섬유

chemical modification of carbon fibres by esterification - optimization of fibre pretreatment

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 313
electrochemically oxidized pan-based carbon fibres were modified by attachment of an m-dinitrobenzene group. chemical modification was performed by esterification of the $minus$ oh groups of the oxidized carbon surface with 3,5-dinitrobenzoyl chloride. the higher modification extent was achieved in the case of d.c. oxidized carbon fibres, which bear a large number of $minus$ oh groups. the attachment of the dinitrobenze species was supported by cyclic voltammetry carried out on the modified carbon fibre electrodes in aqueous solutions. the quantity of attached m-dinitrobenzene groups was determined polarographically, after hydrolysis of the esteric bonds; it corresponds to a charge density of ca 0.2 kah kg** $minus$ **1 carbon fibres, which is of the order of magnitude of battery electrodes. (author abstract) 13 refs
이전글 다음글 목록