Rubber composition and vulcanized rubber for shoe soles, preparation method and application thereof
A kind of composition, the technology of vulcanizing agent, the application in the preparation of soles, vulcanized rubber, the field of preparing vulcanized rubber
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[0057] In order to specifically illustrate the method for preparing vulcanized rubber of the present invention, a preferred embodiment is provided below for illustration:
[0058] (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 mastication time is 0.1-1min; then the mixture containing the initiator and Component A of the rubber modifier is introduced into the above-mentioned internal mixer for the first mixing to obtain a section of masterbatch;
[0059] (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;
[0060] (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...
Embodiment 1
[0090] Rubber composition formula: 100 parts by weight of butadiene rubber, 1 part by weight of γ-aminopropyltriethoxysilane (rubber modifier), 0.01 part by weight of DCP (initiator), 40 parts by weight of white carbon black, zinc carbonate 8 parts by weight, 10 parts by weight of 10# white oil (softener), 5 parts by weight of stearic acid (activator), 1 part by weight of sulfur (curing agent), 3 parts by weight of DM (accelerator), TMTD (accelerator) 1.5 parts by weight, D (accelerator) 1.5 parts by weight, antioxidant 264 (antiaging agent) 0.5 parts by weight.
[0091] Preparation process of vulcanized rubber:
[0092] (1) Perform the first mixing of rubber matrix, initiator and rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed to 80rpm, and the initial mixing temperature to 80°C , the raw rubber masticating time is 0.5min; add the initiator and rubber modifier to the above-mentioned intern...
Embodiment 2
[0098] Rubber composition formula: 100 parts by weight of butadiene rubber, 3 parts by weight of γ-aminopropyltriethoxysilane (rubber modifier), 0.03 parts by weight of DCP (initiator), 50 parts by weight of white carbon black, zinc carbonate 5 parts by weight, 18 parts by weight of 10# white oil (softener), 3 parts by weight of stearic acid (activator), 4 parts by weight of sulfur (curing agent), 2 parts by weight of TMTD (accelerator), D (accelerator) 2 parts by weight, 2 parts by weight of antioxidant 264 (antiaging agent).
[0099] Preparation process of vulcanized rubber:
[0100] (1) Perform the first mixing of rubber matrix, initiator and rubber modifier to obtain a section of masterbatch; specifically, add butadiene rubber into the internal mixer, set the rotation speed to 80rpm, and the initial mixing temperature to 80°C , the raw rubber masticating time is 0.5min; add the initiator and rubber modifier to the above-mentioned internal mixer for mixing, the mixing temp...
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