(4) Special surface properties and physiological inertia
       The surface energy of silicone rubber is smaller than most organic materials, and it has low moisture absorption. The water absorption rate of long-term immersion in water is only about 1%. The physical properties are not reduced, the mildew resistance is good, and it does not adhere to many materials, and can be isolated. effect. Silicone rubber is odorless, non-toxic, has no adverse effects on the human body, has a slight reaction with body tissues, and has excellent physiological inertia and physiological aging properties.
(5) High air permeability
       Compared with other polymer materials, silicone rubber has good air permeability. The permeability of nitrogen, oxygen and air at room temperature is 30-40 times higher than that of NR; it is selective for gas permeability, such as oxygen permeability for carbon dioxide. About 5 times of that.
(6) Biomedical performance
        The molecular structure of silicone rubber makes it have excellent biomedical properties, which is proved by the successful application of a large number of animal and human experiments.