Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Graft Copolymerization of Methacrylonitrile(MAN) onto Kevlar 49 Fiber Surface

Kevlar 49 섬유 표면에 대한 MAN의 Graft 공중합에 관한 연구

  • 김은영 (부산대학교 공과대학 섬유공학과) ;
  • 강주영 (부산대학교 공과대학 섬유공학과) ;
  • 최재혁 (부산대학교 공과대학 섬유공학과) ;
  • 김한도 (부산대학교 공과대학 섬유공학과)
  • Published : 1995.03.01
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Abstract

The grafting of methacrylonitrile(MAN) onto Kevlar 49 filament surface was carried out by anionic polymerization using sodium methylsulfinylcarbanion formed from sodium hydride and dimethyl sulfoxide(DMSO). The effects of reaction conditions on the grafting percentage(GP) and on the tensile strength of the fiber were investgated. GP marktedly increased with increasing metalation time, and NaH concentration, polymerization temperature and time. The tensile strength of fiber decrased with increasing metalation time, and NaH concentration, polymerization temperature and time. The optimum conditions to increase over 40% of GP with below 10% reduction rate of tensile strength of fiber : NaH concentration ; 30.6 mmol/l/0.5g Kevlar, metalation time : 10min, polymerization tempera- ture : 5$0^{\circ}C$, polymerization time: 20 sec, monomer concentration : 1.12mol/l/0.5g Kevlar.

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