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Manufacturing method for gel-doped clinker-powder mica paper

A manufacturing method and technology of mica paper, applied in the field of mica paper production, can solve the problems of single mica paper process, unsatisfactory electrical strength and tensile strength of mica paper, etc. Effect

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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Examples

Experimental program
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Embodiment Construction

[0015] A method for manufacturing glue-mixed cooked powder mica paper, which is made of the following raw materials in parts by weight (kg): mica 120, gelatin 4, polyvinyl alcohol 5, polyvinylpyrrolidone 2, borax 2, aluminum hydroxide 3, boric acid 1 , sodium persulfate 1, grape seed oil 1, acrylic acid emulsion 4, 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 3% of clinker weight and 3% sodium tripolyphosphate to the clinker, and grind it into powder to obtain 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 aluminum nitride powder equivalent to 4-5% of the clinker powder weight, stir and disper...

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Abstract

The invention discloses a manufacturing method for gel-doped clinker-powder mica paper. The gel-doped clinker-powder mica paper is manufactured from the following raw materials in parts by weight: 120-140 parts of mica, 3-4 parts of gelatine, 5-6 parts of polyvinyl alcohol, 2-3 parts of polyvinylpyrrolidone, 1-2 parts of borax, 2-3 parts of aluminium hydroxide, 1-2 parts of boric acid, 1-2 parts of sodium persulfate, 1-2 parts of grape seed oil, 3-4 parts of acrylic emulsion, and an appropriate amount of water. According to the manufacturing method disclosed by the invention, the surface adhesive force of newly-generated slurry sheets in a production process for the mica paper can be remarkably improved via the gelatine, the polyvinyl alcohol 5 and the polyvinylpyrrolidone, and the tensile force during production for the mica paper can be increased, so as to reduce paper breakage during papermaking; the mica paper manufactured by the manufacturing method disclosed by the invention is good in electric strength and tensile strength.

Description

technical field [0001] The invention relates to the technical field of mica paper production, in particular to a method for manufacturing mica paper mixed with glue and cooked powder. 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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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04C04B14/20
Inventor 江豪纪沿海
Owner ANHUI JIANGWEI PRECISION IND
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