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A kind of thermoplastic material surface treatment agent and preparation method thereof

A surface treatment agent, thermoplastic material technology, applied in the direction of coating, can solve the problems of slow curing, not suitable for modern industrial requirements of rapid assembly, unable to promote the curing of anaerobic adhesives, etc., to improve the bond strength, promote decomposition, The effect of increasing the curing speed

Active Publication Date: 2021-04-13
广州耀威塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this treatment agent cannot promote the curing of anaerobic adhesives. When anaerobic adhesives are used for bonding, the curing is very slow, and it is not suitable for the modern industrial requirements of rapid assembly.

Method used

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  • A kind of thermoplastic material surface treatment agent and preparation method thereof
  • A kind of thermoplastic material surface treatment agent and preparation method thereof
  • A kind of thermoplastic material surface treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Synthesis of the fluoropolymer:

[0020] Add 100 grams of ethyl acetate in a four-necked flask equipped with a stirrer, a thermometer, a dropping funnel, and a condenser, then slowly add 5 grams of trifluoroethyl methacrylate, 2 grams of 2-hydroxyethyl acrylate, 10 grams of butyl acrylate, 0.4 grams of azobisisobutyronitrile, and 0.5 grams of n-dodecanethiol are uniformly mixed. During the dropping process, the temperature was kept at 70° C., and after the dropping, the temperature was slowly raised to 95° C., and the reaction was continued for 4 hours to prepare a transparent fluoropolymer.

[0021] 2) At room temperature, add 1g of copper acetate and 3g of chlorinated polypropylene to 93g of ethyl acetate, the chlorine content is >45%, and after dissolving, add 1g of diisopropoxy diacetylacetonate titanate and 2g of the above-mentioned Fluoropolymer, stir evenly and filter to remove impurities to obtain polypropylene surface treatment agent.

Embodiment 2

[0023] 1) Synthesis of the fluoropolymer:

[0024] Add 100 grams of ethyl acetate to a four-necked flask equipped with a stirrer, a thermometer, a dropping funnel, and a condenser tube, then slowly add 3 grams of hexafluorobutyl acrylate, 3 grams of 2-hydroxyethyl acrylate, and 12 grams of Butyl acrylate, 0.2 g of azobisisobutyronitrile, and 0.4 g of n-dodecanethiol are uniformly mixed. During the dropping process, the temperature was kept at 80° C., and after the dropping, the temperature was slowly raised to 90° C., and the reaction was continued for 5 hours to prepare a transparent fluoropolymer.

[0025] 2) At room temperature, add 0.8 g of acetylacetone ketone and 3 g of chlorinated polypropylene to 90.4 g of ethyl acetate, the chlorine content is >45%, and after dissolution, add 0.8 g of diisopropoxydiacetylacetonate titanate and 5 g of The fluorine-containing polymer obtained above is stirred evenly and then filtered to remove impurities to obtain a polypropylene surfa...

Embodiment 3

[0027] 1) Synthesis of the fluoropolymer:

[0028] Add 100 grams of ethyl acetate to a four-necked flask equipped with a stirrer, a thermometer, a dropping funnel, and a condenser, then slowly add 2 grams of trifluorooctyl acrylate, 1 gram of 2-hydroxyethyl acrylate, 8 gram of butyl acrylate, 0.2 gram of azobisisobutyronitrile, and 0.3 gram of n-dodecanethiol homogeneous mixed solution. During the dropping process, the temperature was kept at 80° C., and after the dropping, the temperature was slowly raised to 95° C., and the reaction was continued for 6 hours to prepare a transparent fluoropolymer.

[0029] 2) At room temperature, add 1g of copper tartrate and 6g of chlorinated polyethylene to 86g of ethyl acetate, the chlorine content is >65%, and after dissolution, add 1g of γ-methacryloxypropyl trimethoxysilane and 6g of the above to obtain The fluorine-containing polymer is stirred evenly and then filtered to remove impurities to obtain a polyethylene surface treatment a...

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Abstract

The invention discloses a thermoplastic material surface treatment agent and a preparation method thereof. The present invention includes ethyl acetate, organic copper compound, coupling agent, chlorinated polymer, and fluorine-containing polymer. At room temperature, add organic copper compound and chlorinated polymer to ethyl acetate, add fluorine-containing polymer and coupling agent in sequence after dissolving, stir evenly, filter and remove impurities to obtain polyethylene and polypropylene surface treatment agent. The polyethylene and polypropylene surface treatment agent of the present invention not only contains organic copper components, which can promote the decomposition of anaerobic adhesive initiators and increase the curing speed, but also contains halogen-containing polymers and coupling agents to make anaerobic adhesives The bond strength is significantly improved.

Description

technical field [0001] The invention belongs to the technical field of surface treatment and relates to the surface treatment of anaerobic adhesive bonding materials, in particular to a thermoplastic material polyethylene and polypropylene surface treatment agent and a preparation method thereof. Background technique [0002] Polyethylene and polypropylene are thermoplastic materials, which have many advantages such as low price, excellent mechanical properties, and chemical corrosion resistance, and are widely used in machinery, electronics, construction, computer and other industries. On the other hand, anaerobic adhesives are one-component adhesives made based on the principle that oxygen molecules inhibit free radicals. Under anaerobic conditions, the initiators of anaerobic adhesives decompose to generate free radicals and react with monomers. Generate monomer free radicals, and then quickly react with other monomer molecules to form chain free radicals with small to la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D123/28C09D133/08C09D7/63C08F220/18C08F220/24C08F220/20
CPCC08F220/18C09D123/28C09D123/286C09D7/63C08L33/066C08K5/098
Inventor 聂秋林
Owner 广州耀威塑胶有限公司
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