FIXING MEMBER, FIXING DEVICE, AND IMAGE FORMING APPARATUS

摘要

A fixing member is provided, including a release layer containing a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), wherein a content of the perfluoroalkyl vinyl ether (PAVE) based on all PFAs in the release layer is 3.0 mol % or more and 5.8 mol % or less, and an elastic layer having an indentation elastic modulus EITs at a surface thereof and an indentation elastic modulus EITc at a position in a depth of 50 μm from the surface, EITs and EITc being measured at a temperature of 150° C., and EITs is larger than EITc and EITc being 17 MPa or more and 24 MPa or less.

主权项

1. A fixing member, comprising:
a substrate; an elastic layer; and a release layer on the elastic layer, in this order, wherein the release layer contains a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, wherein a content of the perfluoroalkyl vinyl ether based on all tetrafluoroethylene-perfluoroalkyl vinyl ether copolymers in the release layer is 3.0 mol % to 5.8 mol %, and wherein the elastic layer has an indentation elastic modulus EITs at a surface thereof and an indentation elastic modulus EITc at a position at a depth of 50 μm from the surface, EITs and EITc being measured at a temperature of 150° C., such that EITs is larger than EITc, and EITc is 17 MPa to 24 MPa.