Monofilament-shaped ultrahigh molecular weight polyethylene fiber and continuous preparation method thereof

Abstract

The invention discloses a monofilament-shaped ultrahigh molecular weight polyethylene fiber and a continuous preparation method thereof. The monofilament-shaped ultrahigh molecular weight polyethylene fiber is formed by adhering 50-570 ultrahigh molecular weight polyethylene fibers to form a whole body in parallel, and a matrix resin layer is coated on an outer wall of the monofilament-shaped ultrahigh molecular weight polyethylene fiber. The continuous preparation method comprises the following steps of: (1) material selection: selecting 50-570 ultrahigh molecular weight polyethylene fibers; (2) performing fiber surface treatment; (3) twisting the fibers to form a single strand; (4) uniformly tensioning the fibers, and removing the static electricity; (5) sizing treatment; and (6) performing heat setting to form the monofilament-shaped ultrahigh molecular weight polyethylene fiber, and finally, winding into coils. According to the monofilament-shaped ultrahigh molecular weight polyethylene fiber and the continuous preparation method thereof, the wear resistance of the fiber is greatly improved on the premise of basically not influencing the strong performance of the fiber, the service life of the fiber can be greatly prolonged, complex special equipment is not required, and the construction cost is low; and moreover, the monofilament-shaped ultrahigh molecular weight polyethylene fiber can be widely applied to the fields of industry, national defense, sports, oceans and the like.

Description

[0001] technical field [0002] The invention relates to the technical field of preparation of ultra-high molecular weight polyethylene fibers, in particular to a monofilament ultra-high molecular weight polyethylene fiber and a continuous preparation method thereof. Background technique [0003] Polyethylene fibers and rope materials are widely used in the rope net industry, ocean and inland waters because of their good tensile strength, impact resistance, flexibility, and good fishing performance such as small specific gravity, strong water filtration, and smooth surface. Trawling, net cages, seine breeding and fishing line production. [0004] The traditional polyethylene monofilament is made of high-density polyethylene, which is melted and extruded by a plastic extruder, sprayed out through a spinneret, cooled to obtain as-spun filaments, and then thermally stretched at a certain temperature to make the as-spun filaments. . The Chinese patent application "High-tem...

AI Technical Summary

Problems solved by technology

However, although the above-mentioned ultra-high molecular weight polyethylene monofilament solves the problem of poor bundling of ultra-high molecular weight polyethylene fibers, the effect on physical properties, especially fiber breaking strength is not very satisfactory.

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