Preparation of superhydrophobic coatings with alkyltrichlorosilanes for Pinus kesiya wood

IF 1.7 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Journal of Wood Chemistry and Technology Pub Date : 2022-08-25 DOI:10.1080/02773813.2022.2114498

Yulan Jian, Shaowei Lu, Wei-Che Tang, Mingjun Shao, Fuhua San, Hui Wan, Linkun Xie

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引用次数: 2

Abstract

Abstract To explore the typical alkyltrichlorosilane and optimal volume ratio of the alkyltrichlorosilane-toluene solutions for preparing superhydrophobic Pinus kesiya wood, four alkyltrichlorosilanes: methyltrichlorosilane (MTCS), butyltrichlorosilane (BTCS), dodecyltrichlorosilane (DTCS), and octadecyltrichlorosilane (OTCS) were each used to modify the wood samples at different volume ratios of alkyltrichlorosilane-toluene solutions. The Pinus kesiya wood specimens were immersed in the solutions to fabricate superhydrophobic coatings on the wood surface. The wettability of the modified wood surfaces was characterized by water contact angle and water uptake values. The chemical composition of the wood samples was analyzed using X-ray photoelectron spectroscopy (XPS) and attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), and the surface morphology of the modified wood samples was observed using scanning electron microscopy (SEM). The result showed that all types of alkyltrichlorosilane-modified wood changed from hydrophilic to hydrophobic. The wood specimens had the highest water contact angle of 151.8 ± 0.4° and lowest water uptake of 18 ± 0.6 wt.% when 0.25 vol.% MTCS and 0.25 vol.% OTCS solutions were applied, respectively.

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烷基三氯硅烷制备克夏松木超疏水涂料

摘要探讨了制备超疏水性克氏松木材的典型烷基三氯氢硅和烷基三氯氢硅烷-甲苯溶液的最佳体积比，四种烷基三氯氢烷：甲基三氯氢硅（MTCS）、丁基三氯氢硅烷（BTCS）、十二烷基三氯硅烷（DTCS），和十八烷基三氯氢硅（OTCS）分别用于在不同体积比的烷基三氯氢硅烷-甲苯溶液下对木材样品进行改性。将克氏松木材试样浸入溶液中，在木材表面制备超疏水涂层。通过水接触角和吸水值表征了改性木材表面的润湿性。使用X射线光电子能谱（XPS）和衰减全反射傅立叶变换红外光谱（ATR-FTIR）分析了木材样品的化学成分，并使用扫描电子显微镜（SEM）观察了改性木材样品的表面形态。结果表明，所有类型的烷基三氯氢硅改性木材都由亲水性变为疏水性。木材试样的水接触角最高，为151.8 ± 0.4°，最低吸水率为18 ± 0.6 0.25时的重量百分比体积百分比MTCS和0.25 分别应用体积%的OTCS溶液。

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来源期刊

Journal of Wood Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

3.70

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization. JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.