In actual production, when tire reclaimed rubber is used in the cloth water transmission hose wiper to reduce costs, the amount of tire reclaimed rubber should not be too high, generally controlled between 20-50 parts, which can effectively reduce the cost of raw materials, but also Ensure the elasticity, flexibility, flexing resistance and adhesion of the rubber compound. The editor today shared with you a low-cost, cost-effective cloth cloth water transfer hose wiping formula that uses natural rubber as the main raw material and uses styrene-butadiene rubber and tire recycled rubber.
1. Applicable formula of rubber cloth refilling and tire reclaiming rubber
Natural rubber 70 parts, styrene-butadiene rubber 30 parts, recycled rubber 40 parts, zinc oxide 5 parts, stearic acid 2 parts, antioxidant 1 part, carbon black N660 15 parts, light calcium 35 parts, rubber oil 30 parts, accelerator 2.8 parts, sulfur 2.8 parts; total: 233.6 parts. The tensile strength of the cloth-rubbed water delivery hose can reach 11.5MPa, and the elongation at break can reach more than 430%.
2. Design principles for the wiping formula of the cloth-carrying hose
(1) Vulcanization system: When natural rubber/styrene-butadiene rubber/tire reclaimed rubber is used to prepare cloth cloth water transfer hose cloth cloth, the general speed of cloth cloth rubber vulcanization should be faster than the inner and outer rubber layer. Dosage; accelerator M and accelerator DM can be used together in a 1:1 ratio, or the dosage of accelerator DM is slightly higher than the dosage of accelerator M, and the amount of sulfur is appropriately increased.
(2) Reinforcement system: when using tire reclaimed rubber/natural rubber/styrene butadiene rubber and rubber to produce cloth cloth water transmission hose to wipe the rubber layer, rubber product manufacturers should not fill too much reinforcement 2LLYY615 and filler to avoid glue Material viscosity is affected.
(3) Softening system: the same as the outer rubber formula of the cloth cloth water transfer hose. When the tire water reclaimed rubber/natural rubber/styrene butadiene rubber is used to prepare the water transfer hose, pine tar and motor oil can be used together. Pine tar can improve the viscosity of the rubber compound and promote the dispersion of the powdery compounding agent; it can delay the vulcanization under low temperature conditions and have a certain activation effect on the thiazole accelerators such as the accelerator DM/M. 30# engine oil has high viscosity and is more suitable as a softening agent for cloth transmission water hose.
Because the wiping layer of the cloth water transmission hose is between the inner and outer rubber layers, there is no need to use physical antioxidants. The use of antioxidant A alone can significantly improve the heat resistance, flex resistance and fatigue aging resistance of the rubber compound. No more details here. Use tire recycled rubber to reduce the production cost of cloth cloth water transfer hose wiper rubber. When producing low-cost and cost-effective cloth cloth water transfer hose, rubber product manufacturers must choose the tire recycled rubber that is closest to the rubber cloth wiper rubber index. Cooperate with the regular reclaimed rubber factory to ensure the quality stability of the cloth transmission hose.
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