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Jiao, C., Wang, Z., Ye, Z., Hu, Y. and Fan, W.C., 2005. Combustion Characteristics Of Nano Hydrotalcite Flame Retarded Ethylene Vinyl Acetate Copolymer. Fire Safety Science 8: 1133-1143. doi:10.3801/IAFSS.FSS.8-1133
The flame retardant effects of nano hydrotalcite (NLDH) on ethylene vinyl acetate copolymer (EVA) have been studied by using the limited oxygen index (LOI), UL-94 test, cone calorimeter test (CCT), and thermogravimetric analysis (TG). The LOI values of both EVA14/NLDH and EVA28/NLDH increase gradually with increasing of NLDH content. The LOI value of EVA14/NLDH is higher than that of EVA28/NLDH at the same additive level. In the UL-94 test, the difference of the VA content has no obvious effect on the combustion rating. From the CCT data, it can be seen that NLDH is not only an effective HRR reducer, but also a smoke suppressant. The TG and DTG data show that NLDH increases the thermal stability of EVA copolymer. Moreover, mechanical properties of the filled EVA composites were measured.