Methods for forming functionalized carbon black with amino-terminated polyfluorodimethylsiloxane for printing
AssigneeXerox Corporation
InventorsMandakini Kanungo, Anton Grigoryev, David J. Gervasi, Santokh S. Badesha
Life of this patent
Estimating the term…
Abstract
A method for forming functionalized carbon black useful for uniform dispersion in a surface material of a printing system component includes providing carbon black; providing a fluoropolymer having a terminal amino group; and mixing the amino-terminated fluoropolymer and the carbon black, wherein the fluoropolymer is amino-terminated PDMS.
Claims10
A method for forming functionalized carbon black useful for uniform dispersion in a surface material of printing system components, comprising:
- providing carbon black;
- providing a fluoropolymer having a terminal amino group;
- and
- mixing the amino-terminated fluoropolymer and the carbon black, wherein in the fluoropolymer is amino-terminated PDMS;
- providing nitric acid;
- mixing the carbon black with the nitric acid to oxidize a surface of the carbon black whereby oxidized carbon black is formed;
- washing the oxidized carbon black with deionized water until a pH of the carbon black in solution is 5;
- drying the carbon black using vacuum at 150 degrees Celsius for one hour;
- the mixing the amino-terminated fluoropolymer and the carbon black further comprising the carbon black being the vacuum dried, oxidized carbon black, the amount of dried, oxidized carbon black lying in a range of 0.5 g to 1.0 g, the amount of amino-terminated fluoropolymer being 10 g, and an amount of the coupling agent being 1 g.
A method for forming an imaging member having a functionalized carbon black filler component in a surface thereof, comprising:
- providing carbon black;
- providing a fluoropolymer having a terminal amino group;
- and
- mixing the amino-terminated fluoropolymer and the carbon black, wherein in the fluoropolymer is amino-terminated PDMS;
- providing nitric acid;
- mixing the carbon black with the nitric acid to oxidize a surface of the carbon black whereby oxidized carbon black is formed;
- washing the oxidized carbon black with deionized water until a pH of the carbon black in solution is 5;
- drying the carbon black using vacuum at 150 degrees Celsius for one hour;
- the mixing the amino-terminated fluoropolymer and the carbon black further comprising the carbon black being the vacuum dried, oxidized carbon black, the amount of dried, oxidized carbon black lying in a range of 0.5 g to 1.0 g, the amount of amino-terminated fluoropolymer being 10 g, and an amount of the coupling agent being 1 g.
Dependencies are inferred from the claim text.