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Tire tread rubber composition and preparation method thereof

A rubber composition and a technology for tire treads, applied in the field of tire rubber, can solve the problems of poor wear resistance, no obvious improvement effect, and high rolling resistance, and achieve improved braking performance on ice and snow, improved antistatic performance, and reduced increase in size. gentle volume effect

Inactive Publication Date: 2018-12-25
TRIANGLE TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In truck tires, since the non-rubber hydrocarbon components in natural rubber affect the compounding of silica and natural rubber, the use of a large amount of coupling agent does not significantly improve the effect, and the wear resistance of silica-filled rubber is poor, so the two The amount of silicon oxide in truck tires is small, and only a small amount is added to improve tear performance. The use of a large amount of carbon black in truck tires leads to high heat generation, high rolling resistance, low rubber compliance at low temperatures, and low snow and ice production. How to improve braking performance on ice and snow and reduce tire heat generation has become an important research direction

Method used

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  • Tire tread rubber composition and preparation method thereof
  • Tire tread rubber composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Prepare 264 g of pre-ball milled silica modified by coupling agent; prepare 13 g of graphene oxide powdery solid.

[0027] 2. Preparation of tire tread rubber composition containing graphene oxide / silica composite material:

[0028] (1) One stage mixing: the rotor speed is 40-100rpm, the mound pressure: 0.2-0.8MPa, first add the above 0.7kg natural rubber, 7.4g dispersant, 11.1g paraffin and microcrystalline wax, and 14.7g active agent into the dense Mixing in the mill for 30-50s; lift the plug, add 50g carbon black, 264g pre-milled coupling agent modified silica prepared in step 1, and 13g graphene oxide solid prepared in step 1, press the plug, Mix for 10-100s; raise the plug, add 73g carbon black, 25.8g remaining active agent, 22.1g anti-aging agent, press the plug, and mix for 10-200s to obtain a masterbatch.

[0029] (2) One-stage parking: Put the one-stage masterbatch prepared in step 1 in the air and cool to room temperature naturally.

[0030] (3) Final mixing: Roto...

Embodiment 2

[0036] 1. Prepare uniformly dispersed graphene oxide / silica composite material A1 containing 264 g of coupling agent modified pre-ball milled silica and 13 g of graphene oxide.

[0037] 2. Preparation of tire tread rubber composition containing graphene oxide / silica composite material:

[0038] (1) One-stage mixing: rotor speed is 40-100rpm, mound pressure: 0.2-0.8MPa, first add 0.7kg natural rubber, 7.4g dispersant, 11.1g antioxidant paraffin and microcrystalline wax, and 14.7g active agent Mixing in the internal mixer for 30-50s; then lift the plug, add 50g carbon black, 277g composite material A1 prepared in step 1, press the plug, and mix for 10-100s; lift the plug, add 73g carbon black, 47.9g anti-aging 4020, RD and the remaining active agent zinc oxide are mixed for 10-200s to obtain a masterbatch.

[0039] (2) One-stage parking: Put the one-stage masterbatch prepared in step 1 in the air and cool to room temperature naturally.

[0040] (3) Final mixing: Rotor speed 0-80rpm, mo...

Embodiment 3

[0046] 1. Prepare uniformly dispersed graphene oxide / silica composite material A2 containing 264g of coupling agent modified pre-ball milled silica and 25g of graphene oxide.

[0047] 2. Preparation of tire tread rubber composition containing graphene oxide / silica composite material:

[0048] (1) One stage mixing: rotor speed is 40-100rpm, mound pressure: 0.2-0.8MPa, first add 0.7kg natural rubber, 7.4g dispersant, 11.1g antioxidant paraffin and microcrystalline wax, and 14.9g active agent Mix for 30-50s in the internal mixer; raise the plug, then add 50g carbon black and 293g of the composite material A2 prepared in step 1, press the plug, and mix for 10-100s; raise the plug, add 61g carbon black, 47.9g anti-aging 4020, RD and remaining active agent zinc oxide, etc., are mixed for 10-200s to obtain a masterbatch.

[0049] (2) One-stage parking: Put the one-stage masterbatch prepared in step 1 in the air and cool to room temperature naturally.

[0050] (3) Final refining: rotor speed...

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Abstract

The invention relates to the technical field of rubber, in particular to a tire tread rubber composition. Based on 100 parts of alkadiene elastomers, the tire tread rubber composition further comprises, by weight, 10-90 parts of graphene oxide / silica, 0-10 parts of coupling agents, 0-5 parts of dispersing agents, 2-40 parts of carbon black, 1-7 parts of active agents, 1-8 parts of anti-aging agents, 1-4 parts of accelerators, 1-3 parts of sulfur and 0.1-1 part of anti-scorching agent. The tire tread rubber composition has the advantages that the graphene oxide is introduced in the form of graphene oxide / silica composites, so that the low temperature flexibility of tire treads is improved remarkably, in other words, the braking performance of tires on ice and snow is improved significantly;the thermogenesis of the rubber composition is reduced remarkably, in other words, the rolling resistance of the tires is reduced significantly; the tire tread rubber composition has improved antistatic property.

Description

Technical field [0001] The invention relates to the technical field of tire rubber, in particular to a tire tread rubber composition and a preparation method thereof. Background technique [0002] As we all know, with the development of the tire industry, the requirements for energy conservation, environmental protection, and safety performance are getting higher and higher. Energy conservation and environmental protection require tires with low hysteresis loss, low rolling resistance, less energy consumption, energy saving, and the use of green materials. Safety performance requires adequate gripping performance on dry and wet roads, and braking performance on icy and snowy roads. , To ensure driving safety on normal, bad roads or weather. [0003] As a reinforcing inorganic filler, the application of silica in tires has attracted more and more attention. In heavy-duty tires, since the non-rubber hydrocarbon components in natural rubber affect the compounding of silica and natur...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L91/06C08K9/06C08K3/36C08K3/04C08K3/06B60C1/00
CPCB60C1/0016C08L7/00C08L2201/04C08L91/06C08K9/06C08K3/36C08K3/042C08K3/04C08K3/06Y02T10/86
Inventor 梁志成任夫云张世鑫
Owner TRIANGLE TIRE
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