COMPOSITION FOR A SEALING MEMBER, AND SEALING MEMBER
[Solving Means] A composition for a sealing member includes: 100 parts by weight of an uncrosslinked fluorine rubber component; and 0.5 to 50 (inclusive) parts by weight of a particulate resin. The particulate resin includes a compatible portion and a lubrication portion, the compatible portion havi...
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Zusammenfassung: | [Solving Means] A composition for a sealing member includes: 100 parts by weight of an uncrosslinked fluorine rubber component; and 0.5 to 50 (inclusive) parts by weight of a particulate resin. The particulate resin includes a compatible portion and a lubrication portion, the compatible portion having compatibility with the fluorine rubber component, the lubrication portion having lubricity with respect to the fluorine rubber component. During molding of the composition for a sealing member, crosslinking of the fluorine rubber component progresses and at least a part of the particulate resin moves to a surface due to an action of the lubrication portion. As a result, a surface layer portion including a compatible portion and a lubrication portion is formed on a surface of a molded sealing member. The surface layer portion has high durability due to an action of the compatible portion, and imparts high slidability to the sealing member through the action of the lubrication portion. |
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