Effect of Coupling Agent Modify Filler on the Electrical Properties of Sheet Molding Compounds
This text have studied the effect of electrical properties of sheet molding compound (SMC), by adding different amount of Aluminum hydroxide powder which was modified by titanate coupling agent. By testing oil absorption value, we can obtain the optimum dosage of coupling agent. The results showed that oil absorption value of the powder can reach minimum when the dosage of coupling agent was 2% .After the modification of aluminum hydroxide powder, the biggest amount of filled powder will increase and the volume resistivity can improve approximately 30%. When the same amount of Aluminum hydroxide powder was added, dielectric constant and dielectric loss of the modified products is less than that of unmodified.
Shiquan Liu and Min Zuo
D. L. Jin et al., "Effect of Coupling Agent Modify Filler on the Electrical Properties of Sheet Molding Compounds", Advanced Materials Research, Vols. 306-307, pp. 778-781, 2011