▎ 摘　　要

NOVELTY - Preparation method of graphene oxide modified cellulose-based phase change microcapsules, involves (a) uniformly mixing sodium lauryl sulfate, Tween 20 (RTM: Polysorbate 20), defoamer and distilled water, where the mass ratio of sodium lauryl sulfate and Tween 20 (RTM: Polysorbate 20) is (0.5-1):(0.5-1), to obtain an emulsion, uniformly mixing palmitic acid, ethyl cellulose and ethyl acetate, to obtain a mixture, (b) evenly mixing the mixture and the emulsion under the condition of 60-70 degrees C to obtain the mixed system (A), after completely volatilizing the ethyl acetate in the mixed system (A), cooling it to room temperature, and adding graphene oxide to uniformly mix, to obtain mixed system (B), and (c) subjecting the mixed system (B) to suction filtration, and washing and drying the obtained product to obtain graphene oxide modified cellulose-based phase change microcapsules. USE - The method is used for preparation of graphene oxide modified cellulose-based phase change microcapsules (claimed). ADVANTAGE - The method uses highly environmentally-friendly ethyl cellulose to coat palmitic acid, and uses graphene oxide to further modify the ethyl cellulose to improve the thermal conductivity of the final phase change microcapsules. DETAILED DESCRIPTION - Preparation method of graphene oxide modified cellulose-based phase change microcapsules, involves (a) uniformly mixing sodium lauryl sulfate, Tween 20 (RTM: Polysorbate 20), defoamer and distilled water, where the mass ratio of sodium lauryl sulfate and Tween 20 (RTM: Polysorbate 20) is (0.5-1):(0.5-1), to obtain an emulsion, uniformly mixing palmitic acid, ethyl cellulose and ethyl acetate, the mass ratio of palmitic acid, ethyl cellulose and sodium lauryl sulfate of (3-5):(0.5-1):(0.5-1), to obtain a mixture, (b) evenly mixing the mixture and the emulsion under the condition of 60-70 degrees C to obtain the mixed system (A), after completely volatilizing the ethyl acetate in the mixed system (A), cooling it to room temperature, and adding graphene oxide to uniformly mix, the mass ratio of graphene oxide and ethyl cellulose of (0.05-0.1):(0.5-1), to obtain mixed system (B), and (c) subjecting the mixed system (B) to suction filtration, and washing and drying the obtained product to obtain graphene oxide modified cellulose-based phase change microcapsules.