Dong Ying-Qi, Bai Wei-Bin, Zhang Wen, Lin Yu-Cai, Jian Rong-Kun
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China.
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China; Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, China; Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, Fujian Normal University, Fuzhou 350007, China.
Int J Biol Macromol. 2023 Apr 30;235:123782. doi: 10.1016/j.ijbiomac.2023.123782. Epub 2023 Feb 21.
Bio-based hydrophobic coating modified cotton fabrics with durable flame retardancy are of high interest in the application of oil-water separation for not only avoiding the use of hazardous substances but also improving the fire safety during use. Herein, phytic acid@Polyurushiol‑titanium complex coated cotton fabric was developed using the facile dip-coating method involving the sequential immersion in the solution of poly(ethyleneimine), phytic acid, titanium oxide, and urushiol. The underlying coating accommodated abundance of phytic acid, which imparted excellent flame retardancy to cotton fabric, and the top coating composed of the polyurushiol‑titanium complex endowed cotton fabric with high hydrophobicity that the water contact angle (WCA) was up to 149.8°. The hydrophobicity also guaranteed effective protection of the underlying phytic acid against chemical solvents and abrasion. Besides, the hydrophobic coating allowed cotton fabric for good self-cleaning and effective oil-water separation. Therefore, the preparation of phytic acid@polyurushiol‑titanium complex coated cotton fabric offers a promising approach to construct durable biomass-coated cellulose-based fabric with multifunctionality.
具有持久阻燃性的生物基疏水涂层改性棉织物在油水分离应用中备受关注，这不仅是因为避免了使用有害物质，还因为提高了使用过程中的消防安全。在此，采用简便的浸涂法制备了植酸@聚漆酚-钛络合物涂层棉织物，该方法包括依次浸入聚乙烯亚胺、植酸、二氧化钛和漆酚溶液中。底层涂层含有大量植酸，赋予棉织物优异的阻燃性，由聚漆酚-钛络合物组成的顶层涂层赋予棉织物高疏水性，水接触角（WCA）高达149.8°。疏水性还保证了对底层植酸的有效保护，使其免受化学溶剂和磨损的影响。此外，疏水涂层使棉织物具有良好的自清洁性能和有效的油水分离能力。因此，制备植酸@聚漆酚-钛络合物涂层棉织物为构建具有多功能性的耐用生物质涂层纤维素基织物提供了一种有前景的方法。
