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Rubber composition as well as preparation method and application thereof

A technology of rubber composition and styrene-butadiene rubber, which is applied in the field of rubber and can solve problems such as large differences in test results

Pending Publication Date: 2021-11-26
CHENG SHIN RUBBER CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The braking distance of the wet road was tested at an ambient temperature of 23°C and an ambient temperature of 33°C, and the test results were very different

Method used

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  • Rubber composition as well as preparation method and application thereof
  • Rubber composition as well as preparation method and application thereof
  • Rubber composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The present invention also provides the preparation method of rubber composition, comprises the following steps:

[0036] Mix butadiene rubber, styrene-butadiene rubber A, styrene-butadiene rubber B, styrene-butadiene rubber C, white carbon black, carbon black, coupling agent, modified resin, active agent, anti-aging agent and paraffin wax according to the proportion of the components. The initial rubber mixture is obtained after refining;

[0037] The initial rubber mixture is mixed with an accelerator and sulfur, and the rubber is removed to obtain a rubber composition.

[0038] In the above preparation process, the banburying temperature is 100-200° C., more specifically, the banburying temperature is 120-180° C.; the banburying time is 3-5 hours. The temperature of the debinding is 80-120°C, more specifically, the temperature of the debinding is 90-100°C.

Embodiment

[0041] Mix the components of the rubber composition except the accelerator and sulfur with a 5.5L HF internal mixer, raise the temperature to 140°C to 150°C for constant temperature mixing, and discharge the rubber after constant temperature for 220s to obtain the initial rubber mixture;

[0042] After the initial rubber mixture is cooled to room temperature, it is mixed with the remaining accelerator and sulfur, and the debinding temperature is controlled at 90°C to 100°C to obtain the final rubber mixture; the composition of the rubber composition is shown in Table 1;

[0043] The component data sheet of the rubber composition of table 1 embodiment and comparative example

[0044]

[0045]

[0046] Butadiene rubber: Yangzi Petrochemical BR9000;

[0047] Styrene-butadiene rubber A: ASAHI Co., Ltd. S202 has a styrene content of 33% to 37%, a vinyl content of 53% to 59%, a Tg point of -20°C, and 25 parts by weight of oil-extended per 100 parts by weight of raw rubber (fil...

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Abstract

The invention provides a rubber composition. The rubber composition is prepared from butadiene rubber, butadiene styrene rubber A, butadiene styrene rubber B, butadiene styrene rubber C, white carbon black, carbon black, modified resin, an active agent, an anti-aging agent, paraffin, an accelerant and sulfur according to a specific content. The invention further provides a preparation method of the rubber composition and application of the rubber composition to tires. The rubber composition provided by the invention is used for the tire tread, can reduce the dependence of the braking performance of the tire on the temperature (23-33 DEG C) on a wet and slippery road surface, and ensures that the tire has good low rolling resistance performance.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a rubber composition, its preparation method and its application. Background technique [0002] At present, the main problem facing the tire industry is to reduce the rolling resistance of the tire and improve the grip on dry and wet roads while maintaining good wear resistance. [0003] Green tires are products with great environmental protection significance in the 21st century. Compared with ordinary radial tires, the rolling resistance is 20-30% lower, fuel consumption is 2-4%, and carbon dioxide emissions are reduced by 400g per 100Km. Green tires use a special tread rubber formula, using a large amount of silica as a filler, adding 40 to 60 parts of silica per hundred parts by weight of raw rubber, and some tread rubber formulas even reach more than 80 parts. Tires using silica as a filler can improve the grip of the car on smooth roads, increase the friction with wet roads...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08K7/26C08K3/04C08K3/06C08K3/22C08K5/09C08K13/04B60C1/00
CPCC08L9/06B60C1/0016C08K2003/2296C08L9/00C08L101/00C08K7/26C08K3/04C08K3/06C08K3/22C08K5/09C08K13/04Y02T10/86
Inventor 邱章仁孙群
Owner CHENG SHIN RUBBER CHINA
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