▎ 摘　　要

NOVELTY - A sealing material comprises 20-80 wt.% chemically expanded vermiculite, 0-50 wt.% thermally expanded vermiculite, 0-50 wt.% talc, 0-30 wt.% glass fiber, 0-5 wt.% graphene oxide, 0-5 wt.% dispersant, and 0-5 wt.% siloxane. USE - Sealing material for high temperature fuel cell. ADVANTAGE - The sealing material can withstand high temperatures up to 1000 degrees C, and has excellent insulation property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the sealing material.