Thermo-gravimetric analysis method to determine the fiber volume fraction for PAN-based CFRP considering oxidation of carbon fiber and matrix

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The properties of fiber reinforced composites are mainly determined by the fraction of reinforcement and matrix. Thus, to design a system based on composite materials, it is vital to carefully measure the volume fractions of the composites with a proper method. Digestion by strong acid or ignition at high temperature in an oxidizing environment are conventional for measuring content fractions. In essence, these methods assume that the reinforcement does not lose weight by digestion or ignition. However, by neglecting reported vulnerable oxidization characteristics of carbon fiber, these conventional methods result in inaccurate fiber volume fractions of carbon fiber/epoxy composites. In this study, an effective and accurate method, having only 2 steps in measuring process and 1.5%p maximum error, for determining the fiber volume fractions of two different PAN (Polyacylonitrile)-based carbon fiber reinforced composites via thermo-gravimetric analysis was developed and subsequently verified using the results from 80 microscopic images.
Publisher
ELSEVIER SCI LTD
Issue Date
2017-07
Language
English
Article Type
Article
Keywords

COMPOSITES; BEHAVIOR

Citation

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, v.102, pp.40 - 47

ISSN
1359-835X
DOI
10.1016/j.compositesa.2017.07.024
URI
http://hdl.handle.net/10203/227224
Appears in Collection
AE-Journal Papers(저널논문)
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