NBR reclaimed rubber and more for the production of oil, wear-resistant rubber products with high performance requirements, such as oil hose, oil pads, oil-resistant rubber shoes, wear parts, etc. This is because the nitrile rubber reclaimed oil excellent performance, good wear resistance . However, compared with other types of reclaimed rubber, nitrile reclaimed rubber products flex cracking cracking resistance is poor, then how to improve this defect and prolong the service life of the product?
First of all, let's know what is called flex cracking of rubber: flexing and cracking of rubber products refers to the phenomenon that a surface of a rubber product has a crack. Flex cracking resistance is an index to measure the rubber's fatigue resistance. Compared with acrylonitrile butadiene rubber, nitrile rubber reclaimed rubber is a kind of rubber processed by many processes of crushing, vulcanizing and refining of used nitrile rubber. The rubber molecules are severely damaged inside and the force between molecules is weakened, Crosslinking density is reduced, flexibilizing cracking of nitrile reclaimed rubber increases. To improve the flexiblity of nitrile reclaimed rubber is of great significance to improve the serviceability of nitrile reclaimed rubber products and prolong the service life.
1, the use of nitrile rubber reclaimed rubber production of high standards of rubber products, products for flex cracking resistance demanding, this time in the rubber formulations can add a certain amount of nitrile rubber to improve the original NBR plastic flexor The shortcomings of poor cracks, the cost of minimizing the use of nitrile rubber reclamation.
2, white carbon black rubber industry is a common reinforcing filler, reinforcing, wear resistance, easy to disperse, to a certain extent, improve the flex cracking resistance of nitrile rubber products .
3, more and more types of antioxidants on the market, you want to improve the resistance to flex cracking flexiblity nitrile rubber products, formulations can also add a certain amount of anti-flex cracking crack-type antioxidant, significantly improved Recycled plastic products flex cracking resistance, extended product life.
4, Strict control of the production process of nitrile reclaimed rubber products and steps, curing system in a variety of vulcanizing agents, improver improper cooperation, the phenomenon of leakage known as leakage phenomenon, the plastic material is not good liquidity will cause nitrile rubber reclaimed Products, flex cracking resistance of the problem of deterioration, rubber products companies can be based on the demand of nitrile recycled plastic products, select the appropriate nitrile rubber reclaimed, formulate a reasonable formula to avoid the impact of the process of nitrile rubber reclaimed products Flex Crack Sex.
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