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Meta-aramid resin for precipitated fiber, precipitated fiber, aramid paper and synthesis method

A technology of precipitating fiber and synthesis method, which is applied in the direction of chemical characteristics of fibers, single-component synthetic polymer rayon, textiles and papermaking, etc., can solve the problems such as the insulation performance, thermal stability and mechanical strength of precipitating fibers need to be improved. , to meet the long-term safe and stable application, reduce viscosity, and improve the effect of dielectric strength

Active Publication Date: 2022-06-03
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the insulation properties, thermal stability and mechanical strength of the existing precipitated fibers need to be improved.

Method used

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  • Meta-aramid resin for precipitated fiber, precipitated fiber, aramid paper and synthesis method
  • Meta-aramid resin for precipitated fiber, precipitated fiber, aramid paper and synthesis method

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Experimental program
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preparation example Construction

[0031] The 1,1'-binaphthalene-2,2'-diamine added is the third monomer, and condensation reaction can occur to become a part of the main chain.

Embodiment 1

Embodiment 2

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Abstract

The invention discloses a meta-aramid fiber resin for precipitated fibers, precipitated fibers, aramid paper and a synthesis method. Under the protection of an inert gas, a part of isophthaloyl chloride is added in batches to the dissolved m-phenylenediamine and 1,1'-binaphthyl-2,2'-diamine in a polar solvent for precondensation; adding the remaining isophthaloyl chloride to the reaction system in batches, increasing the reaction temperature for polycondensation; A neutralizing agent is added to the reaction system to obtain a reaction product; nano-scale wollastonite is added to the reaction product to disperse evenly to obtain meta-aramid fiber resin. The present invention introduces the third monomer 1,1'-binaphthyl-2,2'-diamine into the aramid rigid chain system to reduce the viscosity of the final product system and effectively improve production efficiency. Adding nano-scale wollastonite to the precipitation resin can improve the dielectric strength, thermal stability and mechanical strength of the meta-aramid insulating paper, which can meet the needs of long-term safe and stable applications in high electric field environments.

Description

Meta-aramid resin for precipitation fiber, precipitation fiber, aramid paper and synthesis method technical field The invention belongs to polymer material field field, relate in particular to a kind of meta-aramid resin for precipitation fiber, precipitation fiber Fiber, aramid paper and method of synthesis. Background technique [0002] The meta-aramid insulating paper is mainly made of polymetaphenylene isophthalamide fibers. Compared with natural cellulose paper, Meta-aramid paper has more obvious advantages in thermal stability, mechanical properties and electrical properties, and can be used to a greater extent. To improve the safety and service life of electrical appliances, it has an irreplaceable important position in the field of high-grade heat-resistant insulation. With electricity The rapid development of grid high-voltage and ultra-ultra-high voltage power transmission and transformation technology has put forward more stringent conditions for the safe ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/32C08G69/04D01F6/90D01F1/10
CPCC08G69/32C08G69/04D01F6/905D01F1/10
Inventor 曹凯凯李忠良伍威宋志成袁锋易勇曹卓刘含茂
Owner ZHUZHOU TIMES NEW MATERIALS TECH