Title :
Effect of Surface-treated Nano-silica on Thermal Behavior and Flame Retardant Properties of EVA/ATH composites
Author :
Han, Zhi-dong ; Diao, Chanjun ; Dong, Limin ; Zhang, Xianyou
Author_Institution :
College of Materials Science and Engineering, Harbin University of Science and Technology, Harbin, 150040, China. E-mail: harbinzhidonghan@yahoo.com.cn
Abstract :
The effects of nano-silica with different surface treatment on thermal stability, flame retardant properties and mechanical properties of ethylene-vinyl acetate copolymer (EVA) /alumina trihydrate (ATH) composites are discussed by thermal gravimetric analysis (TG), limited oxygen index (LOI) and tensile properties. The results of TG show better thermal stability of composites with nano-silica. The maximal weight loss rate is obviously decreased with the addition of nano-silica. Furthermore, the composites with surface treated nano-silica possess better thermal stability and lower weight loss rate. More residues left at 600°C reveal that surface treated nano-silica can promote the charring of the composites. Thus, improved flame retardant properties of composites with surface treated nano-silica can be discovered as a result of much higher LOI value. Meanwhile, such composites also show improved tensile properties than EVA/ATH at the same loading levels of fillers.
Keywords :
Flame retardants; Materials science and technology; Mechanical factors; Polymers; Silicon compounds; Surface treatment; Temperature; Thermal decomposition; Thermal engineering; Thermal stability;
Conference_Titel :
Solid Dielectrics, 2007. ICSD '07. IEEE International Conference on
Conference_Location :
Winchester, UK
Print_ISBN :
1-4244-0750-8
Electronic_ISBN :
1-4244-0751-6
DOI :
10.1109/ICSD.2007.4290819
