Journal
JOURNAL OF POLYMERS AND THE ENVIRONMENT
Volume 29, Issue 4, Pages 1076-1088Publisher
SPRINGER
DOI: 10.1007/s10924-020-01945-y
Keywords
Jute; Nano-clay; Damping factor; Free vibration; Chemical treatment
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The study investigated the effects of NaOH solution concentration and nano-clay content on the properties of composite materials, revealing significant impacts on glass transition temperature and natural frequency. The addition of treated fibers and nano-clay improved the interfacial bonding, suggesting potential for low strength structural applications.
Untreated and treated jute fiber and nano-clay in various ratios were used to fabricate jute/nano-clay/epoxy hybrid composites through compression molding method. The dynamic mechanical and free vibration behaviours were evaluated by varying the concentration of NaOH (2.5%, 5% and 7.5%) and wt.% of nano-clay (1, 3, 5 and 7 wt.%). Experimental outcomes disclosed that the storage and loss modulus, damping factor and natural frequency are influenced by concentration of NaOH solution and nano-clay content. A positive shift (towards higher temperature) in glass transition temperature and enhanced natural frequency of the composites after NaOH treatment and nano-clay addition confirmed that superior interfacial bonding exists between the jute fibers and epoxy matrix. Finally, the composites incorporated with 5% treated fiber and 5 wt.% of nano-clay is suggested for low strength structural applications in construction and automobile industries.
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