期刊
JOURNAL OF POLYMER RESEARCH
卷 16, 期 2, 页码 81-89出版社
SPRINGER
DOI: 10.1007/s10965-008-9205-3
关键词
Polypropylene; Polydimethylsiloxane; Melamine phosphate; Flame retardant; Thermal degradation
资金
- National Natural Science Foundation of China [20776136]
- Henan Key Laboratory of Preventing and Curing on Coal Mine Gas & Fire of Hennan Polytechnic University [HKLGF200701]
- State Key Laboratory of Fire Science, University of Science and Technology of China [HZ2007-KF07]
- New Century Excellent Talents in University and National 11th Five-year Program [2006BAK01B03, 2006BAK06B06, 2006BAK06B07]
The effect of polydimethylsiloxane (PDMS) in intumescent flame retarded polypropylene (PP) containing melamine phosphate (MP) was studied using limiting oxygen index (LOI), UL-94 test, thermogravimetric analysis (TG), real time Fourier transform infrared (FTIR) and pyrolysis/gas chromatogram/mass spectrometry (Py-GC/MS). It was found that the addition of PDMS into the PP/MP composites leads to a decrease in the LOI values of the PP/MP/PDMS composites, and the values increase gradually with the increase of the PDMS content. The UL-94 test results indicate that the PP/MP/PDMS composite with 30% PDMS reaches the V-0 rating compared with no rating of the PP/MP composite at the same MP loading. The water resistance of the PP/MP/PDMS composites was investigated, and the improved water leaching of MP was observed. The TG and RTFTIR results illustrate the thermal stability of the PP/MP composites containing PDMS is improved. Moreover, the pyrolysis of the PP/MP/PDMS composites was studied by the Py-GC/MS method.
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