Effect of a novel chitosan-based flame retardant on thermal and flammability properties of polyvinyl alcohol
作者： Shuang Hu , Lei Song , Haifeng Pan , Yuan Hu
DOI: 10.1007/S10973-012-2686-7
关键词:
摘要: A novel natural carbon agent-based flame retardant urea salt of chitosan phosphate (UPCS) has been prepared with chitosan, phosphorus pentoxide, and urea. It was characterized by 13C NMR, 31P Fourier transform infrared spectra (FTIR), X-ray photoelectron spectroscopy. Its influence on thermal properties flammability performance polyvinyl alcohol investigated through thermogravimetric analysis, microscale combustion calorimetry experiment, real time FTIR. The surface morphology the residual char scanning electron microscope measurement. results revealed that UPCS accelerated dehydration action as well formation char. Furthermore, improved presence UPCS.
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