▎ 摘　　要

NOVELTY - Modified styrene-butadiene rubber comprises styrene-butadiene rubber matrix and thermally conductive filler dispersed in styrene-butadiene rubber matrix, where the thermally conductive filler includes graphene oxide and carbon oxide nanotubes. USE - The modified styrene-butadiene rubber is useful for covering rubber in heat-resistant conveyor belt (all claimed). ADVANTAGE - The method: provides covering glue, which has very high thermal conductivity, and local heat can rapidly transfer to entire conveyor belt; has specific residual crystallization in vulcanized state, which will crystallize and melt when heated to ≥60℃, and absorbs lot of heat, reduces temperature of entire heat-resistant conveyor belt, and protects rubber from aged by thermal oxygen. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparing modified styrene-butadiene rubber, comprising mixing dispersion of thermally conductive filler and styrene-butadiene latex to obtain a mixture, mixing mixture with demulsifier to obtain raw rubber, and kneading raw rubber and activator to obtain modified styrene-butadiene rubber, where the thermally conductive filler includes graphene oxide and carbon nanotubes. covering glue, comprising 40-60 pts. wt. styrene-butadiene rubber, 20-40 pts. wt. trans-1,4-polyisoprene, 20-40 pts. wt. modified styrene-butadiene rubber, 4-13 pts. wt. activator, 9-20 pts. wt. plasticizer, 0.5-2 pts. wt. silane coupling agent, 2-4 pts. wt. anti-aging agent, 0.5-1 pts. wt. antioxidant, 10-20 pts. wt. flame retardant, 55-85 pts. wt. reinforcing filler, 2-4 pts. wt. vulcanization accelerator, and 0.5-2 pts. wt. vulcanizing agent. preparing covering glue, comprising mixing styrene-butadiene rubber, trans-1,4-polyisoprene, modified styrene-butadiene rubber, activator, plasticizer, silane coupling agent, antioxidant, antioxidant, flame retardant, reinforcing filler, vulcanization accelerator and vulcanizing agent to obtain mixed rubber, and vulcanizing compounded rubber to obtain covering rubber.