▎ 摘　　要

NOVELTY - Preparing antifreezing, anti-swelling starch-based nanocomposite hydrogel, comprises (a) mixing graphene oxide powder, disodium hydrogen phosphate, sodium dihydrogen phosphate and deionized water and ultrasonicating for 1 hour under sealing condition to obtain graphene oxide suspension and (b) adding starch and polyethylene glycol to the graphene oxide suspension and under sealed conditions, heating and stirring in a water bath until the starch and polyethylene glycol is completely dissolving mixed solution, (c) adding the ionic liquid to the starch/polyethylene glycol/graphene oxide mixed solution, heating and stirring until the two is fully mixing, (d) heating continusly the starch/polyethylene glycol/graphene oxide/ionic liquid mixed solution and removing the bubbles and (e) pouring the mixed solution of starch/polyethylene glycol/graphene oxide/ionic liquid from air bubbles have been removing into the molding immediately and cycle freeze-thaw and demolding. USE - The method is useful for flexible wear-resistant sensor and electronic skin or tissue engineering field (claimed). ADVANTAGE - The method has high conductivity, which can effectively solve the problem that the current anti swelling performance, anti-freeze, stretchability and conductivity is difficult to give attention the problem. DETAILED DESCRIPTION - Preparing antifreezing, anti-swelling starch-based nanocomposite hydrogel, comprises (a) mixing graphene oxide powder, disodium hydrogen phosphate, sodium dihydrogen phosphate and deionized water and ultrasonicating for 1 hour under sealing condition to obtain graphene oxide suspension and (b) adding starch and polyethylene glycol to the graphene oxide suspension and under sealed conditions, heating and stirring in a water bath until the starch and polyethylene glycol is completely dissolving to obtain starch/polyethylene glycol/graphene oxide mixed solution, (c) adding the ionic liquid to the starch/polyethylene glycol/graphene oxide mixed solution, heating and stirring until the two is fully mixing to obtain starch/polyethylene glycol/graphene oxide/ionic liquid mixed sol, (d) heating continusly the starch/polyethylene glycol/graphene oxide/ionic liquid mixed solution and removing the bubbles and (e) pouring the mixed solution of starch/polyethylene glycol/graphene oxide/ionic liquid from air bubbles have been removing into the molding immediately and cycle freeze-thaw and demolding to obtain antifreeze and anti-swelling starch-based nanocomposite hydrogel products. An INDEPENDENT CLAIM is also included for An anti-freeze, anti-swelling starch-based physical cross-linked hydrogel, obtained by the method as mentioned above.