Perfluoroelastomer composition and sealing material
Provided are a perfluoroelastomer composition containing a perfluoroelastomer, a peroxide crosslinking agent, a co-crosslinking agent that is a diolefin compound, and an organic pigment; and a sealing material containing a crosslinked product of the perfluoroelastomer composition.
1. A perfluoroelastomer composition comprising:
a perfluoroelastomer;
a peroxide crosslinking agent;
a co-crosslinking agent that is a diolefin compound; and
an organic pigment,
wherein a content of the organic pigment is greater than or equal to 0.05 parts by weight and less than 2 parts by weight with respect to 100 parts by weight of the perfluoroelastomer,
the perfluoroelastomer is a tetrafluoroethylene (TFE)-perfluoro (alkyl vinyl ether)-based copolymer,
the co-crosslinking agent is a diolefin compound which is represented by the following formula (1):
CH 2 ═CH—(CF 2 ) n —CH═CH 2 (1),
wherein n is an integer of 4 to 12,
the perfluoroelastomer composition further comprises polytetrafluoroethylene particles.
2. The perfluoroelastomer composition according to claim 1 , wherein the perfluoroelastomer composition does not contain an inorganic filler.
3. A sealing material comprising a crosslinked product of the perfluoroelastomer composition according to claim 1 .