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http://dx.doi.org/10.12772/TSE.2018.55.432

Effect of ZnO Nanoparticles on the UV Resistance of Poly(p-phenylene benzobisoxazole) Fiber  

Kim, Sung Hea (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Lee, Sang Cheol (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
Min, Byung Gil (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Publication Information
Textile Science and Engineering / v.55, no.6, 2018 , pp. 432-437 More about this Journal
Abstract
Poly(${\rho}$-phenylene benzobisoxazole) (PBO) and it's nanocomposites with ZnO nanoparicles containing 0.5-2.0 wt% were successfully fabricated in poly(phospheric acid) and $P_2O_5$ 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.
Keywords
poly(${\rho}$-phenylene benzobisoxazole); PBO fiber; ZnO nanoparticles; UV resistance; reduction of tensile strength;
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