Phase change temperature control fiber, yarn and fabric and application thereof

Abstract

The invention provides a phase change temperature control fiber. The phase change temperature control fiber is characterized by comprising a microstructure fiber matrix and a phase change material, wherein the microstructure fiber matrix comprises three-dimensional communication holes, the phase change material fills the three-dimensional communication holes, and each three-dimensional communication hole is of a three-dimensional structure with two or more holes communicating with each other. Compared with the prior art, the phase change temperature control fiber has the following advantages:first, the filling loading capacity and cycling stability of the phase change material are improved through the fiber structure design; second, through fiber surface treatment and fiber internal doping technology, good water resistance and mechanical properties of the fiber are realized; finally, the phase change composite hydrophobic temperature control fiber provided by the invention has the functions of keeping warm and cooling in the aspect of temperature regulation and control; in the aspect of material selection, the universality is achieved, most of commercial fiber materials can be adopted, then the fiber is suitable for industrial amplification application, and meanwhile, different materials can be designed according to actual needs; and in the aspect of fabric forming, a phase change temperature control fabric can be directly woven by the phase-change fiber, and also can be woven after yarns are prepared.

Description

technical field [0001] The invention belongs to the technical field of intelligent temperature-controlling fibers, and in particular relates to a phase-change temperature-controlling fiber, yarn and fabric and applications thereof. Background technique [0002] The goal of personal thermal management technology is to only locally heat or cool the human body, maintaining personal comfort in an energy efficient manner, without wasting excess energy by heating or cooling the entire building space through the HVAC (heating, ventilation and air conditioning) system , and thus has received widespread attention. [0003] The combination of personal thermal management and wearable textiles is considered to be one of the most promising strategies for incorporating thermal regulation into people's daily lives. Today, there are several textiles that actively provide different levels of personal thermal management, such as: air / liquid cooling (CN110301696A, CN106174783A) and electrothe...

AI Technical Summary

Problems solved by technology

The microcapsule wet spinning method (Chinese patent: CN 110820068 A, CN106048761 A) has the problems of large pollution and complicated procedures in the preparation process; the hollow fiber filling method (Chinese patent: CN103710964 A) has the disadvantage that the phase change material is easy to leak; Surface coating method (such as: American Outlast company patents: US8404341 B2, US 2010 / 0015869 A1; Chinese patent: CN 207072156 U) has problems such as poor wear resistance of surface functional coating materials and easy to be affected by environmental humidity (not washable)

U.S. Outlast Company (Patent No.: US7666500 B2) and Chinese Patent (Patent No.: CN 101906670 B) disclose a spinning equipment and a preparation method of a melt-spun solid-liquid composite phase change fiber, in which the liquid phase change material is directly Stored in the fiber in the form of liquid, it will lead to the problem of poor cycle stability of the phase change composite fiber

The microcapsule composite spinning method (patent of Outlast Company of the United States: US 2017 / 01301 12 A1; Chinese patent: CN 109234825 A, CN 110820068 A, CN 106048761 A) is to add a certain amount of phase change material microcapsules to the spinning solution , to prepare fibers through spinneret extrusion, this method can effectively solve the shortcomings of phase change materials such as easy leakage, not resistant to water washing, poor cycle stability, etc., but there is a problem of low effective content of phase change materials

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