▎ 摘　　要

NOVELTY - Preparation of high-strength high-isolation condom involves performing three-time impregnation process using stable dispersion liquid prepared by modified graphene, and composite latex liquid obtained by uniformly mixing latex liquid and additives, and obtaining condom provided with latex films on the inner surface and outer surface and modified graphene/latex composite material film interlayer as intermediate between inner surface and outer surface. USE - Preparation of high-strength high-isolation condom (claimed). ADVANTAGE - The method provides high-strength high-isolation condom having excellent stability, tear resistance and resistance to penetration of small-size virus, and improved blasting volume and ultimate elongation rate, by simple process. The high-strength high-isolation condom is non-toxic and harmless. DETAILED DESCRIPTION - Preparation of high-strength high-isolation condom involves performing three-time impregnation process using stable dispersion liquid prepared by modified graphene, and composite latex liquid obtained by uniformly mixing latex liquid and additives, and obtaining condom provided with latex films on the inner surface and outer surface and modified graphene/latex composite material film interlayer as intermediate between inner surface and outer surface, such that sandwich structure is formed. The latex liquid is used for impregnation liquid in first-time and third-time impregnation process. The modified graphene/latex composite latex liquid is used as impregnation liquid in second-time impregnation process.