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Journal of Reinforced Plastics and Composites
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Development and Characterization of Amine Terminated Poly(Ethylene Glycol) Benzoate Modified Epoxy and E Glass Fiber Composites

Rajeeb K. Jena

Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, India

A.H. Bhat

Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, India, aamir_bhat{at}rediffmail.com

S. Maji

Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, India

D. Behera

Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, India

A.K. Banthia

Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, India

The E glass woven fabrics have been used as a reinforcing agent with amine terminated poly(ethylene glycol) benzoate (ATPEGB) modified epoxy as a matrix, for the preparation of fiber reinforced plastic (FRP) composites. The composite materials so obtained were subjected to dynamic mechanical analysis at a fixed frequency of 1 Hz. The volume fraction of glass was about 0.45. The concentration of ATPEGB in the matrix was varied gradually from 0 to 30 phr (phr stands for parts per hundred parts of resin). To investigate the effect of ATPEGB concentration on the dynamic mechanical properties of the composites, it was found that the tan {delta} peak temperature and storage modulus gradually decrease with incorporation of ATPEGB. However, the tan {delta} peak value increases upto 10 phr of ATPEGB concentration and decreases thereafter. Flexural strength of the composites increases slightly up to 10 phr of ATPEGB concentration and decreases thereafter. However, the impact strength of the composites increases significantly up to 10 phr of ATPEGB concentration and decreases thereafter. Scanning electron microscope (SEM) analysis of the fracture surface indicates massive plastic deformation in modified epoxy-based composites.

Key Words: FRP composites • dynamic mechanical analysis • glass fiber • epoxy resin.

This version was published on October 1, 2009

Journal of Reinforced Plastics and Composites, Vol. 28, No. 20, 2539-2548 (2009)
DOI: 10.1177/0731684408093321
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