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Process for preparing high performance copper-clad polytetrafluoroethylene plate

A technology of polytetrafluoroethylene and copper clad laminate, which is applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of low peel strength, low bending strength, poor mechanical properties, etc., and achieve peeling High strength, high flexural strength, and improved mechanical properties

Inactive Publication Date: 2005-03-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polytetrafluoroethylene copper-clad laminate prepared by the present invention has excellent electrical properties, heat resistance and mechanical properties, and overcomes the poor adhesion between polytetrafluoroethylene, copper foil and reinforcing materials, and the bending resistance of polytetrafluoroethylene copper-clad laminate products. Disadvantages of low strength, low peel strength, and poor mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of novel high-performance polytetrafluoroethylene copper-clad laminate of the present invention is as follows:

[0023] (1) Add 5 parts by weight of glacial acetic acid to 25 parts by weight of water, then add 100 parts by weight of aromatic modified aminosilane coupling agent, and react for 2 hours at room temperature and at a speed of 300 rpm; Agent concentration is 0.2% by weight, promptly obtains glass cloth surface modification liquid;

[0024] (2) Soak the glass cloth in the surface modification solution prepared in step (1) for 5 minutes; remove the surface modification solution on the outer surface of the glass cloth, dry it naturally for 40 minutes, and bake it at 110°C for 80 minutes to obtain the surface treated glass cloth;

[0025] (3) the concentrated aqueous dispersion of ether-modified polytetrafluoroethylene with a resin concentration of 60% by weight and the polyperfluoroethylene propylene aqueous dispersion with a concentration...

Embodiment 2

[0032] The preparation method of novel high-performance polytetrafluoroethylene copper-clad laminate of the present invention is as follows:

[0033] (1) Add 5 parts by weight of glacial acetic acid to 25 parts by weight of water, then add 100 parts by weight of aromatic modified aminosilane coupling agent, and react for 4 hours at room temperature and at a speed of 200 rpm; Agent concentration is 0.6% by weight, promptly obtains glass cloth surface modification liquid;

[0034] (2) Soak the glass cloth in the surface modifying solution prepared in step (1) for 8 minutes; remove the surface modifying solution on the outer surface of the glass cloth, dry it naturally for 50 minutes, and bake it at 120°C for 100 minutes to obtain the surface treated glass cloth;

[0035] (3) the concentrated aqueous dispersion of ether-modified polytetrafluoroethylene with a resin concentration of 50% by weight and the aqueous dispersion of polyperfluoroethylene propylene with a concentration o...

Embodiment 3

[0042] The preparation method of novel high-performance polytetrafluoroethylene copper-clad laminate of the present invention is as follows:

[0043] (1) Add 5 parts by weight of glacial acetic acid to 25 parts by weight of water, then add 100 parts by weight of aromatic modified aminosilane coupling agent, and react for 3 hours at room temperature and at a speed of 200 rpm; Agent concentration is 0.5% by weight, promptly obtains glass cloth surface modification liquid;

[0044] (2) Soak the glass cloth in the surface modifying solution prepared in step (1) for 6 minutes; remove the surface modifying solution on the outer surface of the glass cloth, dry it naturally for 40 minutes, and bake it at 110°C for 120 minutes to obtain the surface treated glass cloth;

[0045] (3) the concentrated aqueous dispersion of ether-modified polytetrafluoroethylene with a resin concentration of 55% by weight and the aqueous dispersion of polyperfluoroethylene propylene with a concentration o...

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Abstract

The preparation process of novel high performance copper-clad PTFE plate includes the following steps: preparing inner layer of glass fiber fabric; preparing outer layer of glass fiber fabric; and cladding copper foil on two sides of the outer layer of glass fiber fabric. The copper-clad PTFE plate of the present invention has excellent electric performance, heat performance and mechanical performance, high bending strength, high size stability and high comprehensive performance.

Description

technical field [0001] The invention relates to a preparation method of a novel high-performance polytetrafluoroethylene copper-clad laminate. The polytetrafluoroethylene copper-clad laminate prepared by the invention has excellent electrical properties, heat-resistant properties and mechanical properties. Background technique [0002] High-frequency high-performance substrate materials have become the cutting-edge technology in the development of the copper clad laminate industry. Communication products and information electronic products are gradually developing in the direction of high frequency and high speed. The manufacturing technology of such products has entered a new revolution. Traditional substrate materials It is replaced by high-speed and high-reliability substrates, and its market demand is growing rapidly. High-frequency high-performance PTFE copper-clad laminates will have a large market. PTFE has excellent electrical properties, chemical corrosion resista...

Claims

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Application Information

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IPC IPC(8): B32B27/30
Inventor 杨卓如胡福田文秀芳程江皮丕辉
Owner SOUTH CHINA UNIV OF TECH
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