期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 320, 期 -, 页码 252-264出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2016.08.012
关键词
Supramolecular self-assembly; Molybdenum disulfide; Sandwich-like hybrid sheets; Fire hazards; Catalytic activity
资金
- National Basic Research Program of China (973 Program) [2012CB719701]
- National Natural Science Foundation of China [21374111]
- Fundamental Research Funds for the Central Universities [WK2320000029]
- Research Grants Council of the Hong Kong Special Administrative Region, China [9042047, CityU 11208914]
A novel strategy of using supramolecular self-assembly for preparing sandwich-like melamine cyanurate/MoS2 sheets as the hybrid flame retardants for polyamide 6 (PA6) is reported for the first time. The introduction of MoS2 sheets function not only as a template to induce the formation of two-dimensional melamine cyanurate capping layers but also as a synergist to generate integrated flame-retarding effect of hybrid sheets, as well as a high-performance smoke suppressor to reduce fire hazards of PA6 materials. Once incorporating this well-designed structures (4 wt%) into PA6 matrix, there resulted in a remarkable drop (40%) in the peak heat release rate and a 25% reduction in total heat release. Moreover, the smoke production and pyrolysis gaseous products were efficiently suppressed by the addition of sandwich-like hybrid sheets. The integrated functions consisting of inherent flame retarding effect, physical barrier performance and catalytic activity are believed to the crucial guarantee for the reduced fire hazards of PA6 nanocomposites. Furthermore, this novel strategy with facile and scalable features may provide reference for developing various kinds of MoS2 based hybrid sheets for diverse applications. (C) 2016 Elsevier B.V. All rights reserved.
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