Phenyl silicone rubber is a kind of organic silicon material with special properties. It shows excellent high and low temperature resistance, and can still maintain good elasticity and physical properties in extremely cold and high temperature environments, which makes it have important applications in aerospace, automobile and other fields, and can adapt to the stringent requirements of extreme temperature changes.
      Phenyl silicone rubber also has excellent chemical corrosion resistance, can resist the erosion of a variety of chemical substances, and ensure its stable and reliable operation in industries such as chemical industry. At the same time, its electrical insulation performance is also very outstanding, and it is widely used in the field of electronics and electrical, ensuring the safe operation of equipment.
      In the medical field, due to its good biocompatibility, phenyl silicone rubber has also found its place and can be used to manufacture some special medical equipment. Not only that, its low compression set makes it play a key role in seals and other aspects, ensuring long-term and effective sealing effect.

      Different phenyl content will affect the performance of phenyl silicone rubber, which is specifically manifested in the following aspects:
1. With the increase of phenyl content, the Shore A hardness, tensile strength, elongation at break and compression set of phenyl silicone rubber will increase.
2. The crystallinity of phenyl silicone rubber will decrease with the increase of phenyl content. When the phenyl content reaches a certain level, it will even completely lose its crystallinity.
3. The glass transition temperature and loss factor of phenyl silicone rubber will increase significantly with the increase of phenyl content, and the effective damping temperature range will also be widened.
4. Generally speaking, with the increase of phenyl content, the rigidity of silicone rubber molecular chain gradually increases, and the low temperature resistance of phenyl silicone rubber will gradually decrease.
5. With the increase of phenyl content, the flame retardancy and radiation resistance of phenyl silicone rubber will increase. When the phenyl content is between 20% and 40%, phenyl silicone rubber has excellent flame retardancy and can self-extinguish once it catches fire. When the phenyl content is between 40% and 50%, phenyl silicone rubber has excellent radiation resistance, and the resistance to γ-rays is 1×108 roentgen. In practical applications, it is necessary to select phenyl silicone rubber with appropriate phenyl content according to specific needs to achieve the best performance effect.