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Chemical ice pack and preparation method thereof

An ice pack and chemical technology, applied in the field of chemistry, can solve the problems of short cooling time, rapid changes, unfavorable long-term cooling effect, etc., and achieve the effect of increasing cooling time and increasing cooling time

Inactive Publication Date: 2015-09-09
黄琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can effectively reduce the temperature, there is a problem because of the water in the preparation process: the dissolution rate of salt in water is very fast, the temperature will change quickly, but the refrigeration time is not long
In addition, the ice packs made are in the form of granules, and the granules are discontinuous, which is not conducive to maintaining the long-term cooling effect

Method used

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  • Chemical ice pack and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A chemical ice pack made of the following components by weight: 45 parts of ammonium nitrate, 75 parts of potassium aluminum sulfate dodecahydrate, 4 parts of sodium carboxymethylcellulose, 6 parts of ethanol, and 23 parts of sodium chloride , 3 parts of sodium hydroxide.

[0019] The preparation method of described chemical ice pack, comprises the steps:

[0020] (1) Accurately weigh according to the weight ratio of each component, add the weighed sodium carboxymethylcellulose into half potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 250r / min, and heat to 85°C, When the solution is transparent, stop heating and allow it to cool down to room temperature naturally to obtain solution A;

[0021] (2) Add ammonium nitrate, the other half of potassium aluminum sulfate dodecahydrate, and ethanol into solution A in turn under stirring, and stir it evenly to obtain solution B;

[0022] (3) In solution B, first add sodium hydroxide and stir evenly, the...

Embodiment 2

[0024] A chemical ice pack made of the following components by weight: 40 parts of ammonium nitrate, 70 parts of potassium aluminum sulfate dodecahydrate, 2 parts of sodium carboxymethylcellulose, 9 parts of ethanol, and 30 parts of sodium chloride , 4 parts of sodium hydroxide.

[0025] The preparation method of described chemical ice pack, comprises the steps:

[0026] (1) Accurately weigh according to the weight ratio of each component, add the weighed sodium carboxymethyl cellulose into half potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 200r / min, and heat to 80°C, When the solution is transparent, stop heating and allow it to cool down to room temperature naturally to obtain solution A;

[0027] (2) Add ammonium nitrate, the other half of potassium aluminum sulfate dodecahydrate, and ethanol into solution A in turn under stirring, and stir it evenly to obtain solution B;

[0028] (3) In solution B, first add sodium hydroxide and stir evenly, th...

Embodiment 3

[0030] A chemical ice pack, made of the following components by weight: 50 parts of ammonium nitrate, 80 parts of potassium aluminum sulfate dodecahydrate, 5 parts of sodium carboxymethylcellulose, 4 parts of ethanol, and 15 parts of sodium chloride , 1 part of sodium hydroxide.

[0031] The preparation method of described chemical ice pack, comprises the steps:

[0032] (1) Accurately weigh according to the weight ratio of each component, add the weighed sodium carboxymethyl cellulose into half potassium aluminum sulfate dodecahydrate and stir at a stirring speed of 300r / min, and heat to 90°C, When the solution is transparent, stop heating and allow it to cool down to room temperature naturally to obtain solution A;

[0033] (2) Add ammonium nitrate, the other half of potassium aluminum sulfate dodecahydrate, and ethanol into solution A in turn under stirring, and stir it evenly to obtain solution B;

[0034] (3) In solution B, first add sodium hydroxide and stir evenly, th...

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Abstract

The invention discloses a chemical ice pack and a preparation method thereof. The chemical ice pack is prepared by adopting the following components in parts by weight: 40 to 50 parts of ammonium nitrate, 70 to 80 parts of aluminum potassium sulfate dodecahydrate, 2 to 5 parts of sodium carboxymethylcellulose, 4 to 9 parts of ethyl alcohol, 15 to 30 parts of sodium chloride and 1 to 4 parts of sodium hydroxide. The preparation method of the chemical ice pack comprises the following steps: weighing each component according to the weight proportion, adding and stirring measured sodium carboxymethylcellulose in half of aluminum potassium sulfate dodecahydrate at a speed of 200 to 300 r / min, heating to 80 to 90 DEG C, stopping the heating when the solution is transparent, and naturally cooling the solution to the room temperature to obtain a solution A; sequentially adding ammonium nitrate, the rest aluminum potassium sulfate dodecahydrate and ethyl alcohol under the stirring state to obtain a solution B; finally sequentially adding sodium hydroxide and sodium chloride into the solution B, uniformly stirring, and encapsulating by utilizing a bag. The chemical ice pack is long in refrigerating time.

Description

technical field [0001] The invention relates to a chemical ice pack and a preparation method thereof, belonging to the technical field of chemistry. Background technique [0002] Chemical ice packs are made by using the principle that certain chemical substances (such as ammonium salts) absorb heat during the dissolution process, and the temperature in the bag drops rapidly. It is mainly used in medical care (such as cold compress to reduce swelling), or food preservation, or medicine (such as vaccine) cold storage, etc., and has good results. In short, chemical ice packs play a relatively important role in daily life. [0003] Usually people use ice cubes to realize the purpose of cooling, but use ice cubes to bring great inconvenience, such as ice cubes are solid, the contact area is not large, the cooling is uneven, and it is difficult to achieve the desired effect. Compared with ice cubes, chemical ice packs have the characteristics of small size, light weight, low coo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
Inventor 黄琳
Owner 黄琳
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