Suction hose is an industrial hose used to transport liquid, gas or solid particles in agricultural irrigation, water conservancy engineering, mining and other fields, usually composed of an inner rubber layer, a rubber tape layer, a metal spiral winding layer and an outer rubber layer, and is mostly processed with natural rubber and styrene-butadiene rubber as the main raw materials; Rational use of reclaimed rubber and appropriate adjustment of suction hose formula can effectively reduce production costs while maintaining good mechanical properties.
1. Styrene-butadiene rubber/natural rubber/reclaimed rubber, and practical formula for the production of suction hose canvas glue
75 parts of oil-filled styrene-butadiene rubber, 25 parts of natural rubber, 50 parts of reclaimed rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 35 parts of calcium carbonate, 15 parts of general carbon black, 18 parts of engine oil, 2 parts of rosin, 0.9 parts of accelerator M, 1 part of accelerator DM, 3.1 parts of sulfur; Total: 235 copies.
2. Styrene-butadiene rubber/natural rubber/reclaimed rubber is used to produce a practical formula for the outer layer of the suction hose
60 parts of styrene-butadiene rubber, 20 parts of natural rubber, 20 parts of high-pressure polyethylene, 120 parts of reclaimed rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 2.2 parts of antioxidant D, 65 parts of calcium carbonate, 30 parts of clay, 40 parts of high wear-resistant carbon black, 25 parts of engine oil, 2.1 parts of accelerator M, 3.7 parts of sulfur; Total: 396 copies.
3. Styrene-butadiene rubber/natural rubber/reclaimed rubber is used to produce a practical formula for the inner layer of the suction hose
50 parts of natural rubber, 50 parts of styrene-butadiene rubber, 100 parts of reclaimed rubber, 5 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of antioxidant D, 1.5 parts of antioxidant 4010, 1.6 parts of paraffin, 45 parts of light calcium, 30 parts of clay, 50 parts of carbon black N330, 10 parts of pine tar, 10 parts of coumaron resin, 1.6 parts of accelerator M, 0.8 parts of accelerator CZ, 3 parts of sulfur; Total: 363 copies.
Due to the different physical property requirements of each adhesive layer of the suction hose, the varieties, performance indicators and mixing ratio of the reclaimed rubber used are very different, and the formula is appropriately adjusted according to the actual needs.
The price of reclaimed rubber is significantly lower than that of natural rubber and synthetic rubber, and the reasonable use of reclaimed rubber can significantly reduce the production cost of suction hoses. Reclaimed rubber 2SLYY119 has good plasticity and fluidity, and is easy to mix with raw rubber and compounding agent, which can improve the processing technology performance of rubber and improve production efficiency in the preparation of each rubber layer of the suction hose. Improve the aging resistance of rubber products and prolong the service life of hoses. The development of the application of reclaimed rubber in suction hoses also helps to reduce the environmental impact of waste rubber and reduce the exploitation of natural resources, which is in line with the concept of environmental protection and sustainable development.
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