Effect of Nano Anhydrous Magnesium Carbonateon Fire-Retardant Performance of Polylactic Acid/Bamboo Fibers Composites
Abstract:Polylactic acid/bamboo fibers (PLA/BF) composites, which are extremely flammable, must be carried out fire-retardant processing. However, traditional organic flame retardants release certain amount of pollutant to the environment, and inorganic flame retardants require more addition, which influenced the mechanical properties of composites. Therefore, nano inorganic flame retardants, which have some characteristics of small size, uniform shape and high specific surface area, can bring good flame-retardant effect with relatively few addition. Meanwhile, it can enhance the interaction of composites interface, and disperse more evenly in polylactic acid matrix. Furthermore, it has light influence on the physical mechanical properties. In this study, nano anhydrous magnesium carbonate (NAMC) is used as flame retardant, Cone Calorimeter and Dynamic Thermal Mechanical Analyzer are adopted for studying the fire-retardant properties and the dynamic thermodynamic parameters of the polylactic acid/bamboo fiber composites, respectively. Results show that nano anhydrous magnesium carbonate flame retardant have good fire-retardant performance for the polylactic acid/bamboo fiber composites, considering practicality and economy, its ideal addition is 5%.
Document Type: Research Article
Publication date: December 1, 2011
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