Polyurethane films prepared with isophorone diisocyanate functionalized wheat starch
نویسندگان
چکیده
This study reports the fabrication and performance of sustainable polyurethane (PU) films based on wheat starch (native NS, modified MS), bio-polyols (1,3-propanediol PD, glycerol Gly), polymeric diphenylmethane diisocyanate (pMDI). NS was successfully with isophorone diisocyanate, confirmed by Fourier transform infrared spectroscopy (FTIR) 13C nuclear magnetic resonance (13C NMR). Various PU were prepared using PD or Gly, MS pMDI. For comparison, reference also synthesized without MS. analyzed from viewpoint their chemical, thermomechanical flexural properties, microstructural morphology. FTIR spectra demonstrated total consumption NCO groups, while scanning electron microscopy micrographs revealed that addition promoted interactions between compounds, enhancing in consequence mechanical performance. The supported suitability functionalized carbohydrates to substitute petrochemical compounds synthesis more environmentally-friendly PUs.
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ژورنال
عنوان ژورنال: European Polymer Journal
سال: 2021
ISSN: ['0014-3057', '1873-1945']
DOI: https://doi.org/10.1016/j.eurpolymj.2021.110826