Waterproof insulating vulcanized paper, and preparation method thereof

A technology of waterproof insulation and steel paper, which is applied in the field of papermaking, can solve the problems of poor dispersion of water-repellent agents and the inability to effectively improve the waterproof effect of the outer surface of paper, so as to increase cross-linking strength, be suitable for large-scale production, and improve tensile strength The effect of intensity

Active Publication Date: 2017-11-17
杭州特种纸业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent directly adds a water-resistant agent to the pulp to improve the waterproofness of the paper. Although it can improve the waterproof effect of the steel paper to a certain extent, since the main material of the paper itself is cellulose, the water-resistant agent in the paper Poor dispersion; and the waterproof effect of paper mainly depends on the waterproof performance of its outer surface
However, directly adding water-repellent agent to the paper cannot effectively improve the waterproof effect of the outer surface of the paper.

Method used

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  • Waterproof insulating vulcanized paper, and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] A waterproof insulating steel paper, which is made of 8 layers of base paper glued together. It is prepared from the following raw materials in parts by weight: 120 parts of wood pulp, 30 parts of cotton pulp, 2 parts of carboxymethyl cellulose, 350 parts of waterproof impregnated emulsion, 300 parts of swelling gelling solution, and 13 parts of cellulose air-phase gel particles , 7 parts of modified fish bone meal, 1 part of ethylene glycol diglycidyl ether, 5 parts of fish maw extract gel.

[0032] Wherein, the solid content of the wood pulp and cotton pulp is 30wt%.

[0033] The waterproof impregnation emulsion is composed of polyethylene wax 6wt%, methyl siloxane 8wt%, emulsifier 1wt%, ethanol 35wt% and the balance of water.

[0034] The swelling and gelling solution is a zinc chloride solution with a concentration of 15 wt%.

[0035]The preparation method of the cellulose air-phase gel particles is as follows: the wood powder is pressure-impregnated in a pressuri...

Embodiment 2

[0044] A waterproof insulating steel paper, which is formed by gelling and bonding 12 layers of base paper; it is prepared from the following raw materials in parts by weight: 110 parts of wood pulp, 20 parts of cotton pulp, 1 part of carboxymethyl cellulose, and 300 parts of waterproof impregnated emulsion 200 parts of swelling and gelling solution, 10 parts of cellulose gas-phase gel particles, 6 parts of modified fish bone powder, 0.5 parts of ethylene glycol diglycidyl ether, and 4 parts of fish maw extract gel.

[0045] Wherein, the solid content of the wood pulp and cotton pulp is 40wt%.

[0046] The waterproof dipping emulsion is composed of 4wt% polyethylene wax, 5wt% methyl siloxane, 0.5wt% emulsifier, 30wt% ethanol and the rest of water.

[0047] The swelling and gelling solution is a zinc chloride solution with a concentration of 20 wt%.

[0048] The preparation method of the cellulose air-phase gel particles is as follows: the wood powder is pressure-impregnated i...

Embodiment 3

[0057] A waterproof insulating steel paper, which is formed by gelling and bonding 7 layers of base paper; it is made of the following raw materials in parts by weight: 110 parts of wood pulp, 60 parts of cotton pulp, 5 parts of carboxymethyl cellulose, and 450 parts of waterproof impregnated emulsion 400 parts of swelling and gelling solution, 14 parts of cellulose gas-phase gel particles, 6 parts of modified fish bone meal, 1.5 parts of ethylene glycol diglycidyl ether, and 6 parts of fish maw extract gel.

[0058] Wherein, the solid content of the wood pulp and cotton pulp is 20wt%.

[0059] 130 parts of wood pulp, 40 parts of cotton pulp, 3 parts of carboxymethyl cellulose, 400 parts of waterproof impregnated emulsion, 200-400 parts of swelling and gelling liquid, 15 parts of cellulose air-phase gel particles, 8 parts of modified fish bone powder, 0.5-1.5 parts of ethylene glycol diglycidyl ether, 4-6 parts of fish maw extract gel.

[0060] The waterproof impregnation emu...

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Abstract

The invention belongs to the field of papermaking, and discloses a waterproof insulating vulcanized paper, and a preparation method thereof. The waterproof insulating vulcanized paper is prepared from a plurality of layers of raw paper via gluing, and is prepared from, by weight, 110 to 130 parts of wood pulp, 20 to 40 parts of cotton pulp, 1 to 3 parts of carboxymethyl cellulose, 300 to 400 parts of a waterproof impregnation emulsion, 200 to 400 parts of a swelling gelling liquid, 10 to 15 parts of cellulose gas phase gel particle, 6 to 8 parts of modified fishbone dust, 0.5 to 1.5 parts of ethylene glycol diglycidyl ether, and 4 to 6 parts of swim bladder extracted glue. The waterproof insulating vulcanized paper is obtained via dipping in the waterproof impregnation emulsion, the external surface of the waterproof insulating vulcanized paper possesses excellent water resistance and relatively high strength; the raw materials are green, and are friendly to the environment; the preparation method is simple and reasonable, and is suitable for large scale production.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a waterproof insulating steel paper and a preparation method thereof. Background technique [0002] Insulating steel paper has the characteristics of hard paper, high dielectric strength, high elasticity, good wear resistance, good heat resistance and good insulation. And it can be cut, drilled, crushed, punched, planed, bent, milled, etc. It is mainly used for heat insulation insulators of various household appliances, various electrical arc extinguishers, slot wedges for electronic rotors, and insulating gaskets , parts, etc. In some specific fields, in addition to the good insulation of insulating steel paper, it is also required to have good water resistance, so as to meet its use requirements or improve its own service life. [0003] The Chinese patent with the application number CN201010107148.7 discloses a high-strength insulating steel cardboard and its manufacturing method. ...

Claims

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Application Information

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IPC IPC(8): D21H15/10D21H11/12D21H11/00D21H21/18D21H21/16D21H19/20D21H19/10D21H17/26D21H17/67D21H17/21D21H17/11D21H27/12H01B3/52
CPCD21H11/00D21H11/12D21H15/10D21H17/11D21H17/21D21H17/26D21H17/675D21H19/10D21H19/20D21H21/16D21H21/18D21H27/00H01B3/52
Inventor 吴琼华王建业吴安波
Owner 杭州特种纸业有限公司
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