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Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites.
Molecules. 2020 Mar 13; 25(6)M

Abstract

This study aimed to reinforce the barrier performance (i.e., oxygen-gas and water-vapor permeability) of poly(lactic acid) (PLA)-based films. Acetyltributylcitrate and zinc oxide nanoparticle (nano-ZnO), serving as plasticizer and nanofiller, respectively, were blended into a PLA matrix through a solvent-volatilizing method. The structural, morphological, thermal, and mechanical performances were then studied. Scanning electron microscopic images showed a significant dispersion of nano-ZnO in PLA ternary systems with low nano-ZnO content. The interaction between PLA matrix and ZnO nanoparticles was further analyzed by Fourier-transform infrared spectroscopy. Wide-angle X-ray scattering spectroscopy demonstrated high compatibility between PLA matrix and ZnO nanoparticles. Mechanical property studies revealed good tensile strength and low flexibility. Differential scanning calorimetry curves proved that an amorphous structure mostly existed in PLA ternary systems. The improvements in barrier property and tensile strength indicated that the PLA/nano-ZnO composite films could be used for food packaging application.

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Authors+Show Affiliations

Tang Z
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China.
Fan F
School of Energy and Environment Science, Yunnan Normal University, Kunming 650550, China.
Chu Z
College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
Fan C
Institute of Agriculture and Food Engineering, Kunming University of Science and Technology, Kunming 650550, China.
Qin Y
Institute of Agriculture and Food Engineering, Kunming University of Science and Technology, Kunming 650550, China.

MeSH

Calorimetry, Differential ScanningNanocompositesNanoparticlesOxygenPermeabilityPolyestersSpectroscopy, Fourier Transform InfraredSteamTemperatureX-Ray DiffractionZinc Oxide

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32183008

Citation

Tang, Zhenya, et al. "Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites." Molecules (Basel, Switzerland), vol. 25, no. 6, 2020.
Tang Z, Fan F, Chu Z, et al. Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites. Molecules. 2020;25(6).
Tang, Z., Fan, F., Chu, Z., Fan, C., & Qin, Y. (2020). Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites. Molecules (Basel, Switzerland), 25(6). https://doi.org/10.3390/molecules25061310
Tang Z, et al. Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites. Molecules. 2020 Mar 13;25(6) PubMed PMID: 32183008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Barrier Properties and Characterizations of Poly(lactic Acid)/ZnO Nanocomposites. AU - Tang,Zhenya, AU - Fan,Fangling, AU - Chu,Zhuangzhuang, AU - Fan,Chunli, AU - Qin,Yuyue, Y1 - 2020/03/13/ PY - 2020/02/15/received PY - 2020/03/05/revised PY - 2020/03/12/accepted PY - 2020/3/19/entrez PY - 2020/3/19/pubmed PY - 2020/12/17/medline KW - barrier performances KW - characterizations KW - nano-zinc oxide KW - poly(lactic acid) JF - Molecules (Basel, Switzerland) JO - Molecules VL - 25 IS - 6 N2 - This study aimed to reinforce the barrier performance (i.e., oxygen-gas and water-vapor permeability) of poly(lactic acid) (PLA)-based films. Acetyltributylcitrate and zinc oxide nanoparticle (nano-ZnO), serving as plasticizer and nanofiller, respectively, were blended into a PLA matrix through a solvent-volatilizing method. The structural, morphological, thermal, and mechanical performances were then studied. Scanning electron microscopic images showed a significant dispersion of nano-ZnO in PLA ternary systems with low nano-ZnO content. The interaction between PLA matrix and ZnO nanoparticles was further analyzed by Fourier-transform infrared spectroscopy. Wide-angle X-ray scattering spectroscopy demonstrated high compatibility between PLA matrix and ZnO nanoparticles. Mechanical property studies revealed good tensile strength and low flexibility. Differential scanning calorimetry curves proved that an amorphous structure mostly existed in PLA ternary systems. The improvements in barrier property and tensile strength indicated that the PLA/nano-ZnO composite films could be used for food packaging application. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/32183008/Barrier_Properties_and_Characterizations_of_Poly_lactic_Acid_/ZnO_Nanocomposites_ DB - PRIME DP - Unbound Medicine ER -