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01.03.2022 | Original Paper

Influence of reaction compatibilization on mechanical and barrier properties of poly(lactic acid)/ethylene–methyl acrylate-glycidyl methacrylate terpolymer films

verfasst von: Xiangyu Yan, Shiling Jia, Ye Zhang, Lijing Han, Junjia Bian, Huili Yang, Hongwei Pan, Guangfeng Wu, Huiliang Zhang

Erschienen in: Journal of Polymer Research | Ausgabe 3/2022

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Abstract

Biodegradable poly(lactic acid) (PLA)/ethylene–methyl acrylate-glycidyl methacrylate terpolymer (EMG) films were prepared, and the rheological, thermal, mechanical, morphological, and barrier properties were studied. DMA and rheology are two effective methods to investigate the miscibility of PLA/EMG blends. The trend of changing the glass transition temperature (T_g) was attributed to the interfacial reaction between the PLA phase and EMG, meanwhile, rheology depicted the storage modulus (G′) and complex viscosity (|η*|) of PLA/EMG blends increased at low frequencies due to reaction compatibilization. The mechanical properties of films improved significantly after adding EMG, when the EMG content was 15 wt%, the elongation at break (ε_b) of the PLA/EMG film was 46.2% in MD and 41.4% in TD. From SEM analysis, the changes in the microstructure of the dispersed particles influenced toughness of the PLA/EMG films, the EMG particles evenly dispersed in the PLA matrix. Finally, the water vapor and oxygen permeability indicated that the EMG improved the barrier properties of the PLA films. The reaction compatibilization was governed by the EMG ratio by the fourier transform infrared spectroscopy. The PLA/EMG films expanded the application range of biodegradable PLA.

Vorheriger Artikel Advanced internal porous skeleton supported phase change materials for thermo-electric energy conversion applications

Nächster Artikel Thermal energy storage and mechanical performance of composites of rigid polyurethane foam and phase change material prepared by one-shot synthesis method

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Titel: Influence of reaction compatibilization on mechanical and barrier properties of poly(lactic acid)/ethylene–methyl acrylate-glycidyl methacrylate terpolymer films
verfasst von: Xiangyu Yan
Shiling Jia
Ye Zhang
Lijing Han
Junjia Bian
Huili Yang
Hongwei Pan
Guangfeng Wu
Huiliang Zhang
Publikationsdatum: 01.03.2022
Verlag: Springer Netherlands
Erschienen in: Journal of Polymer Research / Ausgabe 3/2022
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-022-02932-8

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