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US 7,678,489 B2Granted
Process for producing a fuel cell separator
AssigneeNichias Corporation
InventorsHideyuki Shishitani, Atsushi Murakami
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Abstract
The present invention provides a separator for fuel cell, which is a molded article including a resin and a conductive filler, wherein a contact angle of water on a surface of the separator for fuel cell is from 20 to 85°, and a process for producing the separator for fuel cell.
Claims7
A process for producing a separator for a fuel cell, which comprises the steps of:
- (a) mixing a resin with a conductive filler to obtain a mixture, wherein said resin comprises a thermosetting resin including an epoxy resin, and wherein said conductive filler comprises an expanded graphite;
- (b) molding the mixture to obtain a molded article;
- and
- (c) subjecting a surface of the molded article to a dry blast treatment carried out by using particles having a diameter of from 5 to 1,000 μm until the contact angle of water on a surface of the separator for a fuel cell is from 20 to 85°.
1 more element
Dependencies are inferred from the claim text.