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. 

    4.The above is all the content of today, I hope to help you, more knowledge to share welcome to visit our website, if you have this demand, welcome to contact us, ZINCA will serve you wholeheartedly.

　　Silica black is a general term for white powdered X-ray amorphous silicic acid and silicate products, mainly refers to precipitated silica, gaseous silica and ultrafine silica gel, also includes powdered synthetic aluminum silicate and calcium silicate.Silica black is a porous material whose composition can be expressed as SiO2·nH2O, where nH2O is in the form of a surface hydroxyl group.Soluble in caustic and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid).High temperature resistance, non-flammable, tasteless, odorless, with good electrical insulation.