The butyl reclaimed rubber processed from waste butyl inner tubes has excellent air tightness and can be recycled into the production of butyl inner tubes, reducing the cost of inner tube raw materials. In actual production, the index requirements of butyl inner tube are different for different use occasions, and the dosage of butyl reclaimed rubber is very different. In general, the amount of butyl reclaimed rubber in the inner tube of truck tires is small, and the inner tube of the motorcycle can be completely reclaimed butyl rubber. The editor today shares with you two butyl reclaimed rubber formulas.
Mixed with 20% butyl reclaimed rubber: 100 parts butyl rubber, 20 parts butyl reclaimed rubber, 5 parts zinc oxide, 1 part stearic acid, 60 parts carbon black, 25 parts softener, 1 part antioxidant, 1.5 parts sulfur Parts, 2.5 parts of accelerator; Total: 216 parts.
Full use of butyl reclaimed rubber: 180 parts of butyl reclaimed rubber, 5 parts of zinc oxide, 1 part of stearic acid, 75 parts of carbon black, 20 parts of softener, 1 part of antioxidant, 2 parts of sulfur, 6 parts of accelerator; total : 290 copies.
When using butyl reclaimed rubber to reduce the raw material cost of butyl innertubes, rubber products companies can choose sulfur vulcanization, with the accelerator TMTD as the mainstay, and the accelerator M/EZ; or the accelerator TMTD and the accelerator M can be used together. The reinforcement system can be used in combination with high abrasion-resistant furnace black, semi-reinforcing carbon black, and fast-pressing furnace black to improve the mechanical strength of the reclaimed rubber inner tube and improve the performance of the rubber processing technology. The softener can use paraffin oil to improve the process performance of the butyl inner tube while increasing the rubber's resistance to oxidation and degradation.
In actual production, rationally design the butyl inner tube formula containing butyl reclaimed rubber. The Mooney viscosity, tear resistance and mechanical strength of the rubber compound have been improved, and the other properties 2LLYY1117 are basically unchanged. From the perspective of the production process, the butyl inner tube mixed with butyl reclaimed rubber has stable process performance, and the performance of the finished and semi-finished products is good.
When using butyl reclaimed rubber to produce butyl innertubes, choose fine-particle, impurity-free butyl reclaimed rubber to produce butyl innertubes and pure butyl rubber innertubes. The performance of the butyl innertube is improved, and the product is tear-resistant. Improved performance. Therefore, butyl reclaimed rubber is an ideal material to replace butyl rubber to produce low-cost and cost-effective inner tubes. Rubber innertube manufacturers can also use EPDM/reclaimed rubber in a proper amount in the formula to solve the problem of aging and softening and stickiness of butyl innertubes and extend the service life.
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