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A kind of manufacturing method of modified polytetrafluoroethylene copper-clad laminate

A technology of polytetrafluoroethylene and its production method, which is applied in the direction of chemical instruments and methods, layered products, lamination devices, etc., can solve the problems of changes in dielectric properties and high thermal expansion coefficient, achieve good dimensional stability, and overcome the problems of weaving effect, the effect of improving mechanical properties

Active Publication Date: 2020-12-01
ZHEJIANG WAZAM NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The above two methods have improved the performance of PTFE copper-clad laminates to a certain extent, but they still cannot solve the problems of changes in dielectric properties and high thermal expansion coefficients at the same time.

Method used

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  • A kind of manufacturing method of modified polytetrafluoroethylene copper-clad laminate
  • A kind of manufacturing method of modified polytetrafluoroethylene copper-clad laminate
  • A kind of manufacturing method of modified polytetrafluoroethylene copper-clad laminate

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Embodiment 1

[0040] 1. Recipe

[0041] Sodium-naphthalene treated polytetrafluoroethylene powder 100g

[0042] Acrylic 10g

[0043] Absolute ethanol 145g

[0044] Zirconia Balls 600g

[0045] Silica 30g

[0046] Silane coupling agent 1.5g

[0047] Kerosene 100g

[0048] 2. Steps

[0049] (1) PTFE modification: 100g sodium-naphthalene-treated PTFE powder, 10g acrylic acid, 100g absolute ethanol, 600g zirconia balls (diameter 1mm) were placed in a stirring ball mill at 10-20 °C for 24 hours of wet grinding (stirring speed 650r / min), then washed and dried to obtain modified polytetrafluoroethylene.

[0050] (2) Filler modification: 30g of silica, 1.5g of silane coupling agent, 45g of absolute ethanol, and 180g of zirconia balls (1mm in diameter) were placed in a stirring ball mill for wet grinding at room temperature for 24 hours (stirring speed 650r / min) and then washed and dried to obtain modified fillers.

[0051] (3) Disperse the modified polytetrafluoroethylene and the modified ...

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Abstract

The invention discloses a manufacturing method of a modified teflon copper-clad plate. The method comprises the following steps: (1) modifying sodium-naphthalene treated teflon through a grafting monomer to obtain modified teflon; (2) modifying a filler through a coupling agent to obtain a modified filler; (3) dispersing the modified teflon obtained in the step (1) into kerosene, then adding the modified filler obtained in the step (2), mixing to obtain a slurry; (4) coating the slurry obtained in the step (3) on a copper foil, and pressing to obtain the modified teflon copper-clad plate. Thepressed copper-clad plate does not contain a glass fabric and effectively avoids the effect of glass weaving; the pressed teflon copper-clad plate has the advantages of stable dielectric property, lowcoefficient of thermal expansion, good size stability and the like.

Description

technical field [0001] The invention belongs to the technical field of copper clad laminates, in particular to a preparation method of modified polytetrafluoroethylene copper clad laminates. Background technique [0002] With the rapid development of social informatization, the high speed of information processing and the significant increase in the amount of information processing, mobile communications such as mobile phones and car phones used in the high-frequency field of 800MHz to Gigabit are becoming more and more widespread. In order to achieve the increase in the number of channels, the goal of high performance and multi-function, as well as large-scale electronic computers, electronic switches, microwave strip antennas, satellite communication equipment, etc. operating in the high-frequency and even microwave fields, substrate materials for printed circuit boards put forward higher requirements. [0003] As a high-frequency printed board substrate material, copper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/10B32B37/06C08L51/00C08K9/06C08K3/36C08F259/08C08F220/06
CPCB32B37/06B32B37/10C08F259/08C08K3/36C08K9/06C08F220/06C08L51/003
Inventor 马晓飞韩梦娜卢悦群李强
Owner ZHEJIANG WAZAM NEW MATERIAL CO LTD