Sponge tire refers to a tire in which the elastic sponge replaces the compressed gas in the inner cavity of the tire. The advantage is that it is not afraid of piercing. The traditional sponge tire mostly uses natural rubber as the main raw material, but the produced sponge tire has poor heat resistance and aging resistance. Short service life; the use of a certain proportion of butyl reclaimed rubber in sponge tires can reduce the cost of raw materials and significantly improve the overall performance of the tires.
Sponge tire formula with butyl reclaimed rubber 1: natural rubber, 100 parts; butyl reclaimed rubber, 100 parts; zinc oxide, 5 parts; stearic acid, 8 parts; anti-aging agent 4020, 1.5 parts; anti-aging agent RD, 1.5 parts; carbon black N774, 25 parts; clay, 15 parts; solid coumarone resin, 6 parts; aromatic oil, 5 parts; petrolatum, 32 parts; sulfur, 2 parts; accelerator DM, 1.5 parts of blowing agent H , 6 parts; urea compound, 3 parts; total: 311.5 parts.
Formulation of sponge tire with butyl reclaimed rubber: natural rubber, 70 parts; styrene-butadiene rubber, 30 parts; butyl reclaimed rubber, 100 parts; zinc oxide, 5 parts; stearic acid, 10 parts; anti-aging agent 4020, 1.2 parts; antioxidant RD, 1.8 parts; carbon black N660, 20 parts; clay, 20 parts; green, 5 parts; aromatic oil, 8 parts; black ointment, 40 parts; sulfur, 1.5 parts; accelerator DTDM, 1.2 parts; accelerator DM, 1.8 parts; foaming agent OBSH, 5 parts; total: 320.5 parts.
Formulation of sponge tire with butyl reclaimed rubber: natural rubber, 100 parts; butyl reclaimed rubber, 100 parts; zinc oxide, 5 parts; stearic acid, 12 parts; anti-aging agent 4020, 2 parts; anti-aging agent RD, 1.5 parts; carbon black N774, 20 parts; calcium carbonate, 20 parts; solid coumarone resin, 3 parts; aromatic oil, 3 parts; ointment, 35 parts; sulfur, 1.2 parts; accelerator DM, 1.2 parts; Agent DTDM, 0.5 parts; accelerator TMTD, 2 parts; foaming agent TSH, 9 parts; total: 315.4 parts.
The above formula is for reference only, and the ratio of butyl reclaimed rubber to natural rubber needs to be adjusted according to the performance requirements of the sponge tire and the rubber index.
Butyl reclaimed rubber has excellent air tightness, heat resistance, aging resistance and corrosion resistance. The sponge tires produced for natural rubber have high production cost and short service life. Rubber tire manufacturers use appropriate amounts in sponge tire formulations. Butyl reclaimed rubber is an ideal solution; in fact, the use of butyl reclaimed rubber in sponge tires can not only reduce production costs, improve product performance, but also improve the processing technology of sponge tires. Are you interested?