-8 DEG C cold storage material composition and preparation method thereof

A cold storage material and composition technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of small supercooling, inability to reach low-temperature transportation environment, and low freezing efficiency, so as to ensure quality and solve the problem of freezing The effect of low efficiency and reduced transportation costs

Inactive Publication Date: 2020-02-25
上海直帆冷链技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the market, the general ice storage agent, after freezing, can only maintain the compartment or airtight insulation box at 2-8°C, which cannot meet the low-temperature transportation environment required by the product.
[0004] The invention discloses a cold storage material composition with a crystallization temperature of -8°C. The cold storage agent is an organic-inorganic combination with a crystallization temperature of -9°C to -7°C. The cold storage material is used as a refrigerant for supercooling The temperature is small, which can effectively solve the problem of low freezing efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare raw materials according to the following mass percentages:

[0033] Sodium stearate 6%, ethylene glycol 2%, ammonium chloride 3%, Tween 80 2.5%, potassium chloride 0.25%, sodium carboxymethylcellulose 1%, borax 1.5%, and the rest is deionized water;

[0034] Preparation:

[0035] (1) take deionized water with container;

[0036] (2) Start the electric mixer, stir at 500rpm, add ammonium chloride, potassium chloride, and borax to deionized water in turn, and stir for 15 minutes to dissolve sodium chloride, potassium chloride, and sodium carboxymethyl cellulose evenly In water, component A is obtained;

[0037] (3) Heat component A to 80°C, set the stirrer at 1000rpm, add ethylene glycol and Tween 80, stir for 5 minutes, continue to add sodium stearate into the solution, and increase the stirrer speed to 2500rpm, Stir for 20 minutes to obtain the phase change cold storage liquid. According to the step-cooling curve method, the phase-change cold storage liquid ...

Embodiment 2

[0039] Prepare raw materials according to the following mass percentages:

[0040] Sodium stearate 4%, ethylene glycol 2%, ammonium chloride 3%, Tween 80 2.5%, potassium chloride 0.2%, sodium carboxymethylcellulose 1%, borax 1.5%, and the rest is deionized water;

[0041] Preparation:

[0042] (1) take deionized water with container;

[0043] (2) Start the electric mixer, stir at 500rpm, add ammonium chloride, potassium chloride, and borax to deionized water in turn, and stir for 15 minutes to dissolve sodium chloride, potassium chloride, and sodium carboxymethyl cellulose evenly In water, component A is obtained;

[0044] (3) Heat component A to 80°C, set the stirrer at 1000rpm, add ethylene glycol and Tween 80, stir for 5 minutes, continue to add sodium stearate into the solution, and increase the stirrer speed to 2500rpm, Stir for 20 minutes to obtain the phase change cold storage liquid. According to the step-cooling curve method, the phase change cold storage liquid h...

Embodiment 3

[0046] Prepare raw materials according to the following mass percentages:

[0047] Sodium stearate 5%, ethylene glycol 2.5%, ammonium chloride 4%, Tween 802%, potassium chloride 0.3%, sodium carboxymethylcellulose 0.5%, borax 1%, and the rest is deionized water;

[0048] Preparation:

[0049] (1) take deionized water with container;

[0050] (2) Start the electric mixer, stir at 500rpm, add ammonium chloride, potassium chloride, and borax to deionized water in turn, and stir for 15 minutes to dissolve sodium chloride, potassium chloride, and sodium carboxymethyl cellulose evenly In water, component A is obtained;

[0051] (3) Heat component A to 80°C, set the stirrer at 1000rpm, add ethylene glycol and Tween 80, stir for 5 minutes, continue to add sodium stearate into the solution, and increase the stirrer speed to 2500rpm, Stir for 20 minutes to obtain the phase change cold storage liquid. According to the step-cooling curve method, the phase-change cold storage liquid ha...

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Abstract

The invention discloses a -8 DEG C cold storage material composition and a preparation method thereof. The -8 DEG C cold storage material composition comprises 3-10% of sodium stearate, 0.5-5% of ethylene glycol, 2-7% of ammonium chloride, 1-3.5% of Tween 80, 0.1-0.5% of potassium chloride, 0.2-1.5% of sodium carboxymethyl cellulose, 0.5-2% of borax, and the balance of deionized water. The -8 DEGC cold storage material composition is an organic and inorganic combination, the crystallization temperature is -9 to -7 DEG C, the supercooling degree of the cold storage material is small when the cold storage material is used as a refrigerant, and the problem of low refrigeration efficiency can be effectively solved.

Description

technical field [0001] The invention relates to a -8°C cold storage material composition, the crystallization temperature of which is between -9°C and -7°C. The -8°C cold storage material composition obtained according to the present invention can be used in fields such as low-temperature refrigeration and low-temperature transportation of various frozen products. Background technique [0002] With the development of fresh online shopping, phase change cold storage materials can be used in temperature-controlled packaging and cold chain logistics. The thawing temperature of frozen meat and frozen seafood is around -3°C. In batch transportation, the transportation temperature of frozen products is required to be below -15°C. Frozen products purchased online are generally transported by express delivery, the transportation time is short, and the temperature above -15°C within a short period of time does not affect the product quality. The customer's requirement for temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/066Y02E60/14
Inventor 宋汝祥刘小辉
Owner 上海直帆冷链技术有限公司
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