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Platable polyformaldehyde composition and preparation method and electroplating method thereof

A polyoxymethylene composition and the technology of the composition are applied in the field of electroplatable polyoxymethylene composition and its preparation and electroplating to achieve the effects of improved bonding strength and good electroplating performance

Active Publication Date: 2014-02-05
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electroplatable polyoxymethylene composition and its preparation method and electroplating method, which overcomes the technical prejudice in the field of plastic electroplating, and solves the technical problem of POM electroplating that has long been desired by those skilled in the art but has not been overcome.

Method used

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  • Platable polyformaldehyde composition and preparation method and electroplating method thereof
  • Platable polyformaldehyde composition and preparation method and electroplating method thereof

Examples

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Effect test

Embodiment 1

[0040] Embodiment 1 The preparation of electroplatable polyoxymethylene composition and electroplated product thereof of the present invention

[0041] Preparation of polyoxymethylene composition:

[0042] Acetal copolymer: CNOOC Amano Chemical Co., Ltd., with a dioxane content of 4% acetal copolymer;

[0043] Acrylonitrile-butadiene-styrene copolymer (ABS): Taiwan Chimei, butadiene content 30%;

[0044] Inorganic powder: talcum powder, without surface treatment agent treatment, 2000 mesh;

[0045] Silane coupling agent: Nanjing Shuguang Silane Chemical Co., Ltd.

[0046] Put 100 parts of polyoxymethylene, 15 parts of acrylonitrile-butadiene-styrene copolymer, and 15 parts of talcum powder in a high-speed mixer to pre-mix evenly, and then melt, mix, extrude, and granulate in a twin-screw extruder. That is to obtain the polyoxymethylene resin of the present invention, wherein the processing temperature is 170-220° C., and the screw speed is 240 rpm.

[0047] Electroplating ...

Embodiment 2

[0062] Embodiment 2 The preparation of electroplatable polyoxymethylene composition and its electroplating product of the present invention

[0063] The polyoxymethylene composition is prepared according to Example 1, the difference is: the ratio of polyformaldehyde, acrylonitrile-butadiene-styrene copolymer and talcum powder in the composition: 100 parts of polyformaldehyde, acrylonitrile-butadiene- 20 parts of styrene copolymer (30% butadiene content), 15 parts of talcum powder.

[0064] The electroplating process is the same as in Example 1, and the resulting electroplating product is A2.

Embodiment 3

[0065] Embodiment 3 The preparation of electroplatable polyoxymethylene composition and its electroplating product of the present invention

[0066] A polyoxymethylene composition was prepared according to Example 2, except that the content of butadiene in the acrylonitrile-butadiene-styrene copolymer in the composition was 20%.

[0067] Carry out electroplating according to the electroplating process of embodiment 1, the obtained electroplating product is A3.

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Abstract

The invention provides a platable polyformaldehyde composition. The composition is prepared by the following raw materials in parts by weight: 100 parts of polyformaldehyde resin, 15-30 parts of acrylonitrile-butadiene-styrene, and 0-30 parts of inorganic powder. Compared with pure polyformaldehyde resin, after the composition is processed and electroplated, the bonding strength between the plating layer and the substrate is greatly improved, and the plating layer and the substrate cannot be separated. As to another unique feature of the composition, after the platable polyformaldehyde composition is electroplated, the plating layer and the substrate are likely to be separated, but after the coarsening surface is treated by a surface treating agent containing reactive perssads, the bonding strength between the plating layer and the substrate of the obtained electroplated product is further improved, and polyformaldehyde electroplated products according with related national standards are obtained.

Description

technical field [0001] The invention relates to an electroplatable polyoxymethylene composition, a preparation method and an electroplating method. Background technique [0002] Plastic electroplating has the advantages of light weight, good formability, and good appearance quality, and is widely used in the fields of automobiles, electronic appliances, and daily necessities. It is widely used in industries such as automobiles, electronic appliances, chemicals, hardware and building materials. Since the first successful ABS plastic electroplating in the United States in 1964, plastic electroplating technology has developed very rapidly, and ABS plastic electroplating has achieved large-scale industrial production. Today, ABS has been occupying the main market of plastic electroplating products, but it has high temperature and easy deformation. and other shortcomings. [0003] Polyoxymethylene (POM) is a thermoplastic engineering plastic with extremely high strength and rig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L59/00C08L55/02C08K3/36C08K3/30C08K3/22C08K3/34C08K3/26C08K7/20B29C47/92C25D5/56C25D5/14B29C48/92
Inventor 周涛刘飞伟詹延辉张爱民
Owner SICHUAN UNIV
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