Using XPS to Investigate Fiber/Matrix Chemical Interactions in Carbon-fiber-reinforced Composites

✍ Scribed by Weitzsacker, Cara L.; Xie, Ming; Drzal, Lawrence T.

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 437 KB
• Volume: 25
• Category: Article
• ISSN: 0142-2421
• DOI: 10.1002/(sici)1096-9918(199702)25:2<53::aid-sia222>3.0.co;2-e

✦ Synopsis

With the uses of composites expanding into areas from aerospace to recreation, di †erent matrices are being investigated to tailor the composites to speciÐc uses. The degree of adhesion between the Ðber and matrix has been recognized to be a critical factor in determining the performance of Ðber-reinforced composites. Indirect analysis of the matrix/Ðber interface is possible using model compounds which represent functional groups present in the matrix system. Model compounds based on epoxy, polyimide, polyphenylene sulÐde and vinyl ester matrices have been investigated to characterize the chemical reactions at the Ðber/matrix interface. X-ray photoelectron spectroscopy has been used to characterize both the carbon-Ðber surfaces and the reacted carbon-Ðber surfaces. The model compounds for the polyimide and polyphenylene sulÐde matrices have been found to show little chemical interaction with the Ðber surfaces, while chemical reactions have been observed in the vinyl ester and epoxy resin model compound/Ðber interfaces.