CN103410044A - Preparation method of polyacrylamide composite mica paper - Google Patents

Abstract

The invention provides a preparation method of polyacrylamide composite mica paper. The mica paper is prepared from the following raw materials in parts by weight: 120-130 parts of mica, 10-15 parts of glass fibers, 10-14 parts of polyester fibers, 2-4 parts of polyacrylamide, 4-5 parts of polyvinyl alcohol, 2-4 parts of nano diatomite, 0.2-0.5 part of 2-thiol benzimidazole, 5-7 parts of nano-zinc oxide, 1-2 parts of phenethyl phenol polyoxyethylene ether, 2-3 parts of sodium persulfate and a defined amount of water. Polyacrylamide not only can be used for obviously improving the surface adhesion of new pulp sheets in the mica paper production process and improving the tensile force during mica paper production so as to reduce paper break during manufacturing paper with pulp but also maintains the advantages of natural mica, such as breakdown resistance, high insulativity and heat insulation. The mica paper prepared by the preparation method has good electric strength and tensile strength.

Description

The manufacture method of polyacrylamide combined mica paper

Technical field

The present invention relates to the mica paper production technical field, particularly a kind of manufacture method of polyacrylamide combined mica paper.

Background technology

Mica is a kind of laminar silicic acid salt mineral of Nature creating, the characteristic that has good physical property and electrical resistance and still keep above performance under the condition of high temperature, it has chemical inertness and low flammability completely, the most important thing is that it has anti-high voltage, corona-resistant and radiation-resistant characteristic.

Mica paper is to take fractus master slice (muscovite, phlogopite, artificial mica synthesis) to be raw material, with chemical pulping or hydraulic slurrying, copy into paper roll under the slower speed of a motor vehicle of cylinder mould machine, cut into again roll web or sheet paper, mica paper has kept the premium properties of natural mica, and even thickness, the dielectric strength fluctuation range is little, corona inception voltage is high and stable; The voltage characteristic of its dielectric loss is much more stable than the mica splitting insulation, and thermal conductivity is good.

But it is single to produce at present mica paper technique, adopt fecula or ripe powder production, electrical strength and the TENSILE STRENGTH of mica paper are undesirable, need the new production technology of research.

Summary of the invention

The manufacture method that the purpose of this invention is to provide a kind of polyacrylamide combined mica paper.

Technical scheme of the present invention is as follows:

A kind of manufacture method of polyacrylamide combined mica paper is characterized in that: the raw material by following weight portion is made: mica 120-130, glass fibre 10-15, polyster fibre 10-14, polyacrylamide 2-4, polyvinyl alcohol 4-5, nano diatomite 2-4,2-mercapto benzimidazole 0.2-0.5, nano zine oxide 5-7, phenethyl phenol polyethenoxy ether 1-2, sodium peroxydisulfate 2-3, water are appropriate;

Comprise the following steps:

(1) by mica 700-800 ℃ of lower high-temperature calcination, calcine 1-2 hour the mica grog;

(2) grog is added to the Silane coupling agent KH550 that is equivalent to grog weight 3-4%, the sodium phosphate trimer of 2-3%, pulverize, obtain 50-120 order powder;

(3) by grog powder and other surplus stock mixing and water adding, to moisture be 40-50%, be heated to 80-90 ℃, stirring reaction 1-2 hour;

(4) step (3) slurry is diluted to clinker content 3-4%, adds the brown alundum powder that is equivalent to grog powder weight 4-5%, dispersed with stirring is even, the cylinder copy paper;

(5) dry: gained paper is dried to moisture 0.2 ~ 0.5% and is got product in drying cylinder

Polyacrylamide of the present invention can significantly improve newborn lodicule surface adhesion force in the mica paper production process, pulling force while improving mica paper production, disconnected paper while manufacturing paper with pulp with minimizing, kept again natural mica to resist wearing, high insulation, the advantage such as heat insulation, mica paper electrical strength and TENSILE STRENGTH that the present invention makes are good.

The specific embodiment

A kind of manufacture method of polyacrylamide combined mica paper, by the raw material of following weight portion (kilogram), made: mica 120, glass fibre 10, polyster fibre 14, polyacrylamide 4, polyvinyl alcohol 4, nano diatomite 4,2-mercapto benzimidazole 0.2, nano zine oxide 7, phenethyl phenol polyethenoxy ether 2, sodium peroxydisulfate 2-3, water are appropriate;

Comprise the following steps:

(1) by mica 700-800 ℃ of lower high-temperature calcination, calcine 1-2 hour the mica grog;

(2) grog is added to the Silane coupling agent KH550 that is equivalent to grog weight 4%, 2% sodium phosphate trimer, pulverize, obtain 50-120 order powder;

(3) by grog powder and other surplus stock mixing and water adding, to moisture be 40-50%, be heated to 80-90 ℃, stirring reaction 1-2 hour;

(4) step (3) slurry is diluted to clinker content 3-4%, adds the brown alundum powder that is equivalent to grog powder weight 5%, dispersed with stirring is even, the cylinder copy paper;

(5) dry: gained paper is dried to moisture 0.2 ~ 0.5% and is got product in drying cylinder.

The mica paper that the present invention makes, TENSILE STRENGTH are 2KN/m, breakdown voltage 42KV/mm.

Claims (1)

1. the manufacture method of a polyacrylamide combined mica paper, it is characterized in that: the raw material by following weight portion is made: mica 120-130, glass fibre 10-15, polyster fibre 10-14, polyacrylamide 2-4, polyvinyl alcohol 4-5, nano diatomite 2-4,2-mercapto benzimidazole 0.2-0.5, nano zine oxide 5-7, phenethyl phenol polyethenoxy ether 1-2, sodium peroxydisulfate 2-3, water are appropriate;

Comprise the following steps:

(1) by mica 700-800 ℃ of lower high-temperature calcination, calcine 1-2 hour the mica grog;

(2) grog is added to the Silane coupling agent KH550 that is equivalent to grog weight 3-4%, the sodium phosphate trimer of 2-3%, pulverize, obtain 50-120 order powder;

(3) by grog powder and other surplus stock mixing and water adding, to moisture be 40-50%, be heated to 80-90 ℃, stirring reaction 1-2 hour;

(4) step (3) slurry is diluted to clinker content 3-4%, adds the brown alundum powder that is equivalent to grog powder weight 4-5%, dispersed with stirring is even, the cylinder copy paper;

(5) dry: gained paper is dried to moisture 0.2 ~ 0.5% and is got product in drying cylinder.