Tread rubber for tire and preparation method thereof

• Main Authors: WANG RIGUO, SHAO HUAFENG, HE AIHUA, LI LANGE, LUAN BO, WANG HAO
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

The invention especially relates to tread rubber for a tire and a preparation method thereof, belonging to the field of rubber processing. The tread rubber for the tire comprises, by weight, 50-95 parts of natural rubber, 5-30 parts of butadiene rubber, 5-20 parts of trans-1,4-poly(butadiene-co-isoprene) copolymer rubber, 40-70 parts of a filler, 1.0-3.0 parts of a filler dispersant, 1.0-4.0 partsof a silane coupling agent, 2.0-6.0 parts of zinc oxide, 0.5-3.0 parts of stearic acid, 1.5-5.0 parts of an anti-aging agent, 0.8-3.0 parts of an accelerator, 0.6-2.0 parts of sulfur and 0-0.6 part of an anti-reversion agent. In the tread rubber for the tire provided by the invention, the compatibility and co-vulcanization characteristics of the natural rubber and the butadiene rubber are superior, the filler is uniformly dispersed, and the above components are synergistically reacted with other components, so the finally obtained tread rubber has low rolling resistance and little heat generated by compression on the