Rubber composition and vulcanized rubber for shoe soles, preparation method and application thereof
A technology of composition and vulcanizing agent, which is applied in the field of rubber to achieve the effects of improving wear resistance, flex resistance and strength
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[0053] In order to specifically illustrate the method for preparing vulcanized rubber of the present invention, a preferred embodiment is provided below for illustration:
[0054] (1) Put the rubber matrix in the internal mixer, the speed is 50-120rpm, the initial mixing temperature is 70-90°C, and the raw rubber is masticated for 0.1-1min; then the modified rubber containing Component A of the agent is introduced into the above-mentioned internal mixer for the first mixing to obtain a section of masterbatch;
[0055] (2) Add the first section of masterbatch and component B containing white carbon black, carbon black, activator, anti-aging agent and softening agent into the internal mixer for the second mixing, discharge and park for 3-5 hours, Obtain the second-stage masterbatch;
[0056] (3) Set the speed of the internal mixer to 50-100rpm, and the initial mixing temperature to 25-50°C. After masticating the second-stage masterbatch for 0.5-1.5 minutes, add component C cont...
Embodiment 1
[0085] Rubber composition formula: 100 parts by weight of butadiene rubber, 4 parts by weight of maleic anhydride (rubber modifier), 40 parts by weight of white carbon black, 8 parts by weight of zinc carbonate, 10 parts by weight of 10# white oil (softener), 5 parts by weight of stearic acid (activator), 1 part by weight of sulfur (vulcanizing agent), 6 parts by weight of DM (accelerator), and 0.5 parts by weight of antioxidant 264 (antiaging agent).
[0086] Preparation process of vulcanized rubber:
[0087] (1) Perform the first mixing of the rubber matrix and the rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed at 80rpm, and the initial mixing temperature at 80°C. The plasticizing time is 0.5min; the rubber modifier is added to the above-mentioned internal mixer for mixing, the mixing temperature is 140°C, and the mixing time is 8min to obtain a masterbatch;
[0088] (2) Carry out the se...
Embodiment 2
[0093] Rubber composition formula: 100 parts by weight of butadiene rubber, 7 parts by weight of diethyl maleate (rubber modifier), 50 parts by weight of white carbon black, 5 parts by weight of zinc carbonate, 10# white oil (softener) 18 Parts by weight, 3 parts by weight of stearic acid (activator), 4 parts by weight of sulfur (vulcanizing agent), 2 parts by weight of DM (accelerator), 2 parts by weight of TMTD (accelerator), 2 parts by weight of antioxidant 264 (antiaging agent) share.
[0094] Preparation process of vulcanized rubber:
[0095] (1) Perform the first mixing of the rubber matrix and the rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed at 80rpm, and the initial mixing temperature at 80°C. The plasticizing time is 0.5min; the rubber modifier is added to the above-mentioned internal mixer for mixing, the mixing temperature is 145°C, and the mixing time is 7min to obtain a mast...
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