Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Preparation of Cladding Polymers for Plastic Optical Fibers - Miscibility and Interfacial Adhesion of PMMA/THV Blends -

플라스틱 광섬유용 클래드 재료 개발 - PMMA/THV 블렌드의 상용성과 계면 접착력 -

  • Park, Eun-Ju (Department of Chemical Engineering and Center for Photonic Materials & Devices, Chonnam National University) ;
  • Park, In-Cheol (Department of Chemical Engineering and Center for Photonic Materials & Devices, Chonnam National University) ;
  • Lee, Moo-Sung (Department of Chemical Engineering and Center for Photonic Materials & Devices, Chonnam National University) ;
  • Park, Min (Polymer Hybrids research Center, Korea Institute of Science and Technology)
  • 박은주 (전남대학교 응용화학공학부 광소재부품연구센터) ;
  • 박인철 (전남대학교 응용화학공학부 광소재부품연구센터) ;
  • 이무성 (전남대학교 응용화학공학부 광소재부품연구센터) ;
  • 박민 (한국과학기술원 고분자하이브리드센터)
  • Published : 2008.12.31
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Abstract

We investigated the miscibility of poly(methyl methacrylate) (PMMA) and random copolymers of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride (THV) blends and their interfacial adhesion as part of the development of cladding materials for PMMA based plastic optical fiber. Three different types of THV with different copolymer composition were used as candidates for them. PMMA/THV blends being melt-mixed at $240^{\circ}C$ showed typical immiscible morphology and the glass transition temperatures of the component polymers did not change after mixing. However, tie chains connecting matrix and dispersed phase were identified when THV with high content of vinylidene fluoride, i.e., THV220 was used. In spite of the intrinsic immiscibility of PMMA/THV blends the interfacial adhesion obtained from peel test was above $10^4N/m^2$ at the adhesion temperature of $240^{\circ}C$ and increased with increasing the temperature for THV220. From the melt viscosity data of the polymers it was recommended that the extrusion temperature of THV should be higher than that of PMMA in order to obtain smooth interface between core and cladding layer.

Keywords

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