Synthesis of a phosphorus/silicon hybrid and its synergistic effect with melamine polyphosphates on flame retardant polypropylene system
Synthesis of a phosphorus/silicon hybrid and its synergistic effect with melamine polyphosphates on flame retardant polypropylene system
复制标题
磷/硅杂化物的合成及其与三聚氰胺聚磷酸盐对阻燃聚丙烯体系的协同作用
DOI：
10.1002/app.38740
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发表时间：
2013-07-05
影响因子：
3
通讯作者：
Cao, K.
中科院分区：
文献类型：
--
作者：
Huang, Y. W.;Song, M. L.;Cao, K.
以二苯基羟基硅烷和螺环季戊四醇二磷酸一氯为原料，通过缩聚反应合成了一种含POSi基团的阻燃剂（SDPS）。通过傅里叶变换红外光谱（FTIR）和1H核磁共振（1H NMR）证实了SDPS的结构。极限氧指数（LOI）测试表明，与PP/SDPS （30 wt %）和PP/MP （30 wt %）体系相比，在22.5 wt %的SDPS和7.5 wt %的聚丙烯体系中，LOI值显著提高到31.4%。燃烧实验进一步证明了SDPS和三聚氰胺聚磷酸盐（MP）在聚丙烯阻燃中的协同作用。热重分析（TGA）和红外热重分析（FTIR-TG）结果表明，协同效应归因于MP的存在催化了POSi带的断裂，MP作为酸性催化剂，从而促进了炭和二氧化硅的形成过程。©2012 Wiley期刊公司j:。变异较大。科学。, 2013年
A novel flame retardant (SDPS) containing POSi bands was synthesized by a condensation polymerization of diphenylhydroxysilane and spirocyclic pentaerythritol di(phosphate monochloride). The structure of SDPS was confirmed by Fourier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR). Limiting oxygen index (LOI) test showed that when loading 22.5 wt % SDPS and 7.5 wt % in polypropylene, LOI value markedly increased to 31.4% in comparison with PP/SDPS (30 wt %) and PP/MP (30 wt %) systems. Combusting experiment further proved a synergistic effect of SDPS and melamine polyphosphates (MP) in flame retarding of polypropylene. Thermogravimetric analysis (TGA) and FTIR-TG results revealed that the synergistic effect was attributed to a catalyzed breaking down of POSi bands in the presence of MP, which acted as an acid catalyst, consequently leading to a facilitated char and silica forming process. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013