caa a22 4500 445291893 CHVBK 20180317142530.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1007/s12588-010-0018-y doi (NATIONALLICENCE)springer-10.1007/s12588-010-0018-y Biodegradable nanocomposites of poly (butylene adipate-co-terephthalate) (PBAT) with organically modified nanoclays [Elektronische Daten] [Smita Mohanty, Sanjay Nayak] Bio-nanocomposite hybrids based on poly (butylene adipate-co-terephthalate) (PBAT) and layered silicates were prepared by melt interaction technique using co-rotating twin screw extruder having a blown film unit. Sodium montmorillonite (Na+MMT) along with three different commercially available nanoclays i.e., Cloisite30B (C30B), Cloisite20A (C20A), Bentonite (B109) have been used as a reinforcing agent. Wide angle X-ray diffraction (WAXD) studies indicated an increase in d spacing of the nanoclays in the bio-nanocomposite hybrids revealing formation of intercalated morphology. Morphological studies using Transmission Electron Microscopy (TEM) also confirmed that nanoclays were finely dispersed in the PBAT matrix and there was presence of partially exfoliated clay galleries along with intercalated structures in the bio-nanocomposite hybrids. Mechanical tests showed that the bio-nanocomposite hybrids prepared using B109 nanoclay exhibited higher tensile modulus. Functionalization of PBAT matrix upon grafting with maleic anhydride (MA) resulted in further improvement in mechanical properties. The existence of interfacial bonds in grafted bio-nanocomposite hybrids are substantiated using FTIR spectroscopy. Thermal properties of bio-nanocomposite hybrids employing DSC, TGA also revealed improved Tg, Tc and thermal stability over the virgin polymer. Dynamic Mechanical Analysis (DMA) indicated an increase of storage modulus (E′) of PBAT biopolymer with incorporation of nanofiller. The biodegradability of PBAT bio-nanocomposite hybrids showed an increase in the rate of biodegradability with addition of Na+MMT due to hydrophilic nature of the nanoclay. Central Institute of Plastics Engineering & Technology, 2011 Poly (butylene adipate-co-terephthalate) nationallicence TEM nationallicence DMA nationallicence MA-g-PBAT nationallicence Mohanty Smita Central Institute of Plastic Engineering & Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), 751024, Bhubaneswar, India aut Nayak Sanjay Central Institute of Plastic Engineering & Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), 751024, Bhubaneswar, India aut International Journal of Plastics Technology Springer India 14/2(2010-12-01), 192-212 0972-656X 14:2<192 2010 14 12588 https://doi.org/10.1007/s12588-010-0018-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12588-010-0018-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohanty Smita Central Institute of Plastic Engineering & Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), 751024, Bhubaneswar, India aut NATIONALLICENCE 700 1- Nayak Sanjay Central Institute of Plastic Engineering & Technology, Laboratory for Advanced Research in Polymeric Materials (LARPM), 751024, Bhubaneswar, India aut NATIONALLICENCE 773 0- International Journal of Plastics Technology Springer India 14/2(2010-12-01), 192-212 0972-656X 14:2<192 2010 14 12588 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer