A kind of isolation material and its preparation method and application

A technology of isolation material and isolation agent, which can be used in the fields of synthetic cellulose/non-cellulose material pulp/paper, textile and papermaking, fiber raw material processing, etc., and can solve the problem of not producing a large amount of gas.

Active Publication Date: 2022-02-08
CHINA NAT PULP & PAPER RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, the release agent mixed in the stainless steel layer cannot produce a large amount of gas, especially oxygen, when it is hot-rolled and pyrolyzed. It is necessary to limit the content of additives in the composite insulation material, which sets a limit for the production of insulation materials.

Method used

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  • A kind of isolation material and its preparation method and application

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preparation example Construction

[0046] The present invention also provides a preparation method for the isolation material of the above-mentioned technical solution, comprising the following steps:

[0047] Provide mixed fiber dissolving liquid;

[0048] Mixing the mixed fiber disentangling liquid, release agent and latex to obtain the first mixture;

[0049] mixing the first mixture, flocculant and defoamer to obtain a second mixture;

[0050] diluting the second mixture to obtain a slurry;

[0051] Papermaking is performed on the slurry to obtain the insulating material.

[0052] In the present invention, the components in the preparation method are consistent with the components of the isolation material in the above technical solution, and will not be repeated here.

[0053] The invention provides a mixed fiber dissolving liquid. In the present invention, the mass concentration of the mixed fiber disintegrating liquid is preferably 0.5-2%, more preferably 0.7-1.7%, and still more preferably 1-1.5%. In...

Embodiment 1

[0061] In terms of parts by mass, the isolation material components are:

[0062] 78.1 parts of release agent, obtained by mixing 325 mesh magnesium oxide and 800 mesh magnesium oxide according to the mass ratio of 1:2;

[0063] 6.3 parts of mixed fiber, obtained by mixing coniferous wood fiber and glass wool at a mass ratio of 7:5;

[0064] 14.7 parts of latex, obtained by mixing styrene-butadiene latex and nitrile latex at a mass ratio of 4:3;

[0065] 0.1 part of flocculant, obtained by mixing polyaluminum chloride (PAC) and cationic polyacrylamide (CPAM) at a mass ratio of 1:1;

[0066] 0.05 part of defoamer, JF-05B type silicone defoamer, purchased from Beijing Shi Aode Rui Technology Co., Ltd.

[0067] The preparation method of the isolation material is:

[0068] Using water as the diluent, dilute the latex to a mass concentration of 10%, dilute the flocculant to a mass concentration of 1%, and dilute the defoamer to a mass concentration of 1%, and set aside;

[0069...

Embodiment 2

[0076] In terms of parts by mass, the isolation material components are:

[0077] 76.6 parts of release agent, obtained by mixing 325 mesh magnesia and 800 mesh alumina according to the mass ratio of 1:2;

[0078] 7.5 parts of mixed fiber, obtained by mixing coniferous wood fiber and glass wool at a mass ratio of 1:1;

[0079] 15.3 parts of latex, obtained by mixing styrene-butadiene latex and nitrile latex at a mass ratio of 1:1;

[0080] 0.1 part of flocculant, obtained by mixing polyaluminum chloride (PAC) and cationic polyacrylamide (CPAM) according to the mass ratio of 2:1;

[0081] 0.05 part of defoamer, JF-05B type silicone defoamer, purchased from Beijing Shi Aode Rui Technology Co., Ltd.

[0082] The preparation method of the isolation material is:

[0083] Using water as the diluent, dilute the latex to a mass concentration of 10%, dilute the flocculant to a mass concentration of 1%, and dilute the defoamer to a mass concentration of 1%, and set aside;

[0084] A...

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Abstract

The invention belongs to the technical field of composite materials, and in particular relates to an isolation material and its preparation method and application. The invention provides a kind of isolation material, including components in parts by mass: 60-80 parts of isolation agent; 6-15 parts of mixed fiber; 14-20 parts of latex; 0.02-0.1 part of flocculant; ~0.1 parts. In the present invention, the isolation material is designed as a paper-based material through the joint action of each component, and the isolation agent is evenly distributed in the isolation material, which satisfies the uniform distribution of the isolation agent and fundamentally avoids the dust caused by the isolation agent in the form of dust. Secondary pollution. Experimental results show that the release agent content in the release material provided by the invention can reach 80wt.%, and the release agent content is high; when it is directly spread between stainless steels, the distribution is uniform and there is no "explosion" phenomenon, and it has a good isolation effect.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to an insulating material and its preparation method and application. Background technique [0002] Stainless steel-carbon steel clad plate (hereinafter collectively referred to as stainless steel clad plate) is a metal composite material with special properties that is made of stainless steel and carbon steel in a certain way. In the production process of stainless steel clad plate, it is necessary to follow the sequence of carbon steel-stainless steel-stainless steel-carbon steel, superimposed and welded together from top to bottom to form a composite billet before entering the hot rolling section. At high temperature, the contact surface of the stainless steel layer will be mutually Adhesion, subsequent inseparability. Therefore, it is necessary to add a release agent between the contact surfaces of the stainless steel layer of the composite billet. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/00D21H13/40D21H17/67D21H17/37D21H21/02D21H21/12D21F11/02
CPCD21H11/00D21H13/40D21H17/675D21H17/37D21H21/12D21H21/02D21F11/02
Inventor 江骁雅王建国刘文杨春政陈雪峰毛宗久周德光王普孙启昆王华鹏孔艳荣王根矶徐永先杨冀王志勇郜丙兴袁立勇焦晓磊郭延爽郑同雷贾啸林王东董博伟曾玉杰王莹
Owner CHINA NAT PULP & PAPER RES INST CO LTD
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