Production method for moisture-absorbing sweat-releasing high-strength high-modulus polyethylene

Abstract

The invention discloses a production method for moisture-absorbing sweat-releasing high-strength high-modulus polyethylene. The production method for the moisture-absorbing sweat-releasing high-strength high-modulus polyethylene comprises the following steps: S100, preparing a raw material; S200, putting the raw material into a twin-screw extruder; S300, after the raw material is put into the twin-screw extruder, enabling the raw material to pass through a spinning box, and extruding the raw material from *-shaped slots of a spinning plate; S400, performing water cooling on the extruded polyethylene fibres, and extracting; and S500, drying, heating and drawing the extracted polyethylene fibres; and after the raw material is extruded from the spinning plate, extruding the polyethylene fibreraw material into * shapes, wherein the ultrafine high-strength polyethylene fibres with the *-shaped cross sections are provided with eight grooves, are large in specific surface area, can guide moisture and are breathable; the specific surface area of a single fibre of 0.4 to 0.5 dpfp is 2 to 3 times that of the single fibre of 2 dfp; and a good capillary effect can be achieved by the spaces among the fibres, so that the moisture absorbing property of the fibres is enhanced. Therefore, the ultrafine high-strength polyethylene fibres with the *-shaped cross sections has good moisture absorbing property and sweat releasing property when the ultrafine high-strength polyethylene fibres with the *-shaped cross sections are applied in the fields of home textile and underwear.

Description

technical field The invention belongs to the technical field of polyethylene fibers, and in particular relates to a production method of moisture-absorbing and sweat-wicking high-strength and high-modulus polyethylene. Background technique Polyethylene fiber is a fiber material obtained by spinning polyethylene by melt spinning, including short fibers and filaments. The mechanical strength of this fiber can be adjusted through the spinning process parameters, and the wet strength and elongation The same state, polyethylene fiber has the advantages of high strength, low density, good insulation, etc., but the low heat carrying capacity and cold creep limit its application, mainly used in the production of various industrial textiles, especially filter materials, tents Cloth and mesh belt and other products. High-strength polyethylene fiber is currently widely used in the fields of labor protection, home textiles, ropes, civil construction, home textiles, and clothing. It is...

AI Technical Summary

Problems solved by technology

The invention provides a production method of high-strength and high-modulus polyethylene for moisture absorption and perspiration, which aims to solve the problem that the moisture regain of the fiber is almost zero, resulting in very poor moisture absorption and perspiration, which affects the comfort

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