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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of polypropylene/clay nanocomposites with polypropylene-graft-maleic anhydride
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Preparation and characterization of polypropylene/clay nanocomposites with polypropylene-graft-maleic anhydride

机译：聚丙烯/接枝-马来酸酐聚丙烯/粘土纳米复合材料的制备与表征

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摘要

Polypropylene (PP)/montmorillonite (MMT) nanocomposites were prepared by the esterification of propylene-g maleic anhydride (MAPP) with MMT modified with alpha,omega-hydroxyamines. The structural characterization confirmed the formation of ester linkages and the interaction between the silicate layers. In particular, X-ray diffraction patterns of the modified clays and MAPP/MMT composites showed 001 basal spacing enlargement as great as 0.14-0.62 nm according to the type of alpha,beta-hydroxyamine. Thermal characterization by thermogravimetric analysis for the composites revealed increased onset temperatures of thermal decomposition. The melting peak temperature decreased, and the crystallization peak temperature increased; this indicated that MMT retarded the crystallization of MAPP. Compounding PP with MAPP/MMT composites enhanced the tensile modulus and tensile strength of PP. However, the elongation at break decreased drastically even when the MMT content was as low as 0.4-2.0 wt %. (c) 2005 Wiley Periodicals, Inc.
机译：聚丙烯（PP）/蒙脱土（MMT）纳米复合材料是通过用α，ω-羟胺改性的MMT对丙烯-g马来酸酐（MAPP）进行酯化制备的。结构表征证实了酯键的形成以及硅酸盐层之间的相互作用。特别地，根据α，β-羟胺的类型，改性粘土和MAPP / MMT复合材料的X射线衍射图显示001基间距扩大至0.14-0.62nm。通过热重分析对复合材料进行的热表征显示出热分解的起始温度升高。熔融峰温度下降，结晶峰温度上升。这表明MMT阻碍了MAPP的结晶。将PP与MAPP / MMT复合材料复合可以提高PP的拉伸模量和拉伸强度。然而，即使MMT含量低至0.4-2.0wt％，断裂伸长率也急剧降低。 （c）2005年Wiley Periodicals，Inc.

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