In dynamic sealing and reciprocating motion components, phenyl silicone rubber often suffers from insufficient wear resistance, leading to surface wear, mass loss, leakage, and failure, thus limiting its application in high-friction conditions. Phenyl raw rubber, with its unique "chain segment self-reinforcement" and "frictional heat dissipation" mechanisms, transforms into a "molecular wear-resistant shield" for friction interfaces, constructing a three-dimensional protective layer against wear at the microscopic level.

The core of phenyl raw rubber's improved wear resistance lies in its "rigid support of phenyl groups" and "densification of the cross-linked network." During friction, ordinary silicone rubber, due to its excessively flexible molecular chains, is prone to chain segment breakage and curling peeling under shear force. In phenyl raw rubber, the rigid structure of the phenyl group acts like "nanoscale support rods" embedded in the molecular chains, enhancing the chain segments' resistance to deformation and reducing the coefficient of friction to below 0.3. Simultaneously, the π-electron cloud of phenyl forms a "chemisorption layer" with the surface of silica filler, creating a strong interfacial bond between the rubber and filler, preventing filler from detaching and forming abrasive particles during friction. After a DIN abrasion test (1000 cycles), its wear volume is <20 mm³, and its mass loss rate is <1%.

Furthermore, the excellent "frictional heat dissipation capacity" of phenyl raw rubber enables it to inhibit thermo-oxidative aging wear. The benzene rings in its molecular chain convert frictional kinetic energy into heat energy through a resonant structure and conduct it rapidly, avoiding thermal degradation caused by local temperatures exceeding 200°C. After 10⁶ cycles of reciprocating friction (frequency 5 Hz, load 5 N), its surface shows no cracks or powdering, and the compression set is <8%.

From the rigid support at the molecular level to the macroscopic low wear performance, phenyl raw rubber, with its synergistic mechanism of "structural reinforcement and interfacial stability," solves the wear resistance shortcomings of phenyl silicone rubber. It is not only a key material for the long-term reliability of dynamic friction components but also an invisible guarantee for achieving "low wear and long life" in motion systems.