Synthesis of chitin–bentonite clay based polyurethane bio-nanocomposites

Zuber, Mohammad; Zia, Khalid Mahmood; Mahboob, Shahid; Hassan, Muhammad; Bhatti, Ijaza Ahmad

doi:10.1016/j.ijbiomac.2010.04.022

Cited by 31 publications

(8 citation statements)

References 20 publications

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“…Therefore, the bentonite layer can become peeled and well dispersed in the polymer matrix. Similar morphological results were obtained by other authors [12][13][14]. The results of FTIR characterization have shown the formation of the N-H urethane group in palm oil polyurethane compounds.…”

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confidence: 89%

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Rihayat¹,

Riskina²,

Ismy³

2020

Jurnal POLIMESIN

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This work aims to prepare and characterize polyurethane nanocomposite sequences modified with bentonite as fillers and palm oil as a soft segment component while Toluene Diisocyanate (TDI) was chosen as a hard segment component. Bentonite fillers are needed to provide heat resistance to the polyurethane coating. Morphological, structural and thermal polyurethane nanocomposites are characterized by SEM, FTIR, and TGA. FTIR analysis is the NH urethane group in palm oil polyurethane compounds while the absorption of C=O urethane group widens at 1735 cm-1. While the CH group occurs at absorption wavelengths of 2120-2180 cm-1, adding bentonite (7% by weight) is completely laminated and well dispersed in the form of a mixture of peeling / intercalating layers in the polymer matrix. Polyurethane nanocomposites have a morphology separated by clearer microphase. The resulting thermal stability is higher compared to the addition of bentonite 3 and 5% by weight. Because of its enhanced features, the polymer developed can be considered a material with heat resistance as a coating.

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supporting

confidence: 89%

Untitled

Rihayat¹,

Riskina²,

Ismy³

2020

Jurnal POLIMESIN

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“…It was concluded that the chi/PgA/HA/MMT system is a reliable material system exhibiting good biocompatibility and osteoconductive properties [136]. Zuber et al [137] prepared chitin-based polyurethane bionanocomposites (PUBNCs) by emulsion polymerization. A mixture of polymer and bentonite clay enriched in MMT was formed in emulsion polymerization, in which MMT dispersed differently depending on the interaction of MMT with polymer chains.…”

Section: Composites Containing Clay Nanoparticlesmentioning

confidence: 99%

“…Good cell affinity and biocompatibility [133] Chi/MMT/HA Mixing aqueous solutions Improved nanomechanical properties [134] ChiPgAHAPMMT Freeze-drying technique Good biocompatibility and osteoconductive properties [128] PLA/OMLS Microcompounding/ injection molding and subsequent polymer/particle leaching method Improvement in compressive modulus [137] PEGDA/Laponite Mixing aqueous solutions Enhanced mechanical properties [139] PCL/OMMT Electrospinning More fine fibrous structures with improved stiffness [140] highly bioactive and resorbable nanocomposite materials are making them candidate materials for bone TE applications. In general terms, nanostructures are relevant for designing and fabricating biopolymer/silica phase (nano)composite scaffolds that mimic the nanofeatures of mineralized tissues such as bone.…”

Section: Final Considerationsmentioning

confidence: 99%

Bioactive Nanocomposites Containing Silicate Phases for Bone Replacement and Regeneration

Erol

Hum

Boccaccını

2012

Biomimetic Approaches for Biomaterials Development

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“…This is due to nanoparticles having a much higher specific surface area (Zuber et al, 2010) and a higher concentration of atoms in interfacial locations than larger particles of similar composition (Baláž et al, 2004;Jeon and Baek, 2010). Furthermore, small and systematic perturbations in nanoparticle composition, size and/or shape can elicit some novel and significantly improve physical, biological, chemical or mechanical properties.…”

Section: Introductionmentioning

confidence: 99%