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Development of biobased multilayer films with improved compatibility between polylactic acid-chitosan as a function of transition coating of SiOx.
Int J Biol Macromol. 2020 Dec 15; 165(Pt A):1258-1263.IJ

Abstract

A SiOx coating prepared via plasma-enhanced chemical vapor deposition (PECVD) technique was used as a transition layer between polylactic acid (PLA) and chitosan (CS) to form a three-layer composite film of PLA/SiOx/CS. The effect of oxygen plasma irradiation time (0 s, 30s and 60s) on SiOx surface and PLA-CS interface was examined based on the contact angle, pull-off test and scanning electron microscope (SEM). The mechanical, barrier and antibacterial properties of PLA/SiOx/CS films were also investigated. The results showed that oxygen plasma irradiation improved the hydrophilicity of the SiOx surface and the adhesive strength between SiOx-CS of PLA/SiOx/CS films in a time-dependent manner. SEM examination revealed a gap between PLA/CS layers, but the interfacial separation among layers in PLA/SiOx/CS films disappeared as the transition layer of SiOx and oxygen plasma irradiation (60s) intensified. Notably, the oxygen barrier property and antibacterial activity of PLA/SiOx/CS films were dramatically enhanced. Additionally, moisture resistance was slightly decreased following the incorporation of the CS coating compared with the PLA film. The tensile strength of the composite film also increased with the number of layers, while elongation at break decreased. The prepared PLA/SiOx/CS films with multifunction are promising applied in food packaging as biobased materials.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Li Y
Mechanical Engineering, Wuhan Polytechnic University, Wuhan, China. Electronic address: myllyn@126.com.
Ren J
Mechanical Engineering, Wuhan Polytechnic University, Wuhan, China.
Wang B
Mechanical Engineering, Wuhan Polytechnic University, Wuhan, China.
Lu W
Mechanical Engineering, Wuhan Polytechnic University, Wuhan, China.
Wang H
School of Biology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan, China; Fresh Food Engineering and Technology Research Center of Hubei Province, Wuhan 430023, China. Electronic address: 119075816@qq.com.
Hou W
School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China; Fresh Food Engineering and Technology Research Center of Hubei Province, Wuhan 430023, China.

MeSH

Anti-Bacterial AgentsChitosanFood PackagingLactic AcidOxidesPolyestersPolymersSilicon DioxideTensile Strength

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33038397

Citation

Li, Yana, et al. "Development of Biobased Multilayer Films With Improved Compatibility Between Polylactic Acid-chitosan as a Function of Transition Coating of SiOx." International Journal of Biological Macromolecules, vol. 165, no. Pt A, 2020, pp. 1258-1263.
Li Y, Ren J, Wang B, et al. Development of biobased multilayer films with improved compatibility between polylactic acid-chitosan as a function of transition coating of SiOx. Int J Biol Macromol. 2020;165(Pt A):1258-1263.
Li, Y., Ren, J., Wang, B., Lu, W., Wang, H., & Hou, W. (2020). Development of biobased multilayer films with improved compatibility between polylactic acid-chitosan as a function of transition coating of SiOx. International Journal of Biological Macromolecules, 165(Pt A), 1258-1263. https://doi.org/10.1016/j.ijbiomac.2020.10.001
Li Y, et al. Development of Biobased Multilayer Films With Improved Compatibility Between Polylactic Acid-chitosan as a Function of Transition Coating of SiOx. Int J Biol Macromol. 2020 Dec 15;165(Pt A):1258-1263. PubMed PMID: 33038397.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development of biobased multilayer films with improved compatibility between polylactic acid-chitosan as a function of transition coating of SiOx. AU - Li,Yana, AU - Ren,Jizhou, AU - Wang,Beihai, AU - Lu,Wanqiu, AU - Wang,Hongxun, AU - Hou,Wenfu, Y1 - 2020/10/08/ PY - 2020/08/01/received PY - 2020/09/23/revised PY - 2020/10/01/accepted PY - 2020/10/11/pubmed PY - 2021/4/10/medline PY - 2020/10/10/entrez KW - Chitosan KW - Polylactic acid KW - SiOx SP - 1258 EP - 1263 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 165 IS - Pt A N2 - A SiOx coating prepared via plasma-enhanced chemical vapor deposition (PECVD) technique was used as a transition layer between polylactic acid (PLA) and chitosan (CS) to form a three-layer composite film of PLA/SiOx/CS. The effect of oxygen plasma irradiation time (0 s, 30s and 60s) on SiOx surface and PLA-CS interface was examined based on the contact angle, pull-off test and scanning electron microscope (SEM). The mechanical, barrier and antibacterial properties of PLA/SiOx/CS films were also investigated. The results showed that oxygen plasma irradiation improved the hydrophilicity of the SiOx surface and the adhesive strength between SiOx-CS of PLA/SiOx/CS films in a time-dependent manner. SEM examination revealed a gap between PLA/CS layers, but the interfacial separation among layers in PLA/SiOx/CS films disappeared as the transition layer of SiOx and oxygen plasma irradiation (60s) intensified. Notably, the oxygen barrier property and antibacterial activity of PLA/SiOx/CS films were dramatically enhanced. Additionally, moisture resistance was slightly decreased following the incorporation of the CS coating compared with the PLA film. The tensile strength of the composite film also increased with the number of layers, while elongation at break decreased. The prepared PLA/SiOx/CS films with multifunction are promising applied in food packaging as biobased materials. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/33038397/Development_of_biobased_multilayer_films_with_improved_compatibility_between_polylactic_acid_chitosan_as_a_function_of_transition_coating_of_SiOx_ DB - PRIME DP - Unbound Medicine ER -