A kind of cool feeling nylon 6 staple fiber and preparation method thereof

Abstract

The invention relates to a cool-feeling nylon 6 staple fiber and a preparation method thereof. The method is as follows: cool-feeling nylon 6 slices are spun to obtain cool-feeling nylon 6 short fibers, and the cool-feeling nylon 6 is made of a mixture successively passed through a cool-feeling functional powder The surface chain growth reaction, ring-opening pre-condensation reaction and final polycondensation reaction; the mixture is mainly composed of cool functional powder coated with catalyst on the surface, phase change material, caprolactam and water; the surface chain of cool functional powder The growth reaction refers to the reaction in which the caprolactam enriched on the surface of the cool-feeling functional powder is polymerized to form a linear molecular chain under the action of a catalyst; the Qmax of the prepared cool-feeling nylon 6 staple fiber is 0.15-0.35W / cm 2 , it takes 30 to 40 seconds to reach equilibrium after contacting the human body. The preparation method of the present invention has few side reactions, fast reaction rate and high efficiency, and the prepared cool-feeling nylon 6 short fiber can keep cool feel continuously at a relatively high temperature, and has high popularization value.

Description

technical field [0001] The invention belongs to the field of nylon preparation, and relates to cool-feeling nylon 6 staple fiber and a preparation method thereof. Background technique [0002] Nylon fiber refers to a polymer whose main chain contains polar amide groups (-CONH-). Nylon can be obtained by ring-opening polymerization of caprolactam, or by polycondensation of diamine and dibasic acid. Among them, nylon fiber mainly refers to Nylon 6 (PA6) is a kind of polymer with excellent performance and wide application. [0003] Along with the diversified demand for clothing fiber products, people are paying more and more attention to the development of new nylon differentiated fiber materials. New nylon differentiated fiber materials include new nylon prepared from new monomers and co-nylon esters that are copolymerized and modified from existing nylon. Through differential modification, researchers have differentially applied some properties that people need daily, such ...

AI Technical Summary

Problems solved by technology

However, the cool fiber experience that has been developed so far is still insufficient, and there are still some problems in the preparation of cool fiber, which are mainly reflected in the following aspects: 1) the problem that the coolness of the touch is not long; At the beginning of textile use, because the temperature was not high at that time, it did feel cool to the touch, but as the use time increased and the temperature rose sharply, the cool feeling of the product disappeared; 2) The problem of poor air permeability; Having a cool feeling does not mean that the fiber itself has good breathability and moisture absorption and perspiration effects. To make the fiber feel really cool, not only must the material be extremely cool, but it must also meet the actual needs of the human body for heat dissipation in summer; 3) In order to pursue coolness, researchers need to modify fiber products, which will more or less affect other properties of fibers, such as mechanics, electrical conductivity or UV resistance, etc.