Blending is to make the compound evenly distributed in the raw rubber, mixing into mixed silicone rubber.After mixing the silica gel and the compound at the same time play a physical and chemical action, thus forming a new structure.When mixing silicone rubber, there will be a problem of unpalatable powder. What is the reason for this problem?How to deal with it?Here is a brief introduction:

　　The reason:

　　1, mixing silicon rubber structure dose is small

　　2, the hydroxyl content of the structural agent is too low

　　3. The molecular weight of raw rubber is high and the molecular weight distribution is too narrow

　　4, mixing silicone rubber raw rubber has a small crosslinking silicone rubber

　　5, the amount of silica and additives is disproportionate 6 opening or kneading temperature is too low

　　Processing:

　　1, increase the structure agent

　　2. Mix silicone rubber with uniform molecular weight distribution

    3. Add the material in proportion to the structural agent. 

    Characteristics of silicone rubber mixing:

    Has excellent thermal stability, high and low temperature resistance, can work in -60℃ ~ +250℃ state for a long time, ozone resistance, weather resistance and good electrical properties, corona resistance, arc resistance, electric spark strong, with chemical stability, climate aging resistance, radiation resistance, physiological inertia, good air permeability.