Unlock instant, AI-driven research and patent intelligence for your innovation.

Coating composition for chemical drug-resistant polyolefin material and preparation method thereof

A technology of chemical resistance and polyolefin, applied in the direction of coating, etc., can solve the problems of unsatisfactory chemical resistance of coating film, achieve good chemical resistance, ensure appearance color and chemical resistance, improve reaction interaction The effect of link density

Inactive Publication Date: 2019-05-03
DONGLAI COATING TECH SHANGHAI
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In response to the above problems, some paint workers started to develop acrylic polyurethane series 2-component paint compositions, and added additives with anti-fingerprint function to the composition. It is disclosed in JP2011-184621 bulletin, but there is still much room for improvement in the chemical resistance (especially oleic acid and lactic acid resistance) and appearance color of the coating film
[0005] On the other hand, there is a disclosure in the patent JP2004-314060. This patent is designed to form a coating composition that can be cured at low temperature and has good adhesion to materials and good color appearance on rigid polyolefin resin parts. Chemical resistance (especially resistance to oleic acid and lactic acid) requirements of the coating film at the design terminal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coating composition for chemical drug-resistant polyolefin material and preparation method thereof
  • Coating composition for chemical drug-resistant polyolefin material and preparation method thereof
  • Coating composition for chemical drug-resistant polyolefin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] Add glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer, hydroxyethyl methacrylate or hydroxyethyl acrylate, azobisisobutyronitrile, solvent methyl ethyl ketone and methyl isobutyronitrile to the four-necked flask in turn. Butyl ketone, and use nitrogen replacement to remove the air in the reaction flask, and use nitrogen protection, heat up to 60-90 ° C, condense and reflux for 4-8 hours to obtain the above-mentioned glycidyl methacrylate modified vinyl chloride / acetic acid Ethylene Copolymer Resin 1. Wherein, the molar ratio of glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer and hydroxyethyl acrylate is 0.1-0.4:0.4-0.8:1:0.1-0.2. The amount of azobisisobutyronitrile is 0.1-0.5% of the total mass of the above monomers. The liquid acid value of the vinyl chloride / vinyl acetate copolymer resin 1 modified by glycidyl methacrylate is 2.4 KOHmg / g, and the weight average molecular weight of the copolymer resin 1 detected by GPC is 75,00...

example 2

[0034] Add glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer, hydroxyethyl acrylate, azobisisobutyronitrile, solvent ethyl ketone, and methyl isobutyl ketone to a four-necked flask in sequence, and use nitrogen gas to The air in the reaction bottle was replaced and removed, protected with nitrogen, heated to 60-90° C., condensed and refluxed for 4-8 hours to obtain the above-mentioned glycidyl methacrylate modified vinyl chloride / vinyl acetate copolymer resin 2. Wherein, the molar ratio of glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer and hydroxyethyl acrylate is 0.4-0.8:0.1-0.4:1:0.1-0.2. The amount of azobisisobutyronitrile is 0.1-0.5% of the total mass of the above monomers. The liquid acid value of the copolymer resin 2 of vinyl chloride / vinyl acetate modified by glycidyl methacrylate is 5.0 KOHmg / g, and the weight average molecular weight of the copolymer resin 1 detected by GPC is 82000.

example 3

[0036] Add glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer, hydroxyethyl methacrylate, azobisisobutyronitrile, solvent ethyl ketone and methyl isobutyl ketone successively in the four-necked flask, and Use nitrogen replacement to remove the air in the reaction bottle, and use nitrogen protection, heat up to 60-90 ° C, condense and reflux for 4-8 hours to obtain the above-mentioned glycidyl methacrylate modified vinyl chloride / vinyl acetate copolymer resin 3. Wherein, the molar ratio of glycidyl methacrylate, vinyl chloride monomer, vinyl acetate monomer, and hydroxyethyl methacrylate is 0.01-0.04:0.4-0.8:1:0.1-0.2. The amount of azobisisobutyronitrile is 0.1-0.5% of the total mass of the above monomers. The liquid acid value of the vinyl chloride / vinyl acetate copolymer resin 3 modified by glycidyl methacrylate is 0.3 KOHmg / g, and the weight average molecular weight of the copolymer resin 1 detected by GPC is 78,000.

[0037] The brief molecular framewor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a coating composition for a chemical drug-resistant polyolefin material, wherein the coating composition is prepared by mixing component A resin paint and component B resin paint in a weight ratio of 1: 3-3: 1, the component A resin paint comprises the following components in parts by weight: 1 to 40 parts of pigment and filler, 10 to 60 parts of acrylic acid modified chlorinated polypropylene resin, 0.2 to 5 parts of a dispersing agent and 10 to 20 parts of a solvent; wherein the component B resin paint comprises the following components in parts by weight: 20-50 parts of acrylic acid modified vinyl chloride / vinyl acetate copolymer resin, 10-60 parts of chlorinated polypropylene resin, 0.2-10 parts of a closed curing agent, 0.2 to 5 parts of a flatting agent, 0 to10 parts of extinction powder and 10 to 20 parts of a solvent. Compared with the prior art, the coating disclosed by the invention has excellent adhesiveness, water resistance, high weather resistance and other film-forming properties to a plastic material, and is particularly suitable for positions, which are easily contacted with a human body, of automotive interior parts, the adhesion of dirtsuch as fingerprints and sweat on the surface of a coating film is reduced, and the service life of the coating is prolonged.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a chemical-resistant polyolefin material coating composition and a preparation method thereof. Background technique [0002] In recent years, with the development of social industries and the improvement of people's living standards, the consumption and utilization rate of passenger cars has become higher and higher. Most of the materials for parts such as motorcycles, passenger cars, and containers are made of engineering plastics such as polycarbonate resin, ABS resin, and polyolefin. The surface treatment of these materials, due to the increasingly high-level orientation of buyers, the combination of smooth appearance, gloss, plumpness and other excellent coating properties of the treated surface has been paid more and more attention. [0003] Specifically, for passenger car interior parts made of the above materials, such as interior trim panels, central control panels, doo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D131/04C09D123/28C09D7/65C09D7/61
Inventor 朱忠敏叶小明罗映兵鲁帆帆
Owner DONGLAI COATING TECH SHANGHAI