Refrigerating ice bag, refrigerant and preparation method of refrigerant

[0038] This embodiment provides a refrigerant, including the following components, in grams by weight:

[0039]

[0040] Refrigerant is made by following method: weigh respectively powder graft copolymer 2g, sodium carboxymethyl cellulose 0.5 gram, polyoxyethylene 0.5 gram, sodium sulfate 0.5 gram are mixed in the beaker, then add 400g water in the beaker, And use a glass rod to stir, so that all kinds of substances are evenly mixed, and the refrigerant is obtained. Starch graft copolymer has the characteristics of abundant raw material sources and high water absorption rate of the product.

[0042] This embodiment provides a refrigerant, including the following components:

[0043]

[0044]The refrigerant is produced by the following method: Weigh 3 g of cellulose modified resin, 0.5 g of sodium carboxymethyl cellulose, 1 g of polyethylene oxide, and 2 g of sodium sulfate and mix them in a beaker, then add 430 g of water to the beaker, And use a glass rod to stir, so that all kinds of substances are evenly mixed, and the refrigerant is obtained. Cellulose modified resin has the advantages of abundant raw materials and easy biodegradation.

[0046] This embodiment provides a refrigerant, including the following components, in grams by weight:

[0047]

[0048] The refrigerant is made by the following method: Weigh 6 g of vinyl acetate copolymer, 2 g of sodium carboxymethyl cellulose, 1.5 g of polyethylene oxide, and 5 g of sodium sulfate and mix them in a beaker, then add 470 g of water to the beaker, And use a glass rod to stir, so that all kinds of substances are evenly mixed, and the refrigerant is obtained. Vinyl acetate copolymer has high strength after absorbing water, which can improve the mechanical properties of the refrigerant and prevent external impact.