Effects of maleic anhydride grafted ethylene/vinyl acetate copolymer (EVA) on the properties of EVA/silica nanocomposites

Thai Hoang (1) , Nguyen Thuy Chinh (1) , Nguyen Thi Thu Trang (1) , To Thi Xuan Hang (1) , Dinh Thi Mai Thanh (1) , Dang Viet Hung (2) , Chang-Sik Ha (3) , Maëlenn Aufray (4)

1 Institute for Tropical Technology
2 HUST - Hanoi University of Science and Technology
3 Department of Polymer Science and Engineering (Busan, Korea)
4 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Ternary nanocomposites based on ethylene/vinyl acetate copolymer (EVA), maleic anhydride-grafted EVA (EVAgMA), and nanosilica were prepared in a Haake Rheomixer. The structure of the EVA/EVAgMA/silica nanocomposites was characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy. The blending sequence was found to have a significant effect on the microstructure of EVA/EVAgMA/silica nanocomposites and the dispersion behavior of the nanosilica in the EVA matrix. The tensile properties (tensile strength and elongation at break), thermal behavior, crystalline structure and weatherability of the nanocomposites were also studied. The results showed that the above properties of the nanocomposites were enhanced remarkably using 1 wt% EVAgMA.

Mots clés: Ethylene/vinyl acetate copolymer (EVA); Nanosilica; Nanocomposite; Mechanical properties; Thermal stability; Weatherability

Domaines: Matériaux; Mécanique des matériaux [physics.class-ph]

Thai Hoang, Nguyen Thuy Chinh, Nguyen Thi Thu Trang, To Thi Xuan Hang, Dinh Thi Mai Thanh, et al.. Effects of maleic anhydride grafted ethylene/vinyl acetate copolymer (EVA) on the properties of EVA/silica nanocomposites. Macromolecular Research, 2013, vol. 21 (n°11), pp. 1210-1217. ⟨10.1007/s13233-013-1157-8⟩. ⟨hal-01139251⟩