E glass fiber paper for CEM-3 copper-clad plate and manufacturing method of E glass fiber paper

A glass fiber paper and glass fiber technology, applied in the direction of synthetic cellulose/non-cellulose material pulp/paper, non-fiber pulp addition, fiber raw material treatment, etc., can solve problems not related to the E-glass fiber paper process, etc. Achieve the effect of white appearance, good compatibility and good dimensional stability
CN108130784AActive Publication Date: 2018-06-08陕西华特新材料股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
陕西华特新材料股份有限公司
Publication Date
2018-06-08

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Abstract

The invention provides E glass fiber paper for a CEM-3 copper-clad plate and a manufacturing method of the E glass fiber paper. The E glass fiber paper is composed of glass fibers and an adhesive. Cut-short glass fibers are dispersed in white water prepared from deionized water, a glass fiber dispersing agent, a thickening agent, a defoaming agent and other chemical auxiliaries, the glass fibers are scooped out of the white water to form wet ground paper, chemical adhesives and auxiliaries are applied for adhesion, drying through a drying furnace is conducted, the adhesives are solidified, andthe E glass fiber paper for the CEM-3 copper-clad plate is formed. The cut-short glass fibers are E glass fibers of the electronic level. The E glass fibers prepared from the method are uniform in fiber dispersing, stable in gram weight and consistent in thickness; the fibers are high in tensile strength, high in solvent resistance and high in fiber porosity due to all-direction distribution, a large amount of dielectric filler can be added when the glass fibers are soaked in epoxy resin, and the glass fibers are a high-quality base material for manufacturing the CEM-3 copper-clad plate.
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Description

technical field

[0001] The invention relates to a method for making E glass fiber paper used for CEM-3 copper clad boards. Background technique

[0002] Copper-clad laminate is the basic material of printed circuit boards. Copper-clad laminates are generally made of cotton pulp paper, glass fiber cloth impregnated with phenolic, polyester, and epoxy resin, then pressed with copper foil, that is, FR4 copper-clad laminate. Later, glass fiber paper was impregnated with resin and fillers were added to make core material composite glass fiber cloth impregnated with resin and covered with copper foil to make plate, that is, composite substrate CEM-3 copper clad laminate. Patents CN202053608U, CN201797646U, and CN102029746A all introduced this method. E-glass fiber paper is the base material of CEM-3 composite base copper clad laminate for printed circuit boards. Among all types of copper clad laminates, FR-4 based on glass fiber cloth has the best performance. CEM-3 has the same...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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