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Creep performance of CNT reinforced glass fiber/epoxy composites: Roles of temperature and stress
Author(s) -
Nomula Sai Seetha Ram,
Rathore Dinesh Kumar,
Ray Bankim Chandra,
Prusty Rajesh Kumar
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47674
Subject(s) - materials science , composite material , creep , composite number , epoxy , ultimate tensile strength , carbon nanotube , stress (linguistics) , deformation (meteorology) , glass fiber , bending , durability , reinforcement , flexural strength , philosophy , linguistics
Carbon nanotubes (CNTs) have been emerged as a potential nanofiller to reinforce polymeric materials to improve their mechanical properties, like strength and modulus. However, time‐dependent deformation of such materials under a constant load and elevated temperature is a matter of concern for long‐term durability of these materials. The present article primarily demonstrates the effects of creep temperature and stress on the reinforcement efficiency of CNT in a glass fiber/epoxy (GE) composite. Two types of materials were investigated in this study—GE which was used as a control material, as well as CNT embedded GE composite. To elucidate the impact of CNT on the long‐term durability of GE composite, creep tests have been performed at different temperatures (50, 80, and 110 °C) under bending loading. As applied stress has also significant contribution toward the elevated creep deformation of materials, creep tests have also been carried out under different stresses (5, 10, and 40 MPa). The strength of the CNT‐GE composite exhibited 8.7 and 18.3% higher than that of control GE composite under tensile and bending load, respectively. Results suggest CNT reinforcement to be beneficial for low temperature applications, both in terms of creep strain and strain rate. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47674.