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烷基硅烷处理的椰枣纤维的表面性能。

Surface properties of alkylsilane treated date palm fiber.

机构信息

Maths and Natural Science, Abu Dhabi Women's Campus, Higher Colleges of Technology, Abu Dhabi, United Arab Emirates.

Department of Chemical Engineering, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.

出版信息

Sci Rep. 2022 Jun 13;12(1):9760. doi: 10.1038/s41598-022-13615-1.

DOI:10.1038/s41598-022-13615-1
PMID:35697773
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9192733/
Abstract

The present work focuses on investigating the effect of non-fluoro short-chain alkylsilane treatment on the surface characteristic of date palm (Phoenix dactylifera) fiber. Raw date palm fiber (DPF) was treated with octylsilane and the surface properties of treated fiber was investigated using thermogravimetric analysis (TGA), fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), contact angle analysis and X-ray diffraction (XRD) on configuring the thermal stability, chemical structures and surface properties (morphology, hydrophobicity and crystallinity). The decomposition temperature of 75% mass loss raw and treated DPF, the onset of temperatures were increased from 464 to 560 °C with the introduction of alkylsilane. Hydrophobicity and crystallinity index of the DPF fibers were increased from 66.8° to 116° and 31 to 41, introducing octylsilane to raw DPF. The SEM and XRD experimental results showed that the octylsilane treatment could effectively increase the pore size and crystallinity index as an indication of the removal of non-crystalline cellulosic materials from DPFs. Thermal stability, hydrophobicity and crystallinity of the fibers increased on DFP after alkylsilane treatment. The results indicated that alkylsilane-treated DPFs were a suitable reinforcing substitute for hydrophobic polymer composite.

摘要

本工作重点研究了非氟短链烷基硅烷处理对椰枣（Phoenix dactylifera）纤维表面特性的影响。用辛基硅烷处理原椰枣纤维（DPF），并通过热重分析（TGA）、傅里叶变换红外（FTIR）光谱、扫描电子显微镜（SEM）、接触角分析和 X 射线衍射（XRD）研究处理后纤维的表面性能，以配置热稳定性、化学结构和表面性能（形态、疏水性和结晶度）。75%质量损失的原始和处理的 DPF 的分解温度，起始温度从 464 增加到 560°C，同时引入了烷基硅烷。DPF 纤维的疏水性和结晶度指数从 66.8°增加到 116°和 31 增加到 41，将辛基硅烷引入到原始 DPF 中。SEM 和 XRD 实验结果表明，辛基硅烷处理可以有效地增加孔径和结晶度指数，表明从 DPF 中去除了非晶纤维素材料。烷基硅烷处理后，纤维的热稳定性、疏水性和结晶度增加。结果表明，烷基硅烷处理后的 DPF 是疏水聚合物复合材料的合适增强替代品。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/5faa4fe985b8/41598_2022_13615_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/0c240962b663/41598_2022_13615_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/7bfdc6e608c4/41598_2022_13615_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/ff7f666042ce/41598_2022_13615_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/c2c0521d84b0/41598_2022_13615_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/2ed3ab389211/41598_2022_13615_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/11e8717e276b/41598_2022_13615_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/5faa4fe985b8/41598_2022_13615_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/0c240962b663/41598_2022_13615_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/7bfdc6e608c4/41598_2022_13615_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/ff7f666042ce/41598_2022_13615_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/c2c0521d84b0/41598_2022_13615_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/2ed3ab389211/41598_2022_13615_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/11e8717e276b/41598_2022_13615_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a840/9192733/5faa4fe985b8/41598_2022_13615_Fig7_HTML.jpg

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