Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
Int J Biol Macromol. 2023 Jul 31;244:125384. doi: 10.1016/j.ijbiomac.2023.125384. Epub 2023 Jun 16.
The pad dry cure method was used to coat linen fibers with a smart nanocomposite that has photoluminescence, electrical conductivity, flame resistance, and hydrophobic properties. Environmentally benign silicone rubber (RTV) was utilized to encapsulate rare-earth activated strontium aluminate nanoparticles (RESAN; 10-18 nm), polyaniline (PANi) and ammonium polyphosphate (APP) into linen surface. The flame resistance of the treated linen fabrics was evaluated for their self-extinguishing capabilities. The flame-retardant qualities of linen were retained for 24 washings. Additionally, the superhydrophobicity of the treated linen has markedly improved upon increasing the concentration of RESAN. The colorless luminous film deposited onto linen surface was excited at 365 nm and emitted a wavelength of 518 nm. In accordance with the results of CIE (Commission internationale de l'éclairage) Lab and luminescence analysis, the photoluminescent linen gave rise to diverse colors, including off-white in daylight, green beneath UV radiation and greenish-yellow in a darkened room. The treated linen displayed sustained phosphorescence, as evidenced by decay time spectroscopy. The bending length and air permeability of linen were evaluated for their mechanical and comfort assessment. Finally, the coated linens exhibited remarkable antibacterial activity along with strong UV protection.
采用垫干法将具有光致发光、导电性、阻燃性和疏水性的智能纳米复合材料涂覆在亚麻纤维上。环境友好型硅橡胶（RTV）被用于将稀土激活的铝酸锶纳米粒子（RESAN；10-18nm）、聚苯胺（PANi）和聚磷酸铵（APP）封装到亚麻表面。处理后的亚麻织物的阻燃性能通过自熄能力进行评估。经过 24 次洗涤，处理后的亚麻织物仍保持良好的阻燃性能。此外，随着 RESAN 浓度的增加，处理后的亚麻的超疏水性显著提高。无色发光膜沉积在亚麻表面，在 365nm 处被激发，发射出 518nm 的波长。根据 CIE（国际照明委员会）Lab 和发光分析的结果，光致发光的亚麻在日光下呈现出灰白色，在紫外辐射下呈现出绿色，在黑暗的房间里呈现出绿黄色。处理后的亚麻显示出持续的磷光，这可以通过衰减时间光谱来证明。对亚麻的弯曲长度和透气性能进行了评估，以评估其机械性能和舒适度。最后，涂覆的亚麻织物表现出显著的抗菌活性和强的紫外线防护性能。
