Effect of ethylene glycidyl methacrylate compatibilizer on the structure and mechanical properties of clay nanocomposites modified with ethylene vinyl acetate copolymer

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Department of Chemistry, University of the Free State , Private Bag X13, Phuthaditjhaba 9866, South Africa ^{[1
]}

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Journal of Applied Polymer Science | 2007年 / 103卷 / 06期

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The structure and mechanical properties of clay modified with ethylene vinyl acetate copolymer in the presence of ethylene glycidyl methacrylate (EGMA) were investigated as a function of compatibilizer and clay contents. The structure and properties were determined by X-ray diffraction; transmission electron microscopy; differential scanning calorimetry; and thermogravimetric analysis (TGA). The presence of EGMA caused strong exfoliation of the clay in the polymer matrix; although at higher clay contents; some clay layers still existed. The more effective exfoliation; however; did not seem to substantially influence the tensile properties of the nanocomposites because the EGMA itself had a much stronger influence; which overshadowed any possible influence that the EGMA-clay interaction may have had on these properties. The thermal stability of the nanocomposites (as studied by TGA) improved in the presence of EGMA. © 2006 Wiley Periodicals; Inc;

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页码：4095 / 4101

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