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Winter tire tread rubber composition with both wet grabbing performance and low-temperature performance, method and tire

A winter tire, low temperature performance technology, used in special tires, tire parts, transportation and packaging, etc., can solve problems such as difficult process control, and achieve the effect of improving tire grip, increasing microscopic contact area, and increasing friction coefficient

Pending Publication Date: 2022-07-29
ZHONGCE RUBBER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned published patents, there are many methods of microporosity, but the foaming agent is directly added to the formula, which is mostly difficult to control the process, and there are various defects at the same time

Method used

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  • Winter tire tread rubber composition with both wet grabbing performance and low-temperature performance, method and tire
  • Winter tire tread rubber composition with both wet grabbing performance and low-temperature performance, method and tire
  • Winter tire tread rubber composition with both wet grabbing performance and low-temperature performance, method and tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The composite microporous masterbatch of the present invention is prepared by the following processing methods:

[0068] ①According to the ratio of 20% SB1500, 40% micro-R ball foaming agent 950DU80, 22% porous silicide F-TSI, 10% paraffin oil, 6% pentaerythritol ester, and 2% paraffin, weigh the required raw materials;

[0069] ②Add the raw materials except SBR1500 weighed in step ① into the mixer, and mix for 40 seconds;

[0070] ③Add SBR1500, continue to mix for 2-3 minutes, and control the mixing temperature to 40-70℃;

[0071] ④ Lift the top bolt for 8 seconds, press the top bolt for 15 seconds, lift the top bolt for 6 seconds, and press the top bolt for 15 seconds;

[0072] ⑤ Lift the top bolt for 6 seconds, press the top bolt until the temperature reaches 75-85°C, and discharge;

[0073] ⑥ After filtering the rubber compound obtained in step ⑤, the composite microporous masterbatch is obtained after extrusion and dicing.

Embodiment 2

[0075] The composite microporous masterbatch of the present invention is prepared by the following processing methods:

[0076] ①Weigh the required raw materials according to the ratio of 15% SB1500, 42% micro-R ball foaming agent 950DU80, 25% diatomaceous earth, 10% paraffin oil, 6% pentaerythritol ester, and 2% paraffin;

[0077] ②Add the raw materials except SBR1500 weighed in step ① into the mixer, and mix for 40 seconds;

[0078] ③Add SBR1500, continue to mix for 2-3 minutes, and control the mixing temperature to 40-70℃;

[0079] ④ Lift the top bolt for 8 seconds, press the top bolt for 15 seconds, lift the top bolt for 6 seconds, and press the top bolt for 15 seconds;

[0080] ⑤ Lift the top bolt for 6 seconds, press the top bolt until the temperature reaches 75-85°C, and discharge;

[0081] ⑥ After filtering the rubber compound obtained in step ⑤, the composite microporous masterbatch is obtained after extrusion and dicing.

Embodiment 3

[0083] The composite microporous masterbatch of the present invention is prepared by the following processing methods:

[0084] ①According to the ratio of 25% EPDM rubber, 35% micro-R ball foaming agent 950DU80, 22% porous silicide F-TSI, 10% paraffin oil, 6% pentaerythritol ester, and 2% paraffin, weigh each required amount. raw material;

[0085] ② Add the raw materials weighed in step ① except the EPDM rubber into the internal mixer, and mix for 40 seconds;

[0086] ③Add EPDM rubber, continue to mix for 2-3 minutes, and control the mixing temperature to 40-70℃;

[0087] ④ Lift the top bolt for 8 seconds, press the top bolt for 15 seconds, lift the top bolt for 6 seconds, and press the top bolt for 15 seconds;

[0088] ⑤ Lift the top bolt for 6 seconds, press the top bolt until the temperature reaches 75-85°C, and discharge;

[0089] ⑥ After filtering the rubber compound obtained in step ⑤, the composite microporous masterbatch is obtained after extrusion and dicing.

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Abstract

The invention relates to the technical field of new tire materials, in particular to a winter tire tread rubber composition with both wet grabbing performance and low-temperature performance, a method and a tire. The tread rubber composition is prepared by mixing and processing a rubber component, a reinforcing filler, a processing aid and a vulcanizing agent, and the tread rubber composition is prepared from the following components in parts by weight: 40-60 parts of natural rubber, 20-40 parts of polybutadiene rubber, 10-25 parts of emulsion polymerized styrene-butadiene rubber, 5.0-20 parts of liquid polybutadiene rubber and 3.0-10 parts of composite microporous master batch particles, the composite microporous master batch particles are added in the final mixing process of mixing processing. After the tread rubber composition is vulcanized, the tread of the tire can obtain two types, two forms and two pore diameters of composite porous structures, and the road holding force of ice land and wet land can be improved at the same time.

Description

technical field [0001] The present invention relates to the technical field of new tire materials, in particular to a winter tire tread rubber composition, method and tire having both wet grip performance and low temperature performance. Background technique [0002] Vehicle braking is an extremely important function in vehicle use, and it is the most effective line of defense when encountering emergencies during driving. Although there are many active safety functions on the vehicle to prevent the vehicle from slipping, such as anti-lock braking system (ABS), body stability control system (ESC), traction control system (TCS), etc., but whether the correct selection and use of tires , is still one of the most important factors affecting driving safety. Choosing the correct tire type according to the weather, climate, road conditions and other usage conditions is one of the safe driving skills that every car owner should master. For our tire R&D and manufacturing enterprise...

Claims

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Application Information

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IPC IPC(8): C08J9/32C08L7/00C08L9/00C08L9/06C08L23/16C08L33/00C08L91/06C08K7/26C08K5/103B60C1/00
CPCC08J9/32C08J9/0023C08J9/0061C08J9/0066C08J9/0095B60C1/0016C08J2307/00C08J2409/00C08J2409/06C08J2423/16C08J2433/00C08J2491/06C08J2203/22Y02T10/86
Inventor 黄大业任福君严金洁陈立于博文王丹灵
Owner ZHONGCE RUBBER GRP CO LTD
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