Composition, rubber compound, preparation method of rubber compound and tire
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A composition and compounding technology, applied in special tires, tire parts, transportation and packaging, etc., can solve other problems such as performance degradation
Pending Publication Date: 2022-01-14
RACHEM CHINA CO LTD +3
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For many methods of improving the wear resistance of tires, although the wear resistance
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preparation example Construction
[0086] The present application also provides a preparation method of rubber compound, which includes: one-stage mixing, two-stage mixing and three-stage mixing.
[0087] Among them, the one-stage mixing process includes: at 85rpm, first add 100 parts by weight of rubber to the internal mixer for mixing, lift the bolt at 40s, add 0-35 parts by weight of carbon black, 40-100 parts by weight of white rubber at 50s Mix carbon black (two-thirds of the amount) with 4 to 15 parts by weight of silane coupling agent, lift the plug at 110s, and add 20 to 50 parts of white carbon black (the remaining two-thirds of the amount) at 120s, 1 ~35 parts by weight of carbon nanotubes, 6~60 parts by weight of anti-wet skid resin, 0~35 parts by weight of liquid rubber, 0~6 parts by weight of tackifying resin, 3~4 parts by weight of zinc oxide, 1~2 parts by weight of stearin Acid, 2-10 parts by weight of processing aids and 0-30 parts by weight of process oil were mixed, cleaned in 180s, silanized ...
Embodiment 3
[0128] The formulations of Example 3 and Comparative Example 11 are shown in Table 7.
[0129] The formula of table 7 embodiment 3 and comparative example 11
[0130]
[0131]
[0132] The processing aid SL5044 was purchased from Tongcheng Huaqi Chemical;
[0133] Processing aid SL5044 is a mixture of fatty acid derivatives with different polarities:
[0134] The tackifying resin KORESIN was purchased from BASF;
[0135] The chemical formula of tackifying resin KORESIN is as follows:
[0136]
[0137] Among them, n is 7-8.
[0138] Protective wax SL10140 was purchased from Tongcheng Huaqi Chemical;
[0139] The formula of embodiment 3 and comparative example 11 is mixed according to the following method:
[0140] One stage of mixing: at 85rpm, first add 1 to the internal mixer for mixing, lift the bolt at 40s, add two-thirds of 5, 3 and 6 at 50s, mix, lift the bolt at 110s, add at 120s The remaining one-third of 5, 2, 4, 7, 8, 9, 11 and 12 were mixed, cleaned at...
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Abstract
The invention provides a composition, a rubber compound, a preparation method of the rubber compound and a tire, and belongs to the technical field of tires. The composition comprises the following components in parts by weight: 100 parts of rubber, 60-150 parts of white carbon black, 0-35 parts of carbon black and 1-35 parts of carbon nanotubes. The rubber comprises 0-50 parts by weight of natural rubber, 0-50 parts by weight of butadiene rubber and 0-100 parts by weight of butadiene styrene rubber. The average tube diameter of the carbon nanotubes is 5-25 nm. The average length of the carbon nanotubes is 40-65 [mu] m. The specific surface area of the carbon nanotube is 100-360 m < 2 >/g. According to the composition disclosed by the invention, part or all of carbon black is replaced by the carbon nanotubes, and the tire prepared from the carbon nanotubes with specific average tube diameter, specific average length and specific specific surface area has relatively high static conductivity and relatively high wear resistance, so that the driving safety performance is improved, and the service life of the tire is prolonged.
Description
technical field [0001] The present application relates to the technical field of tires, in particular, to a composition, a rubber compound and a preparation method thereof, and a tire. Background technique [0002] A passenger car radial tire (Passenger Car Radial Tire, PCR) is a construction mode of the tire, which has a tread for traction, braking, anti-skid and shock absorption, a flex-resistant carcass, and is used to tighten the tire The body and the belt layer supporting the tread are used to protect the carcass and the flex-resistant sidewall, the inner liner, the air-tight gas function of the tubeless tire, and the inner tube tire to protect the carcass and prevent the friction between the carcass and the inner tube , the cap ply used to increase the high-speed performance of the tire, and the apex rubber used to transition the stress of the sidewall and bead. [0003] For passenger car radial tires, wear resistance is a very important performance, and good wear res...
Claims
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