CAJ | 학술논문

根据引起聚对亚苯基苯并双恶唑（PBO）纤维老化的主要因素,选择温度分别对热氧老化与湿热老化中的影响进行了实验与分析。研究显示,在200℃条件下6 d的热氧后,PBO-HM和PBO-AS纤维的抗断裂强度分别为初始强度的86.0%与79.8%;经过6 d相对湿度为80%,温度为95℃的湿热老化,PBO-HM和PBO-AS纤维的强度分别为初始强度的90%和92%。结果表明,随着温度升高,热氧老化和湿热老化都会使PBO纤维的强度下降。
근거인기취대아분기분병쌍악서（PBO）섬유노화적주요인소,선택온도분별대열양노화여습열노화중적영향진행료실험여분석。연구현시,재200℃조건하6 d적열양후,PBO-HM화PBO-AS섬유적항단렬강도분별위초시강도적86.0%여79.8%;경과6 d상대습도위80%,온도위95℃적습열노화,PBO-HM화PBO-AS섬유적강도분별위초시강도적90%화92%。결과표명,수착온도승고,열양노화화습열노화도회사PBO섬유적강도하강。
According to the main factors that cause aging of the PBO fiber, we choose the temperature to pursuit. We analysis the influence of the temperature in the thermal-oxidative aging test and the wet and heat aging test respectively. The studies show that, after the thermal-oxidative aging test under the condition of 6 days and 200 ℃, the breaking strength of PBO-HM and PBO-AS were 86% and 80% of the initial intensity respectively. After the wet and heat aging test under the condition of 6 days, 80%RH and 95 ℃, the breaking strength of PBO-HM and PBO-AS were 90% and 92% of the initial intensity respectively. The results show that with the increasing temperature, both the thermal-oxidative aging test and the wet and heat aging test will decrease the breaking strength of PBO fibers.