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Preparation of low-melting-point phase-change energy storage material

A phase-change energy storage material and raw material technology, applied in the field of new material research and development, can solve the problems of high risk factor, low thermal conductivity, low energy storage density, etc., to overcome the small thermal conductivity, high phase change enthalpy, and production costs low effect

Inactive Publication Date: 2019-04-30
贾琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also has the characteristics of small thermal conductivity, easy volatilization, low energy storage density, and high risk factor.
Composite materials may absorb the advantages of both, but the process is generally more complicated and costly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The phase change energy storage material of this embodiment, its raw material contains the following components by weight: 30 weight parts of sodium sulfite; 10 weight parts of A151 vinyltriethoxysilane; 50 weight parts of crystal wax (molecular weight 2000); water 10 Parts by weight: 4 parts by weight of m-phenylenediamine; 0.5 parts by weight of dibenzoyl peroxide; 0.5 parts by weight of dibutyltin diacetate.

[0025] Preparation method: 50 parts by weight of crystalline wax (molecular weight 2000), 10 parts by weight of hardener A151 vinyl triethoxysilane, 0.5 parts by weight of graft initiator DCP dibenzoyl peroxide, graft catalyst diacetate diacetate Mix under the action of 0.5 parts by weight of butyltin, and mix at 90° C. for 6 hours under ultraviolet light irradiation to prepare a crystalline wax prepolymer. Then, the formed crystalline wax prepolymer was mixed with 30 parts by weight of sodium sulfite (10 parts of water) at 120°C in a high-speed stirrer, and th...

Embodiment 2

[0027] The phase change energy storage material of this embodiment, its raw material contains the following components by weight: 40 parts by weight of sodium sulfite; 5 parts by weight of hardener A171 vinyl trimethoxy silicon; 40 parts by weight of crystal wax (molecular weight 3000); water 15 parts by weight; 3 parts by weight of diaminodiphenylmethane; 0.8 parts by weight of dibenzoyl peroxide; 0.8 parts by weight of dibutyltin diacetate.

[0028] Preparation method: 40 parts by weight of crystalline wax (molecular weight 3000), 5 parts by weight of hardener A171 vinyl trimethoxy silicon, 0.8 parts by weight of graft initiator DCP dibenzoyl peroxide, graft catalyst diacetate diacetate Mix under the action of 0.8 parts by weight of butyltin, and mix at 90° C. for 6 hours under ultraviolet light irradiation to prepare a crystalline wax prepolymer. Then the formed crystalline wax prepolymer was stirred and mixed with 40 parts by weight of sodium sulfite (15 parts of water) at...

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PUM

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Abstract

Preparation of low-melting-point phase-change energy storage material. The invention belongs to the field of new material research and development, and particularly relates to a phase change energy storage material as well as preparation and application thereof. The phase change energy storage material is prepared from the following components in parts by weight: 10-50 parts of sodium sulfite; 5-20 parts of a hardening agent; 40-70 parts of crystalline wax; 10-25 parts of water; 1-4 parts of a curing agent; 0.5-1.0 part of dibenzoyl peroxide and 0.5-1.0 part of dibutyltin diacetate. The phasechange energy storage material has the advantages of being suitable for phase change temperature, relatively large in heat conductivity coefficient and high in energy storage density.

Description

technical field [0001] The invention belongs to the field of research and development of new materials, and in particular relates to a phase change energy storage material and a preparation method thereof. Background technique [0002] Phase change energy storage materials use the latent heat capacity of substances in the phase change process to store or release energy. The theoretical basis of energy storage materials has been established for a long time. Advanced foreign countries began to study them as early as the 1960s, while my country only started the research on phase change energy storage materials in the 1980s. There are many kinds of phase change energy storage materials, which can be divided into solid-solid, solid-liquid, liquid-gas, and solid-gas phase change energy storage materials according to their phase change methods. According to the material composition, it is divided into inorganic phase change energy storage materials, organic phase change energy sto...

Claims

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Application Information

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IPC IPC(8): C09K5/02
CPCC09K5/02
Inventor 贾琳
Owner 贾琳
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