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Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof

A technology of solid-solid phase change and hydrogel, applied in chemical instruments and methods, heat exchange materials, etc., can solve problems such as supercooling, and achieve good toughness and elasticity, high latent heat of phase change, and good mechanical properties Effect

Inactive Publication Date: 2015-08-05
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] But Na 2 SO 4 10H 2 O used as a phase change material has supercooling and phase separation

Method used

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  • Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof
  • Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof
  • Solid-solid phase change energy storage hydrogel with stable shape and preparation method thereof

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Embodiment Construction

[0040] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] A shape-stable solid-solid phase change energy storage hydrogel of the present invention is prepared from the following components in parts by mass:

[0042] Inorganic salt: 15-30 parts,

[0043] Nucleating agent: 1 to 5 parts,

[0044] Thickener: 1 to 5 parts,

[0045] Phase change temperature regulator: 0 to 15 parts,

[0046] Distilled water: 30-60 parts,

[0047] Acrylamide: 5-10 parts,

[0048] Polyene crosslinking agent: the mass of polyene crosslinking agent is 0.02% to 0.15% of the mass of acrylamide,

[0049] Initiator: The quality of the initiator is 0.1% to 5% of the mass of acrylamide,

[0050] Catalyst: The mass of the catalyst is 0.1% to 5% of the mass of acrylamide,

[0051] Alginate: 2 to 5 parts

[0052] Ionic cross-linking agent: The ionic cross-linking agent is 5% to 20% of the mass of alginate.

[0053] In...

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Abstract

The invention discloses a solid-solid phase change energy storage hydrogel with a stable shape. The hydrogel is prepared from the following components in parts by weight: 15-30 parts of inorganic salt, 1-5 parts of nucleating agent, 1-5 parts of thickening agent, 0-15 parts of phase change temperature conditioning agent, 30-60 parts of distilled water, 5-10 parts of acrylamide, a polyene crosslinking agent, an initiator, a catalyst, 2- parts of alginate and an ionic crosslinking agent, wherein the mass of the polyene crosslinking agent is 0.02-0.15 percent of the mass of the acrylamide; the mass of the initiator is 0.1-5 percent of the mass of the acrylamide; the mass of the catalyst is 0.1-5 percent of the mass of the acrylamide; the mass of the ionic crosslinking agent is 5-20 percent of the mass of the alginate. The hydrogel is a solid-solid phase change energy storage hydrogel having a multiple network with a stable shape, and has good toughness and elasticity and good mechanical performance, and the material keeps an excellent solid state before and after phase change.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a shape-stable solid-solid phase change energy storage hydrogel and a preparation method thereof. technical background [0002] The phase change process of matter is generally an isothermal process, and a large amount of energy is absorbed or released during the phase change process. This part of the energy is called the latent heat of phase change. Thermal energy storage and temperature control can be performed by using the heat absorption and exothermic phenomena of certain substances during the phase change process. Such substances with thermal energy storage and control functions are called phase change materials. Phase change materials not only have high energy density, but also use simple devices, are easy to use and manage. [0003] The use of phase change materials for energy storage is one of the important means to improve energy utilization efficiency and pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/02C08F220/56C08F222/38C08F216/36C08J3/24C08J3/075C08L33/26C08L5/04C08K3/30C08K3/16C08K3/32C08K3/26C08K3/38C08K3/28
Inventor 姜勇武楠栾五洲王涛
Owner SOUTHEAST UNIV
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