Morphology and mechanical properties of EVA/OMMT nanocomposite foams

作者：Ma Jianzhong^*; Duan Zhouyang; Xue Chaohua; Deng Fuquan

来源：Journal of Thermoplastic Composite Materials, 2013, 26(4): 555-569.

DOI：10.1177/0892705712458943

• Ethylene vinyl acetate copolymer
• organically modified montmorillonite
• foam
• morphology
• physical properties

Nanocomposite foams based on ethylene vinyl acetate (EVA) copolymer had been prepared by melt blending EVA with the addition of organically modified montmorillonite (OMMT). The clay interlayer spacing was characterized by x-ray diffraction (XRD). The morphology of the foamed samples was studied using transmission electron microscopy and the cell microstructure was characterized by scanning electron microscope. The cell size distribution of the foamed samples was discussed. The effect of OMMT content in the foamed samples on the cellular structure and mechanical properties had been investigated. It had been shown that the OMMT layer could be used as a heterogeneous nucleation agent to decrease the cell size. The uniformity of cell structure of the foamed samples was improved and the physical properties of EVA/OMMT nanocomposite foams were enhanced by the addition of OMMT.

• 出版日期2013-5
• 单位陕西科技大学