Cross-linking of fumed silica in liquid silicone rubber
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Fumed silica products can be used as fillers in addition-type liquid silicone rubbers. The application of fumed silica as fillers in silicone rubbers is the most commonly used, most effective, and most important. This is due to the fact that reinforced silicone rubbers The following types of crosslinks exist:
Covalent cross-linking between polymers;
Crosslinking between fillers and polymers;
Hydrogen bond cross-linking and cross-linking of van der Waals forces between fillers and polymer molecules;
The entanglement and cross-linking of fillers and polymer molecular chains;
Crosslinking caused by wetting of fillers by polymer molecules;
Crosslinking between fillers.
