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Journal of Spectroscopy
Volume 2015 (2015), Article ID 289298, 7 pages
http://dx.doi.org/10.1155/2015/289298
Research Article

Study of the Synergistic Effect of Nanoporous Nickel Phosphates on Novel Intumescent Flame Retardant Polypropylene Composites

1Key Laboratory of Safety and High Efficiency Coal Mining Ministry of Education, School of Mining and Safety Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China
2IMDEA Materials Institute, C Eric Kandel 2, 28906 Madrid, Spain
3Integrated Composites Laboratory (ICL), Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA

Received 29 October 2014; Revised 29 December 2014; Accepted 12 January 2015

Academic Editor: Luciano Bachmann

Copyright © 2015 Shibin Nie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A char forming agent (CFA) and silica-gel microencapsulated ammonium polyphosphate (Si-MCAPP) were selected to form novel intumescent flame retardant system to prepare flame retardant polypropylene (PP) composites, and then the influences of nanoporous nickel phosphates (NiP) on the thermal and flame retardant properties of flame retardant PP composites were studied by the real time FTIR (RTFTIR) spectra, limited oxygen index (LOI) test, and the scanning electron microscopy. RTFTIR shows the addition of NiP can improve the thermal stability of flame retardant PP composites. LOI test shows LOI value is increased with the increase of the content of NiP, and the optimized concentration of NiP is 1.0%. Furthermore, smoke toxicity of the novel flame retardant PP composites was studied by mice experiment. The upper limit of the no death smoke concentration of the composite is 12.37 mg/L.