Chemistry Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt.
Pre-Treatment and Finishing of Cellulosic Fabric Department, Textile Research Division, National Research Center, Cairo, Egypt.
Int J Biol Macromol. 2022 Nov 1;220:482-492. doi: 10.1016/j.ijbiomac.2022.08.104. Epub 2022 Aug 17.
Bionanocomposites (BNC1,2) of binary (PPCH-Ag) and ternary (PPCH-TiO-Ag) (PPCH = polyphosphonium chitosan-hydrazone) have been synthesized and immobilized on cellulosic fabrics (CFs) using an environmentally friendly single-step in situ methodology. The results of FTIR, TGA, EDX, SEM, and TEM investigations showed that PPCH and its BNCs were successfully formed on the surface layer of fabrics. Moreover, the BNC2-coated cloth exhibited a superhydrophobic behavior as revealed from the values of water contact angle (WCA) 152.1° and slide angle (SA) 8.7°. The cytotoxicity experiments on epithelial cells confirmed the safety of treated fabrics for human cells. The antimicrobial capabilities of the BNCs-treated textiles were greatly enhanced, with a small preference for BNC1-coated fabric, as compared to the native or other treated fabrics. In contrast, the BNC2-coated fabric demonstrated the highest anti-UV protection capabilities as indicated by its great capacity to reduce the UV transmission (UV-A, 2.1 %; UV-B, 1.8 %) as well as its UPF value (49.2). The durability tests revealed the high resistance of BNC2-CF against harsh washing conditions and their acquired functions sustainability up to 20 washing cycles.
二元（PPCH-Ag）和三元（PPCH-TiO-Ag）（PPCH=聚磷鎓壳聚糖腙）的生物纳米复合材料（BNC1、2）已通过环保的单步原位方法合成并固定在纤维素织物（CF）上。FTIR、TGA、EDX、SEM 和 TEM 研究结果表明，PPCH 及其 BNCs 成功地形成在织物的表面层上。此外，BNC2 涂层布表现出超疏水行为，水接触角（WCA）为 152.1°，滑动角（SA）为 8.7°。上皮细胞的细胞毒性实验证实了处理过的织物对人体细胞的安全性。与天然或其他处理过的织物相比，BNCs 处理过的纺织品的抗菌能力大大增强，而 BNC1 涂层织物的偏好较小。相比之下，BNC2 涂层布表现出最高的抗 UV 保护能力，其对 UV-A（2.1%）和 UV-B（1.8%）的透射率以及 UPF 值（49.2）的降低能力表明其具有很大的容量。耐用性测试表明，BNC2-CF 对恶劣的洗涤条件具有高抵抗力，并且其获得的功能可持续性长达 20 次洗涤循环。
