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Comparison of infrared spectroscopic methods for the quantitative analysis of epoxy resins used in carbon-epoxy composite materials

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1366/0003702884429085
AuthorSearch for: 1; Search for: 1; Search for: 1; Search for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Three different methods of obtaining the infrared spectrum of carbon-epoxy prepreg for quality control purposes are critically evaluated with respect to their suitability for quantitative analysis. They are: transmission using a cast film of resin, attenuated total reflection (ATR) using prepreg, and diffuse reflection (DR) using prepreg. The cast film method is subject to significant error resulting from nonuniform film thickness; careful sample preparation is necessary in order to obtain acceptable results. The ATR method is faster and easier to use than the transmission method and gives more reproducible results; the use of a 45° germanium prism is recommended. The DR method is not suitable for quantitative work because of complications arising from front-surface reflection effects; it can be very useful, however, as a qualitative method.
Publication date
PublisherSage
In
  • Applied Spectroscopy 42, no. 5: 761–769.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 27868
NRC-IGM87AP-101-593-G
NPARC number23004401
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Record identifier46b15b0f-29e9-4951-bb6d-e524a466b982
Record created2018-10-31
Record modified2020-03-17
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