Abstract
AbstractWith in‐situ bending various contents of nano‐sized titanium dioxide (TiO2) were introduced into the solution polymerization system of poly (p‐phenylene benzobisoxazole) (PBO), and the blends were spun into high performance fibers via liquid crystal spinning. The dispersion of TiO2 in matrix was observed by the scanning electron microscopy. The mechanical and thermal properties of PBO and TiO2/PBO fibers were tested by a tensilon and a thermogravimetric analyser. The results show that the tensile strength and modulus of the PBO/TiO2 fiber containing 1.5 wt % TiO2 is 4.62 GPa and 109.99 GPa, which is approximately 36% and 18% higher than that of the pure PBO fiber. The decomposition temperature of the composites is also improved from 697.6°C to 701.8°C. The effect of TiO2 nanoparticles on the structure of PBO is also studied. Copyright © 2009 John Wiley & Sons, Ltd.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
