Mechanical performances of hygrothermally conditioned CNT/epoxy composites using seawater
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Smrutisikha Bal
Abstract
Hygrothermic aging of epoxy and carbon nanotube (CNT)/epoxy composites (0.5, 0.75, and 1 wt.%) was studied for their application suitability in seawater environments. The specimens were emerged in seawater and kept at constant temperature of 30°C for a maximum duration of 180 days. The specimens were periodically weighed for water absorption study and tested for mechanical as well as thermal properties. All aged samples were showing some amount of degradation owing to their moisture-absorption rates. CNT composites absorbed less moisture than pure epoxy because of the presence of nanofillers. C0.75 was found to be hygrothermally more stable reflecting minimum reduction in flexural properties and glass transition temperature value, which was due to least moisture/water absorption. Deterioration of properties was significant in C1, though it was better than pure epoxy. Fractographic analysis by scanning electron microscopy (SEM) revealed interfacial debonding as the dominant failure mechanism, resulting in pull out of nanotubes.
Acknowledgments
The authors thank the Naval Research Board, New Delhi for providing the financial support for this research work (Grant/Award Number: ‘209/MAT/2010-11’).
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Articles in the same Issue
- Frontmatter
- Original articles
- Effect of the variation of the gating system on the magnetic properties of injection molded pole-oriented rings
- Effect of graphite and silicon carbide fillers on mechanical properties of PA6 polymer composites
- Mechanical properties, thermal and crystallization behavior of different surface-modified silica nanoparticle-filled PA66 composites
- Thermal characterization of reactive blending of 70PC/30PET mixtures prepared in the presence/absence of samarium acetylacetonate as a transesterification catalyst
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- Mechanical performances of hygrothermally conditioned CNT/epoxy composites using seawater
Articles in the same Issue
- Frontmatter
- Original articles
- Effect of the variation of the gating system on the magnetic properties of injection molded pole-oriented rings
- Effect of graphite and silicon carbide fillers on mechanical properties of PA6 polymer composites
- Mechanical properties, thermal and crystallization behavior of different surface-modified silica nanoparticle-filled PA66 composites
- Thermal characterization of reactive blending of 70PC/30PET mixtures prepared in the presence/absence of samarium acetylacetonate as a transesterification catalyst
- Understanding the interactive effects of material parameters governing the printer toner properties: a response surface study
- Quest for electroconducting structural polymers: CNTs/Polybond nanocomposites with improved electrical and mechanical properties
- Comb-like copolymer dispersant for PP/CaCO3 composites: effects of particle concentration on properties of composites
- Study of PVAc-PMMA-LiCl polymer blend electrolyte and the effect of plasticizer ethylene carbonate and nanofiller titania on PVAc-PMMA-LiCl polymer blend electrolyte
- Mechanical performances of hygrothermally conditioned CNT/epoxy composites using seawater
