Tread rubber and preparation method thereof
A technology of tread rubber and masterbatch, which is applied in special tires, tire parts, transportation and packaging, etc. It can solve the problems of graphene dispersion difficulty and poor interface effect, and achieve the reduction of tire rolling resistance, easy steps and long service life long effect
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Embodiment 1
[0025] Embodiment one: a kind of preparation method of tread rubber, comprises the following steps, and component ratio is by weight part number:
[0026] (1) Masticating: Put 5 parts of graphene / graphene oxide natural rubber composite masterbatch on the roll on the open mill, the roll distance of the open mill is 1.3±0.15mm, the temperature of the roll is kept at 70±5°C, and the roll is passed for 3 Minutes, then add 90 parts of natural rubber, 10 parts of butadiene rubber, 0.1 part of peptizer and knead together, continue to roll off after 3 minutes;
[0027] (2) One-stage mixing: Add the uniformly mixed rubber in step (1) into the internal mixer, mix for 30±2s, the mixing temperature is 100±5°C, and the rotor speed is 60±5r / min; then add 4.0 1 part of zinc oxide and 3 parts of stearic acid were kneaded for 20±2s, then 30 parts of carbon black, 10 parts of white carbon black, and 2 parts of silane coupling agent were added, and kneaded to 150-155°C for debinding to obtain a ...
Embodiment 2
[0033] Embodiment two: a kind of preparation method of tread rubber, comprises the following steps, and component ratio is calculated by weight parts:
[0034] (1) Masticating: Put 10 parts of graphene / graphene oxide natural rubber composite masterbatch on the roll of the open mill, the roll distance of the open mill is 1.3±0.15mm, the temperature of the roll is kept at 70±5°C, and the roll is passed for 3 Minutes, then add 90 parts of natural rubber, 10 parts of butadiene rubber, 0.1 part of peptizer and knead together, continue to roll off after 3 minutes;
[0035] (2) One-stage mixing: Add the uniformly mixed rubber in step (1) into the internal mixer, mix for 30±2s, the mixing temperature is 100±5°C, and the rotor speed is 60±5r / min; then add 4.0 1 part of zinc oxide and 3 parts of stearic acid were kneaded for 20±2s, then 30 parts of carbon black, 10 parts of white carbon black, and 2 parts of silane coupling agent were added, and kneaded to 150-155°C for debinding to obt...
Embodiment 3
[0041] Embodiment three: a kind of preparation method of tread rubber, comprises the following steps, and component ratio is calculated by weight parts:
[0042] (1) Masticating: Put 10 parts of graphene / graphene oxide natural rubber composite masterbatch on the roll of the open mill, the roll distance of the open mill is 1.3±0.15mm, the temperature of the roll is kept at 70±5°C, and the roll is passed for 3 ~ 5 minutes, then add 90 parts of natural rubber, 10 parts of butadiene rubber, 0.1 part of peptizer and knead together, continue to pass the roller for 4 minutes and then release the film;
[0043] (2) One-stage mixing: Add the uniformly mixed rubber in step (1) into the internal mixer, mix for 30±2s, the mixing temperature is 100±5°C, and the rotor speed is 60±5r / min; then add 3.6 2.5 parts of zinc oxide and 2.5 parts of stearic acid were mixed for 20±2s, then 28 parts of carbon black, 12 parts of white carbon black, and 2.5 parts of silane coupling agent were added, and m...
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