XNBR (Cross Linked Nitrile Butadiene Rubber) is a cross-linked cyanide nitrile rubber material. It increases molecular weight, increases glass transition temperature, and significantly improves mechanical properties through chemical reactions. Compared with traditional NBR, XNBR performs better in terms of oil resistance and high temperature resistance, making it suitable for more demanding working environments. 1. Structural characteristics: The structure of XNBR contains a large number of cross-linking points, which form a…