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Heat-storing and temperature-regulating fiber and preparation method thereof

A technology of heat storage, temperature adjustment and fiber, which is applied in fiber treatment, fiber chemical characteristics, wet spinning method, etc., can solve the problems of limiting heat transfer efficiency, etc., and achieve the effect of improving mechanical properties, good functionality, and good coating

Active Publication Date: 2015-12-02
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that the low thermal conductivity (~0.2W / mK) of traditional organic molecular phase change materials limits the thermal energy transfer efficiency

Method used

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  • Heat-storing and temperature-regulating fiber and preparation method thereof
  • Heat-storing and temperature-regulating fiber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The phase change material is a poly(styrene-co-maleic anhydride)-g-n-octadecyl alcohol / octadecyl graphene composite phase change material; the phase change material is obtained through the following method: first Octaalkylated graphene is uniformly dispersed in chloroform to obtain A, and the massfraction of octadecylated graphene in chloroform is 1wt%; Simultaneously, the number of side chain carbon atoms is eighteen poly(styrene-co- Maleic anhydride)-g-n-octadecanol is dissolved in tetrahydrofuran, and the massfraction of poly(styrene-co-maleic anhydride)-g-n-octadecanol in tetrahydrofuran is 10wt%, obtains B; Secondly, the A and B are mixed, and the solvent is evaporated to obtain the phase change material, wherein the mass fraction of octadecylated graphene in the phase change material is 0.5 wt%. The fiber-forming polymer is an acrylonitrile-vinylidene chloride (molar ratio is 85 / 15) copolymer (Mn=32,000);

[0037] Both the phase change material and the fiber-form...

Embodiment 2

[0041] The phase change material is a poly(styrene-co-maleic anhydride)-g-n-octadecyl alcohol / octadecyl graphene composite phase change material; the phase change material is obtained through the following method: first Octaalkylated graphene is uniformly dispersed in chloroform to obtain A, and the massfraction of octadecylated graphene in chloroform is 1wt%; Simultaneously, the number of side chain carbon atoms is eighteen poly(styrene-co- Maleic anhydride)-g-n-octadecanol is dissolved in tetrahydrofuran, and the massfraction of poly(styrene-co-maleic anhydride)-g-n-octadecanol in tetrahydrofuran is 10wt%, obtains B; Secondly, the A and B are mixed, and the solvent is evaporated to obtain the phase change material, wherein the mass fraction of octadecylated graphene in the phase change material is 2 wt%. The fiber-forming polymer is an acrylonitrile-vinylidene chloride (molar ratio is 85 / 15) copolymer (Mn=32,000);

[0042] Both the phase change material and the fiber-formin...

Embodiment 3

[0046] The phase change material is a poly(styrene-co-maleic anhydride)-g-n-octadecyl alcohol / octadecyl graphene composite phase change material; the phase change material is obtained through the following method: first Octaalkylated graphene is uniformly dispersed in chloroform to obtain A, and the massfraction of octadecylated graphene in chloroform is 1wt%; Simultaneously, the poly(styrene-co- Maleic anhydride)-g-n-octadecanol is dissolved in tetrahydrofuran, and the massfraction of poly(styrene-co-maleic anhydride)-g-n-octadecanol in tetrahydrofuran is 10wt%, obtains B; Secondly, the A and B are mixed, and the solvent is evaporated to obtain the phase change material, wherein the mass fraction of octadecylated graphene in the phase change material is 4wt%. The fiber-forming polymer is an acrylonitrile-vinylidene chloride (molar ratio is 85 / 15) copolymer (Mn=32,000);

[0047] Both the phase change material and the fiber-forming polymer are dried until the moisture content ...

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Abstract

The invention discloses a heat-storing and temperature-regulating fiber and a preparation method thereof. The heat-storing and temperature-regulating fiber is prepared from a phase-change material and fiber-forming polymer by a solution composite spinning method. The cross section of the heat-storing and temperature-regulating fiber is in the shape of an island or concentric circles; the mass fraction of the phase-change material is 20-60wt%; the mass fraction of the fiber-forming polymer in the fiber is 80-40wt%; and the sum of the mass fraction of the phase-change material and the mass fraction of the fiber-forming polymer is 100%. The phase-change material is obtained by respectively fusing or dissolving functionalized graphene and comb-like polymer, mixing to obtain solvent, and evaporating the solvent thoroughly. The preparation method comprises the step of preparing the heat-storing and temperature-regulating fiber by using the phase-change material and the fiber-forming polymer through conventional wet spinning. The method is simple and has an industrialization prospect. The prepared heat-storing and temperature-regulating fiber is high in heat conduction efficiency and good in heat-storing and temperature-regulating performance, has conductivity, and has a certain antistatic effect.

Description

technical field [0001] The invention relates to the field of functional fibers, in particular to a heat storage and temperature regulating fiber and a preparation method thereof. Background technique [0002] Heat storage and temperature regulating fiber is a kind of fiber with heat energy absorption and release function obtained by implanting phase change material into the fiber or coating on the surface of the fiber. In the heat storage and temperature adjustment fiber, the phase change material plays the role of heat storage and temperature adjustment. At present, polymer-based heat storage phase change materials have attracted widespread attention due to their excellent thermal properties and stable structures, among which phase change elements such as polyethylene glycol (PEG), fatty alcohols, fatty acids, and side chain alkyls are commonly used. for the preparation of polymeric energy storage materials. The study found that the low thermal conductivity (~0.2W / mK) of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/54D01F1/09D01D5/34D01D5/36D01D5/06
Inventor 石海峰刘伦涛王慧王海霞高亚辉张兴祥
Owner TIANJIN POLYTECHNIC UNIV
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