Phase change microspheres, intelligent temperature-adapting fiber and preparation methods thereof

A technology of phase change microspheres and intelligent temperature regulation, which is applied in the field of fibers, can solve the problems that the phase change performance has not been improved, the thermal conductivity of materials cannot be improved, and it is difficult to ensure the effective coating of phase change materials, so as to achieve thermal response and fast Effect of Thermal Response, High Mechanical Properties and Thermal Conductivity

Inactive Publication Date: 2019-01-18
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods have great defects. The former only improves the overall thermal conductivity of the material, but the phase change performance has not been improved. The latter uses modified graphen

Method used

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  • Phase change microspheres, intelligent temperature-adapting fiber and preparation methods thereof
  • Phase change microspheres, intelligent temperature-adapting fiber and preparation methods thereof
  • Phase change microspheres, intelligent temperature-adapting fiber and preparation methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] (1) Add nanometer far-infrared powder to the single-layer graphene oxide dispersion liquid with a size of 1-50 microns and mix evenly. The mass ratio of graphene oxide and nanometer far-infrared powder is 1:1.

[0032] (2) The dispersion liquid obtained in step (1) is dried by atomization drying method to obtain graphene oxide / nano far-infrared powder composite microspheres, the carbon-oxygen ratio of graphene oxide is 3, and the temperature of atomization drying is 130 ℃.

[0033] (3) Put the graphene oxide / nano-far-infrared powder composite microspheres obtained in step (2) in a tube furnace, raise the temperature to 1300°C at 10°C / min, and keep warm for 1h to obtain graphene far-infrared hollow microspheres.

[0034] (4) Mix 100 parts by mass of eicosane and 5 parts by mass of graphene hollow microspheres, heat to 40° C. to melt the eicosane, then fully stir for 30 minutes, leave to stand for vacuum degassing for 1 hour, and then press filter at 50° C. After cooling...

Embodiment 2

[0038] (1) Add nanometer far-infrared powder to the single-layer graphene oxide dispersion liquid with a size of 20-30 microns and mix evenly. The mass ratio of graphene oxide and nanometer far-infrared powder is 1:1.

[0039] (2) The dispersion liquid obtained in step (1) is dried by atomization drying method to obtain graphene oxide / nano far-infrared powder composite microspheres, the carbon-oxygen ratio of graphene oxide is 3, and the temperature of atomization drying is 130 ℃.

[0040] (3) Put the graphene oxide / nano-far-infrared powder composite microspheres obtained in step (2) in a tube furnace, raise the temperature to 1300°C at 10°C / min, and keep it warm for 1h to obtain graphene far-infrared hollow microspheres.

[0041] (4) Mix 100 parts by mass of eicosane and 5 parts by mass of graphene far-infrared hollow microspheres, heat to 40°C to melt the eicosane, then fully stir for 60 minutes, leave to stand for vacuum degassing for 1 hour, and then press at 50°C Filter ...

Embodiment 3

[0045] (1) Add nanometer far-infrared powder to the single-layer graphene oxide dispersion liquid with a size of 42-50 microns and mix evenly. The mass ratio of graphene oxide and nanometer far-infrared powder is 1:1.

[0046] (2) The dispersion liquid obtained in step (1) is dried by atomization drying method to obtain graphene oxide / nano far-infrared powder composite microspheres, the carbon-oxygen ratio of graphene oxide is 3, and the temperature of atomization drying is 130 ℃.

[0047] (3) Put the graphene oxide / nano-far-infrared powder composite microspheres obtained in step (2) in a tube furnace, raise the temperature to 1300°C at 10°C / min, and keep warm for 1h to obtain graphene far-infrared hollow microspheres.

[0048] (4) Mix 100 parts by mass of eicosane and 5 parts by mass of graphene far-infrared hollow microspheres, heat to 40°C to melt the eicosane, then fully stir for 60 minutes, leave to stand for vacuum degassing for 1 hour, and then press at 50°C Filter and...

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Abstract

The invention discloses phase change microspheres, intelligent temperature-adapting fiber and preparation methods thereof. Firstly, graphene far-infrared microspheres adopting mesoporous structures are prepared, then a phase change material is melted and fully the phase change material is infiltrated into cavities of the graphene microspheres to obtain the phase change microspheres adopting core-shell structures. The excess phase change material on the surfaces of the phase change microspheres is removed through pressure filtration, and after cooling, melt blending and spinning are performed on the phase change microspheres and spun-grade polymer chips to obtain composite fiber with an intelligent temperature-adjusting function. Through use of the graphene hollow spheres for wrapping the phase change material, leakage of the phase change material during using is greatly reduced, so that the service life can be significantly prolonged; high heat conductivity of graphene can effectivelypromote heat exchange between the environment and fabric and between the fabric and the surface of a human body, so that the heat response speed of heat storage fabric can be increased; the graphene and nanometer far-infrared powder have a high-efficiency far-infrared radiation function, so that the temperature of the body surface can be increased, and blood circulation is promoted.

Description

technical field [0001] The invention belongs to the field of fibers, and in particular relates to a phase-change microsphere, an intelligent temperature-regulating fiber and a preparation method thereof. Background technique [0002] Phase change materials are a class of materials that have the potential to absorb or release a large amount of heat during the phase change process. During the phase change, although the temperature remains unchanged, it is accompanied by a large amount of heat release or absorption. Phase-change temperature-regulating fiber is a kind of fiber with heat storage and temperature-regulating function prepared by doping phase-change temperature-regulating materials into fibers. Phase-change temperature-regulating fibers can use the phase-change materials in them when the temperature of the external environment changes. During the phase transition process, heat exchange is performed with the external environment to realize the function of fiber temper...

Claims

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Application Information

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IPC IPC(8): D01F1/10D01F6/90
CPCD01F1/10D01F6/90
Inventor 陈琛韩燚高超
Owner HANGZHOU GAOXI TECH CO LTD
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