Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films
In this study, we investigated the barrier properties of a montmorillonite-reinforced biomass material, starch. Organically modified montmorillonite materials were prepared from natural montmorillonite by reacting it with dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride...
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doaj-8e5ff1ab6c6b42d8966f4844c07486242020-11-25T03:00:32ZengMDPI AGPolymers2073-43602020-07-01121611161110.3390/polym12071611Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite FilmsLijie Huang0Xiaoxue Han1Haobin Chen2Shuxiang An3Hanyu Zhao4Hao Xu5Chongxing Huang6Shuangfei Wang7Yang Liu8College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, ChinaGuangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, ChinaGuangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, ChinaIn this study, we investigated the barrier properties of a montmorillonite-reinforced biomass material, starch. Organically modified montmorillonite materials were prepared from natural montmorillonite by reacting it with dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride or octadecyl trimethyl ammonium chloride under ultrasonic conditions. The composite starch films incorporated with these organically modified montmorillonite samples were characterized by scanning electron microscopy, transmission electron microscopy, infrared spectroscopy and X-ray diffraction. The results showed that the introduction of montmorillonite decreases the transmittance of the composite film by 10% in the visible region and significantly inhibits UV-light transmittance. The decomposition temperature of the composite film ranges from 200 to 500 °C, with a weight loss rate of 80%. The distance between the montmorillonite layers increases from 0.14 nm in the non-magnetized state to 1.49 nm after magnetization. The oxygen permeability of the starch film modified by organic montmorillonite (0.067 cm<sup>3</sup>/m<sup>2</sup>·d) is lower than that of the montmorillonite starch film without magnetization (0.097cm<sup>3</sup>/m<sup>2</sup>·d). The oxygen barrier capacity is close to zero. Particularly in the ordered magnetic montmorillonite starch composite film, the oxygen barrier ability is the best. Therefore, modified montmorillonite could serve as an excellent reinforcing agent for cassava starch films and effectively improve the oxygen barrier performance of the films.https://www.mdpi.com/2073-4360/12/7/1611montmorilloniteintercalation reactionstarch filmbarrier mechanism |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lijie Huang Xiaoxue Han Haobin Chen Shuxiang An Hanyu Zhao Hao Xu Chongxing Huang Shuangfei Wang Yang Liu |
spellingShingle |
Lijie Huang Xiaoxue Han Haobin Chen Shuxiang An Hanyu Zhao Hao Xu Chongxing Huang Shuangfei Wang Yang Liu Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films Polymers montmorillonite intercalation reaction starch film barrier mechanism |
author_facet |
Lijie Huang Xiaoxue Han Haobin Chen Shuxiang An Hanyu Zhao Hao Xu Chongxing Huang Shuangfei Wang Yang Liu |
author_sort |
Lijie Huang |
title |
Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films |
title_short |
Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films |
title_full |
Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films |
title_fullStr |
Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films |
title_full_unstemmed |
Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films |
title_sort |
preparation and barrier performance of layer-modified soil-stripping/cassava starch composite films |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-07-01 |
description |
In this study, we investigated the barrier properties of a montmorillonite-reinforced biomass material, starch. Organically modified montmorillonite materials were prepared from natural montmorillonite by reacting it with dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride or octadecyl trimethyl ammonium chloride under ultrasonic conditions. The composite starch films incorporated with these organically modified montmorillonite samples were characterized by scanning electron microscopy, transmission electron microscopy, infrared spectroscopy and X-ray diffraction. The results showed that the introduction of montmorillonite decreases the transmittance of the composite film by 10% in the visible region and significantly inhibits UV-light transmittance. The decomposition temperature of the composite film ranges from 200 to 500 °C, with a weight loss rate of 80%. The distance between the montmorillonite layers increases from 0.14 nm in the non-magnetized state to 1.49 nm after magnetization. The oxygen permeability of the starch film modified by organic montmorillonite (0.067 cm<sup>3</sup>/m<sup>2</sup>·d) is lower than that of the montmorillonite starch film without magnetization (0.097cm<sup>3</sup>/m<sup>2</sup>·d). The oxygen barrier capacity is close to zero. Particularly in the ordered magnetic montmorillonite starch composite film, the oxygen barrier ability is the best. Therefore, modified montmorillonite could serve as an excellent reinforcing agent for cassava starch films and effectively improve the oxygen barrier performance of the films. |
topic |
montmorillonite intercalation reaction starch film barrier mechanism |
url |
https://www.mdpi.com/2073-4360/12/7/1611 |
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