Effect of surface treatment of pitch‐based carbon fiber on mechanical properties of polyethernitrile composites
作者:
Masaaki Itoi,
Yukiharu Yamada,
R. Byron Pipes,
期刊:
Polymer Composites
(WILEY Available online 1992)
卷期:
Volume 13,
issue 1
页码: 15-29
ISSN:0272-8397
年代: 1992
DOI:10.1002/pc.750130104
出版商: Society of Plastics Engineers
数据来源: WILEY
摘要:
AbstractThe effect of surface treatment of pitch‐based carbon fiber on a new engineering thermoplastic resin, polyethernitrile, was investigated. Pitch‐based carbon fiber (CF) was treated in two separate oxidizing solutions. In the first method, a nitric acid solution was used as an oxidizing agent. In the second method, a hydrogen peroxide solution was used. Both methods demonstrated that each of these solutions was a satisfactory oxidizing agent for the pitch‐based CF. These treated fibers were combined with polyethernitrile polymer by the powder impregnation method, and unidirectional laminates were obtained. Improvements in both interlaminar shear strength and transverse flexural strength were achieved. The laminates fabricated from the treated CF maintained the same longitudinal flexural strength as laminates from the untreated control. In addition, scanning electron micrographs of composite fracture surfaces also showed excellent bonding of the treated
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