Papers by Keyword: Dipentaerythritol

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Authors: Zheng Zhou Wang, Lin Liu, Gan Xin Jie, Ping Kai Jiang
Abstract: Flame retarded ethylene-vinyl acetate copolymer (EVA) was prepared in a melt process containing melamine phosphate (MP), or MP in combination with dipentaerythritol (DPER) as flame retardants. The influence of MP and MP/DPER on flame retardant properties of EVA was investigated by limiting oxygen index (LOI) and UL 94 test. Thermal decomposition of the flame retardants and flame retarded EVA composites was studied by the thermogravimetric analysis. The results show that MP used alone in EVA does not exerts good flame retardancy, even at a loading of 50wt%. It is found that the flame retardant properties of the EVA/MP/DPER composites is greatly improved when a suitable amount of MP substituted by DPER. Moreover, mechanical properties of the EVA composites were studied.
Authors: Zheng Zhou Wang, Shao Hong Xu
Abstract: Flammability of polypropylene/vinyl acetate copolymer (PP/EVA) composites containing melamine phosphate (MP) and pentaerythritol (PER) was studied by limiting oxygen index (LOI), and UL 94. It is found that the LOI values decrease with the increase of EVA content in the PP/EVA composites. The thermal decomposition were investigated by thermogravimetric analysis. Moreover, the mechanical properties of the PP/EVA composites were studied. Compared with the flame retarded PP/EVA composites, the incorporation of a small amount of the peroxide (DCP) into the flame retarded composites leads to an increase in both tensile properties and flame retardancy.
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