REINFORCED GRAPHITE FOIL AND METHOD OF MAKING SAID FOIL Russian patent published in 2011 - IPC C04B35/536 C04B35/83 

FIELD: chemistry.

SUBSTANCE: invention relates to composite materials based on thermally expanded graphite, particularly reinforced sheet materials, and can be used in making lining and other articles, for example flexible heaters, pipes, lining for high-temperature furnaces etc. The reinforced graphite foil contains thermally expanded graphite and reinforcing elements in form of threads made from carbon fibre with linear density of 10-35 tex, uniformly distributed on the width of the foil and lying along the fabric of the foil. Thickness of the reinforcing elements is not more than 75% of the thickness of the reinforced foil. The method of making said foil involves making a workpiece, having two layers of thermally expanded graphite with density of 0.05-0.20 g/cm³ and carbon fibre threads uniformly distributed in between and lying along the fabric of the foil, the said threads having linear density of 10-35 tex, followed by moulding the foil from the said workpiece.

EFFECT: obtaining uniform and strong reinforced foil.

4 cl, 1 ex, 1 tbl