섬유

Graft Copolymerization of Polyester Fibers with a Fluorine-Containing Monomer.

  • 출판일1999.06
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 222
To improve grafting yield, researchers investigated the graft copolymerization of perfluoroalkanoyl monomer onto polyethylene terephthalate (PET) fibers using a two step grafting method and benzoyl peroxide as an initiator. Grafting polyester monofilaments with perfluorooctyl-2 ethanol acrylic monomer (AC8) (C(8)F(17)-C(2)H(4)-O-CO-CH = CH(2)) improved water resistance, oil resistance, chemical stability, and thermal stability while enhancing adhesion with a fluorine matrix. Measurements of such kinetic parameters as grafting percentage and rate as a function of monomer concentration, initiator concentration, reaction time, and reaction temperature demonstrated that the optimal graft yield occurred at a monomer concentration of 1.125 mols per liter and an initiator concentration of 1.8 10(-2) mols per liter. Crystallinity and surface topography characterized the effects of graft modification. 18 refs.
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