▎ 摘　　要

NOVELTY - Method for preparing a rubber-based porous material by emulsion blending and freeze-drying method, involves (S01) uniformly mixing the raw materials using a mixed solution stirring combined with an ultrasonic method to obtain a mixed solution, (S02) freezing the mixed solution by using refrigerator freezing combined with glass rod stirring, and destroying the orientation crystallization, and (S03) using freeze-drying method to remove the solvent and ensure the porous structure of the material, and high-temperature curing to obtain a finished product composite latex three-dimensional porous material, where the raw materials of the mixed solution are epoxidized natural rubber latex, graphene oxide aqueous dispersion, polyvinyl alcohol solution, sulfur dispersion, zinc oxide dispersion, and accelerator dispersion. USE - The method is used for preparing a rubber-based porous material, which is used as a flexible and elastic phase change energy storage material and in mattress, pillow and cushion (all claimed). ADVANTAGE - The method innovatively uses water as solvent and pore-forming agent. The preparation method is simple, economical, non-toxic, pollution-free, and environmentally-friendly, and does not use emulsifying foaming agent. The method further improves the excellent mechanical properties of the porous material by using porous material having excellent elasticity with rubber as the main material, polyvinyl alcohol as a reinforcement to improve the mechanical strength of the three-dimensional porous material, and graphene oxide as a physical crosslinking agent to assist crosslinking.