▎ 摘　　要

NOVELTY - Preparing low temperature resistant antistatic polyurethane memory cotton comprises (i) adding graphene and anhydrous N,N-dimethylformamide into ultrasonic cleaning machine to ultrasonically clean to obtain graphene dispersion liquid, (ii) adding octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate into the graphene dispersing liquid, stirring under the nitrogen atmosphere, vacuum freeze-drying to obtain the primary conductive agent, (iii) adding the primaryconductive agent into the deionized water for ultrasonic dispersion, stirring, stirring and reacting, adding ammonium USE - The method is useful for preparing low-temperature-resistant antistatic polyurethane memory foam. ADVANTAGE - The method provides a low-temperature resistant antistatic polyurethane memory cotton with good rebound performance under the low temperature environment. DETAILED DESCRIPTION - Preparing low-temperature-resistant antistatic polyurethane memory foam comprises (1) adding graphene oxide and anhydrous N,N-dimethylformamide into an ultrasonic cleaning machine for ultrasonic cleaning to obtain a graphene oxide dispersion, (2) adding octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate into the graphene oxide dispersion obtained in step (1), stirring under a nitrogen atmosphere, and then vacuum freeze-drying to obtain a preliminary conductive agent, (3) adding the preliminary conductive agent obtained in step 2 into deionized water for ultrasonic dispersion and stirring, adding ammonium hydroxide after stirring and react, then add it into a vacuum drying oven for hydrothermal reduction, and centrifuging and freeze-dry the obtained product to obtain a conductive agent, (4) mixing polyether polyol, polypropylene glycol, and polymer polyol, and adding catalyst, auxiliary agent, deionized water, modified silicone oil and conductive agent obtained in step (3), and stir and mix to obtain a mixed material, (5) adding the foaming agent into the mixture, and then stir in the blender to obtain the white material, (6) adding the white material in the mold and form it to get the memory foam.