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Method for preparing intelligent temperature regulation fiber by melt spinning process

A technology of intelligent temperature regulation and melt spinning, which is applied in rayon manufacturing, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of easy degradation or deterioration of phase change materials, loss of energy storage and temperature regulation functions, etc., and achieve high The effect of efficiency and fast response efficiency

Active Publication Date: 2013-08-14
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The melt processing temperature of conventional polyolefin, polyester, polyamide and other polymers is higher than 200°C, and the pressure exceeds 21MPa. Phase change materials are prone to degradation or deterioration in this environment, resulting in the loss of energy storage and temperature adjustment functions.

Method used

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  • Method for preparing intelligent temperature regulation fiber by melt spinning process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Firstly, graphene, copper sulfide and polyethylene glycol with a mass ratio of 1:1:1000 were fully blended at 60°C for 2 hours to obtain a ternary composite phase change medium (CuGEG); secondly, a mass ratio of 5 : 95 CuGEG and polypropylene (PP) slices were blended and granulated by twin-screw at 190°C to obtain composite slices; finally, after the composite slices were dried, and the moisture content was controlled at 50-100ppm, the energy storage adjustment was obtained by melt spinning. warm fiber. figure 1 A schematic diagram of the preparation of temperature-regulated fibers is given.

Embodiment 2

[0027] Firstly, graphene, copper sulfide and polyethylene glycol with a mass ratio of 50:50:1000 were fully blended at 80°C for 4 hours to obtain a ternary composite phase change medium (CuGEG); secondly, a mass ratio of 40 : 60 CuGEG and polyethylene terephthalate (PET) slices were mixed and granulated by twin-screw at 280°C to obtain composite slices; finally, after the composite slices were dried, the water content was controlled at 50-100ppm, and melted Spinning to obtain energy storage temperature-regulating fibers.

Embodiment 3

[0029] First, using graphene, copper sulfide and polyethylene glycol acrylate (Mn≈1000) with a mass ratio of 5:5:1000, adding N,N'-methylene glycol acrylate with a mole fraction of 20% Based on bisacrylamide as a crosslinking agent, CuGEG was obtained by solution radical polymerization; secondly, CuGEG and polybutylene terephthalate (PBT) with a mass ratio of 30:70 were granulated by twin-screw blending at 290°C Composite slices are obtained; finally, after the composite slices are dried, and the water content is controlled at 50-100 ppm, the energy storage and temperature-regulating fibers are obtained by melt spinning.

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Abstract

The invention relates to a method for preparing intelligent temperature regulation fiber by a melt spinning process. The method comprises the following steps of: (1) preparing a ternary composite phase change medium from grapheme, copper sulfide and polyethylene glycol by a blending process; or preparing a ternary composite phase change medium from grapheme, copper sulfide and polyethylene glycol acrylate by a three-dimensional network process; and (2) preparing a spinning-level slice from the ternary composite phase change medium and a polymer matrix by blending, drying, and finally spinning to obtain intelligent temperature regulation fiber by a melt spinning process. The method provided by the invention is simple to operate; and the intelligent temperature regulation fiber can absorb far and near-infrared light and visible light, and has the characteristics of fast response and high efficiency as well as broad application prospects.

Description

technical field [0001] The invention belongs to the field of preparation of intelligent temperature-regulating fibers, in particular to a method for preparing intelligent temperature-regulating fibers by melt spinning. Background technique [0002] With the progress of society and the development of people's needs, the fiber textile industry is gradually changing to the direction of functionalization, perceptualization and intelligence, and the varieties tend to be functional and intelligent integration. Heat storage and temperature regulating fiber is one of the larger comfort fibers. The temperature-regulating fiber is a functional fiber developed by utilizing the characteristics of releasing or absorbing latent heat and keeping the temperature constant during the phase transition process of substances. It has a two-way automatic temperature-regulating function. The application fields of temperature-regulating fibers are relatively extensive. Countries such as Europe and ...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F6/92D01F6/90D01F1/10
Inventor 朱美芳相恒学许文菊王世超陈少华成艳华闻晓霜李妍
Owner DONGHUA UNIV
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