Guangdong Suqun New Material Co., Ltd

Zhoujie Gu

Hao Wang

Zeming Ren

Teng Lv

Xiaoyong Guo

A method for preparing expanded foamed graphite film includes the following steps: Step A: impregnating a synthetic graphite film into an intercalator for an interlayer intercalation treatment to prepare an intercalated graphite film; Step B: performing a thickness-limited expansion and foaming to the intercalated graphite film obtained in Step A, with an expansion ratio y of 2-25, to obtain an expanded foamed intercalated graphite film.

Method for preparing expanded foamed graphite film

The present application disclose a method for preparing an oriented heat conducting sheet, which includes the following steps: Step S, preparing a fluid composition for the heat conducting sheet; Step S, placing the fluid composition obtained in the step Sin an orientation molding device, applying a circumferential high-speed shear force to the fluid composition layer by layer to enable thermal conducting fillers in the fluid composition to be oriented along a shear direction to form an oriented thin-layer composition, and collecting the thin-layer composition layer by layer in a die to form a continuous multi-layer aggregate; Step S, heat curing the multi-layer aggregate to obtain an oriented composition block; and S, slicing the oriented composition block along the direction perpendicular to an orienting direction of the oriented composition block to obtain an oriented heat conducting sheet.

Growing community of inventors

Guangdong, China

Zhoujie Gu