聚乙二醇（PEG）分子量和纳米填料对芭蕉假茎纳米纤维素膜性能的影响。
Effect of polyethylene glycol (PEG) molecular weight and nanofillers on the properties of banana pseudostem nanocellulose films.
机构信息
ARC Training Centre for Advanced Technologies in Food Manufacture, School of Chemical Engineering, UNSW Australia, 2052, Australia; Food Science and Technology, Faculty of Agriculture, Halu Oleo University, Kendari, Indonesia.
ARC Training Centre for Advanced Technologies in Food Manufacture, School of Chemical Engineering, UNSW Australia, 2052, Australia.
出版信息
Carbohydr Polym. 2019 Feb 1;205:330-339. doi: 10.1016/j.carbpol.2018.10.049. Epub 2018 Oct 24.
The aims of this study were to investigate the effects of polyethylene glycol (PEG) molecular weight (MW) and PEG interaction with nanofillers (nanoclay and graphene oxide) on the properties of banana pseudostem nanocellulose films. PEG MW significantly affected the properties of the films. Low MW PEGs (400 and 1000 g/mol) had better interaction with nanocellulose than the PEG with higher MW and improved the flexibility of the films by about 100%. Interaction between PEG1000 and nanofillers significantly modified the properties of the composite films. PEG1000 had a good interaction with nanoclay, which was reflected by the formation of intercalated nanoclay in the cellulose matrix. The presence of nanoclay and graphene oxide in the PEG plasticised films improved the tensile strength and contact angle of the films compared to the film that only contained PEG. These findings suggest that the properties of banana pseudostem nanocellulose film can be improved by combining PEG with nanofillers.
本研究的目的是探讨聚乙二醇（PEG）分子量（MW）和 PEG 与纳米填料（纳米粘土和氧化石墨烯）相互作用对香蕉假茎纳米纤维素薄膜性能的影响。PEG MW 对薄膜性能有显著影响。低 MW PEG（400 和 1000 g/mol）与纳米纤维素的相互作用优于高 MW PEG，使薄膜的柔韧性提高了约 100%。PEG1000 与纳米填料之间的相互作用显著改变了复合薄膜的性能。PEG1000 与纳米粘土具有良好的相互作用，这反映在纤维素基质中形成了插层纳米粘土。与仅含 PEG 的薄膜相比，纳米粘土和氧化石墨烯存在于 PEG 增塑薄膜中，提高了薄膜的拉伸强度和接触角。这些发现表明，通过将 PEG 与纳米填料结合，可以改善香蕉假茎纳米纤维素薄膜的性能。
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