What is quartz powder coating modification?

The coating modification of quartz powder is a method of surface modification achieved by coating the surface of quartz powder with high polymers or resins. If phenolic resin or other materials are used to coat quartz sand to improve the bonding performance of fine casting sand. This coated casting sand can achieve high investment casting speed while maintaining high resistance to rolling and cracking in mold and core production; Quartz sand coated with furan resin for oil well drilling can increase oil well production.

Coating modification is a simple method of treating the surface of powder. Taking resin coated quartz sand as an example, surface coating modification methods can be divided into two types: cold method and hot method.