Nanotube reinforced fluorine-containing composites

摘要

Exemplary embodiments provide coating compositions having pseudo-fluorine surface and methods for processing and using the coating compositions. The coating composition can include, for example, a plurality of fluorine-containing resin fillers and a plurality of nanotubes (e.g., carbon nanotubes (CNTs)) dispersed in a polymer matrix that contains, e.g., one or more cross-linked polymers. The fluorine-containing resin fillers can provide a pseudo-fluorine surface for a low surface energy of the coating composition. The nanotubes can be dispersed in the polymer matrix to provide an improved mechanical robustness of the coating composition. The coating composition can be coated on a member surface, wherein the coated member can be, for example, a fuser member, a fixing member, a pressure roller, or a release agent donor member, used in an electrostatographic printing device or process.

主权项

1. An electorstatographic printing device comprising:
a component positioned in the electrostatographic printing device, the component chosen from a fuser member and a fixing member, the component including an outer coating composition formed thereon, the coating composition comprising:
a polymer matrix, wherein the polymer matrix comprises a fluoroelastomer comprising tetrafluorethylene units, hexafluoropropylene units and vinylidene fluoride units, wherein the fluoroelastomer is crosslinked with a bisphonol curing agent; anda plurality of nanotubes and a plurality of fluoride-containing resin filler dispersed in the polymer matrix wherein the plurality of fluorine-containing resin fillers-compromise one or more materials selected from the group consisting of plytetrafluoroethylene (PTFE), perfluoroalkoxy polymer resin (PFA), polyetheylenentetrafluoroethylene (PETFE), copolymers of tetrafluoroethylene (TFE) and perfluoro(ethyl vinyl ether) (PEVE), copolymers of tetrafluoroethylene (TFE) and perfluoro(methyl vinyl ether) (PMVE), copolymers of hexafluoropropylene (HFP) and vinylidene fluoride (VDF or VF2), terpolymers of tetrafluoroethylene (TFE), vinylidene fluoride (VDF) and hexafluoropropylene (HFP), and terpolymers of TFE, VF2, and HFP,wherein each of the plurality of nanotubes comprises a single wall carbon nanotube (SWCNT) or a multi-wall carbon nanotube (MWCNT), each carbon nanotube having an aspect ratio ranging from about 10 to about 1,000,000;wherein the plurality of fluorine-containing resin fillers is present in an amount ranging from about 70% to about 80% by weight of the coating composition, andwherein a surface of the outer coating composition comprises a micro-texture in addition to any roughening of the surface provided by the fluoride containing fillers, the micro-texture combined with the fluoride-containing resin fillers providing a lower surface free energy than a surface free energy of the same outer coating composition without the micro-texture; wherein the electrostatographic printing device is configured to employ the micro-textured surface for oil-less processing during electrostatographic printing.