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Solid liquid reversible composite material and its preparation method and use

A composite material, sodium thiosulfate pentahydrate technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of high melting point, difficult to reuse, high phase transition point of reversible materials, and save energy and equipment , good reversibility, good plasticity

Inactive Publication Date: 2004-12-22
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pure inorganic solid solution materials are mostly composite metal materials, such as aluminum alloy materials. Although they have good plasticity, they usually have a high melting point. The reversible change process of solid-liquid cannot be realized at low temperature, and it is not easy to reuse.
Pure organic solid-liquid reversible materials have a higher phase transition point and are more expensive, (for example, the technology disclosed in Chinese patent CN1238169A mainly uses high molecular polymers such as polyvinyl chloride)
However, inorganic-organic hybrid solid-liquid reversible materials with low price and low phase transition point have not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Weigh 150 grams of sodium thiosulfate pentahydrate, add it to the reactor, then add 30 mL of tap water, heat and stir to 50 ° C, and stir to dissolve it completely;

[0016] Add 3 grams of zinc chloride to the reactor, and slowly add 7 grams of sodium carboxymethylcellulose after it is fully dissolved, and keep stirring, and finally add 5 grams of glycerol, heat up to 95 ° C, and keep stirring, after 20 minutes Stop heating, pour into the mold and let it cool to room temperature in the air, which is the finished product.

Embodiment 2

[0017] Example 2: Weigh 650 grams of sodium thiosulfate pentahydrate, add it to the reactor, then add 125 mL of tap water, heat and stir to 60 ° C, and stir to dissolve it completely;

[0018] Add 15 grams of zinc chloride into the reactor, and slowly add 40 grams of sodium carboxymethylcellulose after it is completely dissolved, and keep stirring, and finally add 25 grams of glycerol, raise the temperature to 98 ° C, and keep stirring, after 25 minutes Stop heating, pour into the mold and let it cool to room temperature in the air, which is the finished product.

Embodiment 3

[0019] Example 3: Weigh 600 grams of sodium thiosulfate pentahydrate, add to the reactor, then add 120 mL of tap water, heat and stir to 55 ° C, and stir to dissolve it completely;

[0020] Add 12 grams of zinc chloride into the reactor, and slowly add 30 grams of sodium carboxymethylcellulose after it is completely dissolved, and keep stirring, and finally add 20 grams of glycerol, raise the temperature to 100 ° C, and keep stirring, after 30 minutes Stop heating, pour into the mold and let it cool to room temperature in the air, which is the finished product.

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PUM

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Abstract

A solid-liquid reversable composite material used as the ground material of skating rink or to replace gypsum contains pentahydrated sodium thiosulfate, carboxymethyl cellulose sodium, zinc chloride, propanetriol and water.

Description

1. Technical field [0001] The invention relates to the preparation of a composite material, which belongs to a composite solid solution material, in particular to a solid-liquid reversible inorganic-organic composite material and its preparation method and application. 2. Technical background [0002] Most of the solid solution materials currently on the market are pure inorganic or organic materials. They each have their own characteristics, as well as their own advantages and disadvantages. Pure inorganic solid solution materials are mostly composite metal materials, such as aluminum alloy materials. Although they have good plasticity, they usually have a high melting point, and the reversible solid-liquid change process cannot be realized at low temperatures, and it is not easy to reuse. Simple organic solid-liquid reversible materials have higher phase transition points and are more expensive (for example, the technology disclosed in Chinese patent CN1238169A mainly use...

Claims

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Application Information

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IPC IPC(8): C09K5/06
Inventor 许志成杨柳董川
Owner SHANXI UNIV
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