(EN)
The present invention relates to polybenzazole fibers or filaments, staple fibers, spun yarns, and woven or knitted fabrics containing in themselves an organic pigment having heat resistance as high as a thermal decomposition temperature of 200 DEG C. or higher, and soluble in a mineral acid and having group(s) of -N=and/or NH- in the molecule, such as any of perinones and/or perylenes, any of phthalocyanines, any of quinacridones, and any of dioxazines, wherein they have a strength retention of 50% or higher when exposed to light from a xenon lamp for 100 hours and having a tensile strength retention of 85% or higher after exposed to an atmosphere of a temperature of 80 DEG C. and a relative humidity of 80% for 700 hours. The polybenzazole fibers or filaments, staple fibers, spun yarns, and woven or knitted fabrics can be used for cords for reinforcing rubber, sheets and rods for reinforcing cement/concrete, composite materials, sail clothes, ropes, knife proof vests and bullet proof vests.
(ZH) 一种聚吲哚纤维、短纤维、细纱和编织物，纤维中含有perinone和/或苝类、酞菁类、喹吖酮类、二嗪类等分子结构中具有-N＝和/或NH-基的、热分解温度在200℃以上并且溶解于无机酸的高耐热性有机颜料，氙光中暴露100小时后的强度保持率为50%以上，并且在温度80℃相对湿度80%的气氛下暴露700小时后的拉伸强度保持率在85%以上。它们可以用于橡胶增强用软线、水泥·混凝土增强用薄片和杆、复合材料、帆布、绳、防弹防刀背心。