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
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[0064] This embodiment is an E-glass fiber paper for CEM-3 copper clad board, which is composed of glass fiber and binder, wherein the glass fiber is 87%-91%, and the binder is 9%-13% ; The percentages stated are percentages by weight. The adhesive is epoxy resin.
[0065] This embodiment also proposes a method for preparing the E glass fiber paper used for CEM-3 copper clad board, the specific process is:
[0066] Step 1, prepare white water.
[0067] The raw materials for preparing white water are thickener, dispersant, defoamer and deionized water. Among them, the thickener is 0.1-0.16%, the dispersant is 0.01%, and the deionized water is more than 99.8%. The content of the defoamer is added according to the amount of foam in the prepared white water to eliminate the foam.
[0068] Described thickening agent is hydroxyethyl cellulose ether, adopts the product of Union Carbide Company of the United States. The pH value of the aqueous solution is 6.0-8.5.
[0069] The d...
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