@article{ref1,
title="A Study on the Performance of Intumescent Flame-retarded Polypropylene with Nano-ZrO<sub>2</sub>",
journal="Journal of fire sciences",
year="2011",
author="Xinlong Wang,  and Lianghu Wu,  and Jin Li, ",
volume="29",
number="3",
pages="227-242",
abstract="Melamine polyphosphate and pentaerythritol were used as intumescent flame retardants to improve the flame retardance (FR) of polypropylene. As a synergistic agent, nano-ZrO<sub>2</sub> was incorporated into the composites at different proportions. The synergistic effects of nano-ZrO<sub>2</sub> were studied by cone calorimeter tests and thermal gravimetric analysis. Based on Fourier transform infrared spectra, X-ray photo-electron spectroscopy, and scanning electron microscopy, it was evident that nano-ZrO<sub>2</sub> efficiently promoted the formation of charred layers with phosphocarbonaceous structures and enhanced the FR of the composites.<p />",
language="en",
issn="0734-9041",
doi="10.1177/0734904110388923",
url="http://dx.doi.org/10.1177/0734904110388923"
}