以玉米皮和菠萝叶纳米纤维素为增强材料的榴莲壳基生物复合薄膜的制备与表征

IF 3.2 4区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Biopolymers Pub Date : 2024-08-08 DOI:10.1002/bip.23619
Nattapron Siribanluehan, Piyachat Wattanachai
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引用次数: 0

摘要

本研究探讨了玉米皮纳米纤维素(CHNc)和菠萝叶纳米纤维素(PLNc)作为增强剂与榴莲壳羧甲基纤维素基薄膜(CMCDH)的结合。通过溶剂浇注法,制备出了不同纳米纤维素含量(15、30 和 45 wt%)的复合薄膜。傅立叶变换红外光谱和 X 射线衍射分析证实了碱性和漂白处理在消除非纤维素成分方面的有效性。透射电子显微镜图像显示了 CHNc 和 PLNc 的棒状形态,尺寸分别约为 206.5 × 7.2 nm 和 150.7 × 6.5 nm。纳米纤维素的加入降低了 CMCDH 薄膜的透明度,同时提高了其拉伸强度、热稳定性和水蒸气透过率。值得注意的是,CMCDH/PLNc(30%)的拉伸强度最高,为 5.06 ± 0.83 兆帕,与 CMCDH 生物膜相比显著提高了 220%。热重分析和差示扫描量热仪的结果表明,纳米纤维素的加入使薄膜的分解温度延迟了约 10°C。此外,CMCDH/PLNc(30%)的水蒸气透过率最低,提高了 20%。不过,扫描电子显微镜分析表明,在纳米纤维素含量最高(45 wt%)时,由于观察到纤维聚集,薄膜的性能受到了影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Preparation and Characterization of Durian Husk-Based Biocomposite Films Reinforced With Nanocellulose From Corn Husk and Pineapple Leaf.

Preparation and Characterization of Durian Husk-Based Biocomposite Films Reinforced With Nanocellulose From Corn Husk and Pineapple Leaf.

This research explores the integration of corn husk nanocellulose (CHNc) and pineapple leaf nanocellulose (PLNc) as reinforcing agents in a carboxymethyl cellulose-based film derived from durian husk (CMCDH). Through a solvent-casting method, composite films were fabricated with varying nanocellulose contents (15, 30, and 45 wt%). Analysis using Fourier transform infrared spectroscopy and x-ray diffraction confirmed the effectiveness of alkaline and bleaching treatments in eliminating noncellulosic components. Transmission electron microscopy image revealed the rod-like morphology of CHNc and PLNc, with dimensions approximately 206.5 × 7.2 nm and 150.7 × 6.5 nm, respectively. The inclusion of nanocellulose decreased the transparency of CMCDH films while enhancing their tensile strength, thermal stability, and water vapor transmission rate. Notably, CMCDH/PLNc(30%) exhibited the highest tensile strength at 5.06 ± 0.83 MPa, representing a remarkable 220% increase compared to CMCDH biofilm. Thermogravimetric analysis and differential scanning calorimeter results indicated that nanocellulose incorporation delayed the film's decomposition temperature by approximately 10°C. Moreover, CMCDH/PLNc(30%) demonstrated the lowest water vapor transmission rate, marking a 20% improvement. However, the film's properties were compromised at the highest nanocellulose content (45 wt%) due to observed fiber aggregation, as revealed by scanning electron microscopy analysis.

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来源期刊
Biopolymers
Biopolymers 生物-生化与分子生物学
CiteScore
5.30
自引率
0.00%
发文量
48
审稿时长
3 months
期刊介绍: Founded in 1963, Biopolymers publishes strictly peer-reviewed papers examining naturally occurring and synthetic biological macromolecules. By including experimental and theoretical studies on the fundamental behaviour as well as applications of biopolymers, the journal serves the interdisciplinary biochemical, biophysical, biomaterials and biomedical research communities.
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