Study on the mechanical properties of nanoclay-epoxy composites under different hygrothermal aging conditions

Manjunath Shettar, U. Achutha Kini, Sathyashankara Sharma, Pavan Hiremath, M. C. Gowrishankar

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The current study objectives to prepare and characterize nanoclay-epoxy composites (NECs) with a varying weight percentage of nanoclay. The NECs are prepared by mixing nanoclay and epoxy resin using a sonicator. The mixture is mold formed using direct casting technique, to make specimens as per ASTM standards. The specimens are treated with three hygrothermal aging conditions viz., cold water soaking, boiling water soaking and thermal shock. The properties of the specimens are characterized based on tensile and flexural tests as per ASTM standards. The results revealed that hygrothermal aging conditions have an adverse effect on the properties of neat epoxy. Addition of nanoclay increased the mechanical properties and decreased the effect of water soaking conditions. SEM images disclosed the reasons for the failure of the specimens. Conclusions are drawn based on comparison done in obtained results of dry specimens, and the specimens that underwent hygrothermal aging conditions.

Original languageEnglish
Article number085333
JournalMaterials Research Express
Volume6
Issue number8
DOIs
Publication statusPublished - 07-06-2019

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Aging of materials
Mechanical properties
Water
Composite materials
Epoxy Resins
Thermal shock
Epoxy resins
Boiling liquids
Casting
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

Cite this

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abstract = "The current study objectives to prepare and characterize nanoclay-epoxy composites (NECs) with a varying weight percentage of nanoclay. The NECs are prepared by mixing nanoclay and epoxy resin using a sonicator. The mixture is mold formed using direct casting technique, to make specimens as per ASTM standards. The specimens are treated with three hygrothermal aging conditions viz., cold water soaking, boiling water soaking and thermal shock. The properties of the specimens are characterized based on tensile and flexural tests as per ASTM standards. The results revealed that hygrothermal aging conditions have an adverse effect on the properties of neat epoxy. Addition of nanoclay increased the mechanical properties and decreased the effect of water soaking conditions. SEM images disclosed the reasons for the failure of the specimens. Conclusions are drawn based on comparison done in obtained results of dry specimens, and the specimens that underwent hygrothermal aging conditions.",
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Study on the mechanical properties of nanoclay-epoxy composites under different hygrothermal aging conditions. / Shettar, Manjunath; Kini, U. Achutha; Sharma, Sathyashankara; Hiremath, Pavan; Gowrishankar, M. C.

In: Materials Research Express, Vol. 6, No. 8, 085333, 07.06.2019.

Research output: Contribution to journalArticle

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AU - Shettar, Manjunath

AU - Kini, U. Achutha

AU - Sharma, Sathyashankara

AU - Hiremath, Pavan

AU - Gowrishankar, M. C.

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