섬유

surface potential of cellulose

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 242
charge/ph isotherms were determined for various cellulose fibers: cotton linters, bleached sulfate and unbleached sulfate pulp the charge was determined as a function of ph in 1. 0, 10** $minus$ **1, 10** $minus$ **2 and 10** $minus$ **3 mol dm** $minus$ **3 nacl the effect of various cations on the charge was also investigated the surface areas of the fibers were determined by bet nitrogen adsorption; the pulps were initially in a 'never-dried' state and for the bet work they were specially prepared using solvent-exchange techniques whereby all the water was replaced by dry pentane. the surface areas of the fibers were also obtained using the method of negative adsorption: corrections for low surface potential were applied using gouy-chapman theory and the charge/ph isotherms surface areas obtained by these two entirely different methods are compared. (edited author abstract) 10 refs
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