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Phase change energy storage heat conduction material and preparation process thereof

A heat-conducting material and phase-change energy storage technology, applied in the field of heat-conducting materials, can solve the problems of non-restoration, material failure, poor product toughness and mechanical strength, etc., and achieve the effect of strong stability

Active Publication Date: 2022-07-01
SUZHOU HI TECH ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional phase-change energy storage materials are mainly paraffin. Taking phase-change paraffin as an example, there may be the following problems: when the product temperature is lower than the phase-change point, the toughness and mechanical strength of the product are poor; the product temperature is higher than the phase-change point. After the change point, the product melts and flows. If thermal conductive fillers such as alumina, aluminum hydroxide, aluminum nitride, boron nitride and other fillers are added to the system, the paraffin will separate from the fillers and cannot return to its original state after cooling down, resulting in material failure.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0026] The preparation process of the phase-change energy storage thermally conductive material of the present invention may include the following steps:

[0027] The liquid silicone rubber, the zeolite molecular sieve, the phase change paraffin and the spherical boron nitride are uniformly mixed to obtain an intermediate product.

[0028] The above-mentioned steps may specifically be as follows: stirring the liquid silicone rubber, the zeolite molecular sieve, the phase-change paraffin wax and the spherical boron nitride uniformly at a temperature of 55-65° C. to obtain an intermediate product.

[0029] A catalyst is added to the intermediate product, and a pre-product is obtained after the reaction, and the phase-change energy storage and heat-conducting material is obtained after the pre-product is cooled.

[0030] Wherein, the catalyst may be a platinum catalyst. Specifically, the platinum catalyst can be PC12 of 3000ppm Shanghai Neutron Star Chemical. The mass ratio of ...

Embodiment 1

[0034] Stir 80g of RH-G7-1011, 30g of zeolite molecular sieve, 150g of PCM-A-44H, 150g of R1090, 40g of GBN-60 with D50=60μm and 160g of GBN-60 with D50=115μm at 55°C. Then add 0.5g of PC12, mix evenly, heat up to 130°C, then react for 1 hour, cover both sides with PET release film, press with a hot roller to make a 200*200*2.0mm sample, cool to room temperature to obtain a phase Variable energy thermal conductivity material.

Embodiment 2

[0036] Stir 120g of RH-G7-1011, 25g of zeolite molecular sieve, 120g of PCM-A-44H, 180g of R1090, 40g of GBN-60 with D50=65μm and 160g of GBN-60 with D50=125μm at 55°C. Then add 0.5g of PC12, mix evenly, heat up to 130°C, then react for 1 hour, cover both sides with PET release film, press with a hot roller to make a 200*200*2.0mm sample, cool to room temperature to obtain a phase Variable energy thermal conductivity material.

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PUM

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Abstract

The invention discloses a phase-change energy-storage heat-conduction material and a preparation process thereof, and the phase-change energy-storage heat-conduction material comprises the following raw material components in parts by weight: 8-32 parts of liquid silicone rubber, 2-10 parts of zeolite molecular sieve, 30-50 parts of phase-change paraffin and 20-30 parts of spherical boron nitride. Wherein the phase change paraffin comprises thermoplastic resin containing vinyl and thermoplastic hydrogenated resin. The phase change energy storage heat conduction material has the advantages of certain toughness, mechanical strength and high stability.

Description

technical field [0001] The invention relates to the field of thermally conductive materials, in particular to a phase-change energy storage thermally conductive material and a preparation process thereof. Background technique [0002] The traditional phase change energy storage materials are mainly paraffin, taking the phase change temperature at the phase change paraffin as an example, which may have the following problems: when the product temperature is lower than the phase change point, the product toughness and mechanical strength are very poor; the product temperature is higher than the phase change point. After the change point, the product melts and flows. If there are thermal conductive fillers such as alumina, aluminum hydroxide, aluminum nitride, boron nitride and other fillers added to the system, the paraffin will separate from the filler, and it will not return to its original state after cooling, resulting in material failure. . [0003] The information discl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/02C08L83/04C08K7/24C08K7/18C09K5/06C09K5/14
CPCC08L101/02C08L83/04C09K5/14C09K5/063C08L2201/08C08K2201/005C08K2201/014C08K7/24C08K7/18Y02E60/14
Inventor 汪义方金天辉
Owner SUZHOU HI TECH ELECTRONICS CO LTD
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