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Open AccessArticle

Ecofriendly Preparation and Characterization of a Cassava Starch/Polybutylene Adipate Terephthalate Film

1
College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
2
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
*
Author to whom correspondence should be addressed.
Processes 2020, 8(3), 329; https://doi.org/10.3390/pr8030329
Received: 16 February 2020 / Revised: 1 March 2020 / Accepted: 2 March 2020 / Published: 11 March 2020
(This article belongs to the Special Issue Synthesis and Applications of Eco-Friendly Polymers)
Composite films of polybutylene adipate terephthalate (PBAT) were prepared by adding thermoplastic starch (TPS) (TPS/PBAT) and nano-zinc oxide (nano-ZnO) (TPS/PBAT/nano-ZnO). The changes of surface morphology, thermal properties, crystal types and functional groups of starch during plasticization were analyzed by scanning electron microscopy, synchronous thermal analysis, X-ray diffraction, infrared spectrometry, mechanical property tests, and contact Angle and transmittance tests. The relationship between the addition of TPS and the tensile strength, transmittance, contact angle, water absorption, and water vapor barrier of the composite film, and the influence of nano-ZnO on the mechanical properties and contact angle of the 10% TPS/PBAT composite film. Experimental results show that, after plasticizing, the crystalline form of starch changed from A-type to V-type, the functional group changed and the lipophilicity increased; the increase of TPS content, the light transmittance and mechanical properties of the composite membrane decreased, while the water vapor transmittance and water absorption increased. The mechanical properties of the composite can be significantly improved by adding nano-ZnO at a lower concentration (optimum content is 1 wt%). View Full-Text
Keywords: TPS; PBAT; nano-zinc oxide; plasticization; mechanical properties TPS; PBAT; nano-zinc oxide; plasticization; mechanical properties
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MDPI and ACS Style

Yi, T.; Qi, M.; Mo, Q.; Huang, L.; Zhao, H.; Liu, D.; Xu, H.; Huang, C.; Wang, S.; Liu, Y. Ecofriendly Preparation and Characterization of a Cassava Starch/Polybutylene Adipate Terephthalate Film. Processes 2020, 8, 329.

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