Tokyo Institute of Technology

Denso Corporation

Daikin Industries, Ltd.

Tokai National Higher Education and Research System

Masatoshi Shioya

Tsuyoshi Noguchi

Kenta Kubo

Takashi Hasegawa

Daisuke Kimura

Haruhiko Watanabe

Shota Chatani

Seiichiro Washino

Shinya Maruta

Daichi Sakurai

Toshihira Irisawa

Kentaro Takagi

An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.

Actuator

The invention provides a fluoroelastomer composition that can be crosslinked at an industrially sufficient rate without the use of a graphene having specific surface properties and can provide a fluoroelastomer molded article having higher tensile strength and better abrasion resistance than conventional fluoroelastomer molded articles even though having a similar tensile modulus to conventional fluoroelastomer molded articles. The fluoroelastomer composition contains a fluoroelastomer that contains a crosslinkable group-containing monomer unit and an elongated sheet-shaped graphene. The graphene exhibits a ratio (L/W) of a maximum length (L) and a width (W) of 2 to 10, and the graphene exhibits a ratio (L/T) of the maximum length (L) and a thickness (T) of 1&#xd7;10to 1&#xd7;10.

Fluoroelastomer composition and molded article thereof

Growing community of inventors

Tokyo, Japan

Masatoshi Shioya