Phenyl Vinyl Silicone Rubber is a high-performance silicone rubber commonly used in the preparation of sealing materials, insulation materials and rubber products. Anti-aging formula design is crucial to improving the weather resistance, heat resistance and service life of silicone. The following is a basic framework for anti-aging formulation design and performance evaluation:

Anti-aging formula design:
Antioxidants: Adding antioxidants can effectively prevent silicone aging. Common antioxidants include diphenylamines, phenols and organic sulfur compounds.

UV absorber: UV rays are one of the main factors in the aging of silicone, so adding UV absorbers can effectively prevent UV damage to silica gel.

Heat stabilizer: Heat stabilizer can improve the heat resistance of silicone and extend its service life. Commonly used heat stabilizers include organotin compounds, calcium zinc salts, etc.

Fillers: The selection and addition of fillers can improve the mechanical properties and anti-aging properties of silicone. Common fillers include silica, carbon black, etc.

Cross-linking agent: Cross-linking agent is used to cross-link silica gel to improve its heat resistance and mechanical properties. Commonly used cross-linking agents include peroxides, vulcanizing agents, etc.

Performance evaluation:
Aging test: Place silicone samples under high temperature, high humidity or ultraviolet light irradiation conditions, and regularly detect changes in physical properties, such as tensile strength, hardness, elongation at break, etc.

Ultraviolet absorption performance test: Use a UV-visible spectrometer or other spectroscopic instruments to test the absorption performance of the UV absorber in silica gel to evaluate its effectiveness in preventing ultraviolet radiation.

Thermal stability test: Use a thermogravimetric analyzer or thermal weight loss test to evaluate the stability and thermal decomposition temperature of silica gel under high temperature conditions.

Mechanical property testing: Measure the tensile strength, hardness, elongation at break and other mechanical performance parameters of silicone samples to evaluate their durability and anti-aging properties.

Observation of filler distribution: Use tools such as a microscope to observe the distribution of fillers in silica gel and evaluate the impact of fillers on the performance of silica gel.

Through the above formula design and performance evaluation, the anti-aging performance of phenyl vinyl silicone can be comprehensively evaluated and necessary optimization and improvements can be made.