Wear-proof elastic fiber and preparation method thereof

Abstract

The invention relates to a wear-proof elastic fiber and a preparation method of the wear-proof elastic fiber. The preparation method comprises the steps of extruding mixture melt from a spinneret orifice, and performing slow cooling and forced cooling to form the wear-proof elastic fiber. The mixture melt comprises more than two components; all of the components are thermoplastic elastomers, havethe same molecular weight and are formed by alternating arrangement of soft sections and hard sections; fundamental structural units of the soft sections and fundamental structural units of the hard sections are identical; all of the components have different contents of the soft sections; a maximum mass content of the soft sections is 50-88.9wt%; a minimum mass content of the soft sections is 7.7-46.2wt%; a temperature of the slow cooling is T + / - 5 DEG C; a temperature of the forced cooling is 15-25 DEG C; and the components in the prepared wear-proof elastic fiber are arrayed from an innerlayer to an outer layer of the wear-proof elastic fiber in an ascending order of the mass contents of the soft sections. The method is simple; the components of the prepared fiber are high in compatibility; the wear resistance is improved; at the same time, high mechanical properties are ensured; and the fiber has very good application prospects.

Description

technical field [0001] The invention belongs to the technical field of elastic fibers, in particular to a wear-resistant elastic fiber and a preparation method thereof. Background technique [0002] Because thermoplastic elastic fiber is prepared by melt spinning, there is no problem of solvent use and recycling, soft hand feeling, excellent chlorine resistance and heat resistance, it is deeply loved by consumers, and its proportion in the elastic fiber market is increasing year by year. [0003] It is well known that woven / knitted fabrics containing elastic fibers or products prepared in other forms have good elasticity and shape retention. However, during long-term use with large deformations, there are often severe wear and deformation of some parts, such as Knee joints, elbow joints, underarms and thighs, etc., causing problems such as protrusions, aliasing, fluffing and even damage on the surface of the clothing, especially when used in sportswear, shoe materials, outdo...

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