Fabrication and assessment of carboxymethyl guar gum-based sustainable films for packaging application

IF 2.2 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2024-04-24 DOI:10.1007/s00396-024-05257-8

Subodh K. Juikar, Sudhir G. Warkar

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Abstract

This study aimed towards the fabrication of biodegradable packaging films using carboxymethyl guar gum (CMG) as the base material. Various ratios of glycerol (Gly) as a plasticizer and glutaraldehyde (Glu) as a cross-linker were employed in the synthesis of these biopolymer-based films through the solution casting technique. Comprehensive characterization, such as attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), was conducted. The films were further examined for tensile strength, percent elongation, thickness, solubility in water, gloss, haze, and transparency. The maximum tensile strength of 37.82 MPa, maximum percent elongation of 124.20%, maximum gloss of 25.52% at a 20° angle, maximum haze of 41.93%, maximum transparency of 88.53%, and a minimum water solubility of 60.42% were observed for the developed films. This reveals that CMG-based films hold promising potential as a novel biomaterial for future applications in packaging, such as edible coatings and water-soluble, biodegradable packaging films.

Graphical Abstract

Abstract Image

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制作和评估用于包装的羧甲基瓜尔胶基可持续薄膜

本研究旨在以羧甲基瓜尔豆胶（CMG）为基料，制造可生物降解的包装膜。通过溶液浇铸技术，采用不同比例的甘油（Gly）作为增塑剂，戊二醛（Glu）作为交联剂，合成了这些基于生物聚合物的薄膜。对薄膜进行了全面的表征，如衰减全反射-傅立叶变换红外光谱（ATR-FTIR）、差示扫描量热法（DSC）、热重分析（TGA）和扫描电子显微镜（SEM）。对薄膜的拉伸强度、伸长率、厚度、水溶性、光泽度、雾度和透明度进行了进一步检测。结果表明，所开发薄膜的最大拉伸强度为 37.82 兆帕（MPa），最大伸长率为 124.20%，在 20° 角时的最大光泽度为 25.52%，最大雾度为 41.93%，最大透明度为 88.53%，最小水溶性为 60.42%。这揭示了基于 CMG 的薄膜作为一种新型生物材料在未来包装应用中的巨大潜力，例如可食用涂层和水溶性生物可降解包装膜。图文摘要

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.