The reinforcement of fumed silica to HTV silicone rubber is affected by its particle size
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The reinforcement of fumed silica to HTV silicone rubber is affected by its particle size, relative area and structure. Generally, the smaller the particle size, the higher the specific surface area, the higher the structure, the better the reinforcing effect, and the vulcanized rubber The higher the strength and hardness. The change of tear strength of vulcanized rubber is similar to that of tensile strength, which increases with the reinforcement of fumed silica, increases first with the increase of the amount of fumed silica, reaches the peak and then decreases slightly.
