▎ 摘　　要

NOVELTY - Preparing temperature-responsive gel comprises adding N-isopropylacrylamide, polyvinyl alcohol and N,N'-methylene bis(acrylamide) into water to obtain organic solution, adding nano-alumina particles and coupling agent into the organic solution to obtain a precursor solution, bonding nano-alumina particles to the organic phase in the organic solution through the coupling agent, adding crosslinking agent and an initiator to the precursor solution, constructing a network structure of N-isopropylacrylamide, polyvinyl alcohol and N,N'-methylene bis(acrylamide) under the action of a cross-linking agent and an initiator to obtain final product. USE - The temperature-responsive gel is useful in preparing temperature control film for outdoor temperature control device (all claimed). ADVANTAGE - The temperature-responsive gel: has high reflectivity of 96.2%, and temperature response threshold value of 30-50 ℃, and provides a temperature control film that realizes full automatic temperature adjustment; reaches the purpose of low carbon and is environmentally friendly. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: 1. temperature-responsive gel comprising a gel network body and nano-alumina particles, the nano-alumina particles are connected to the gel network body, the main body of the gel network is constructed by N-isopropylacrylamide, polyvinyl alcohol and N,N'-methylene bis(acrylamide), the temperature-responsive gel has a temperature-affected threshold, and when the temperature is lower than the threshold, the gel is transparent, and when the temperature is above the threshold, the gel is white; 2. temperature control film comprising a gel layer and a graphene oxide layer, the gel layer is the temperature-responsive gel or the temperature-responsive gel, and the graphene oxide layer is a carrier loaded with graphene oxide; and 3. preparing temperature control film, comprising (i) preparing graphene oxide layer, a spray the graphene oxide solution on the preheated fabric, and baking the fabric sprayed with graphene peroxide at high temperature in vacuum, and (ii) assembling a gel layer and a graphene oxide layer in a stacked form, the gel layer being the temperature-responsive gel or temperature-responsive gel.