Shock absorbing rubber is mainly used to prevent vibration and impact, transmit or buffer the strength of vibration and impact in transportation, office facilities, household appliances, computer rooms, buildings and other occasions. When damping rubber has requirements for oil resistance, nitrile rubber can be used; The reclaimed nitrile rubber can be used together with nitrile rubber or other rubber to produce oil resistant and shock absorbing rubber.
1. Application mode of nitrile reclaimed rubber in oil resistant and shock absorption rubber
The reclaimed butadiene nitrile rubber retains the basic performance characteristics of butadiene nitrile rubber, with excellent oil resistance, wear resistance and aging resistance. It can directly replace the original butadiene nitrile rubber such as butadiene nitrile-26 to produce oil resistant and shock absorbing rubber; Or use the reclaimed nitrile rubber 2ELYY1115 and nitrile rubber in a proper proportion, so that the oil resistant and shock absorbing rubber has better physical comprehensive performance. When butyl rubber is used as the main raw material to produce damping compound, an appropriate amount of reclaimed nitrile rubber can be mixed to further improve the oil resistance of damping compound.
Compared with the original rubber, the reclaimed butadiene acrylonitrile rubber has better plasticity and fluidity, less heat generated during processing and lower power consumption; The compound added with reclaimed butadiene acrylonitrile rubber has good uniformity, small expansion and contraction, and more stable size. Therefore, the use of reclaimed butadiene nitrile rubber in oil resistant and shock absorbing rubber can not only reduce the cost of raw materials, but also improve the rubber processing performance, reduce power consumption, save labor and electricity. In actual production, nitrile rubber can also be used with neoprene to produce shock absorption rubber.
2. Key points of formulation design for producing oil resistant and shock absorbing rubber from nitrile reclaimed rubber
When producing oil resistant and shock absorbing rubber with reclaimed nitrile rubber as the main raw material, sulfur curing is generally used, together with curing accelerator DM, TMTD, DTDM, CZ, etc., and insoluble sulfur can be used if necessary. When using reclaimed butadiene acrylonitrile rubber alone or butadiene acrylonitrile rubber/reclaimed rubber and using rubber to produce oil resistant and shock absorbing compound, high wear-resistant furnace black, fast press furnace black, hot cracking carbon black can be used, either alone or in combination, or in combination with white carbon black. It is recommended to use dioctyl sebacate, dibutyl phthalate and liquid coumarone as softeners when preparing oil resistant and shock absorbing rubber from nitrile rubber. It is recommended to use antioxidant MB, RD, 4010NA, etc. to improve the aging resistance of oil resistant and shock absorbing compound of recycled rubber.
Oil resistant and shock absorbing rubber is not easy to swell when it is in contact with oil substances for a long time. As a common oil resistant and renewable rubber product, nitrile reclaimed rubber can not only reduce the cost of raw materials, but also improve the processing performance of rubber materials when it is mixed into the formula of oil resistant and shock absorbing rubber products in an appropriate proportion. Later, I will continue to discuss relevant issues with you.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits