Premium
Effect of calcium chloride on the surface properties of K evlar fiber
Author(s) -
Li Cheng,
Zhen Qiang,
Luo Zhu,
Lu Shengjun
Publication year - 2015
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.41358
Subject(s) - kevlar , fiber , scanning electron microscope , composite material , materials science , fourier transform infrared spectroscopy , epoxy , adhesive , x ray photoelectron spectroscopy , synthetic fiber , surface roughness , chloride , chemical engineering , layer (electronics) , metallurgy , engineering
In this study, we present a new approach to modify the surface of Kevlar‐29 fiber by the complexation. The surface of Kevlar‐29 fiber was treated by calcium chloride (CaCl 2 ) ethanol solution. The structure and morphology of the modified Kevlar‐29 fiber were characterized by Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy, X‐ray diffraction instrument, atomic force microscopy, and scanning electron microscopy. The results showed that CaCl 2 treatment's method can cause changes of the chemical groups of Kevlar‐29 fiber. The amino‐groups of Kevlar‐29 fiber were freed and the contents of ‐C‐N‐ increased. The changes can improve the surface roughness of Kevlar‐29 fibers. This can increase the adhesive of Kevlar fiber/epoxy composites. From the ILSS and mechanical properties values, it can be concluded that treatment with 5 wt % CaCl 2 for 5 h is the optimum complexation condition. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41358.