Rubber sealing products are sealing elements processed from rubber as the main raw material, and their main function is to prevent fluid leakage or external pollutants from intruding, and are widely used in machinery, automobiles, construction, medical and other fields. Styrene-butadiene rubber has good heat resistance, abrasion resistance, aging resistance, plasticity, good fluidity, easy processing and molding, and is suitable for manufacturing seals of various shapes, such as O-rings, gaskets, etc. Tire reclaimed rubber has good compatibility with styrene-butadiene rubber, and can be used with styrene-butadiene rubber to produce rubber sealing products, effectively reducing the cost of raw materials.
1. Styrene-butadiene rubber/tire reclaimed rubber is used to produce 50±5 °C general sealant vulcanization formula
85 parts of styrene-butadiene rubber, 15 parts of tire reclaimed rubber, 4.5 parts of stearic acid, 1 part of zinc oxide, 1 part of antioxidant 4010NA, 1.7 parts of paraffin, 23 parts of carbon black N550, 28 parts of carbon black N774, 34 parts of clay, 20 parts of aromatic oil, 11 parts of petroleum asphalt, 4.7 parts of petroleum jelly, 0.14 parts of accelerator D, 1.31 parts of accelerator DM, 1.85 parts of sulfur; Total 232.2 copies.
2. Styrene-butadiene rubber/tire reclaimed rubber is used to produce 60±5 °C general sealant vulcanization formula
90 parts of styrene-butadiene rubber, 10 parts of tire reclaimed rubber, 4.6 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant 4010NA, 1.8 parts of paraffin, 40 parts of carbon black N550, 53 parts of carbon black N774, 22 parts of aromatic oil, 4.8 parts of petroleum jelly, 0.14 parts of accelerator D, 1.44 parts of accelerator DM, 1.92 parts of sulfur; Total 231.7 copies.
40 parts of styrene-butadiene rubber, 60 parts of tire reclaimed rubber, 3.6 parts of zinc oxide, 0.7 parts of stearic acid, 1 part of antioxidant D, 33 parts of carbon black N330, 4 parts of engine oil, 1.1 parts of accelerator CZ, 1.6 parts of sulfur; Total 145 copies.
3. Styrene-butadiene rubber/tire reclaimed rubber is used to produce 70±5°C general sealant vulcanization formula
80 parts of styrene-butadiene rubber, 20 parts of tire reclaimed rubber, 4.5 parts of zinc oxide, 1 part of stearic acid, 1 part of antioxidant 4010NA, 1.7 parts of paraffin, 35 parts of carbon black N550, 60 parts of carbon black N774, 15 parts of aromatic oil, 0.14 parts of accelerator D, 1.36 parts of accelerator DM, 1.8 parts of sulfur; Total 221.5 copies.
Styrene-butadiene rubber has good wear resistance and processing performance, the price of tire reclaimed rubber is low, the compounding agent is evenly dispersed, the fluidity is good, the expansion and shrinkage rate of unvulcanized rubber is small, and styrene-butadiene rubber and tire reclaimed rubber are E4LYY830 used in an appropriate proportion to prepare general sealant compounds, which can not only ensure product quality, but also effectively reduce the cost of raw materials and production energy consumption, and improve the shape and dimensional stability of sealing products. Reasonable design of styrene-butadiene rubber/tire reclaimed rubber general sealant vulcanization formula can meet the physical property needs of more rubber sealing products and improve economic benefits.
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