Sulfonated polyetheretherketone and polyvinylalcohol (SPEEK/PVA) blends under light illumination are capable of producing macromolecular radical anions which can be used for generating metal particles or degrading toxic chemicals. Therefore, modification of textile fabric with SPEEK/PVA blends will enable textile material to develop potentially useful applications. In this work, the cotton fabric was modified by SPEEK/PVA polymeric films via glutaraldehyde (GA) cross linker. The properties of the fabrics such as surface morphology, whiteness, wrinkle recovery, moisture permeability and stiffness were then investigated. It was found that the optimal ratio of PVA to SPEEK was 3 to 1, and the blend film was optically transparent and water-insoluble, which did not significantly alter the performance of cotton fabric.
The antibacterial silver nanoparticles (Ag NPs)-loaded cotton fabric modified by SPEEK/PVA film was prepared by photo-induced method with 350 nm UV light irradiation. Its wearable properties, such as wrinkle recovery, tensile property, thermal stability and water vapour permeability were investigated. It was found that the fabric loaded with Ag NPs retained its brown colour after five cycles of washing in soap solution. TG/DTG analysis indicated that the fabric had two pyrolysis peak temperatures at about 370 °C and 500 °C, and the loading of Ag NPs improved the thermal stability of the cotton fabric. The crease recovery angles of the fabric in both warp and weft directions increased with the generation of Ag NPs. However, both the breaking force and elongation at break decreased with the generation of Ag NPs due to the use of UV irradiation, which is destrimental to the mechanical performance of textile materials. Moreover, the deposition of Ag NPs led to a minor decrease of the water-vapour transmission rate. The hand-feel evaluation showed that the softness of the fabric improved whilst the smoothness declined with the loading of Ag NPs. The water contact angle was found to be 135.2°, indicating that the Ag NPs-loaded cotton fabric had excellent hydrophobicity.
危险品化学品经营许可证（带存储）