Current Trends in Science and Technology

an Open Access Publication ISSN: 0976-9730 | 0976-9498

Engineering and Technology

Mechanical Behavior of CNT-Filled Glass/Epoxy Composites in Marine Environment

D.S.Kumar, G.Pramod Kumar
1,2Department Of Mechanical Engineering, M.V.G.R.College Of Engineering (A),Vizianagaram, India. Email Id:,
Online First: October 12, 2017
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Composite materials have an increasing demand in industrial applications like aerospace, marine and structural applications due to their high strength to weight ratio and high stiffness. Composite materials are very sensitive to hygrothermal environments, which seriously limit their applications to composite structures because composite structures are commonly exposed to moisture at elevated temperatures. The moisture absorption and high temperature will weaken the mechanical behaviours of the matrix, fiber and interface of them and further result in mechanical property reduction of composites. This decrease in mechanical properties can be reduced by reinforcing the composite with carbon nanotubes (CNT) because of its high elastic and tensile strength, these mechanical properties of the composites are significantly increase interfacial interactions between nanotubes and polymer matrices.

In the present study, samples of glass/epoxy (GE) composites and Multi walled carbon nanotubes filled glass/epoxy (MWCNT GE) composites are conditioned in normal water and sea water for 7, 10 weeks. After conditioning the samples for 7, 10 weeks respectively, the tensile strength (ASTM D3039 / D3039M), hardness were measured and compared with that of un-conditioned samples. In the as fabricated condition, CNT (0.2%)- glass/epoxy composite showed the highest strength among all the other composites fabricate and the ultimate strength showed. Conditioned at sea water for 10 weeks shows better results in all mechanical properties like ultimate tensile strength and hardness than conditioned at normal water.

Oct 12, 2017
Oct 12, 2017
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