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A kind of copolymer emulsion of amino acid modified chlorine-acetic-acrylic acid and preparation method thereof

An amino acid and copolymer technology, used in anti-corrosion coatings and other directions, can solve the problems of low resin adhesion and corrosion resistance, and achieve the effects of improved adhesion and corrosion resistance, enhanced toughness and water resistance, and simple operation.

Active Publication Date: 2017-06-23
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] On the basis of summarizing the characteristics of existing products on the market, combined with the research results of amino acids, the present invention innovatively proposes to graft and modify vinyl chloride-vinyl acetate-butyl acrylate terpolymer emulsion with amino acids, thereby introducing An amino acid modified vinyl chloride-vinyl acetate-butyl acrylate copolymer emulsion, which effectively solves the shortcomings of the original resin, such as low adhesion and corrosion resistance

Method used

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  • A kind of copolymer emulsion of amino acid modified chlorine-acetic-acrylic acid and preparation method thereof
  • A kind of copolymer emulsion of amino acid modified chlorine-acetic-acrylic acid and preparation method thereof
  • A kind of copolymer emulsion of amino acid modified chlorine-acetic-acrylic acid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Weigh the content of each component according to mass percentage:

[0031]

[0032] 2. Preparation method

[0033] 1. Mix and dissolve the amino acid, triethylenediamine and deionized water weighed by mass percentage;

[0034] 2. Mix the vinyl chloride-vinyl acetate-butyl acrylate copolymer emulsion weighed by mass percentage with the solution obtained in step 1, and stir well;

[0035] 3. The mixture obtained in step 2 is heated in a water bath at 40-60° C., reacted for 3-6 hours, and stirred uniformly to obtain an amino acid modified vinyl chloride-vinyl acetate-butyl acrylate copolymer emulsion.

[0036] 3. Beneficial effects

[0037] The measured solid content of the copolymer emulsion obtained in this example is 55.7%, and it can be surface-dried within 1 hour after coating and film formation; it is measured by the salt spray test, and there is no corrosion foci in the 110h salt spray test; the adhesion is reached by the cross-cut method. Level 1.

Embodiment 2

[0039] 1. Weigh the content of each component according to mass percentage:

[0040]

[0041] 2. The preparation method is the same as in Example 1

[0042] 3. Beneficial effects

[0043] The measured solid content of the copolymer emulsion obtained in this example is 56.7%, and it can be surface-dried within 1 hour after coating and film formation; it is measured by the salt spray test, and no corrosion foci is seen in the 150h salt spray test; the adhesion is reached by the cross-cut method. Level 1.

Embodiment 3

[0045] 1. Weigh the content of each component according to mass percentage:

[0046]

[0047] 2. The preparation method is the same as in Example 1

[0048] 3. Beneficial effects

[0049] The measured solid content of the copolymer emulsion obtained in this example is 56.9%, and it can be surface-dried within 1 hour after coating and film formation; it is measured by the salt spray test, and there is no corrosion foci in the 175h salt spray test; the adhesion force is up to Level 1.

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Abstract

The invention discloses amino acid-modified chloroethylene-vinyl acetate-butyl acrylate copolymer emulsion. The amino acid-modified chloroethylene-vinyl acetate-butyl acrylate copolymer emulsion is prepared from, by mass, 85-95% of chloroethylene-vinyl acetate-butyl acrylate copolymer emulsion, 1-10% of amino acid, 0.5-4% of triethylene diamine and 1-4% of deionized water. As is shown in adhesive force and corrosion resistance tests conducted according to national relevant standards, the adhesive force and corrosion resistance of the modified copolymer are both significantly improved, and the toughness and water resistance of a coating are further enhanced. An original modification method or way for polymers with polyvinyl chloride as the body is broadened to some extent, and therefore the application range of polyvinyl chloride resin is broadened. The invention further discloses a preparation method of the amino acid-modified chloroethylene-vinyl acetate-butyl acrylate copolymer emulsion. The preparation method is easy to implement, safe and environmentally friendly and meets the environment friendliness rule.

Description

Technical field [0001] The invention belongs to the technical field of chemical materials, and relates to an amino acid modified vinyl chloride-vinyl acetate-butyl acrylate copolymer emulsion and a preparation method thereof. Background technique [0002] The copolymer of vinyl chloride and vinyl acetate is obtained by the copolymerization of vinyl chloride and vinyl acetate under the action of an initiator, referred to as vinyl chloride resin. On the basis of vinyl chloride resin, technicians developed a ternary vinyl chloride resin by changing the composition of vinyl chloride comonomers or mixing with other resins. For example, the tribasic chloric acid resin modified with alkyd resin can improve the gloss and gloss retention of the vinyl acetate resin, and reduce volatilization. [0003] Among them, vinyl chloride-vinyl acetate-butyl acrylate copolymer is a relatively important ternary copolymer resin with polyvinyl chloride as the main body. Polyvinyl chloride has excellent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/06C08F218/08C08F220/18C08F8/32C09D127/06C09D5/08
Inventor 高延敏贾方方李照磊
Owner JIANGSU UNIV OF SCI & TECH
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