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A phase-change thermal storage particle with modified resin as shell material and its preparation process

A technology of phase change heat storage and preparation technology, which is applied in the field of building energy-saving materials, can solve the problems of phase change materials such as long thermal response time, low heat transfer performance, and insufficient heat storage capacity, so as to shorten thermal response time and increase heat transfer Thermal area, effect of improving heat transfer performance

Active Publication Date: 2020-12-18
常州港华燃气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual phase change heat storage building materials simply mix phase change materials and building materials in proportion without encapsulation, which causes leakage problems easily during the process of heat absorption and melting of phase change materials. Thermal performance materials, so that after mixing phase change materials, the thermal response time of phase change materials is too long, it is not enough for heat storage capacity, and loses its meaning of existence

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A phase-change thermal storage particle with modified resin as the shell material, the mass ratio of the core material to the shell material is 1:3.

[0015] The core material is capric acid, and the shell material is composed of the following mass percentages: 80% of photosensitive prepolymer, 10% of active diluent, 7% of photosensitizer, and 3% of heat-conducting material. The photosensitive prepolymer is epoxy acrylic resin, the reactive diluent is pentaerythritol triacrylate (PETA), the photosensitizer is benzoin dimethyl ether, and the heat conducting material is graphite.

[0016] Its preparation method:

[0017] (1), take the core material according to the mass ratio, heat it to a liquid state, inject it into a spherical particle mold, and wait for it to be demoulded after cooling and solidifying for use;

[0018] (2), weigh each component of the shell material by mass ratio, mix and stir evenly for later use;

[0019] (3), the granular solid core material prep...

Embodiment 2

[0023] A phase-change thermal storage particle with modified resin as the shell material, the mass ratio of the core material to the shell material is 1:25.

[0024] The core material is capric acid, and the shell material is composed of the following mass percentages: 70% of photosensitive prepolymer, 20% of active diluent, 7% of photosensitizer, and 3% of heat-conducting material. The photosensitive prepolymer is polyester acrylate, the reactive diluent is pentaerythritol triacrylate (PETA), the photosensitizer is α-hydroxyisopropylbenzophenone, and the heat conducting material is graphite.

[0025] Its preparation method:

[0026] (1), take the core material according to the mass ratio, heat it to a liquid state, inject it into a spherical particle mold, and wait for it to be demoulded after cooling and solidifying for use;

[0027] (2), weigh each component of the shell material by mass ratio, mix and stir evenly for later use;

[0028] (3), the granular solid core mater...

Embodiment 3

[0032] A phase-change thermal storage particle with modified resin as the shell material, the mass ratio of the core material to the shell material is 1:10.

[0033] The core material is capric acid, and the shell material is composed of the following mass percentages: 75% of photosensitive prepolymer, 18% of reactive diluent, 5% of photosensitizer, and 2% of heat-conducting material. The photosensitive prepolymer is polyurethane acrylic acid, the reactive diluent is polyethylene glycol diacrylate (PEGDA), the photosensitizer is benzoin dimethyl ether, and the heat conducting material is graphite.

[0034] Its preparation method:

[0035] (1), take the core material according to the mass ratio, heat it to a liquid state, inject it into a spherical particle mold, and wait for it to be demoulded after cooling and solidifying for use;

[0036] (2), weigh each component of the shell material by mass ratio, mix and stir evenly for later use;

[0037] (3), the granular solid core ...

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Abstract

The invention relates to phase change heat storage granules with a modified resin as a shell material and a preparation process of the phase change heat storage granules. The phase change heat storagegranules comprise a shell material and a core material, wherein the core material is arranged inside the shell material; the shell material consists of a light sensitive prepolymer, an active diluent, a light sensitive agent and a heat conduction material; the mass percentages of the components are as follows: 70-80% of the light sensitive prepolymer, 10-20% of the active diluent, 1-10% of the light sensitive agent, and 1-3% of the heat conduction material; the core material is saturated fatty acid of 10-14C. As the modified resin is adopted as the shell material of the phase change heat storage granules, the core material wrapped by the shell material is not leaked off in the heat absorption / release process, meanwhile, due to adoption of a granular phase change heat storage material, theheat exchange area is greatly increased, and due to adoption of the modified resin as the shell material, the overall heat conduction property is improved, so that the heat response time of a phase change material is shortened, and the heat storage capability of the phase change material is utilized to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of building energy-saving materials, in particular to a phase-change thermal storage particle with modified resin as a shell material and a preparation process thereof. Background technique [0002] Among all kinds of energy consumption, building energy consumption accounts for a large part, so energy-saving materials have a lot of room for development in the future. The usual phase change heat storage building materials simply mix phase change materials and building materials in proportion without encapsulation, which causes leakage problems easily during the process of heat absorption and melting of phase change materials. The thermal performance material makes the thermal response time of the phase change material too long after being blended with the phase change material, which does not reach the heat storage capacity and loses the meaning of its existence. Contents of the invention [0003] The tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06C09K5/14C08F283/10C08F283/01C08F222/20C08F299/06C08F2/50C08K3/04
CPCC08F2/50C08F283/01C08F283/105C08F299/065C08K3/04C09K5/063C09K5/14C08F222/104
Inventor 庄孙歧洪斌杨健诸葛伟高峰葛亚威
Owner 常州港华燃气有限公司
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