aochengchem: Chemical modification of silane coupling agent

Silane coupling agent is made from silicon chloroform (HSiCl3) and unsaturated olefin with reactive groups under the platinum chlorate catalytic addition, then through alcoholysis. Quartz powder or other surface chemical modification of silica powder mainly using silane coupling agent, amino, epoxy group, including methyl allyl trimethyl, and vinyl silane coupling agent. - RO functional groups of the silane coupling agent can be in the water (including the packing surface adsorption of free water) hydrolysis to produce silanol group, a group that can be combined with SiO2 for chemical or combined with the original silicon ether glycol is an organic whole, become a homogeneous system. Like this, is to remove the moisture on the surface of the SiO2, and its oxygen atoms to form silicon ether bond, so that the silane coupling agent on the other side of the carried by the polymer and the polymer has the very good affinity of organic functional groups -R' covered tightly in quartz or silicon dioxide particles surface, form covering film with reaction activity.