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OALib Journal期刊
ISSN: 2333-9721
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环境因素对pbo纤维老化的影响和储存寿命预测
Keywords: 有机高分子材料,聚对亚苯基苯并二噁唑纤维,？老化,？寿命预测
Abstract:
？研究了紫外光、湿度和温度等环境条件对聚对亚苯基苯并二噁唑(pbo)纤维老化的影响,并对pbo纤维在常规环境下的储存和使用寿命预测进行了初步分析。结果表明:在pbo纤维的老化过程中,紫外光照射造成纤维表皮的强烈破坏,使其强度大幅降低;水分子向纤维内部渗透,使其加速老化和强度降低；温度的升高促进水分子向纤维内部渗透和活动。在避光和避水条件下,pbo纤维具有相当高的耐热氧老化性能。
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