State Key Laboratory of Fire Science, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
State Key Laboratory of Fire Science, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
J Colloid Interface Sci. 2021 Dec;603:844-855. doi: 10.1016/j.jcis.2021.06.153. Epub 2021 Jun 29.
A sandwich-like melamine/phytic acid/silicon nitride hybrid (SW-SiN) sheets were prepared by supramolecular wrapping as the hybrid flame retardants for thermoplastic polyurethane (TPU). The introduction of SiN 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-SiN. 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-SiN. This work may provide better reference for developing multi-functional TPU composites for diverse application.
一种三明治状的三聚氰胺/植酸/氮化硅杂化（SW-SiN）片通过超分子包裹作为热塑性聚氨酯（TPU）的杂化阻燃剂制备。SiN 片作为模板的引入不仅可以诱导二维植酸/三聚氰胺（PAMA）封端层的生成，而且可以对 TPU 复合材料产生协同阻燃效果。锥形量热试验表明，添加 SW-SiN 后，TPU 的热释放率（HRR）、生烟率（SPR）和总生烟量（TSP）值明显降低。TG-IR 试验表明，芳香族化合物、碳氢化合物、CO 和 HCN 的释放明显受到抑制。此外，复合材料的导热系数通过添加 SW-SiN 明显提高。这项工作可能为开发用于各种应用的多功能 TPU 复合材料提供更好的参考。
