The negative effect of silanol-based Si-OH on the surface of silica
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1. The storage of white carbon black absorbs moisture in the air, and makes its structure stable, that is, moisture absorption.
2. When the white carbon black rubber compound is mixed, it is easy to form hydrogen bonds and self-agglomerate, resulting in high Mooney viscosity and difficult mixing and processing.
3. The hydrophilicity of the silica and the hydrophobic rubber macromolecules repel each other, affecting the dispersion of white carbon in the rubber.
4, the active hydrogen ions are very easy to adsorb zinc oxide, accelerators and other amine materials, leading to delayed vulcanization, rubber properties degradation
