Different methods were used to test the absorption capacity for different oiliness with expanded graphite

so as to explore the relations between the structure of expanded graphite and its saturated absorption.The expanded graphite′s surface area is relatively large

and its pore structure is mainly charactized by big or medium-sized holes;which can be seen by the scanning images of electron microscope.Vermicular graphite has a surface structure different from its internal structure

i.e.the typical lamellar s...