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Preparation mechanism and characterization of a novel, regulable hollow phenolic fiber
Author(s) -
Zhang Dongqing,
Shi Jingli,
Guo Quangui,
Song Yan,
Liu Lang,
Zhai Gengtai
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25787
Subject(s) - thermogravimetric analysis , materials science , spinning , thermal stability , fiber , dissolution , scanning electron microscope , chemical engineering , melt spinning , composite material , core (optical fiber) , protein filament , ultimate tensile strength , fourier transform infrared spectroscopy , curing (chemistry) , polymer chemistry , engineering
A novel hollow phenolic fiber was successfully prepared by the dissolution of the uncrosslinked core of the partially crosslinking spun filament derived from the melt spinning of the phenolic resin. A series of hollow phenolic fibers with various degrees of hollowness were obtained through different preparation processes. The hollow phenolic fibers were characterized with scanning electron microscopy, infrared spectrometry, and thermogravimetric analysis. The formation of the hollow core in the hollow phenolic fibers was attributed to partial crosslinking of the filaments during the curing process; the prepared hollow phenolic fibers had high crosslinkage after the second cure, their thermal stability was as excellent as that of the solid phenolic fiber, and their hollowness could be regulated from 5 to 85%. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007