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Cold-storage agent and preparation method thereof

A cold storage agent and thickener technology, which is applied in the field of new cold storage agent and its preparation, can solve the problems of poor cooling effect, poor conformability, high packaging cost, etc., and achieve good cooling effect, environmental friendliness, and good softness.

Active Publication Date: 2014-02-12
昆山威胜干燥剂研发中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of the ice pack prepared by using the above-mentioned cold storage agent are: the packaging cost is relatively high, and once the inner packaging bag is damaged, the cooling effect of the ice pack will be lost
Most of the reusable ice packs use water injection, that is, fill water in the rubber bag and then freeze to form an ice pack. The disadvantage of this kind of ice pack is that the ice is hard after freezing, and the hard ice and The human body contact surface is small, the fit is poor, it is inconvenient to use, and the cooling effect is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 cold storage agent and its preparation

[0015] Add 4g of the thickener sodium polyacrylate into 56g of water, and after about 1 hour, it will completely dissolve to form a hydrogel, then add 40g of the antifreeze agent glycerin, and mix well to obtain the cooling agent.

Embodiment 2

[0016] Embodiment 2 cold storage agent and its preparation

[0017] Add 1 g of the thickening agent sodium alginate to 79 g of water. After about 1 hour, it will completely dissolve to form a hydrogel. Then add 20 g of the antifreeze agent ethylene glycol and mix well to obtain the cooling agent.

Embodiment 3

[0018] Embodiment 3 cold storage agent and its preparation

[0019] Add 6 g of sodium hydroxymethylcellulose, a thickening agent, to 34 g of water. After about 1 hour, it will completely dissolve to form a hydrogel, then add 60 g of antifreeze agent propylene glycol, and mix well to obtain a cooling agent.

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PUM

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Abstract

The invention provides a cold-storage agent. The cold-storage agent comprises main ingredients of an antifreeze agent, a thickening agent and water, wherein the antifreeze agent is selected from at least one of ethylene glycol, propylene glycol, glycerol and the like; the thickening agent is selected from at least one of sodium polyacrylate, sodium alginate, carboxymethyl cellulose sodium, chitosan and the like. When the cold-storage agent is prepared, the thickening agent is added into water to form a hydrogel, and then the antifreeze agent is added and mixed uniformly, so as to obtain the cold-storage agent. An ice bag prepared with the cold-storage agent provided by the invention can be used repeatedly, has preferable flexibility, is convenient to use and has preferable temperature-reducing effect.

Description

technical field [0001] The invention relates to a novel cold storage agent and a preparation method thereof. Background technique [0002] At present, the commonly used cooling agents in China mainly include disposable products and reusable products. Disposable products generally include two chemical substances, one is ammonium nitrate and the other is crystalline sodium carbonate. When used, the packaging containing the two chemical substances is squeezed out separately. The two chemical substances are mixed together to cause a chemical reaction. , the chemical reaction is an endothermic reaction, thereby achieving a cooling effect. The main disadvantage of the ice pack prepared by using the above-mentioned cold storage agent is that the packaging cost is relatively high, and once the inner packaging bag is damaged, the cooling effect of the ice pack will be lost. Most of the reusable ice packs use water injection, that is, fill water in the rubber bag, and then freeze to...

Claims

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Application Information

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IPC IPC(8): C09K5/06A61F7/10
CPCY02E60/147Y02E60/14
Inventor 沈飞
Owner 昆山威胜干燥剂研发中心有限公司
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