▎ 摘　　要

NOVELTY - Host casing material comprises 40-50% diatomaceous earth, 15-20% butenenitrile styrene copolymer, 5-10% graphene, 2-5% glass fiber, 2-5% coupling agent, 10-20% calcium fluoride, 3-8% rose powder, and 2-5% crosslinking agent. USE - Host casing material for computers. ADVANTAGE - The host casing material has good thermal conductivity and good mechanical resistance, and can be prepared in a simple, cost-effective and eco-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing host casing material for a computer, which involves: (A) weighing 40-50% diatomaceous earth, 15-20% butenenitrile styrene copolymer, 5-10% graphene, 2-5% glass fiber, 2-5% coupling agent, 10-20% calcium fluoride, 3-8% rose powder, and 2-5% crosslinking agent; (B) mixing diatomaceous earth, calcium fluoride, butenenitrile styrene copolymer, crosslinking agent, coupling agent and graphene with stirring in an oven; (C) passing rose powder through a 5-10 mesh sieve; (D) granulating the obtained mixture after drying pellets; and (E) injecting into the injection molding machine to form the finished product.