Method for preparing aromatic polyamide fiber paper base material by electrospinning technology

Abstract

The invention discloses a method for preparing an aromatic polyamide fiber paper base material by an electrospinning technology and belongs to the preparing field of aramid fiber papers. The method for preparing the aromatic polyamide fiber paper comprises the steps that (1), an aromatic polyamide fiber spinning solution is prepared; (2), the aromatic polyamide fiber spinning solution is sprayed under high-pressure spinning to form an aromatic polyamide fiber film; and (3), the aromatic polyamide fiber film is subjected to water bath, drying, then high temperature press polish treatment and hot press molding, so that the aromatic polyamide fiber paper base material is formed. Aromatic polyamide fiber paper base materials prepared by traditional paper making methods have the problems that the fiber dispersing performance is poor, the forming strength is low, the paper uniformity is bad, the hot press performance can not be guaranteed, the requirement for papermaking performance is strict, so that the large-scale development of the aromatic polyamide fiber paper base materials is restricted. However, according to the aromatic polyamide fiber paper base material prepared by the method of spinning the aromatic polyamide fiber spinning solution by high-pressure multiple nozzles, the operation is simple and easy to implement, and the prepared aromatic polyamide fiber paper base material has excellent performance and more stable nature.

Description

Technical field [0001] The invention belongs to the field of preparation of aramid paper, and particularly relates to a method for preparing aramid fiber paper-based materials by using electrostatic spinning technology. Background technique [0002] With the development of material science and the advancement of papermaking technology, in addition to traditional plant fibers, paper-making raw materials have begun to use other organic synthetic fibers to make paper-based materials. Aramid fiber has high strength, high temperature resistance, chemical corrosion resistance, flame retardant and excellent electrical insulation properties, and has excellent wet processing properties and reinforcement properties, so it can be used to manufacture special functional materials. Aramid fiber paper, also called poly-m-aramid paper, is a special functional material made of pure aramid fiber (poly-m-phenylene isophthalamide), suitable for harsh environments such as high temperature and high hu...

AI Technical Summary

Problems solved by technology

[0003] The traditional papermaking method adopts the methods of mixing aramid fiber slurry, inclined wire (rotary wire) forming, pressing, drying, and high-temperature calendering to prepare aramid fiber paper. The prepared aramid fiber paper has poor fiber dispersion and poor forming strength. Problems such as low paper quality, poor paper uniformity, difficulty in guaranteeing hot-pressing performance, and strict requirements for papermaking performance have restricted its large-scale development.