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A kind of foamed TPU composite phase change energy storage material and preparation method thereof

A technology of phase change energy storage materials and energy storage materials, which is applied in the field of energy recovery and utilization, can solve problems such as low toughness, low thermal conductivity, and low energy storage rate, and achieve the effect of expanding types and functions

Active Publication Date: 2019-01-25
SHAANXI SCI TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a foamed TPU composite phase change energy storage material, which solves the problems of low toughness, low thermal conductivity and low energy storage rate of existing organic polymer phase change materials

Method used

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  • A kind of foamed TPU composite phase change energy storage material and preparation method thereof
  • A kind of foamed TPU composite phase change energy storage material and preparation method thereof
  • A kind of foamed TPU composite phase change energy storage material and preparation method thereof

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Embodiment 1

[0035]The invention discloses a foamed TPU composite phase change energy storage material, which comprises 50% phase change energy storage material powder and 50% TPU. The phase change energy storage material powder includes 80% PEG, 12% EG, and 8% AC foaming agent.

[0036] A kind of preparation method of the TPU composite phase-change energy storage material of the present invention, such as figure 1 As shown, first prepare the powder material of the organic polymer composite phase change energy storage material with high thermal conductivity and high phase change enthalpy that can be expanded, and mix 80% of PEG, 12% of EG, and 8% of AC foaming agent Pour it into an internal mixer at 80°C. After the PEG is completely melted, keep the temperature constant and then banbury and mix for 5 minutes; finally cool and grind to obtain the powder of the composite phase change energy storage material. Then 50% of the composite phase change energy storage material powder and 50% of th...

Embodiment 2

[0038] The invention discloses a foamed TPU composite phase change energy storage material, which comprises 60% phase change energy storage material powder and 40% TPU. The powder material of the phase change energy storage material includes 90% of paraffin, 9% of ACG, and 1% of AC foaming agent.

[0039] A method for preparing a foamed TPU composite phase-change energy storage material in the present invention, firstly prepare the powder material of a foamable organic polymer composite phase-change energy storage material with high thermal conductivity and high phase-change enthalpy, and mix 90% Pour 1% paraffin wax, 9% ACG, and 1% AC foaming agent into a 70°C internal mixer. After the paraffin wax is completely melted, keep a constant temperature and then banbury and mix for 15 minutes; finally cool and grind to obtain a composite phase change energy storage powder material. Then 60% of the composite phase change energy storage material powder and 40% of fully dry TPU are p...

Embodiment 3

[0041] The invention discloses a foamed TPU composite phase change energy storage material, which comprises 70% phase change energy storage material powder and 30% TPU. The phase change energy storage material powder includes 50% hexadecane, 40% SiO 2 , 10% AC foaming agent.

[0042] A preparation method of a foamed TPU composite phase change energy storage material of the present invention, first prepares the powder material of a foamable high thermal conductivity high phase change enthalpy organic polymer composite phase change energy storage material, and mixes 50% Hexadecane, 40% SiO 2 1. Pour 10% AC foaming agent into a 50°C internal mixer. After the hexadecane is completely melted, keep the constant temperature and then banbury and mix for 20 minutes; finally cool and grind to obtain the powder of the composite phase change energy storage material. Then 70% of the composite phase change energy storage material powder and 30% of the fully dry TPU are premixed in a high ...

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Abstract

The invention discloses a foamed TPU composite phase-changing energy storage material. The foamed TPU composite phase-changing energy storage material is prepared from phase-changing energy storage material powder and TPU, wherein the phase-changing energy storage material powder accounts for 50 to 80 percent in mass fraction, the TPU accounts for 20 to 50 percent in mass fraction, and the sum of the mass fraction of various components is 100 percent. The invention also discloses a preparation method of the TPU composite phase-changing energy storage material. According to the TPU composite phase-changing energy storage material and the preparation method thereof, a phase-changing main material and a foaming agent are packaged by utilizing high-heat-conductivity porous inorganic filler, the composite phase-changing energy storage material powder is obtained by virtue of melting and mixing and has high heat conductivity and foamability, and the powder is mixed with the TPU material with low-temperature toughness by utilizing a continuous melting and blending process, so that the problems of the existing organic macromolecular phase-changing material such as low toughness, low heat conductivity and low energy storage rate can be solved.

Description

technical field [0001] The invention belongs to the technical field of energy recovery and utilization, and specifically relates to a foamed TPU composite phase-change energy storage material, and also relates to a preparation method of the above-mentioned TPU composite phase-change energy storage material. Background technique [0002] Driven by the rapid development of global industry in recent decades, energy consumption has become faster and faster. People's demand for energy is also increasing, and the energy crisis has become an important factor restricting the development of human society. At the same time, the extensive use of non-renewable fossil fuels has not only led to the depletion of global fossil energy reserves, but also brought a series of global environmental problems, such as the greenhouse effect and smog. It is worth noting that in the process of energy use, transmission and transfer, a considerable part of energy dissipates in the form of heat loss, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L71/02C08L91/06C08K7/24C08K3/36C08K5/01C08J9/10C09K5/14C09K5/06
CPCC08J9/103C08J2203/04C08J2375/04C08K3/36C08K5/01C08K7/24C08L75/04C08L91/06C08L2203/14C09K5/06C09K5/14C08L71/02
Inventor 贾仕奎于德梅王忠朱艳陈立贵付蕾
Owner SHAANXI SCI TECH UNIV
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