期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 603, 期 -, 页码 844-855出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.06.153
关键词
Silicon nitride nanosheet; Thermoplastic polyurethane; Flame retardant; Thermal conductivity; Toxic gas
资金
- Postdoctoral Innovative Talents Support Program [BX20190316]
- China Postdoctoral Science Foundation [2020M671905]
- National Key Research and Development Program of China [2016YFB0302104]
The sandwich-like SW-Si3N4 hybrid sheets prepared by supramolecular wrapping act as efficient flame retardants for TPU, showing improved flame retardancy and thermal conductivity of the composites.
A sandwich-like melamine/phytic acid/silicon nitride hybrid (SW-Si3N4) sheets were prepared by supramolecular wrapping as the hybrid flame retardants for thermoplastic polyurethane (TPU). The introduction of Si3N4 sheets as a template could not only induce the generation of two-dimensional phytic/melamine (PAMA) capping layers, but also produce the synergistic flame-retardant effect on TPU composites. Cone test showed that heat release rate (HRR), smoke production rate (SPR) and total smoke production (TSP) values of TPU were decreased obviously by adding SW-Si3N4. TG-IR test indicated the dramatic inhibition of aromatic compound, hydrocarbons, CO and HCN release. Besides, the thermal conductivity of composites was obviously improved by adding SW-Si3N4. This work may provide better reference for developing multi-functional TPU composites for diverse application. (C) 2021 Elsevier Inc. All rights reserved.
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