Ultra-high-molecular-weight polyethylene monofilament filter cloth and preparation method thereof

Abstract

The invention discloses ultra-high-molecular-weight polyethylene monofilament filter cloth and a preparation method thereof. The filter cloth is in a single-layer structure or a double-layer structure, wherein warps of the filter cloth with the single-layer structure are woven by one monofilament and wefts are woven by another monofilament; the diameter of each monofilament is 0.07mm-0.2mm; the arraying ratio of exterior and interior warps to exterior and interior wefts of the filter cloth with the double-layer structure is 4 to 1; a tying method is a tying weft method; the warps of exterior tissues and interior tissues are woven by one monofilament and the wefts are woven by another monofilament; the diameter of the monofilament of each exterior tissue is 0.07mm-0.2mm and the tensile strength is more than 1100MPa; and the diameter of the monofilament of each tissue is 0.6mm and the tensile strength is more than 1000MPa. The monofilaments are woven by ultra-high molecular weight polyethylene through a melt spinning method, and are obtained by heat shaping and calendering treatment in sequence after weaving. The filter cloth disclosed by the invention has the advantages of high strength, good surface performance, long service life and the like; and the preparation process is simple and the cost is low.

Description

technical field [0001] The invention relates to an industrial filter cloth and a preparation method thereof, in particular to an ultra-high molecular weight polyethylene monofilament filter cloth and a preparation method thereof. Background technique [0002] Filtration textiles are an important branch of industrial textiles, and their output is about 10% of industrial textiles. [0003] At present, nylon, polyester and polypropylene monofilament filter cloths are the main filter materials used in metal ore dressing, sludge dewatering, comprehensive water pollution control, power plant desulfurization and denitrification, papermaking, fine chemical industry and other fields. In actual use, industrial filter cloths of these materials have more or less defects such as non-wear resistance, severe surface crystallization, easy hardening, high-viscosity materials are not easy to peel off, poor regeneration performance, and short service life, which seriously affect the production...

AI Technical Summary

Problems solved by technology

In actual use, industrial filter cloths of these materials have more or less defects such as non-wear resistance, severe surface crystallization, easy hardening, high-viscosity materials are not easy to peel off, poor regeneration performance, and short service life, which seriously affect the production process. filter effect

[0004] For example, in the mining field, due to the finer solid particles and higher ion content in water, the crystallization problem on the surface of the filter cloth is becoming more and more serious, resulting in high filtration resistance of the filter cloth, difficulty in peeling off the filter cake, and loss of the filter cloth. The replacement cycle is getting shorter and shorter, and even needs to be replaced every day, which not only seriously affects production efficiency, but also causes a substantial increase in production costs

Images