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Silica Sol/Gel Based Nano Structured Hard Coats for Organic Photoconductors

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Objective of the present investigation was the development of a scratch resistant and anti-abrasion layer for organic photo-conductors which does not influence the electrophotographic properties like charge transporting properties and print quality A new class of hybrid polymers based on classical sol/gel materials has been developed. This two component material with covalently bonded functionalized silica nano particles in an epoxy matrix made of poly-functional epoxy components produces closed networks and exhibits excellent durability against liquid toner materials. By employing this material as a top coat on OPC drums, hardness and scratch resistance can be improved without having significant impact on printing properties such as the replication of single dots in high resolution digital printing.

Document Type: Research Article

Publication date: 2007-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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