Tags

Type your tag names separated by a space and hit enter

Biodegradable poly (lactic acid)/Cellulose nanocrystals (CNCs) composite microcellular foam: Effect of nanofillers on foam cellular morphology, thermal and wettability behavior.
Int J Biol Macromol. 2018 Jan; 106:433-446.IJ

Abstract

This article addresses the elegant and green approach for fabrication of bio-based poly (lactic acid) (PLA)/cellulose nanocrystal (CNCs) bionanocomposite foam (PLA/CNC) with cellular morphology and hydrophobic surface behavior. Highly porous (porosity >80%) structure is obtained with interconnected pores and the effect of CNCs in the cell density (Nf) and cell size of foams are thoroughly investigated by morphological analysis. The thermo-mechanical investigations are performed for the foam samples and almost ∼1.7 and ∼2.2 fold increase in storage modulus is observed for the compressive and tensile mode respectively. PLA/CNC based bionanocomposite foams displayed similar thermal stability as base PLA foam. Detailed investigations of decomposition behavior are studied by using hyphenated thermogravimetric analysis-fourier transmission infrared spectroscopy (TGA-FTIR) system. Almost ∼13% increment is observed in crystallinity at highest loading of CNCs compared to neat counterpart. To investigate the splitting and spreading phenomenon of the wettability of the samples, linear model is used to find the Young's contact angle and contact angle hysteresis (CAH). Besides, ∼6.1 folds reduction in the density of PLA and the nanocomposite foams compared to PLA carries much significance in specialized application areas where weight is an important concern.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Borkotoky SS
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Dhar P
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Katiyar V
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India. Electronic address: vkatiyar@iitg.ernet.in.

MeSH

Biodegradation, EnvironmentalCelluloseElastic ModulusGreen Chemistry TechnologyHydrophobic and Hydrophilic InteractionsNanocompositesNanoparticlesPolyestersPolymerizationPorosityTemperatureWettability

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28797817

Citation

Borkotoky, Shasanka Sekhar, et al. "Biodegradable Poly (lactic acid)/Cellulose Nanocrystals (CNCs) Composite Microcellular Foam: Effect of Nanofillers On Foam Cellular Morphology, Thermal and Wettability Behavior." International Journal of Biological Macromolecules, vol. 106, 2018, pp. 433-446.
Borkotoky SS, Dhar P, Katiyar V. Biodegradable poly (lactic acid)/Cellulose nanocrystals (CNCs) composite microcellular foam: Effect of nanofillers on foam cellular morphology, thermal and wettability behavior. Int J Biol Macromol. 2018;106:433-446.
Borkotoky, S. S., Dhar, P., & Katiyar, V. (2018). Biodegradable poly (lactic acid)/Cellulose nanocrystals (CNCs) composite microcellular foam: Effect of nanofillers on foam cellular morphology, thermal and wettability behavior. International Journal of Biological Macromolecules, 106, 433-446. https://doi.org/10.1016/j.ijbiomac.2017.08.036
Borkotoky SS, Dhar P, Katiyar V. Biodegradable Poly (lactic acid)/Cellulose Nanocrystals (CNCs) Composite Microcellular Foam: Effect of Nanofillers On Foam Cellular Morphology, Thermal and Wettability Behavior. Int J Biol Macromol. 2018;106:433-446. PubMed PMID: 28797817.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biodegradable poly (lactic acid)/Cellulose nanocrystals (CNCs) composite microcellular foam: Effect of nanofillers on foam cellular morphology, thermal and wettability behavior. AU - Borkotoky,Shasanka Sekhar, AU - Dhar,Prodyut, AU - Katiyar,Vimal, Y1 - 2017/08/07/ PY - 2017/06/20/received PY - 2017/07/19/revised PY - 2017/08/04/accepted PY - 2017/8/12/pubmed PY - 2018/7/10/medline PY - 2017/8/12/entrez KW - Cellulose nanocrystals (CNCs) KW - Foam KW - Poly (lactic acid) SP - 433 EP - 446 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 106 N2 - This article addresses the elegant and green approach for fabrication of bio-based poly (lactic acid) (PLA)/cellulose nanocrystal (CNCs) bionanocomposite foam (PLA/CNC) with cellular morphology and hydrophobic surface behavior. Highly porous (porosity >80%) structure is obtained with interconnected pores and the effect of CNCs in the cell density (Nf) and cell size of foams are thoroughly investigated by morphological analysis. The thermo-mechanical investigations are performed for the foam samples and almost ∼1.7 and ∼2.2 fold increase in storage modulus is observed for the compressive and tensile mode respectively. PLA/CNC based bionanocomposite foams displayed similar thermal stability as base PLA foam. Detailed investigations of decomposition behavior are studied by using hyphenated thermogravimetric analysis-fourier transmission infrared spectroscopy (TGA-FTIR) system. Almost ∼13% increment is observed in crystallinity at highest loading of CNCs compared to neat counterpart. To investigate the splitting and spreading phenomenon of the wettability of the samples, linear model is used to find the Young's contact angle and contact angle hysteresis (CAH). Besides, ∼6.1 folds reduction in the density of PLA and the nanocomposite foams compared to PLA carries much significance in specialized application areas where weight is an important concern. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/28797817/Biodegradable_poly__lactic_acid_/Cellulose_nanocrystals__CNCs__composite_microcellular_foam:_Effect_of_nanofillers_on_foam_cellular_morphology_thermal_and_wettability_behavior_ DB - PRIME DP - Unbound Medicine ER -