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Surface modification of ultra‐high molecular weight polyethylene fibers by chromic acid
Author(s) -
Li Weiwei,
Meng Li,
Wang Lun,
Mu Jingshan,
Pan Qiwei
Publication year - 2016
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6040
Subject(s) - contact angle , chromic acid , x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , surface modification , materials science , scanning electron microscope , fiber , polyethylene , ultimate tensile strength , ultra high molecular weight polyethylene , polyethylene glycol , surface roughness , polymer chemistry , composite material , chemical engineering , chemistry , organic chemistry , engineering
Ultra‐high molecular weight polyethylene (UHMWPE) fibers were modified by chromic acid. The effects of surface modification were evaluated with Fourier transform infrared spectroscopy (FTIR), X‐ray photoelectron spectroscopy (XPS), contact angle measurement, and scanning electron microscope (SEM). The results showed that both the content of O‐containing functional groups and surface roughness of modified fibers increased. The polar groups on the modified fiber surface decreased the contact angles with water and ethylene glycol, as evidenced by contact angle measurement. The tensile test results showed the strength and the elongation at break of UHMWPE fibers decreased but the modulus increased after chromic acid modification. Copyright © 2016 John Wiley & Sons, Ltd.