▎ 摘　　要

NOVELTY - Shock absorber top glue material comprises 40-60 pts. wt. natural rubber, 5-10 pts. wt. fluorosilicone rubber, 6-8 pts. wt. fluoroether rubber, 50-70 pts. wt. modified Neoprene(Synthetic rubber based on polychloroprene) rubber, 20-30 pts. wt. modified nano-aluminum oxide, 2-6 pts. wt. antioxidant N-isopropyl-N-phenyl-p-phenylenediamine (4010NA), 2-3 pts. wt. anti-flex agent SH, 3-8 pts. wt. stearic acid, 3-4.5 pts. wt. zinc oxide, 20-25 pts. wt. carbon black N330, 18-25 pts. wt. white carbon black, 2-5 pts. wt. auxiliary crosslinking agent and 1-2 pts. wt. triethoxyvinylsilane. The modified nano-aluminum oxide is prepared by (1) adding nano-aluminum oxide, ethanol solution and tris buffer solution to the flask, adding dopamine hydrochloride in the flask, and crushing to obtain dopamine-coated nano-aluminum oxide, and (2) adding the silane coupling agent KH-550 and the ethanol solution into the flask, and crushing. USE - The glue material is useful for automobile fittings for inhibiting vibration and impact from road after spring shock absorption in automobile industry. ADVANTAGE - The glue material contains modified nano-aluminum oxide, which is good for increasing the abrasion resistance and thermal conductivity of the top rubber material after polydopamine coated, improves the compatibility of the modified nano aluminum oxide and the base material after grafting treatment of silane coupling agent, can improve the heat conductivity, and reduces the heat resistance contact the heat generated in the working process of the shock absorbers can be effectively conducted. The hardness of each part of the material is consistent, and improves the elasticity of the rubber so as to increase the shock absorption effect. DETAILED DESCRIPTION - Shock absorber top glue material comprises 40-60 pts. wt. natural rubber, 5-10 pts. wt. fluorosilicone rubber, 6-8 pts. wt. fluoroether rubber, 50-70 pts. wt. modified Neoprene (Synthetic rubber based on polychloroprene) rubber, 20-30 pts. wt. modified nano-aluminum oxide, 2-6 pts. wt. antioxidant N-isopropyl-N-phenyl-p-phenylenediamine (4010NA), 2-3 pts. wt. anti-flex agent SH, 3-8 pts. wt. stearic acid, 3-4.5 pts. wt. zinc oxide, 20-25 pts. wt. carbon black N330, 18-25 pts. wt. white carbon black, 2-5 pts. wt. auxiliary crosslinking agent and 1-2 pts. wt. triethoxyvinylsilane. The modified nano-aluminum oxide is prepared by (1) adding nano-aluminum oxide, ethanol solution and tris buffer solution to the flask, adjusting the pH value to 7.5-8 with hydrochloric acid and ultrasonically dispersing for 2-3 hours, adding dopamine hydrochloride in the flask, stirring 20-24 hours under the condition of 60-65℃, centrifuging, filtering with suction, washing the filter cake, drying and crushing to obtain dopamine-coated nano-aluminum oxide, and (2) adding the silane coupling agent KH-550 and the ethanol solution into the flask, stirring and mixing, ultrasonically dispersing for 1-2 hours, adjusting the pH value to 4.5-5.5 with hydrochloric acid, adding dopamine-coated nano-aluminum oxide to the flask, stirring at 60℃ for 6-8 hours, centrifuging, filtering with suction, washing the filter cake, drying and crushing to obtain modified nano-aluminum oxide. An INDEPENDENT CLAIM is also included for preparing the glue material, comprising (1) placing natural rubber, fluorosilicone rubber, fluoroether rubber and modified nano-aluminum oxide into the internal mixer, mixing for 50-60 seconds under the condition that the roller temperature is 30-40℃ and the rotor speed is 50 revolutions/minute, adding antioxidant 4010NA, anti-flex agent SH, stearic acid and carbon black N330 and continuously mixing for 180-200 seconds, discharging the glue under the condition of 140-150℃, and cooling the sheet after being discharged to obtain section of mixed rubber, (2) adding section of mixed rubber, modified Neoprene (Synthetic rubber based on polychloroprene) rubber, zinc oxide and white carbon black into the internal mixer, mixing for 180-200 seconds under the condition of rotor speed of 50/minute, discharging glue under the condition of 140-150℃, cooling down after the sheet is discharged, and obtaining the second-stage mixed rubber, and (3) adding the second-stage rubber compound and auxiliary crosslinking agent into the internal mixer, spraying triethoxyvinyl silane on the surface of the second-stage rubber composite, mixing for 120-150 seconds under the condition of the rotor speed of 20 revolutions/minute, removing the glue under the condition of 60-80℃, cooling down after the sheet is discharged, and obtaining the shock absorber glue material.