Full rubber water hoses are generally processed from natural rubber as the main raw material, but their processing performance and aging resistance are poor. Therefore, many manufacturers combine natural rubber with other rubbers to produce full rubber water hoses. The tire reclaimed rubber processed from waste tires as the main raw material has certain plasticity and physical and mechanical properties, low price, and is easy to mix with natural rubber and additives; Combining with natural rubber to produce full rubber water pipes can not only reduce raw material costs, but also improve the processing performance and aging resistance of the rubber material.
1. Precautions for using tire reclaimed rubber in full rubber water pipes
① Pay attention to the amount of tire reclaimed rubber used: When using tire reclaimed rubber to replace some natural rubber in the production of full rubber water pipes, it is necessary to control the amount of tire reclaimed rubber used reasonably. Generally, 100 parts of tire reclaimed rubber can replace 30 parts of raw rubber; It is recommended to choose tire reclaimed rubber with physical and mechanical properties similar to those of full rubber conveying hoses, which can replace more parts of natural rubber and reduce more raw material costs while ensuring quality.
② Pay attention to adjusting the dosage of various additives: Tire reclaimed rubber contains rubber hydrocarbons that can be vulcanized, and it is also necessary to use sulfur, accelerators, etc. necessary for the use of rubber hydrocarbons in vulcanized reclaimed rubber; Compared with natural rubber, the amount of sulfur and accelerator used in tire reclaimed rubber increases by about 20% in grams. In actual production, even if the sulfur content in the formula of the all rubber water pipe containing tire reclaimed rubber is slightly higher, there will be no frost spraying phenomenon like that of pure natural rubber water pipes.
2. Rubber water pipe mixed with tire reclaimed rubber vulcanization formula
① Natural rubber/tire reclaimed rubber combined with production of full rubber water pipe vulcanization formula
53 parts of natural rubber, 47 parts of tire reclaimed rubber, 3 parts of zinc oxide, 0.76 parts of stearic acid, 0.76 parts of anti-aging agent D, 1.54 parts of paraffin wax, 38 parts of light calcium carbonate, 46 parts of active calcium carbonate, 1.15 parts of engine oil, 0.76 parts of accelerator DM, and 1.93 parts of sulfur; Total: 193.9 copies.
② Natural rubber/tire recycled rubber mixed with rubber shoe adhesive powder production full rubber water pipe vulcanization formula
38 parts of natural rubber, 62 parts of tire recycled rubber, 38 parts of rubber shoe powder, 3.85 parts of zinc oxide, 0.76 parts of stearic acid, 0.76 parts of anti-aging agent D, 0.76 parts of paraffin wax, 77 parts of light calcium carbonate, 3.85 parts of petroleum asphalt, 0.58 parts of accelerator DM, and 2.3 parts of sulfur; Total: 227.86 copies.
In actual production, manufacturers of all rubber water pipes must choose suitable indicators of tire reclaimed rubber according to actual needs, reasonably determine the proportion of tire reclaimed rubber used, and adjust the formula appropriately; Effectively reduce raw material costs while ensuring the performance of the water pipeline. In the future, the editor will continue to share with you the application of tire reclaimed rubber in various types of cloth filled water hoses.
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