expandable graphite powder

Under appropriate conditions, acid,
alkali metal, salt, can be inserted
into the flake graphite layers,and
combine with carbon atoms,to form
new chemical phase——Graphite
layers of compound,this compound
could break down instantly when
the temperature become fit.
Expand the graphite layer along the
C axis to form a new substance,and
that is the expandable graphite.
expandable graphite powder