, 20g of 4-tert-butylcyclohexyl acrylate and 0.2g of azobisisobutyronitrile to obtain mixed monomer A; mix 5g of methyl methacrylate, 5.2g of butyl acrylate and 0.1g of Stir and mix the dibenzoyl oxide evenly to obtain the mixed monomer B;

[0053] 2) In a flask equipped with a dropping funnel, ...

Embodiment 2

[0055] The chlorinated polypropylene modified water-based acrylic resin with excellent boiling resistance in this embodiment is made from the following raw materials:

[0056] 10g methacrylic acid, 12g 4-tert-butylcyclohexyl methacrylate, 0.15g azobisisobutyronitrile, 0.15g di-tert-butyl peroxide, 3g methyl methacrylate, 8.2g butyl acrylate, 10g di Toluene, 10g propylene glycol methyl ether, 15g chlorinated polypropylene resin PP 803MWS, 6.5g neutralizer N,N-dimethylethanolamine, 25g deionized water.

[0057] The preparation method of the chlorinated polypropylene modified water-based acrylic resin with excellent boiling resistance in this embodiment comprises the following steps:

[0058] 1) 10g of methacrylic acid, 12g of 4-tert-butylcyclohexyl methacrylate, and 0.15g of azobisisobutyronitrile were stirred and mixed uniformly to obtain mixed monomer A; 3g of methyl methacrylate, 8.2g of butyl acrylate and 0.15g di-tert-butyl peroxide was stirred and mixed uniformly to obtai...

Embodiment 3

[0061] The chlorinated polypropylene modified water-based acrylic resin with excellent boiling resistance in this embodiment is made from the following raw materials:

[0062] 6g acrylic acid, 5g isobornyl methacrylate, 0.05g azobisisobutyronitrile, 15g methyl methacrylate, 15g butyl acrylate, 3g dibenzoyl peroxide, 5g xylene, 2.5g chlorinated polypropylene Resin 16-LP, 3g neutralizer triethylamine, 45.45g deionized water.

[0063] The preparation method of the chlorinated polypropylene modified water-based acrylic resin with excellent boiling resistance in this embodiment comprises the following steps:

[0064] 1) Stir and mix 6g of acrylic acid, 5g of isobornyl methacrylate and 0.05g of azobisisobutyronitrile to obtain mixed monomer A; mix 15g of methyl methacrylate, 15g of butyl acrylate and 3g of diphenyl peroxide Formyl is stirred and mixed evenly to obtain mixed monomer B;

[0065] 2) In a flask equipped with a dropping funnel, a thermometer, a condenser and a stirring...

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Abstract

The invention relates to a chlorinated polypropylene modified water-based acrylic resin with excellent water boiling resistance, a preparation method thereof and a paint. The chlorinated polypropylene modified water-based acrylic resin of the present invention is made of the following raw materials in mass percentage: 5-20% of co-solvent; 2.5-15% of chlorinated polypropylene; 4.5-10% of hydrophilic monomer; monomer 5-20%; initiator a 0.05-3%; vinyl monomer 5-30%; initiator b 0.05-3%; neutralizer 3-12%; deionized water 25-45.45%. The present invention combines the chlorinated polypropylene component and the acrylic resin component through graft copolymerization, which can improve the adhesion between the resin and the non-polar polyolefin substrate, and adopts a two-step dropping method to combine the hydrophilic monomer and the acrylic resin The functional monomers with strong hydrophobicity and large steric hindrance gather together to ensure that the resin has excellent water boiling resistance while having good adhesion.

Description

technical field [0001] The invention relates to a modified water-based acrylic resin, in particular to a chlorinated polypropylene modified water-based acrylic resin with excellent water boiling resistance, a preparation method thereof and a coating. Background technique [0002] As one of the external parts of the vehicle, the bumper not only has a certain decorative effect on the appearance of the car, but more importantly, it undertakes the important task of absorbing and alleviating external impact, protecting the body and protecting the safety of the occupants. At present, automobile bumpers mainly use plastic bumpers. This is because the elasticity of the plastic itself can effectively absorb the impact force of collisions with pedestrians, and minimize the degree of injury to pedestrians as much as possible. [0003] The bumper is mainly made of polypropylene. In order to improve the appearance of the plastic bumper and the vehicle, it is necessary to coat the plastic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F255/02C08F220/06C08F220/14C08F212/08C08F220/18C09D151/06C08J7/04C08L23/12
CPCC09D151/06C08F255/023C09D5/002C08J2323/12C08J2451/06C08J7/0427C08F220/1811C08F220/1804
Inventor 许飞张玉兴张汉青庄振宇胡中祝宝英刘汉功王艳艳刘明陈卫东周丽刘睿左慧明朱柯朱正宝
Owner CHINA NAT OFFSHORE OIL CORP