Nano-fumed silica coated novel cellulosic okra fabrics with enhanced hydrophobic, mechanical and thermal properties for high performance bio-composite applications

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2024-08-31 DOI:10.1007/s10570-024-06126-x

A. N. M. Masudur Rahman, Xueping Zhang, Xiaohong Qin

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Abstract

The hydrophilic property of lignocellulosic fibers is the main obstacle to improve the performance of structural bio-composites. To effectively utilize such fibers in high-performance composites, their hydrophobicity must be significantly increased. This study presents the hydrophobicity enhancement of okra woven fabric (OWF) by the application of hydrophobic nano-fumed silica (NFS) coating. Different concentrations of NFS were investigated, and SEM analysis confirmed that 1% NFS coated OWF presented the greatest quantity of nanoparticle deposition. The 1% NFS treated OWF exhibited the highest water contact angle of 137.2 ± 1° (~ 148% increased than uncoated fabric) and the greatest tensile strength of 21.85 ± 1.64 MPa in the warp direction and 15.66 ± 1.73 MPa in the weft direction (~ 46.35% and ~ 42.75% respectively superior to uncoated one). The TGA analysis demonstrated that the thermal characteristics have also been enhanced by NFS coating. The interaction between NFS and OWF has been investigated using FTIR analysis, while their elemental composition has been assessed using EDX and XPS techniques.

Graphical abstract

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纳米气相二氧化硅涂层新型纤维素黄秋葵织物具有更强的疏水、机械和热性能，可用于高性能生物复合材料领域

木质纤维素纤维的亲水性是提高结构性生物复合材料性能的主要障碍。要在高性能复合材料中有效利用这类纤维，必须大幅提高其疏水性。本研究介绍了通过应用疏水性纳米气相二氧化硅（NFS）涂层提高秋葵编织物（OWF）疏水性的方法。研究了不同浓度的 NFS，SEM 分析证实，1% NFS 涂层的 OWF 纳米粒子沉积量最大。经 1% NFS 处理的 OWF 显示出最高的水接触角（137.2 ± 1°）（比未涂层织物高出约 148%）和最大的抗拉强度（经向 21.85 ± 1.64 兆帕、纬向 15.66 ± 1.73 兆帕）（分别比未涂层织物高出约 46.35% 和约 42.75%）。TGA 分析表明，NFS 涂层也增强了热特性。利用傅立叶变换红外光谱分析研究了 NFS 和 OWF 之间的相互作用，并利用 EDX 和 XPS 技术评估了它们的元素组成。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.