High-strength support filter paper for tubular films and preparation method of high-strength support filter paper for tubular films

Abstract

The invention relates to high-strength support filter paper for tubular films and a preparation method of the high-strength support filter paper for the tubular films. The high-strength support filter paper is prepared from the following components: polyester fibers accounting for 20-30% in parts by weight, and functional fibers, wherein the functional fibers comprise special-shaped fibers accounting for 40-80% in parts by weight and bicomponent fibers accounting for 8-50% in parts by weight. The invention further discloses the preparation method of the high-strength support filter paper for the tubular films. Chemical-fiber laying nets are formed into paper in a hot-rolling manner by utilizing the thermal plasticity of fibers; crossed entanglement is utilized, so that the defect that the longitudinal and transverse tension for combing the laying nets is poor is overcome; the modern technique and the medium-high technique of hot rolling are utilized to enable the surface of filter paper to be smooth, so that the flatness requirements of scraped films are satisfied, the stability and the reliability of products are greatly improved, the technical requirements for tubular films, such as high strength, high pressure, and corrosion resistance, can be satisfied, and the preparation method provides a powerful support for sewage treatment, sea water desalination, medicine extraction and juice extraction.

Description

technical field [0001] The invention relates to a basic material for membrane filtration, in particular to a tubular membrane-supported high-strength filter paper and a preparation method thereof. Background technique [0002] Tubular membrane filter is the basic material of membrane filtration and an indispensable part of membrane support and attachment. Tubular membrane filtration is a high-precision filter device for liquor purification, fruit juice purification, sewage treatment and reclaimed water recycling. Tubular membrane filter is an important part of tubular membrane filtration. It has very high requirements for membrane support materials. Its requirements for filtration accuracy, filtration capacity, and service life are closely related to filter paper. Therefore, filter paper support must be used for membrane filters. At the same time, it meets the requirements of multiple indicators, including: 1) filter paper is required to be insoluble in water and other synth...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a tubular membrane-supported high-strength filter paper and a preparation method thereof, which solves the problem of comprehensive parameters among various indicators of high-strength filter paper currently existing. Optimization, optimization of web forming process, optimization of hot rolling and calendering roll surface, shaft crown, temperature, speed and pressure, etc., so as to complete the solution of high-strength filter paper