Preparation method of breakdown-resistant cooked powder mica paper

A manufacturing method and technology of mica paper, applied in paper, papermaking, textiles and papermaking, etc., can solve the problems of unsatisfactory electrical strength and tensile strength of mica paper, single mica paper process, etc., and achieve consistent vertical and horizontal uniformity, durability Excellent breakdown performance and good dielectric properties

Inactive Publication Date: 2013-11-27
ANHUI JIANGWEI PRECISION IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current production process of mica paper is single, using raw powder or cooked powder for production, the electrical strength and tensile strength of mica paper are not ideal, and a new production process needs to be studied

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A method for manufacturing breakdown-resistant cooked powder mica paper, which is made of the following raw materials in parts by weight (kg): mica 130, white latex 6, potassium tetraborate 2, pentaerythritol 3, sodium hexametaphosphate 2, triethanolamine 1.3, Glycerin 3, sodium persulfate 2, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 3, appropriate amount of water;

[0016] Include the following steps:

[0017] (1) Calcining mica at a high temperature of 700-800°C for 1-2 hours to obtain mica clinker;

[0018] (2) Add silane coupling agent KH550 equivalent to 4% of the clinker weight and 3% sodium tripolyphosphate to the clinker, and grind it into powder to obtain a 50-120 mesh powder;

[0019] (3) Mix clinker powder with other remaining raw materials and add water until the water content is 40-50%, heat to 80-90°C, and stir for 1-2 hours;

[0020] (4) Dilute the slurry in step (3) to a clinker content of 3-4%, add redispersible latex powder equivalent to 5% of t...

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Abstract

The invention provides a preparation method of breakdown-resistant cooked powder mica paper. The mica paper is prepared from the following raw materials in parts by weight: 130-140 parts of mica, 5-6 parts of white latex, 1-2 parts of potassium tetraborate, 3-4 parts of pentaerythritol, 2-3 parts of sodium hexametaphosphate, 1.2-1.3 parts of triethanolamine, 3-4 parts of glycerin, 1-2 parts of sodium persulfate, 3-4 parts of N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane and a defined amount of water.

Description

technical field [0001] The invention relates to the technical field of mica paper production, in particular to a method for manufacturing breakdown-resistant cooked powder mica paper. Background technique [0002] Mica is a naturally occurring phyllosilicate mineral, which has excellent physical and electrical properties and maintains the above properties at high temperatures. It is completely chemically inert and non-flammable. The most important thing is It is resistant to high voltage, corona discharge and radiation. [0003] Mica paper is made of crushed mica flakes (muscovite, phlogopite, synthetic mica) as raw material, which is made into paper rolls by chemical pulping or hydraulic mechanical pulping at a slow speed of the cylinder paper machine, and then cut into rolls Tube paper or flat paper, mica paper maintains the excellent properties of natural mica, and has uniform thickness, small dielectric strength fluctuation range, high and stable corona initial voltage;...

Claims

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Application Information

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IPC IPC(8): D21H13/44D21H17/66D21H17/35D21H17/13D21H17/20D21H17/06D21H17/10D21H17/07D21H17/09
Inventor 鲍启兵胡小云
Owner ANHUI JIANGWEI PRECISION IND
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