Solid-solid phase change material and preparation method thereof

A solid-solid phase change material and phase change material technology, applied in the field of phase change material preparation, can solve the problems of complexity, high preparation cost, difficult packaging and preparation of solid-solid phase change material technology, etc., and achieve fast heat storage speed and preparation method Simple, no risk of leakage effect

Active Publication Date: 2020-01-10
SHANDONG ANLENG NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides a brand-new water-based solid-solid phase change solution in order to solve the problems of (1) difficult encapsulation and preparation of solid-solid phase change materials by water-based phase change materials and (2) the complex process and high preparation cost of traditional microcapsules. Materials and methods of encapsulating them

Method used

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  • Solid-solid phase change material and preparation method thereof
  • Solid-solid phase change material and preparation method thereof
  • Solid-solid phase change material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] 1. Preparation of A component

[0085] 1) Add 4.72g of sodium tetraborate and 0.94g of polyethylene oxide into 472.14g of distilled water, stir until completely dissolved, the stirring speed is 400r / min, and the water temperature is kept at 50°C.

[0086] 2) Add 9.44g of glass fiber and 5.67g of activated carbon powder into the solution obtained in 1), stir until the glass fiber is evenly dispersed in the solution, and the stirring speed is 300r / min.

[0087] Wherein, the glass fibers are short fibers with a length of 20mm and a diameter of 35um.

[0088] 3) Add 7.08 g of polymer water-absorbent resin to the solution obtained in 2), stir evenly, and let stand for half an hour to obtain component A.

[0089] 2. Preparation of B component

[0090] Get 40g methylene diphenyl diisocyanate (MDI-50) and 160g hydrophilic polyether polyol (functionality is 3, number average molecular weight 10000, water content≤0.05wt%) and 0.0008g retarder phosphoric acid, join in The react...

Embodiment 2

[0095] 1. Preparation of A component

[0096] 1) Add 4.45g of sodium tetraborate, 1.78g of polyethylene oxide and 22.24g of magnesium chloride hexahydrate into 444.84g of distilled water, stir until completely dissolved, the stirring speed is 800r / min, and the water temperature is kept at 50°C.

[0097] 2) Add 13.35g of glass fiber and 8.90g of expanded graphite into the solution obtained in 1), and stir until the glass fiber is evenly dispersed in the solution, and the stirring speed is 500r / min.

[0098] Wherein, the glass fibers are short fibers with a length of 11mm and a diameter of 50um.

[0099] 3) Add 4.45 g of sodium carboxymethylcellulose to the solution obtained in 2), stir evenly, and let stand for half an hour to obtain component A.

[0100] 2. Preparation of B component

[0101] Get 40g methylene diphenyl diisocyanate (MDI-50), 28g toluene diisocyanate (TDI) and 384g hydrophilic polyether polyol (functionality is 4, number average molecular weight 8000, water c...

Embodiment 3

[0106] 1. Preparation of A component

[0107] 1) Add 21.86g of potassium chloride, 6.56g of sodium tetraborate and 1.53g of cationic polyacrylamide into 437.25g of deionized water, stir until completely dissolved, the stirring speed is 800r / min, and the water temperature is kept at 60°C.

[0108] 2) Add 10.93g of ceramic fibers and 13.12g of expanded graphite into the solution obtained in 1), and stir until the ceramic fibers are evenly dispersed in the solution, at a speed of 500r / min.

[0109] Wherein, the ceramic fiber is a short fiber with a diameter of 12um and a length of 8mm.

[0110] 3) Add 8.75 g of sodium alginate to the solution obtained in 2), stir evenly, and let stand for half an hour to obtain component A.

[0111] 2. Preparation of B component

[0112] Get 40g diphenylmethane isocyanate (MDI-50), 35.52g isophorone diisocyanate (IPDI) and 691.2g hydrophilic polyether polyol (functionality is 5, number average molecular weight 12000, water content≤0.05wt %) an...

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Abstract

The invention relates to a solid-solid phase change material and a preparation method thereof, and belongs to the field of phase change energy storage materials. The solid-solid phase change materialcomprises a component A and a component B, wherein the addition amount of the component A is 50-97% and the addition amount of the component B is 3-50% according to the percentage of the total mass ofthe raw materials, wherein the component A is a phase change material component, and comprises the following components in percentage by mass: 0-30% of an inorganic salt, 41-96.8% of water, 1-8% of fiber, 0.1-2% of a dispersant, 0.5-5% of a nucleating agent, 1-8% of a thickening agent and 0.5-6% of a heat conducting medium, wherein the component B is a curing component and comprises the followingcomponents in percentage by mass: 3-25% of isocyanate, 75-97% of hydrophilic polyether polyol and 20 ppm-200 ppm of A retarder accounting for the total mass of the component B. Compared with the existing water-based phase change material, the solid-solid phase change material provided by the invention not only furthest retains the characteristics of high phase change latent heat and low cost of the water-based phase change material, but also has no leakage risk and better heat conductivity.

Description

technical field [0001] The invention relates to a solid-solid phase change material and a preparation method thereof, more specifically, to a water-based solid-solid phase change material and a preparation method thereof, belonging to the field of phase change material preparation. Background technique [0002] Phase change energy-saving material is a chemical material that uses phase change latent heat to store and release energy to achieve energy saving. It refers to automatically absorbing or releasing latent heat to the environment within a certain temperature range by using the phase state or structure change of the material itself. , so as to regulate the surrounding temperature and achieve the purpose of reducing power consumption. [0003] At present, solid-liquid phase change materials are commonly used. However, due to the fluidity of the liquid phase change materials during use, when the packaging is damaged, it is easy to pollute other items, which limits its app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06C08G18/48
CPCC09K5/063C08G18/48
Inventor 刘天亮黄屹峰袁忠月
Owner SHANDONG ANLENG NEW MATERIAL TECH CO LTD
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