Synthesis and Application of Fluorine-free Environment-friendly Stearic Acid-based Oil and Water Repellent for Cotton Fabric

ABSTRACT

Fluorinated compounds are exceptional to exhibit good as well as durable oil and water repellency. However, due to their adverse effect on human and ecology, these compounds are under immense pressure. In this research, stearic acid which is a long-chain bio-based fatty acid is polymerized with a bio-based cross-linker citric acid in the presence of a catalyst. Stearic acid is a fluorine-free, environment-friendly, and nontoxic compound as compared to fluorinated compounds. Optimization of various parameters such as dosage of monomers, polymerization conditions, time, and temperature was carried out. The optimized recipe treated cotton fabric exhibited appreciable oil and water repellency and contact angle as well as the additional performance properties like crease recovery, soil resistance, antimicrobial performance, and shrinkage. Furthermore, the characterization of finished fabric was also carried out by SEM, EDX, XRD, FTIR, ¹ H-NMR spectroscopy analysis.

摘要

含氟化合物表现出良好和持久的拒油防水性能. 然而，由于其对人类和生态的不利影响，这些化合物面临着巨大的压力. 在本研究中，硬脂酸是一种长链生物脂肪酸，在催化剂存在下与生物交联剂柠檬酸聚合. 与含氟化合物相比，硬脂酸是一种无氟、环保、无毒的化合物. 对聚合温度、聚合时间、聚合时间等参数进行了优化. 经优化配方处理的棉织物具有良好的拒油拒水性和接触角，并具有折皱回复性、耐污性、抗菌性和收缩性等附加性能. 此外，通过SEM、EDX、XRD、FTIR、1H-NMR等分析手段对织物进行了表征.

KEYWORDS:

• Oil repellency
• water repellency
• fluorine free
• environment-friendly
• easy-care finish
• antimicrobial

关键词:

• 拒油
• 拒水
• 无氟
• 环保
• 易护理整理
• 抗菌

Additional information

Funding

This work was supported by the University of Engineering and Technology, Lahore [ORIC/100-ASRB/1990].