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Preparation method of heating material for heating self-heating food

A heating material and food technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem of high heat release efficiency, achieve high heat release efficiency, light weight, and use effects are not affected

Inactive Publication Date: 2020-02-28
安徽省三车节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the existing problems and provide a method for preparing a heating material for self-heating food heating. The heating material does not produce harmful and dangerous gases during use, has high heat release efficiency, and can be used repeatedly after demagnetization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a heat-generating material for self-heating food, preferably, the prepared magnetic porous-structure heat-generating material is used as a food self-heating heat source;

[0016] Preferably, the preparation method of the exothermic material is as follows: Weigh 7.2 millimoles of pentaferric iron and 1.5 millimoles of boron oxide in a beaker, add 35 milliliters of acetone and 14.0 milliliters of triethylamine-ethanol solution into the beaker, and stir Add 10 ml of hydrogen peroxide with a mass concentration of 20% dropwise, stir and mix for 30 minutes, add 15 ml of tetraethyl orthosilicate-ethanol solution, place in a high-temperature and high-pressure reaction kettle, add 1 ml of oleic acid to seal, and heat up to 240 ° C. React for 13 hours, cool down to room temperature naturally with the furnace, pour off the supernatant liquid, wash the remaining product twice with deionized water, and then wash three times with absolute ethanol, dry in a vacuu...

Embodiment 2

[0019] A method for preparing a heat-generating material for self-heating food, preferably, the prepared magnetic porous-structure heat-generating material is used as a food self-heating heat source;

[0020] Preferably, the preparation method of the exothermic material is as follows: Weigh 7.3 millimoles of pentaferric iron and 1.6 millimoles of boron oxide in a beaker, add 38 milliliters of acetone and 15.0 milliliters of triethylamine-ethanol solution into the beaker, and stir Add 11 ml of hydrogen peroxide with a mass concentration of 22% dropwise, stir and mix for 35 minutes, add 18 ml of tetraethyl orthosilicate-ethanol solution, place in a high-temperature and high-pressure reactor, add 1.5 ml of oleic acid to seal, and heat up to 245 ° C. Reacted for 14 hours, cooled naturally to room temperature with the furnace, poured off the supernatant liquid, washed the remaining product twice with deionized water, and then washed three times with absolute ethanol, dried in a vacu...

Embodiment 3

[0023] A method for preparing a heat-generating material for self-heating food, preferably, the prepared magnetic porous-structure heat-generating material is used as a food self-heating heat source;

[0024] Preferably, the preparation method of the exothermic material is as follows: Weigh 7.4 millimoles of pentaferric iron and 1.8 millimoles of boron oxide in a beaker, add 40 milliliters of acetone and 16.0 milliliters of triethylamine-ethanol solution into the beaker, and stir Add 12 ml of hydrogen peroxide with a mass concentration of 24% dropwise, stir and mix for 40 minutes, add 20 ml of tetraethyl orthosilicate-ethanol solution, place in a high-temperature and high-pressure reactor, add 2 ml of oleic acid to seal, and heat up to 250 ° C. Reacted for 15 hours, cooled naturally to room temperature with the furnace, poured off the supernatant liquid, washed the remaining product 3 times with deionized water, and then washed 4 times with absolute ethanol, dried in a vacuum o...

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Abstract

The invention relates to the technical field of processing of new materials and discloses a preparation method of a heating material for heating self-heating food. According to the invention, based onstudies on the principles of heat conduction, heat convection and heat transfer, the prepared magnetic porous-structure heating material is used as a heat source for self-heating of food, and good heat conduction effect is obtained; non-magnetic components are magnetized in virtue of magnetocaloric effect under the action of the magnetic force of nanometer iron oxide, so heat is further generatedto heat food; and the heating material does not generate harmful and dangerous gas in the use process, is high in heat release efficiency, can be repeatedly used after demagnetization, and is not affected in use effect. With the preparation method in the invention, the heating efficiency of the heating material for food can be remarkably improved, and heat production is stable; the heat release amount of the prepared heating material per unit mass reaches 1700-1800 kcal / kg; the prepared heating material is resistant to storage, light in weight, high in heat production efficiency, uniform in food heating, friendly to environment, and safe and convenient to used; and overturning is not needed in the using process of the heating material, so the taste and convenience of self-heating food areimproved.

Description

technical field [0001] The invention belongs to the technical field of new material processing, and in particular relates to a preparation method of a heating material used for self-heating food heating. Background technique [0002] The reason why convenience food is popular with consumers is that it is convenient to eat, tastes good, and saves time. Traditional convenience food is cold food. To obtain a better taste, it needs to be heated , therefore, there are still many inconveniences. With the advancement of science and technology, more and more conveniences have been brought to people's life. The food processing industry is also quietly changing. Wherein self-heating food is subject to liking of people because of its rapid heating and convenient advantage. [0003] The many advantages of self-heating food have expanded its sales space and become the first choice for people in all walks of life. However, the heating material technology for food started late, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/16C09K5/14
CPCC09K5/14C09K5/16
Inventor 张艳秋
Owner 安徽省三车节能科技有限公司
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