Preparation of Impact Resistance Epoxy Resin Encapsulating Materials

According to research requests of encapsulating materials used in anti-impact precision electron apparatus parts, the materials system was designed on the relation of mechanics performance and techniques properties. Then epoxy resin E-51 was toughening modified with a kind of self-synthesized polyester epoxy resin which had liquid crystal groups. The results showed that the optimized epoxy resin encapsulating materials has high compression strength and favorable operating properties. The impact strength of prepared epoxy resin encapsulating materials increased 4.0 times, and the gel time at room temperature was over 100 minutes.