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Polyester modified hydroxyl acrylic resin for automobile hub paint and synthetic method thereof

A hydroxyacrylic acid and polyester modification technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of lack of excellent performance, and achieve the effects of good impact resistance, good flexibility and strong adhesion

Inactive Publication Date: 2017-10-10
江苏三木化工股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing wheel hub coatings do not possess the above multiple excellent properties.

Method used

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  • Polyester modified hydroxyl acrylic resin for automobile hub paint and synthetic method thereof
  • Polyester modified hydroxyl acrylic resin for automobile hub paint and synthetic method thereof
  • Polyester modified hydroxyl acrylic resin for automobile hub paint and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. A polyester-modified hydroxyacrylic resin for automotive wheel paint, which is made of the following raw materials:

[0027]

[0028]

[0029] 2, a kind of synthetic method of the polyester modified hydroxyacrylic resin that is used for automobile wheel paint, it comprises the following steps:

[0030] (1) Mix 21g of methyl methacrylate, 2.4g of hydroxyethyl methacrylate, 3g of isooctyl acrylate, 0.45g of butyl acrylate, and 0.5g of azobisisobutyronitrile, and divide them into Two parts, referred to as component A and component C respectively;

[0031] (2) Mix the remaining 9g of methyl methacrylate, 0.6g of hydroxyethyl methacrylate, 2g of isooctyl acrylate, and 1.05g of butyl acrylate, which is called component B for short.

[0032] (3) 30 g of toluene, 20 g of butyl acetate and 10 g of polyester prepolymer (polyester prepolymer consists of 2 parts of neopentyl glycol, 0.5 part of trimethylolpropane, 3 parts of hexahydrophthalic anhydride, 4.5 parts of xylen...

Embodiment 2

[0038] 1. A polyester-modified hydroxyacrylic resin for automotive wheel paint, which is made of the following raw materials:

[0039] components

mass (g)

Toluene

20

Butyl acetate

20

Methyl methacrylate

20

Hydroxyethyl methacrylate

9

polyester prepolymer

15

Isooctyl acrylate

5

Butyl acrylate

4

Azobisisobutyronitrile

0.5

[0040] .

[0041] 2, a kind of synthetic method of the polyester modified hydroxyacrylic resin that is used for automobile wheel paint, it comprises the following steps:

[0042] (1) Mix 16g of methyl methacrylate, 7.2g of hydroxyethyl methacrylate, 2.5g of isooctyl acrylate, 2g of butyl acrylate, and 0.5g of azobisisobutyronitrile, and divide them into Two parts, referred to as component A and component C respectively;

[0043] (2) Mix the remaining 4g of methyl methacrylate, 1.8g of hydroxyethyl methacrylate, 2.5g of isooctyl acrylate, and 2g of butyl acrylat...

Embodiment 3

[0049] Embodiment 3 application formula embodiment

[0050] 1. According to the formula in the following table, prepare the coating for the wheel hub for baking varnish.

[0051]

[0052] 2. Mix and grind the above raw materials until the fineness is less than 20um, spray the plate, and cure at room temperature. The test performance results are as follows:

[0053]

[0054]

[0055] The above experimental results show that the paint film prepared with the polyester-modified hydroxyacrylic resin of the present invention has the advantages of good corrosion resistance, high hardness, good impact resistance, strong adhesion, good flexibility, etc., and can be widely used in wheel hub paints. field.

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Abstract

The invention discloses a polyester modified hydroxyl acrylic resin for automobile hub paint and a synthetic method thereof. The polyester modified hydroxyl acrylic resin for automobile hub paint is prepared from, by weight part, 15-30 parts of methyl methacrylate, 3-10 parts of hydroxyethyl methylacrylate, 5-10 parts of 2-ethylhexyl acrylate, 1-5 parts of butyl acrylate, 5-15 parts of polyester prepolymer, 40-60 parts of organic solvent and 0.3-0.6 part of initiator. A paint film prepared from the polyester modified hydroxyl acrylic resin for the automobile hub paint has the advantages of being good in corrosion resistance at normal temperature, high in hardness and impact resistance, good in adhesive force and flexibility and the like and accordingly can be applied to the field of hub paint.

Description

technical field [0001] The invention relates to a method for synthesizing polyester-modified hydroxyacrylic resin used in automobile wheel paint, and belongs to the technical field of chemical synthesis. Background technique [0002] Wheel hub coatings are different from other coatings. They have been experienced in spring, summer, autumn and winter all year round, and have extremely high performance requirements for automotive paints. Wheel hub coatings must not only have good mechanical properties, good fullness, and high gloss, but also have attachments. It has good strength, high hardness, and strong scratch resistance. At the same time, it must have excellent weather resistance, abrasion resistance, gloss persistence, and excellent resistance to gasoline, alcohol, acid, alkali, and salt spray. But existing hub coating also does not possess above multiple excellent properties. Contents of the invention [0003] Purpose of the invention: The purpose of the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/02C08F220/14C08F220/28C08F220/18C09D151/08C09D5/08C09D7/12
CPCC08F283/02C08K2003/2241C09D5/08C09D151/08C08F220/14C08L61/20C08K3/22
Inventor 宋坤忠刘玮
Owner 江苏三木化工股份有限公司
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