title: New polyurethane nanocomposites based on soya oil.
abstract: New polyurethane (PU) nanocomposites were prepared from a dispersion of 0 - 5% montmorillonite (MMT) clay with isocyanate and soya oil polyol that was synthesized via transesterification of triglycerides to reduce petroleum dependence. FT-IR spectra indicate the presence of hydrogen bonding between nanoclay and the polymer matrix, whereas the exfoliated structure of clay layers was confirmed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Optical microscopy, mechanical and thermal analyses were done to investigate significant improvement of the nanocomposites. The results showed PU-3% nanoclay (NC) showed optimum results in mechanical properties such as tensile and flexural strength but the lowest in impact strength.
authors.affiliation: Department of Chemistry, Faculty of Science, University Putra Malaysia.
authors.forename: Issam Ahmed
authors.initials: IA
authors.lastname: Mohammed
authors.forename: Nurul Khizrien
authors.initials: NK
authors.lastname: Abd Khadir
authors.forename: Emad Abbas
authors.initials: EA
authors.lastname: Jaffar Al-Mulla
mesh_terms: D001546:Bentonite / Q000737:chemistry; D004951:Esterification; D006860:Hydrogen Bonding; D017953:Isocyanates; D055595:Mechanical Phenomena; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry; D011108:Polymers; D011140:Polyurethanes / Q000138:chemical synthesis / Q000737:chemistry; D013024:Soybean Oil; D013718:Tensile Strength; D014280:Triglycerides / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D017953:Isocyanates; D011108:Polymers; D011140:Polyurethanes; D014280:Triglycerides; C024617:polyol; D001546:Bentonite; D013024:Soybean Oil