Surface Modification of Jute Fabric by Treating with Silane Coupling Agent for Reducing Its Moisture Regain Characteristics

ABSTRACT

In the present study, the effect of silane treatment method on reducing the moisture regain of the jute fabric was investigated. Triethoxyvinylsilane, a widely used hydrophobic silane is used as the silane coupling agent. The treated fabrics were characterized by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy/Electron dispersive spectroscopy (SEM/EDS) and for contact angle, moisture regain etc. It was observed that the moisture regain of the jute fabric reduced significantly by this treatment. The contact angle measurement showed that after silane treatment, the surface of the jute fabric became exclusively hydrophobic in nature with a contact angle of 111°. FTIR analysis of the treated fabric showed the presence of Si-O-C linkage on the surface which confirms that the hydroxyl groups of the jute fabric react with the silanol molecules forming Si-O-C linkages. The grafting of silane molecules onto the surface of jute fabric was further confirmed by the presence of silicone atoms detected by electron dispersive spectroscopy. It is expected that the findings of the work will open up new horizons for utilization of jute fabric in the area of healthcare, oil absorbent mat, composites and geo-textiles.

摘要

研究了硅烷处理对黄麻织物回潮率的影响. 三乙氧基乙烯基硅烷是一种广泛使用的疏水性硅烷，用作硅烷偶联剂.用傅立叶变换红外光谱（FTIR）、扫描电子显微镜/电子分散光谱（SEM/EDS）对织物进行了表征，并对织物的接触角、回潮率等进行了表征. 结果表明，处理后黄麻织物的回潮率明显降低。接触角测量结果表明，经硅烷处理后，黄麻织物的表面呈完全疏水性，接触角为111°. 对处理后的织物进行FTIR分析，发现表面存在Si-O-C键，这证实了黄麻织物的羟基与硅醇分子反应形成Si-O-C键. 通过电子分散光谱检测硅原子的存在进一步证实了硅烷分子在黄麻织物表面的接枝. 预计这项研究成果将为黄麻织物在保健、吸油垫、复合材料和土工织物领域的应用开辟新的天地。

KEYWORDS:

• Jute fabric
• silane treatment
• moisture regain
• hydrophobic
• surface modification

关键词:

• 黄麻织物
• 硅烷处理
• 回潮率
• 疏水性
• 表面改性

Acknowledgments

The authors wish to thank Department of Science and Technology, Ministry of Science and Technology, Govt of India for providing financial support and management of Shriram Institute for Industrial Research, India for their encouragement in carrying out the study.

Additional information

Funding

The authors funding by Department of Science and Technology, Ministry of Science and Technology, Govt of India under grants number SP/YO/014/2016 (G).