FIXING MEMBER, FIXING APPARATUS, IMAGE FORMING APPARATUS, AND METHOD OF PRODUCING FIXING MEMBER

摘要

A fixing member including a surface layer having high resistance to wear is provided. The fixing member includes a surface layer containing polytetrafluoroethylene (PTFE) and a fluorine resin having a melting point lower than that of the PTFE. In the DSC (endothermic) curve obtained by heating a sample of the surface layer at a temperature raising rate of 20° C./min with a differential scanning calorimeter (DSC), an endothermic peak 1 having a peak top in the temperature range of 330° C. or more and 340° C. or less, and an endothermic peak 2 having a peak top in the temperature range lower than that of the endothermic peak 1 are present, and the sum ΔH of the amount of heat of fusion based on the endothermic peak 1 and the amount of heat of fusion based on the endothermic peak 2 is 40 J/g or more and 55 J/g or less.

主权项

1. A fixing member comprising:
a surface layer containing polytetrafluoroethylene (PTFE) and a fluorine resin having a melting point lower than that of the PTFE,
wherein in a DSC (endothermic) curve obtained by heating a sample of the surface layer at a temperature raising rate of 20° C./min with a differential scanning calorimeter (DSC), an endothermic peak 1 having a peak top in the temperature range of 330° C. or more and 340° C. or less, and an endothermic peak 2 having a peak top in the temperature range lower than that of the endothermic peak 1 are present, and
a sum ΔH of an amount of heat of fusion based on the endothermic peak 1 and an amount of heat of fusion based on the endothermic peak 2 is 40 J/g or more and 55 J/g or less.