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Effects of plasma treatment of carbon fibers on interfacial properties of BMI resin composites
Author(s) -
Zhuoda Jiang
Publication year - 2019
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.6600
Subject(s) - wetting , x ray photoelectron spectroscopy , composite material , materials science , contact angle , fiber , surface roughness , surface energy , surface modification , plasma , surface finish , dielectric barrier discharge , dielectric , atmospheric pressure plasma , chemistry , chemical engineering , physics , optoelectronics , quantum mechanics , engineering
High performance continuous fiber surface modification by inductively coupled RF plasma (ICP) and dielectric barrier discharge (DBD) low temperature plasma were conducted. X‐ray photoelectron spectroscopy (XPS) and other analytical testing methods systematically studied plasma treatment time, discharge power, discharge pressure, etc, on fiber surface state, surface composition, and surface shape changes in the appearance and wetting properties. The results show that after plasma treatment the surface of the fiber is grafted with a large number of polar functional groups such as carboxyl groups and hydroxyl groups. The surface roughness increases, the surface free energy increases, and the fiber wetting property is significantly improved, resulting in improvement in interlaminar shear strength (ILSS) between the fiber and the resin matrix. Finally, the surfaces of the fibers and its relationship with interfacial properties of fiber reinforced bismaleimide composites are also discussed.