Scholarlink

<p>Coconut oil is a common vegetable oil produced worldwide. It is primarily composed of saturated and unsaturated fatty acids. In this study, fatty acids were extracted from coconut oil and converted to fatty acid chlorides. Commercial cotton fabrics were treated with fatty acid chlorides at various temperatures and times. This treatment aimed to modify the hydroxy groups in cellulose to make the fabrics water-resistant and antibacterial. We confirmed the changes in the fatty acids and fabric modification using Fourier Transform Infrared Spectroscopy (FTIR). Furthermore, the thermal behavior of the modified cotton fabrics was examined through thermogravimetric analysis (TGA), and the crystallinity index before and after modification was evaluated using X-ray Diffraction (XRD). Hydrophobic properties were determined by measuring the water contact angle. The antibacterial and antifungal properties of the unmodified and modified fabrics were assessed by measuring the zone of inhibition of bacterial and fungal species. The results indicated that the modified cotton fabrics exhibited improved hydrophobicity. Even after five home-washing cycles, the hydrophobic qualities remained intact. The modified fabrics demonstrated excellent antibacterial properties; however, they showed no resistance to fungal species. Among the samples, the cotton fabric modified with a concentration of 125&#xa0;ppm fatty acid for 30&#xa0;min exhibited the best overall properties, particularly regarding its yellowness after modification.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of a fatty acid application method for enhanced hydrophobic and antibacterial properties on cotton fabrics

  • 期刊论文

  • 发表日期：

    2026年5月30日

查看全文
  • W. D. M. H. Karunarathna,
  • M. Haritha Nayanajith,
  • C. J. Narangoda,
  • S. A. S. C. Samarasinghe,
  • L. D. C. Peiris,
  • L. Karunanayake

摘要

Coconut oil is a common vegetable oil produced worldwide. It is primarily composed of saturated and unsaturated fatty acids. In this study, fatty acids were extracted from coconut oil and converted to fatty acid chlorides. Commercial cotton fabrics were treated with fatty acid chlorides at various temperatures and times. This treatment aimed to modify the hydroxy groups in cellulose to make the fabrics water-resistant and antibacterial. We confirmed the changes in the fatty acids and fabric modification using Fourier Transform Infrared Spectroscopy (FTIR). Furthermore, the thermal behavior of the modified cotton fabrics was examined through thermogravimetric analysis (TGA), and the crystallinity index before and after modification was evaluated using X-ray Diffraction (XRD). Hydrophobic properties were determined by measuring the water contact angle. The antibacterial and antifungal properties of the unmodified and modified fabrics were assessed by measuring the zone of inhibition of bacterial and fungal species. The results indicated that the modified cotton fabrics exhibited improved hydrophobicity. Even after five home-washing cycles, the hydrophobic qualities remained intact. The modified fabrics demonstrated excellent antibacterial properties; however, they showed no resistance to fungal species. Among the samples, the cotton fabric modified with a concentration of 125 ppm fatty acid for 30 min exhibited the best overall properties, particularly regarding its yellowness after modification.