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Two-component heat storage encapsulating material and preparation method thereof

A potting material and two-component technology, applied in the field of two-component heat storage potting materials and their preparation, can solve the problems of high cost, easy overflow, good fluidity, etc., and achieve the increase of phase change enthalpy, cost reduction, The effect of performance improvement

Inactive Publication Date: 2019-11-05
张立强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing electronic potting glue does not have the function of heat storage and temperature control, and the cost is relatively high
[0003] Phase change energy storage technology is a technology that can store energy in the form of phase change latent heat at high density. At present, phase change materials are usually added to potting materials, but phase change materials have good fluidity when heated. It is easy to overflow, resulting in oil leakage. The usual performance is that a layer of oil appears on the surface of the product, causing defects and failing to meet customer quality requirements.

Method used

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  • Two-component heat storage encapsulating material and preparation method thereof
  • Two-component heat storage encapsulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Two-component heat storage potting material, including the following components by weight: Component A: 20 parts of acrylic resin, 20 parts of phase change material and 0.2 part of stannous octoate; Component B: 20 ​​parts of polyurethane curing agent, phase 20 parts of change material, the weight ratio of A component and B component is 1:1, wherein, the phase change material is graphite adsorption phase change energy storage powder, and the graphite adsorption phase change energy storage powder includes the following Each component in parts by weight: 100 parts of paraffin and 5 parts of worm-like expanded graphite, the expansion rate of the worm-like expanded graphite is 500ml / g, the particle size is 100 mesh, the expansion multiple is 400 times, and the bulk density is 0.2g / cm 3 .

Embodiment 2

[0039] Two-component heat storage potting material, including the following components by weight: Component A: 70 parts of acrylic resin, 70 parts of phase change material and 0.6 part of stannous octoate; Component B: 70 parts of polyurethane curing agent, phase 70 parts of change material, the weight ratio of component A and component B is 1:1, wherein, the phase change material is graphite adsorption phase change energy storage powder, wherein graphite adsorption phase change energy storage powder includes the following Each component in parts by weight: 100 parts of paraffin and 9 parts of worm-like expanded graphite, the expansion rate of the worm-like expanded graphite is 600ml / g, the particle size is 200 mesh, the expansion multiple is 600 times, and the bulk density is 0.5g / cm 3 .

Embodiment 3

[0041]Two-component heat storage potting material, including the following components by weight: Component A: 20 parts of polyurethane resin, 20 parts of phase change material and 0.2 part of stannous octoate; Component B: 20 ​​parts of polyurethane curing agent, phase 20 parts of change material, the weight ratio of component A and component B is 1:1, wherein, the phase change material is graphite adsorption phase change energy storage powder, wherein graphite adsorption phase change energy storage powder includes the following Each component in parts by weight: 100 parts of fatty acid and 6 parts of worm-like expanded graphite, the expansion rate of the worm-like expanded graphite is 100ml / g, the particle size is 150 mesh, the expansion multiple is 500 times, and the bulk density is 0.3g / cm 3 .

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Abstract

The invention discloses a two-component heat storage encapsulating material. The material is prepared from, by weight, a component A comprising 20-70 parts of resin and 20-70 parts of a phase-change material, and a component B comprising 20-70 parts of a resin curing agent and 20-70 parts of a phase-change material, wherein the weight ratio of the component A to the component B is 1:1, and the phase-change material in the components A and B is graphite adsorbed phase-change energy storage powder or aerogel adsorbed phase-change energy storage powder; the properties of the two-component heat storage encapsulating material obtained through the above formula are that the specific heat capacity (J / (g.K)) is greater than or equal to 2.0, the enthalpy of phase change (J / g), namely a heat absorption value is about 30-180, the phase change temperature is 25-90 DEG C, the specific weight (g / cc) is 0.8-1.8, the surface drying time is 15-25 minutes, the primary curing time is 1-2 hours, the complete curing time is longer than or equal to 24 hours, and the shear strength (aluminum / aluminum) is greater than or equal to 4 MPA; latent heat of phase change is released through the phase-change material, and the two-component heat storage encapsulating material prepared through the above formula and a preparation method has excellent heat storage and temperature control performance.

Description

technical field [0001] The invention relates to the technical field of potting materials and preparation methods thereof, in particular to two-component heat storage potting materials and preparation methods thereof. Background technique [0002] Electronic potting glue is liquid before it is cured and has fluidity. The viscosity of the glue varies according to the material, performance, and production process of the product. Only when the potting glue is completely cured can its use value be realized. After curing, it can play the role of waterproof, moisture-proof, dust-proof, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance, and shock resistance. However, the existing electronic potting adhesives do not have the function of heat storage and temperature control, and the cost is relatively high. [0003] Phase change energy storage technology is a technology that can store energy in the form of phase change latent heat at high dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L91/06C08K9/12C08K5/09C08L75/04C08L23/06C08L23/12C08L63/00C08L83/04C08L83/05C09K5/06
CPCC08K5/09C08K9/12C08L23/06C08L23/12C08L33/04C08L63/00C08L75/04C08L83/04C08L91/06C08L2205/025C08L2205/03C08L2205/035C09K5/06
Inventor 张立强张秋兵杨小玉
Owner 张立强
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