General chemical modification methods were given. The general modifiers include alcohol, organosilicon compound, polymer and silane coupling agent.
列举了常见的二氧化硅化学改性方法，其改性剂主要有醇、有机硅化合物、聚合物、硅烷偶联剂。
2
Thiol compound (TGA-PBA) that carried boronic acid groups at its ends was prepared by coupling of 3-amino-phenylboronic acid (PBA) with mercaptoacetic acid (TGA).
The test results have proved that the compound non-coupling charging structure can reduce the temperature of the working face and the blasting vibration damage on the reserved frozen soil.