Department of Technical and Industrial Education, Faculty of Education, Helwan University, Egypt.
Printing, Dyeing and Finishing Department, Faculty of Applied Arts, Helwan University, Cairo, Egypt.
Luminescence. 2022 Aug;37(8):1376-1386. doi: 10.1002/bio.4310. Epub 2022 Jun 25.
Linen fibres were coated with a glow-in-the-dark photoluminescence, flame-retarding, and hydrophobic smart nanocomposite using the pad-dry-curing process. Ecologically friendly ammonium polyphosphate and lanthanide-activated strontium aluminium oxide (LSAO) nanoparticles were immobilized into linen fabric using eco-friendly room-temperature-vulcanizing silicone rubber. Different analytical techniques were used to examine the morphological characteristics and elemental compositions of LSAO nanoparticles and treated linen textiles. The self-extinguishing properties of the treated linen textiles were tested for their fire resistance. After 24 washing cycles, the coated linen samples retained their flame-retarding properties. The treated linen's superhydrophobicity rose in direct proportion to the LSAO concentration. After being excited at 365 nm, the colourless luminescent film that was coated on linen surface gave out an emission wavelength of 519 nm. The photoluminescent linen was monitored to create a range of different colours, including off-white in daytime light and green under ultraviolet (UV) light radiation, according to the Commission Internationale de l'éclairage laboratory colorimetric coordinates and photoluminescence spectra. Emission, excitation, and lifetime spectral analysis of the treated linen revealed persistent phosphorescence. For mechanical and comfort evaluation, the coated linen textiles' bending length and air permeability were assessed. Good UV light shielding and enhanced antibacterial activity were detected in the treated linens.
采用浸轧烘固法，将具有自发光、阻燃和疏水性的智能纳米复合材料涂覆在亚麻纤维上。将环保型室温硫化硅橡胶固定在亚麻织物上，将环保型的多聚磷酸铵和镧系元素激活的锶铝氧化物（LSAO）纳米颗粒固定在亚麻织物上。采用不同的分析技术来检测 LSAO 纳米颗粒和处理后的亚麻织物的形貌特征和元素组成。对处理后的亚麻织物的自熄性能进行了耐燃性测试。经过 24 次洗涤循环后，涂覆的亚麻布仍保持其阻燃性能。处理后的亚麻布的超疏水性与 LSAO 浓度呈正比增加。涂覆在亚麻表面的无色发光薄膜在 365nm 激发下发出 519nm 的发射波长。通过监测磷光亚麻布，可以根据国际照明委员会（Commission Internationale de l'éclairage）的实验室比色坐标和磷光光谱，创造出一系列不同的颜色，包括日光下的灰白色和紫外（UV）光下的绿色。处理后的亚麻布的发射、激发和寿命光谱分析显示出持久的磷光。为了进行机械和舒适评估，评估了涂覆亚麻布的弯曲长度和透气性。处理后的亚麻布具有良好的紫外线屏蔽和增强的抗菌活性。
