시스-코어 복합방사 폴리에틸렌/폴리프로필렌 모노필라멘트 분자 구조 변화에 관한 연구

Title
시스-코어 복합방사 폴리에틸렌/폴리프로필렌 모노필라멘트 분자 구조 변화에 관한 연구
Other Titles
Studies on Molecular Structure Changes in Polyethylene/Polypropylene Sheath-Core Monofilament
Author(s)
오태환서영호임영민한성수남영식[남영식]남승민[남승민]함진수[함진수]
Keywords
sheath-core; PE; PP; bicomponent; monofilament
Issue Date
201404
Publisher
한국섬유공학회
Citation
한국섬유공학회지, v.51, no.2, pp.70 - 75
Abstract
In this study, changes in the molecular structure of a sheath-core polyethylene (PE)/polypropylene (PP) bicomponentmonofilament were investigated using different fractions of sheath or core components. The melt complex viscosity ofsheath PE showed a greater shear thinning behavior than core PP. For both as-spun and drawn filaments, the crystal structureof sheath PE developed better than that of core PP. In the as-spun monofilament, the core PP crystal structure did not developwell, while sheath PE showed a more developed crystal structure. Further, sonic velocity indicating the molecular orientationincreased upon drawing but was rarely dependent on the sheath PE fraction for both as-spun and drawn monofilaments.
URI
http://hdl.handle.net/YU.REPOSITORY/32388
ISSN
1225-1089
Appears in Collections:
공과대학 > 화학공학부 > Articles
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