Electrophotographic member and electrophotographic image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Takenaga, Keisuke Abe, Kenji Onuma, Kouichi Uchida
Life of this patent
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Abstract
An electrophotographic member capable of further reducing adhesion of a toner to an outer surface. The electrophotographic member comprises a base layer and a surface layer laminated in this order in a thickness direction of the electrophotographic member, the surface layer containing a binder resin, perfluoropolyether, and an ionic liquid, a content of the perfluoropolyether with respect to the binder resin being 20% by mass or more and 100% by mass or less, and a contact angle of a surface on a side of the surface layer that is opposite to a side facing the base layer with respect to hexadecane being 65° or more.
Claims11
An electrophotographic member comprising a base layer and a surface layer laminated in this order in a thickness direction of the electrophotographic member, the surface layer containing a binder resin, perfluoropolyether dispersed in the binder resin, and an ionic liquid,
- a content of the perfluoropolyether with respect to the binder resin being 20% by mass or more and 100% by mass or less, and
- the ionic liquid being constituted by a cation and an anion,
- the anion being represented by the following Formula (1),
- wherein m and n each independently represent an integer of 1 or more and 4 or less,
- the cation being represented by the following formula (8),
- wherein R16 to R18 each independently represent a hydrocarbon group having 1 to 8 carbon atoms, R19 represents hydrogen or a methyl group, and I represents an integer of 1 or more and 8 or less,
- wherein the ionic liquid is dispersed in the binder resin so that the cation of the ionic liquid interacts with the perfluoropolyether.
An electrophotographic member comprising a base layer and a surface layer laminated in this order in a thickness direction of the electrophotographic member,
- the surface layer containing a binder resin, perfluoropolyether dispersed in the binder resin, and an ionic liquid constituted by a cation and an anion,
- the ionic liquid being dispersed in the binder resin so that the cation in the ionic liquid interacts with the perfluoropolyether,
- a content of the perfluoropolyether with respect to the binder resin being 20% by mass or more and 100% by mass or less, and
- a contact angle of a surface on a side of the surface layer that is opposite to a side facing the base layer with respect to hexadecane being 65° or more,
- wherein
- the ionic liquid has an anion and a cation,
- the anion being represented by the following Formula (1)
- wherein m and n each independently represent an integer of 1 or more and 4 or less, and
- the cation being represented by the following Formula (8):
- wherein R16 to R18 each independently represent a hydrocarbon group having 1 to 8 carbon atoms, R19 represents hydrogen or a methyl group, and I represents an integer of 1 or more and 8 or less.
An electrophotographic image forming apparatus comprising an electrophotographic member,
- wherein the electrophotographic member comprises a base layer and a surface layer laminated in this order in a thickness direction of the electrophotographic member,
- the surface layer contains a binder resin, perfluoropolyether dispersed in the binder resin, and an ionic liquid,
- a content of the perfluoropolyether with respect to the binder resin is 20% by mass or more and 100% by mass or less, and
- the ionic liquid being constituted by a cation and an anion,
- the anion being represented by the following Formula (1),
- wherein m and n each independently represent an integer of 1 or more and 4 or less, and wherein the ionic liquid is dispersed in the binder resin so that the cation in the ionic liquid interacts with the perfluoropolyether, and
- the cation being represented by the following formula (8)
- wherein R16 to R18 each independently represent a hydrocarbon group having 1 to 8 carbon atoms, R19 represents hydrogen or a methyl group, and I represents an integer of 1 or more and 8 or less.
Dependencies are inferred from the claim text.