Introduction to Molten Silicon Micropowder: Research Progress in Surface Chemical Modification of Quartz Sand Powder

　The manufacturer of fused silica powder said that the commonly used modifiers for chemical modification of quartz sand surface include silane coupling agent

 (amino, epoxy, methacrylic, trimethyl, methyl and vinyl), Aluminate coupling agent, titanate coupling agent, stearic acid composite agent, etc., among which silane 

coupling agent is mainly used.

Silica sand powder modified by silane coupling agent is used as filler for high polymer based electrical equipment materials, which can improve its Flexural strength, 

improve its ability to resist ultraviolet radiation, and because there is no serious soot after breakdown, it has good resistance to small leakage.

The surface modification of quartz tailings was carried out using a titanate coupling agent. The modified quartz tailings have a maximum service temperature of 21 ℃ and good waterproof performance. It can be used as a filling agent for plastics such as polyethylene, while ensuring the processability and physical and mechanical properties of the product, appropriately increasing the filling amount and reducing costs.