Rubber composition, vulcanized rubber and tire
A rubber composition and vulcanized rubber technology, applied in special tires, tire parts, tire treads/tread patterns, etc., can solve problems such as reduced braking performance, and achieve high hysteresis loss and excellent braking performance on ice. Effect
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[0218] [Preparation of rubber composition]
[0219] The rubber composition of the present invention can be prepared by compounding and kneading the above-mentioned components using a kneader such as a Banbury mixer, a roll, or an internal mixer.
[0220] At this stage, the compounding amounts of the rubber component, filler, and others are the same as those in the above-mentioned rubber component.
[0221] The components may be mixed in a single step or in two or more separate steps. Examples of the method of kneading the components in two steps include where the rubber component, filler, resin, silane coupling agent, hydrophilic short fibers, and other compounding components other than the vulcanizing agent and blowing agent are mixed Mixing in the first step, and mixing the vulcanizing agent and blowing agent in the second step.
[0222] The maximum temperature of the first step of kneading is preferably 130 to 170°C and the maximum temperature of the second step is prefer...
Embodiment
[0230] Hereinafter, the present invention will be described in more detail with reference to examples, but these examples are for the purpose of illustrating the present invention and do not limit the present invention.
[0231] [Preparation of rubber composition]
[0232] According to the compounding recipes shown in Tables 1 and 2, sample rubber compositions were prepared by kneading the compounding components in the rubber composition using a Banbury mixer. Sulfur as a vulcanizing agent and a vulcanization accelerator are blended in the final stage of kneading.
[0233] Table 1
[0234] Rubber components (rubber components 1 to 3 described in Table 2) The amount shown in Table 2 Filler (carbon black) The amount shown in Table 2 Filler (Silica) The amount shown in Table 2 A silane coupling agent 3 resin 20 stearic acid 2 Zinc oxide 2 vulcanization accelerator 1 Vulcanizing agent 2 Antiaging agent 2 Foa...
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Abstract
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