Effect of ZnO Nanoparticles on the UV Resistance of Poly(pphenylene benzobisoxazole) Fiber 


Vol. 55,  No. 6, pp. 432-437, Dec.  2018
10.12772/TSE.2018.55.432


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  Abstract

Poly(ρ-phenylene benzobisoxazole) (PBO) and it’s nanocomposites with ZnO nanoparicles containing 0.5−2.0 wt% were successfully fabricated in poly(phospheric acid) and P2O5 via in situ polymerization to investigate the improvement for the UV resistance of PBO fiber. The as-polymerized solutions having 14 wt% of PBO solid content were spun at liquid crystalline state through dry-jet wet spinning to prepare PBO and it’s nanocomposite fibers. It was found that the ZnO nanoparticles were dispersed individually in the fibers from SEM observation because of in situ polymerization for a long time up to 33 h. It was concluded that ZnO nanoparticles were significantly effective in enhacing UV resistance of PBO fiber even at low addition amount by exhibiting much lower reduction in tensile strength under the same UV exposure time.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)