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Fuser member coating having self-releasing fluorocarbon matrix outer layer

A fuser, self-release technology, used in coatings, instruments, electrical recording processes using charge patterns, etc., can solve problems such as bonding and lamination difficulties

Inactive Publication Date: 2015-07-22
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For existing fixing materials such as from DuPont The current problem with the material is the need for a PDMS (polydimethylsiloxane)-based fuser oil to release toner and other contaminants
This fixing oil presents difficulties for the end use of printed materials such as bonding, lamination or other processes requiring surface adhesion

Method used

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  • Fuser member coating having self-releasing fluorocarbon matrix outer layer
  • Fuser member coating having self-releasing fluorocarbon matrix outer layer
  • Fuser member coating having self-releasing fluorocarbon matrix outer layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Perfluorooctylsiloxane / fluoroelastomer crosslinked with aminosilicone crosslinkers Composite coating

[0057] by adding solid -GF fluoroelastomers were dissolved in methyl isobutyl ketone (MIBK) at room temperature for more than 18 hours and mixed with 5pph ( -1% by weight of GF) of AO700 crosslinker (aminoethylaminopropyltrimethoxysilane crosslinker from Gelest), 5-20pph of perfluorooctylsiloxane (tridecafluoro-1 , 1,2,2-tetrahydro-octyl-1-triethoxysilane from United Chemical Technologies) and 24 pph of methanol were combined to produce a solid containing 17% by weight - Fluoropolymer dispersion of GF fluoroelastomer. The dispersion was coated on an aluminum substrate by a bar coater and the coating was allowed to dry in air to form a 25-30 μm layer of fluoroelastomer. After drying, the coating was cured by stepwise heat treatment at temperatures between 49°C and 218°C over 24 hours. The resulting coating is robust and resistant to scratches when MIBK is app...

Embodiment 2

[0061] Perfluorooctylsiloxane / fluoroelastomer crosslinked with BPA-silicone crosslinker Body Composite Coating

[0062] It can be expected that the composite coating can be composed of perfluorooctylsilane chains and -GF is prepared in combination with a BPA-siloxane crosslinker. will be 2.0 copies of -GF solution was dissolved in 75 parts of methyl isobutyl ketone (MIBK) and dissolved at room temperature for 18 hours. Then, mix 0.031 parts of MgO and 0.021 parts of Ca(OH) in 25 parts of MIBK 2 , sonicate to disperse the oxide, and add the mixture to the solution. Then add 0.362 parts of silane crosslinking agent, bisphenol-AF-propylmethyldiisopropoxysilane (see formula X, wherein X=F, n=3, R=CH(CH 3 ) 2 , R'=CH 3 ) and 0.028 parts of triphenylbenzylphosphorous chloride, and the suspension mixture was stirred at reflux temperature for about 20 hours. The mixture was filtered to remove suspended oxide particles, and the filtrate was added dropwise to excess isoprop...

Embodiment 3

[0065] Perfluoroalkaneamine / Fluoroelastomer Compounds Crosslinked with Aminosilicone Crosslinkers coating

[0066] It can be expected that composite coatings can be composed of perfluoroalkane chains and -GF is prepared in combination with an aminosilicone crosslinker. by adding solid -GF fluoroelastomers were dissolved in methyl isobutyl ketone (MIBK) at room temperature for more than 18 hours and mixed with 5pph ( - one percent by weight of GF) AO700 crosslinker (aminoethylaminopropyltrimethoxysilane crosslinker from Gelest, see formula XI where n=3, R=CH 3 ), 5-20pph of perfluoroalkaneamine such as perfluorooctylamine (tridecafluoro-1-amino-1,1,2,2-tetrahydro-octane) and 24pph of methanol combined to prepare 17% (weight )s solid type - Fluoropolymer dispersion of GF fluoroelastomer. The dispersion is then deposited on a substrate (such as silicon, aluminum, glass, or another heat-resistant substrate) by bar coater, flow coater, or other suitable coating techniq...

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Abstract

A self-releasing fuser member and image apparatus having the fuser member, and wherein the fuser member includes a substrate, and thereover an outer layer polymer matrix having a surface, wherein the outer layer polymer matrix includes a fluoropolymer material and fluorocarbon chains, wherein the fluorocarbon chains are bonded to said fluoropolymer material, and wherein the fuser member decreases or eliminates the need for fusing oils as it is self-releasing.

Description

technical field [0001] The disclosed embodiments generally relate to fuser elements that may be used in xerographic devices. In an embodiment, the outer layer of the fuser element comprises a polymer matrix comprising a fluoropolymer having fluorocarbon chains attached to the underlying fluoropolymer layer. In an embodiment, the fluoropolymer layer comprises a fluoroelastomer cured by a silicone curing system. Additionally, in embodiments, the polymeric matrix layer comprises siloxane-terminated fluorocarbon chains, wherein the siloxane-terminated fluorocarbon chains are linked in the fluoroelastomer or fluoropolymer layer by siloxane functional groups. This outer layer can be used in roll or belt applications. Methods for generating this outer layer are also described herein. In embodiments, the outer layer is self-releasing, reducing or eliminating the need for fixing oil. Background technique [0002] In a typical xerographic printing unit, an optical image of the ori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20C09D127/22
CPCG03G15/2057Y10T428/31544Y10T428/3154C09D127/12
Inventor 卡洛琳·穆尔拉格胡南星
Owner XEROX CORP