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发明公开
CN107189359A 一种石墨烯复合有机硅封装材料的制备方法 无效 - 撤回

一种石墨烯复合有机硅封装材料的制备方法
摘要：
本发明公开了一种石墨烯复合有机硅封装材料的制备方法，本发明取氧化石墨烯水溶液与硅烷偶联剂混合后超声分散后，加入水合肼进行改性得改性氧化石墨烯，将改性氧化石墨烯加入到封装材料后，使得材料在固化后的内应力变化值范围较小，机械性能和耐冲击性能优良，产品导电性能优良；所述制备方法通过在制备过程中引入改性乙烯基聚硅氧烷，使得封装材料具有较好的耐紫外辐射性能和热性能。
摘要（英）：

The invention discloses a preparation method of a graphene composite organosilicone encapsulating material. The preparation method comprises mixing an aqueous solution of graphene oxide and a silane coupling agent, carrying out ultrasonic dispersion, adding hydrazine hydrate to modify the graphene oxide so that modified graphene oxide is obtained, and adding the modified graphene oxide into an encapsulating material. The encapsulating material has a small range of internal stress change after curing, excellent mechanical properties, excellent impact resistance and excellent electrical conductivity. Through use of modified vinyl polysiloxane in the preparation process, the encapsulating material has good resistance to ultraviolet radiation and thermal performances.

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