Polyphenylene sulfide (PPS) fiber is widely used in flame-retardant fabrics, high-temperature filter bags, among other applications. It has excellent heat and corrosion resistance. However, the fibers were characterized by weak photo-stability. Herein, an unique strategy based on second component induced shielding effect for constructing organic-inorganic hybrid nanocomposites were developed by using multi-walled carbon nanotubes (MWCNTs) as effective stabilizers. The photo-stability of PPS/MWCNTs composite fibers were investigated by Xenon-lamp weather resistance test chamber. Moreover, the mechanism for photo-stability enhancement was analyzed by Fluorescence spectrometer, differential scanning calorimeter and thermogravimetric analysis. Compared with neat PPS fiber, it was showed significant improvement in photo-stability of PPS/MWCNTs composite fibers resulting to increased strength retention ratio from 57.8% for neat PPS to 77.3% for PPS/MWCNTs-1.0 fiber. It was finally concluded that the mechanism for enhanced photo-stability of PPS fiber was based on efficient quenching of optically generated excitons by MWCNTs resulted from steady-state fluorescence spectroscopy.

聚苯硫醚（PPS）纤维广泛用于阻燃织物，高温滤袋以及其他应用中。它具有出色的耐热性和耐腐蚀性。然而，纤维的特征在于光稳定性差。在此，通过使用多壁碳纳米管（MWCNT）作为有效的稳定剂，开发了一种基于第二组分诱导的屏蔽效应的独特策略，用于构建有机-无机杂化纳米复合材料。通过氙灯耐候性试验室研究了PPS / MWCNTs复合纤维的光稳定性。此外，通过荧光光谱仪，差示扫描量热仪和热重分析法分析了光稳定性增强的机理。与纯PPS纤维相比，1.0纤维。最终得出结论，增强PPS纤维的光稳定性的机理是基于稳态荧光光谱法对MWCNTs对光学产生的激子的有效猝灭。