Nonisothermal Crystallization Behavior of In-Situ Formed Polyethylene/Montmorillonite (PE/MMT) Nanocomposites Through Ethylene Copolym-erization

B. Shi, Cun-Yue Guo, Y. Ke, Mingge Zhang, You-liang Hu
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引用次数: 6

Abstract

PE/MMT nanocomposites containing different amount of MMT were measured for isothermal crystallization. The combination of Ozawa equation and Avrami equation was found applicable in explaining the crystallization behavior of the nanocomposites. In certain range of MMT loadings, MMT particles played the role of nucleating agents that pro- moted the crystallization rate of the polymer matrix, thus making the adjustment of the crystallinity of PE nanocomposites flexible and convenient.
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乙烯共聚原位形成聚乙烯/蒙脱土纳米复合材料的非等温结晶行为
采用等温结晶法测定了含不同量MMT的PE/MMT纳米复合材料的结晶性能。发现Ozawa方程和Avrami方程的组合可以很好地解释纳米复合材料的结晶行为。在一定的MMT负载范围内,MMT颗粒起到成核剂的作用,促进了聚合物基体的结晶速率,从而使PE纳米复合材料结晶度的调节变得灵活和方便。
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