期刊
POLYMERS FOR ADVANCED TECHNOLOGIES
卷 30, 期 3, 页码 563-572出版社
WILEY
DOI: 10.1002/pat.4492
关键词
fire hazards; intumescent flame retardant (IFR); polypropylene; smoke suppression
资金
- National Natural Science Foundation of China [51775001, 51474009]
Reducing the fire hazard of polypropylene (PP) is an important research direction in the fields of fire safety materials. In this article, a novel Ni-containing char-forming agent (TTPN) was successfully synthesized, using tris(2-hydroxyethyl) isocyanurate (THEIC), terephthalic acid, and nickel dihydrogen phosphate. Then, TTPN was combined with the silica-gel microencapsulated ammonium polyphosphate (OS-MCAPP) to prepare intumescent flame retardant PP composites. From the results of the limiting oxygen index (LOI) test and cone calorimeter, the composite containing 30% IFR (OS-MCAPP: TTPN = 3:2) shows the highest LOI value of 33.5%, and its peak heat release rate is 275.5 kWm(-2), decreased by 79.0% and 37.4% than those of pure PP and the composite containing the char-forming agent without Ni. Meanwhile, the composite containing TTPN present the best smoke and CO2/CO suppression. The results indicate that TTPN has an excellent ability to dramatically reduce the fire hazard of PP.
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