The invention belongs to the field of functional
polymer materials. Aiming at the defect that the small
organic molecules are easy to be moved and are easy to low the mechanical properties of a rubber, a hyperbranched
polymer promoter capable of effectively enhancing the
damping capacity of the rubber is designed. The invention is calcualted in
mass percentage: 100 shares of raw rubbers, 10 to 40 shares of terminated
hyperbranched polymers of
hindered phenol, 0.5 to 1 share of
potassium stearates, 3 to 5 shares of stearic acids, 5 to 8 shares of
zinc oxides, 1 to 2 shares of sulfurs and 20 to 30 shares of carbon blacks are selected and the raw materials are mixed with each other uniformly on an open mill; the mixtures are subject to the packing mixing for 8 to 12 times; the mixtures are driven to rest for 10 to 16 hours with ventilation and the
vulcanization time of the mixtures is tested on a rotor-free curometer at a temperature
ranging from 150 DEG C to 170 DEG C; the
curing time is recorded after the
vulcanization curve flattens out; then the
vulcanization is carried out utilizing a platten curometer, the temperature is set to range from 150 DEG C to 170 DEG C corresponding to the rotor-free curometer and the pressure is 15MPa and the strips are taken out. The invention can enhance the
damping capacity of the rubber, overcome the defect of a small organic molecular
promoter without lowering the mechanical properties of the rubber and maintain the stable performances for a long time.