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Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (02): 199-204. Previous Articles    

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抗紫外老化聚对苯撑苯并二噁唑(PBO)纤维的制备与表征

张涛，金俊弘，杨胜林，李光*，江建明   

  1. (纤维材料改性国家重点实验室 东华大学材料科学与工程学院 上海 201620)
  • 投稿日期:2009-06-06 修回日期:2009-07-24 发布日期:2010-03-17
  • 通讯作者: 李光 E-mail:lig@dhu.edu.cn

Preparation and Characterization of Poly(p-phenylene benzobisoxazole) (PBO) Fiber with Anti-ultraviolet Aging

Zhang Tao Jin Junhong Yang Shenglin Li Guang* Jiang Jianming   

  1. (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science & Engineering, Donghua University, Shanghai 201620)
  • Received:2009-06-06 Revised:2009-07-24 Published:2010-03-17

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The modified poly(p-phenylene benzobisoxazole) (PBO) fibers, which exhibit anti-ultraviolet properties, were prepared by chemical copolymerization and physical blend methods. Mechanical property, intrinsic viscosity, SEM and ATR-FTIR techniques were used to characterize the fiber change before and after UV accelerated aging. Based on ATR-FTIR of PBO fibers before and after UV exposure, the UV aging degradation mechanism of PBO fiber was proposed. The results indicate that the DHPBO and DHPBO/n-TiO2 fibers show significantly improved UV resistance compared with the PBO fiber. In addition, the UV resistance of nano-rutile-TiO2 was obviously better than that of 2,2-[ethylenedi(p-phenylene)]bis- benzoxazole.

Key words: PBO fiber, anti-UV aging, mechanical property, degradation mechanism