Mechanical properties of unsaturated polyester/montmorillonite composites

Inceoglu A., Yilmazer U.

Symposium on Nanophase and Nanocomposite Materials IV held at the 2001 MRS Fall Meeting, Massachusetts, United States Of America, 26 - 29 November 2001, vol.703, pp.387-392 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 703
  • City: Massachusetts
  • Country: United States Of America
  • Page Numbers: pp.387-392
  • Middle East Technical University Affiliated: No


Nanocomposites composed of unsaturated polyester matrix and organically modified clay filler were prepared. After the synthesis, XRD patterns showed that the interlayer spacing expanded from 1.25 nm to 4.5 nm. The mechanical properties of the nanocomposites were determined and it was found that adding only 3 w/w % organically modified clay improved the flexural modulus of unsaturated polyester by 35%. From DSC diagrams, it was found that T-g values of the nanocomposites also increased with the clay content. It is concluded that partially exfoliated / intercalated nanocomposites were formed at relatively low clay contents.