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Plastic-metal binder and preparation method thereof

A metal bonding and plastic technology, applied in the direction of adhesives, adhesive types, non-polymer adhesive additives, etc., can solve the problems of low bonding strength, pulling apart, weak bonding, etc. The effect of simple process, good stability and high bond strength

Inactive Publication Date: 2016-02-17
SUZHOU JIEDERUI PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some plastics with very low surface energy or metal materials whose surface is easily passivated, it will be difficult to combine plastics with metals. Even if the two materials can be bonded together with ordinary adhesives and conventional methods, the combination The components are extremely weak, the bonding strength is not high, and it is easy to be pulled apart under a small external force; at the same time, the water resistance of the organic adhesive is not good, and it is easy to make the bonding more difficult due to the immersion of water molecules. Not solid

Method used

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  • Plastic-metal binder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a plastic-metal adhesive, the preparation steps are as follows:

[0022] Weigh each raw material according to parts by weight, specifically: 60 parts of epoxy resin, 30 parts of phenolic resin, 6 parts of isocyanate, 1 part of chromium powder, 2 parts of cobalt powder, 10 parts of dibutyl maleate, Tween 601 parts, 3 parts of calcium stearate, 2 parts of sodium chloride, 6 parts of polyoxymethylene dimethyl ether, 4~10 parts of polyoxymethylene, 2 parts of sodium silicate, 13 parts of o-cresyl glycidyl ether, curing agent 15 parts, 22 parts of acetone and 30 parts of butyl acetate; The curing agent is the composite of trimethylhexamethylenediamine and bisbenzylamino ether in a weight ratio of 0.5:1;

[0023] Add epoxy resin, phenolic resin, dibutyl maleate, o-cresyl glycidyl ether, polyoxymethylene dimethyl ether, polyoxymethylene and butyl acetate in the container, and heat Stir at high temperature to obtain mixture A;

[0024] Add chromium pow...

Embodiment 2

[0027] A preparation method of a plastic-metal adhesive, the preparation steps are as follows:

[0028] Weigh each raw material according to parts by weight, specifically: 75 parts of epoxy resin, 48 parts of phenolic resin, 14 parts of isocyanate, 5 parts of chromium powder, 8 parts of cobalt powder, 18 parts of dibutyl maleate, Tween 606 parts, 10 parts of calcium stearate, 7 parts of sodium chloride, 11 parts of polyoxymethylene dimethyl ether, 4~10 parts of polyoxymethylene, 6 parts of sodium silicate, 28 parts of o-cresyl glycidyl ether, curing agent 25 parts, 40 parts of acetone and 50 parts of butyl acetate; The curing agent is the compound of trimethylhexamethylene diamine and bisbenzyl amino ether in a weight ratio of 2:3;

[0029] Add the epoxy resin, phenolic resin, dibutyl maleate, o-cresyl glycidyl ether, polyoxymethylene dimethyl ether, polyoxymethylene and butyl acetate in the container, at 50 ℃ Stir at high temperature to obtain mixture A;

[0030] Add chromi...

Embodiment 3

[0033] A preparation method of a plastic-metal adhesive, the preparation steps are as follows:

[0034] Weigh each raw material according to parts by weight, specifically: 67 parts of epoxy resin, 39 parts of phenolic resin, 10 parts of isocyanate, 3 parts of chromium powder, 5 parts of cobalt powder, 14 parts of dibutyl maleate, Tween 603 parts, 6 parts of calcium stearate, 5 parts of sodium chloride, 8 parts of polyoxymethylene dimethyl ether, 7 parts of polyoxymethylene, 4 parts of sodium silicate, 21 parts of o-cresyl glycidyl ether, 20 parts of curing agent , 31 parts of acetone and 40 parts of butyl acetate; Described curing agent is the composite of trimethylhexamethylene diamine and bisbenzyl amino ether by weight ratio of 1.2:2;

[0035] Add the epoxy resin, phenolic resin, dibutyl maleate, o-cresyl glycidyl ether, polyoxymethylene dimethyl ether, polyoxymethylene and butyl acetate in the container, at 35~50 Stirring at a temperature of °C to obtain a mixture A;

[...

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Abstract

The invention discloses a plastic-metal binder and a preparation method thereof. The binder comprises raw materials in parts by mass as follows: 60-75 parts of epoxy resin, 30-48 parts of phenolic resin, 6-14 parts of isocyanate, 1-5 parts of chromium powder, 2-8 parts of cobalt powder, 10-18 parts of dibutyl maleate, 1-6 parts of Tween-60, 3-10 parts of calcium stearate, 2-7 parts of sodium chloride, 6-11 parts of polyoxymethylene dimethyl ether, 4-10 parts of polyformaldehyde, 2-6 parts of sodium silicate, 13-28 parts of cresyl glycidyl ether, 15-25 parts of a curing agent, 22-40 parts of acetone and 30-50 parts of butyl acetate. The prepared binder has the tensile strength of 2.1-3.2 Mpa and shows the higher bonding strength, higher than 80% of the tensile strength is still kept after the binder is immersed in water for 2 h, and the binder has the better water resistance and shows the good stability. The prepared binder is suitable for bonding of metal and plastic materials, and the bonding technology is simple and suitable for batch production.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a binder and a preparation method thereof, in particular to a plastic-metal binder and a preparation method thereof. Background technique [0002] With the rapid development of the electronic field, for better processing and application, more and more electronic parts use plastic and metal materials. For better practical application, sometimes it is necessary to bond plastic and metal materials more and more, and at the same time, higher requirements are put forward for the bonding force of the two materials. Nowadays, the combination method of plastic material and metal material mainly adopts to apply a layer of heat-sensitive glue on the bonding part, and then realize the combination of the two through insert injection molding. However, for some plastics with very low surface energy or metal materials whose surface is easily passivated, it will be difficult to combine plastics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J161/06C09J11/04C09J11/06
Inventor 姚振红
Owner SUZHOU JIEDERUI PRECISION MACHINERY
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