研究多元醇和纤维素基增强剂对卡帕卡拉胶薄膜的协同效应

IF 3.9 3区 化学 Q2 POLYMER SCIENCE
Kalpana Rathore, B. Gorbel, Kaushal Shakya, K. Thejaswi, Sandip Das, Vivek Verma
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引用次数: 0

摘要

本研究探讨了加入各种增塑剂和增强剂对κ-卡拉胶(kC)薄膜特性的协同效应。不同的增塑剂(包括多元醇和乙二醇)被用来提高断裂伸长率,而纳米粘土、尿素和不同形式的纤维素被用作增强剂。对使用各种添加剂增塑和增强的卡帕卡拉胶薄膜的物理化学和形态特性进行了量化,包括其溶胀行为、机械强度、化学成分和结构特征。在研究中使用的增塑剂中,与其他增塑剂相比,甘油(相对于 kC 为 30%)增塑薄膜具有更好的伸长特性(48.7%)。在不使用增塑剂的强化卡拉胶薄膜中,与其他强化剂相比,氧化细菌纤维素显示出 89.5 兆帕的最佳机械强度。此外,5% 的细菌纤维素改性卡拉胶薄膜显著保持了用 30% 甘油增塑的 kC 薄膜的机械性能(58.3 兆帕),并提供了 15%的伸长率。在增强薄膜中添加甘油还影响了聚合物基质的吸水率和水蒸气透过率。此外,在增塑卡拉胶薄膜中添加海泡石纳米土等添加剂,可将阻隔性能提高 16%。对κ-卡拉胶薄膜中不同添加剂的综合分析拓宽了食品包装和生物医学应用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigation of synergistic effects of polyols and cellulose-based reinforcements on kappa-carrageenan films

Investigation of synergistic effects of polyols and cellulose-based reinforcements on kappa-carrageenan films

Investigation of synergistic effects of polyols and cellulose-based reinforcements on kappa-carrageenan films

This study investigates the synergistic effects of the incorporation of various plasticizers and reinforcing agents on the characteristics of κ-carrageenan (kC) film. Different plasticizers, including polyols and glycols, were used to improve elongation at break, whereas nanoclay, urea and varied forms of cellulose were used as reinforcing agents. The physicochemical and morphological properties of kappa-carrageenan films plasticized and reinforced with various additives were quantified for their swelling behavior, mechanical strength, chemical composition, and structural features. Among the plasticizers used in the study, glycerol (30% with respect to kC) plasticized films showed better elongation properties (48.7%) as compared to the other plasticizers. In the reinforced carrageenan films, without plasticizer, oxidized bacterial cellulose demonstrated the best mechanical strength of 89.5 MPa as compared to other reinforcement agents. Moreover, 5% bacterial cellulose modified carrageenan film significantly maintained the mechanical properties (58.3 MPa) of the kC films plasticized with 30% glycerol, providing 15% elongation. The addition of glycerol to the reinforced films also influenced the water absorption and water vapor transmission rates of the polymer matrix. In addition, additives like halloysite nanoclay in plasticized carrageenan films demonstrated 16% improved barrier properties. This comprehensive analysis of different additives in κ-carrageenan films broadens the potential for food packaging and biomedical applications.

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来源期刊
Journal of Polymer Science
Journal of Polymer Science POLYMER SCIENCE-
CiteScore
6.30
自引率
5.90%
发文量
264
期刊介绍: Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology.
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