# THERMAL AGING BEHAVIOR OF CARBON FIBER/EPOXY COMPOSITES AT HIGH TEMPERATURE

> Title: THERMAL AGING BEHAVIOR OF CARBON FIBER/EPOXY COMPOSITES AT HIGH TEMPERATURE Page Range: p.309-312 Author(s): Rongguo Wang; Long Jiang; Zhonghai Xu; Fan Yang; Lifeng Hao; Weicheng Jiao; Wenbo Liu File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers...

Canonical URL: https://polymerjournals.com/thermal-aging-behavior-of-carbon-fiber-epoxy-composites-at-high-temperature/
Published: 2014-03-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: THERMAL AGING BEHAVIOR OF CARBON FIBER/EPOXY COMPOSITES AT HIGH TEMPERATURE**
 Page Range: p.309-312
 Author(s): Rongguo Wang; Long Jiang; Zhonghai Xu; Fan Yang; Lifeng Hao; Weicheng Jiao; Wenbo Liu
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc22-3&JournalID=102143&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 22
 Issue No: No. 3

**Abstract**
 To investigate the thermal ageing mechanism of carbon fibre/epoxy composites under high temperature (around 110 deg C), the present study examined the inter-laminar shear properties and curing degree. Experimental results showed the inter-laminar shear strength of carbon fibre/Epoxy composites firstly increased following with the ageing time increase which caused by secondary cure, then reduced for long-term of thermal stresses. Fourier transform infrared spectroscopy analysis revealed that the hydroxy functional groups had a certain growth which confirmed that secondary cure occurred during thermal ageing. Electron paramagnanetic resonance results indicated that the increase of the intensity of free-radicals may cause by the chain breaking. Also scanning electron microscopy (SEM) images of fracture surface indicated that carbon fibre and matrix had well combination, which contributed to the better residual shear properties. 7 Refs.

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