Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting

Title
Enhanced mechanical properties and pre-tension effects of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting
Author(s)
이유진[이유진]김병석[김병석]홍주형[홍주형]박순지김형섭[김형섭]김익수[김익수]
Keywords
POLYACRYLONITRILE NANOFIBERS; POLYMER NANOFIBERS; FIBERS; FABRICATION; BEHAVIOR
Issue Date
201201
Publisher
SPRINGER
Citation
JOURNAL OF POLYMER RESEARCH, v.19, no.2
Abstract
We studied the mechanical properties of polyurethane (PU) nanofiber filaments prepared by electrospinning and dry twisting, and compared them with those of the corresponding nonwoven PU nanofiber webs. The morphologies and mechanical properties of the nonwoven PU nanofiber webs and the corresponding PU nanofiber filaments were investigated by scanning electron microscopy (SEM) and through the use of a universal testing machine (UTM), respectively. The tensile strength and the Young's modulus of the nanofiber filaments improved dramatically as the number of twists or the width of the nanofiber webs was increased compared with the nonwoven PU nanofibers. Moreover, it was found that applying pre-tension was an effective method of increasing the mechanical properties of PU nanofiber filaments.
URI
http://hdl.handle.net/YU.REPOSITORY/30086http://dx.doi.org/10.1007/s10965-011-9774-4
ISSN
1022-9760
Appears in Collections:
생활과학대학 > 의류패션학과 > Articles
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