The tire pad belt is an annular tape installed among the inner tube and the rim, with a smooth surface and thin edges, and its main function is to protect the inner tube from rim wear or pinched by the rim and the outer tire bead. Reasonable mixing of tire reclaimed rubber can effectively reduce the cost of raw materials on the premise of ensuring the performance of tire pads.
1. Natural rubber/styrene-butadiene rubber/tire reclaimed rubber is used to produce automobile tire pad belt formula
20 parts of natural rubber, 20 parts of styrene-butadiene rubber, 60 parts of tire reclaimed rubber, 1.6 parts of zinc oxide, 1.2 parts of stearic acid, 0.5 parts of antioxidant A, 0.5 parts of antioxidant D, 1 part of paraffin, 16 parts of carbon black N330, 8 parts of carbon black N774, 24 parts of light calcium carbonate, 3 parts of asphalt, 6 parts of pine tar, 0.25 parts of accelerator M, 0.4 parts of accelerator DM, 0.05 parts of accelerator TMTD, 1.2 parts of sulfur; Total 163.7 copies.
5 parts of natural rubber, 45 parts of styrene-butadiene rubber, 50 parts of tire reclaimed rubber, 2.5 parts of zinc oxide, 1.5 parts of stearic acid, 1.5 parts of paraffin, 33 parts of carbon black N550, 5 parts of light calcium carbonate, 2.5 parts of coumarone resin, 8 parts of pine tar, 2.5 parts of asphalt, 1.1 parts of accelerator DM, 0.5 parts of accelerator CZ, 1.4 parts of sulfur; Total: 159.5 shares.
2. Oil-filled styrene-butadiene rubber/tire reclaimed rubber is used to produce automobile tire pad belt formula
50 parts of oil-filled styrene-butadiene rubber, 50 parts of tire reclaimed rubber, 2.5 parts of zinc oxide, 1.5 parts of stearic acid, 38 parts of carbon black N550, 5 parts of light calcium carbonate, 1.5 parts of paraffin, 7.5 parts of pine tar, 2.5 parts of asphalt, 2.3 parts of coumaron resin, 0.5 parts of accelerator CZ, 1.1 parts of accelerator DM, 1.5 parts of sulfur; Total 163.9 copies.
3. Whole tire reclaimed rubber is used to produce automobile tire pad formula
100 parts of tread reclaimed rubber, 3 parts of zinc oxide, 0.5 parts of paraffin, 10 parts of general furnace black, 1.5 parts of engine oil, 1 part of accelerator M, 1.5 parts of sulfur; Total 117.5 copies.
4. A large number of tire pads are mixed with tire reclaimed rubber
When the tire pad is mixed with tire reclaimed rubber to reduce costs, it is recommended to choose tire tread reclaimed rubber, which has a relatively higher effective rubber hydrocarbon content, good elasticity and high strength; When the sulfur vulcanization system is adopted, the dosage of sulfur and accelerator E4LYY722 can be appropriately increased by about 20% to ensure that the rubber is fully vulcanized; The use of carbon black (such as high wear-resistant furnace black, general furnace black) for reinforcement can improve the wear resistance and mechanical strength of the product; Add antioxidants (such as antioxidant A, antioxidant RD), paraffin, etc., to improve the aging resistance of tire pads.
When a large amount of tire reclaimed rubber is mixed in automobile tire pads, rubber products enterprises must choose the appropriate tire reclaimed rubber, reasonably control the mixing ratio of reclaimed rubber, and appropriately adjust the rubber formula to meet the physical property needs of more pads.
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