▎ 摘 要
NOVELTY - The preparation method of cable sheath additive involves (a) carrying out ultrasonic vibration on molecular sieve, graphene, porous starch and water, and drying to prepare a mixture, and (b) soaking the mixture, nano-zinc oxide and nano-tin dioxide, and filtering. USE - Preparation method of cable sheath additive (claimed). ADVANTAGE - The method enables preparation of cable sheath additive with excellent moisture-proof performance, and which contains easy-to-obtain raw materials, by simple process.