▎ 摘　　要

NOVELTY - Tyne bead protective glue comprises 10-90 pts. wt. natural rubber, 10- 90 pts. wt. of double-functional polybutadiene rubber, 0.01-7.5 pts. wt. of oxidation graphene, 20-60 pts. wt. germanium oxide graphene, 10-20 pts. wt. white carbon black, and 4-10 pts. wt. siloxane coupling agent, where the functional group of the double functional polybutadene rubber is amino and siloxanes. USE - Tire bead protecting glue. ADVANTAGE - The tire bead protecting glue has high hardness, bending resistance, low heat generating semi-steel meridian tire mouth protecting glue, and solves the problem of low mechanical strength and hardness, high heat generation and so on of the tire mouth. The method of preparing the tire bead protective glue is simple operation, convenient for industrial production, low cost, and can be prepared to obtain a high hardness and bending resistance. The double-functional polybutadiene rubber with amino and siloxane is used as raw material, using the amino functional group and carboxyl in the graphene of the dehydration condensation reaction, which can obtain a composite material with excellent mechanical property. The reaction mechanism can be more stably combined with the oxidation graphene a larger interface effect, preventing or damaging the agglomeration between the graphene oxide polar groups, so as DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the method for preparing the tyre bead protecting glue, which involves: 1. dispersing the oxidation graphene in the first organic solvent to obtain the oxidized graphene suspension; 2. dissolving the bifunctionalized polybutadiene rubber into a second organic solvent, where the first organic solvent and the second organic solvent are soluble or are the organic solvent; 3. mixing the oxidized graphene suspension with the rubber solution then obtaining the double-functionalized polybutadiene rubber oxidized graphene composite precursor remove the first organic solvent and the second organic solvent; 4. making the double-functionalized polybutadiene rubber oxidized graphene composite precursor under the action of initiator generating dehydration condensation reaction to obtain the double- functionalized polybutadiene rubber oxidized graphene composite material; 5. performing a first step of mixing the natural and the double-functionalized polybutadiene rubber oxidized graphene composite material ; 6. adding the rest raw material components for further mixing to obtain the tyre bead protecting glue