When using recycled rubber to reduce the production cost of the tread rubber, the tire reclaimed rubber is more common in the tread rubber formula; in the natural rubber / butadiene rubber / styrene-butadiene rubber and rubber compound, tire rubber is used in the rubber compound. Appropriately adjust the type and amount of compounding agent in the compounding system such as vulcanization system, reinforcing filling system and softening system in the formula, improve the comprehensive index of the tread rubber of the trolley tire, increase the amount of recycled rubber, and reduce the cost of raw materials.
1. Pure raw rubber trolley tire tread rubber formula
50 parts of natural rubber, 30 parts of butadiene rubber, 20 parts of styrene-butadiene rubber, 3 parts of stearic acid, 4 parts of zinc oxide, 2.5 parts of anti-aging agent, 1 part of paraffin, 10 parts of calcium carbonate, 50 parts of carbon black, rubber oil 10 Parts, 1.5 parts of accelerator, 1.3 parts of sulfur; total: 183.3 parts.
2. A small amount of tire reclaimed rubber tread rubber formula
50 parts of natural rubber, 30 parts of butadiene rubber, 20 parts of styrene-butadiene rubber, 10 parts of reclaimed rubber, 2.5 parts of stearic acid, 4 parts of zinc oxide, 2.5 parts of anti-aging agent, 1 part of paraffin, 45 parts of carbon black, rubber oil 4 Parts, 1.5 parts of accelerator, 1.3 parts of sulfur; total: 171.8 parts.
3. The formula of the tread rubber of the trolley mixed with reclaimed rubber needs to be adjusted.
The tire tread rubber formula of the trolley tire is mixed with the tire reclaimed rubber. The dosage of the low-cost filler in the formula reinforcement filling system can be appropriately reduced, and the excessive strength of the reclaimed rubber and the low-cost filler is caused to cause the mechanical strength and wear resistance of the tread rubber to decrease. The combination of carbon black and high wear-resistant carbon black can improve the tensile strength, tear strength, wear resistance and puncture resistance of the tread rubber; the anti-aging system can be used together with the anti-aging agent 4010NA, with a small amount of anti-aging The agent H can further improve the anti-aging property of the tread rubber containing the reclaimed rubber; when the vulcanization system is vulcanized, the accelerator CZ and the accelerator DM can be used together.
When using recycled rubber to reduce the production cost of tread rubber tread rubber, rubber products manufacturers should increase the amount of tire reclaimed rubber according to actual needs. Among them, high-strength tire tread reclaimed rubber has higher effective rubber hydrocarbon content, better elasticity and better wear resistance. Excellent, can replace more parts of raw rubber, reducing raw material costs.
When using tire reclaimed rubber in the tire tread rubber, the amount of reclaimed rubber in the tread rubber required by different indexes is very different, and even the tire reclaimed rubber can be completely used, which significantly reduces the raw material cost. In this small series, I would like to remind everyone that when using recycled rubber to reduce the production cost of eco-friendly trolley tread rubber, it is necessary to choose environmentally-friendly tire reclaimed rubber that passes relevant environmental standards, especially for export products, and to provide authoritative testing. Reported by the regular reclaimed rubber factory cooperation.