Preparation and Mechanism of Nano-TiO2 Coatings on Poly(p-phenylene-benzobisoxazole) (PBO) Fiber

Yan Yan Luan; Xue Feng Liu; Zhan Nan Peng; Jian Xin Xie

doi:10.4028/www.scientific.net/MSF.724.274

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Preparation and Mechanism of Nano-TiO₂ Coatings on Poly(p-phenylene-benzobisoxazole) (PBO) Fiber
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HomeMaterials Science ForumMaterials Science Forum Vol. 724Preparation and Mechanism of Nano-TiO2 Coatings on...

Preparation and Mechanism of Nano-TiO₂ Coatings on Poly(p-phenylene-benzobisoxazole) (PBO) Fiber

Abstract:

nanoTiO₂/PBO composite fiber was prepared with a chemical method by depositing nanoTiO₂ on the surface of PBO fiber which was treated by silane coupling agent. The process parameters on the preparation of nanoTiO₂/PBO composite fiber were optimized according to the interfacial adhesion between the composite fiber and epoxy resin, and the coating mechanism of nanoTiO₂/PBO composite fiber was also discussed. The results show that the uniform nanoTiO₂/PBO composite fiber with high interfacial adhesion can be prepared on the PBO fiber which was pretreated by silane coupling agent with a concentration of 1.5 % for 35 min at room temperature, in which the nanoTiO₂ aqueous solution with a concentration of 1.0wt% was ultrasonic dispersed for 1h in alkaline environment (pH 11), and then the PBO fiber was immersed in the dispersed solution at 60 °C for 6 h to prepare nanoTiO₂/PBO composite fiber. The single fiber pull-out strength of the prepared composite fiber was increased by 85.28 % compared with that of the untreated PBO fiber. Silane coupling agent was a bridge of PBO and nanoTiO₂, hydrogen bond association and like dissolves like were attributed to the improvement of interfacial adhesion between nanoTiO₂ and PBO fiber.

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Eco-Materials Processing and Design XIII

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Periodical:

Materials Science Forum (Volume 724)

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274-277

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.724.274

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Online since:

June 2012

Authors:

Yan Yan Luan, Xue Feng Liu, Zhan Nan Peng, Jian Xin Xie

Keywords:

Coating, Nano-TiO₂, PBO Fiber, Silane Coupling Agent KH-550

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