# EFFECT OF NANOCLAY ON QUASI STATIC PERFORATION OF THIN-WALLED POLYMER COMPOSITE LAMINATES

> Title: EFFECT OF NANOCLAY ON QUASI STATIC PERFORATION OF THIN-WALLED POLYMER COMPOSITE LAMINATES Page Range: p.737-748 Author(s): Javad Moftakharian Esfahani; Masoud Esfandeh; Ali Reza Sabet File size: 422K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer Composites...

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Published: 2012-08-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: EFFECT OF NANOCLAY ON QUASI STATIC PERFORATION OF THIN-WALLED POLYMER COMPOSITE LAMINATES**
 Page Range: p.737-748
 Author(s): Javad Moftakharian Esfahani; Masoud Esfandeh; Ali Reza Sabet
 File size: 422K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc20-8&JournalID=101708&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 20
 Issue No: No.8

**Abstract**
 In this study, the penetration and perforation performance of nanoclay reinforced unsaturated polyester resin/ fibreglass nanocomposite laminates have been investigated via quasi-static indentation tests using a hemispherical nose indenter. Unsaturated polyester resin (UP) was mixed with 1.5 and 3 wt.% nanoclay using a homogeniser stirrer to prepare a homogeneous mix. UP reinforced nanocomposite was then utilized to manufacture 150 x 150 mm2 laminated composite panels using 400 g/m2 glass fibre woven roving via a hand lay-up process. X-ray diffractometry, transmission electron microscopy analysis, energy-dispersive X-ray (EDXA) analysis and measurement of viscosity changes in the liquid state resin confirmed the exfoliation and the intercalation of the nanoclay by the unsaturated polyester resin system used. Quasi-static perforation tests were conducted using a surface-hardened steel indenter with a hemispherical tip at 5 and 500 mm/min load rates on nanocomposite laminated plates. Measurement of the quasi-static force as a function of indenter displacement for all the specimens showed four distinct regions, namely penetration, perforation, exit and residual frictional force. The results indicated a clear role being played by the nanoclay filler as a secondary reinforcement, in terms of higher energy absorption in all four regions. 42 Refs.

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