Fabrication and evolution of montmorillonite clay reinforced epoxy

Sirajus Salekeen, M. G.K. Khan, Shaik Jeelani

Research output: Contribution to journalConference articlepeer-review

Abstract

In the present investigation, K-10 montmorillonite nano-clay was infused into Epon 862 epoxy through a high intensity ultrasonic liquid processor. It was then mixed with hardener using a high speed mechanical stirrer to obtain a homogenous molecular mixture of epoxy resin and nano-clay. Air bubbles caused by high speed mechanical stirring were removed by high vacuum. DMA, TMA, TGA, and three point bending tests were performed on neat, 0.5 wt.%, 1 wt.%, 1.5 wt.%, 2 wt.%, 3 wt.%, 4 wt.% nano-clay-filled epoxy nanocomposites to identify the loading effect on thermal and mechanical properties of these composites. The flexural results indicated that the loading of 3 wt.% nano-clay in epoxy resin resulted in the highest improvement of flexural strength over neat epoxy. TGA results indicated that nanocomposites remained thermally stable since the decomposition temperature of neat epoxy did not change with the addition of nano particles. DMA results revealed that 2 wt.% doped system had the highest improvement in storage modulus over the neat epoxy system DMA results also indicated continued improvement of glass transition temperature upto 4% nano-clay loading. TMA results revealed that 2 wt% nano-clay loading resulted in lowest coefficient of thermal expansion value.

Original languageEnglish
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume52
StatePublished - 2008
EventSAMPE 2008 - 52nd International SAMPE Symposium - Material and Process Innovations: Changing our World - Long Beach, CA, United States
Duration: May 18 2008May 22 2008

Keywords

  • Composites
  • Nano-clay
  • Nanocomposites

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