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Nano heat-storing and temperature-regulating fiber with rapid heat absorption and release and preparation method thereof

A heat storage and temperature regulation, heat absorption and release technology, which is applied in the directions of heat exchange materials, fiber chemical characteristics, chemical instruments and methods, etc., can solve problems such as restricting the development and application of organic phase change materials, and achieve excellent structural stability, The effect of ensuring structural stability and shape stereotypes, fast adjustment ability

Active Publication Date: 2020-12-08
江苏普泰克新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, comb-like polymer phase change materials have gradually replaced inorganic phase change materials in practical applications because of their high heat storage, good processability, thermal stability and heat setting properties, and the heat storage and release efficiency is extremely high. Greatly limit the development and application of organic phase change materials in heat storage and temperature regulation fibers

Method used

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  • Nano heat-storing and temperature-regulating fiber with rapid heat absorption and release and preparation method thereof
  • Nano heat-storing and temperature-regulating fiber with rapid heat absorption and release and preparation method thereof
  • Nano heat-storing and temperature-regulating fiber with rapid heat absorption and release and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix polyacrylonitrile acrylic acid-g-n-octadecyl alcohol and graphene with a mass ratio of 95:5 into DMF to prepare a spinning solution with a mass concentration of 20%, and perform electrospinning under the following conditions to obtain nano-scale heat storage Warm fiber;

[0038] The electrospinning conditions are as follows: spinning voltage is 15kV, receiving distance is 20cm, propulsion rate is 10ml / min, nanofibers are collected by drum, and the drum speed is 800r / min; the ambient temperature is 25°C, and the humidity is 65%.

Embodiment 2

[0040] Mix polyacrylonitrile acrylic acid-g-n-hexacosanol and graphene with a mass ratio of 95:5 into DMF to prepare a spinning solution with a mass concentration of 20%, and electrospin under the following conditions to obtain nano heat storage temperature regulating fiber;

[0041] The electrospinning conditions are as follows: spinning voltage is 15kV, receiving distance is 20cm, propulsion rate is 10ml / min, nanofibers are collected by drum, and the drum speed is 800r / min; the ambient temperature is 25°C, and the humidity is 65%.

Embodiment 3

[0043] Mix polyacrylonitrile acrylic acid-g-tetracontanol and graphene with a mass ratio of 90:10 into DMF to prepare a spinning solution with a mass concentration of 20%, and perform electrospinning under the following conditions to obtain nano-scale heat storage Warm fiber;

[0044] The electrospinning conditions are as follows: spinning voltage is 15kV, receiving distance is 20cm, propulsion rate is 10ml / min, nanofibers are collected by drum, and the drum speed is 800r / min; the ambient temperature is 25°C, and the humidity is 65%.

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Abstract

The invention discloses a thermo-regulated nanofiber with rapid heat absorption and release functions and a preparation method of the thermo-regulated nanofiber. The fiber comprises a comblike polymerphase-change material and heat conductive particles, wherein the heat conductive particles are graphene, nano-silver, nano-titania, nano-silicon or a mixture of the substances; the comblike polymer phase-change material is selected from the following three groups: 1, polyacrylonitrile acrylic acid grafted with n-alkanol or polyethylene glycol; 2, polyacrylonitrile acrylic acid grafted with n-alkanol with two different molecular weights, polyacrylonitrile acrylic acid grafted with polyethylene glycol with two different molecular weights, or polyacrylonitrile acrylic acid grafted with n-alkanoland polyethylene glycol simultaneously; 3, two polyacrylonitrile acrylic acid-g-n-alkanols with different molecular weights, a mixture of two polyacrylonitrile acrylic acid-g-polyethylene glycols, ora mixture of polyacrylonitrile acrylic acid-g-n-alkanols and polyacrylonitrile acrylic acid-g-polyethylene glycols. According to the preparation method of the thermo-regulated nanofiber, the raw materials are mixed with a solvent, and then electrospinning is performed. The fiber has the characteristics of good setting performance, high thermal stability and faster heat absorption and release.

Description

technical field [0001] The invention relates to the field of functional fibers, in particular to a nano heat-storing and temperature-regulating fiber that absorbs and releases heat quickly and a preparation method thereof. Background technique [0002] Heat storage and temperature regulating fiber is a kind of fiber with heat storage and heat release properties obtained by implanting phase change materials into fibers, coating on the surface of fibers, or directly spinning into fibers. In recent years, due to energy shortage, how to effectively use and save energy has become one of the urgent problems to be solved. As the most effective and environmentally friendly material for heat energy recovery, phase change materials are increasingly used in a wide range of fields. Among them, organic polymer energy storage phase change materials have attracted much attention due to their high enthalpy, stable structure and strong processability. Compared with traditional fibers, ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/54D01F1/10C09K5/06
CPCC09K5/063D01F1/10D01F6/54
Inventor 石海峰许红星王海霞李靖葛婧
Owner 江苏普泰克新材料科技有限公司
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