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首页> 外文期刊>Journal of Applied Polymer Science >PP-PP-g-MA-Org-MMT nanocomposites. 1. Intercalation behavior and microstructure
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PP-PP-g-MA-Org-MMT nanocomposites. 1. Intercalation behavior and microstructure

机译：PP-PP-g-MA-Org-MMT纳米复合材料。 1.插层行为和微观结构

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The melt-direct intercalation method was employed to prepare poly(propylene) (PP)-maleic anhydride grafted poly(propylene) (PP-g-MAH)-organic-montmorillonite (Org-MMT) nanocomposites. X-ray diffractometry (XRD) was used to investigate the intercalation effect, crystallite size, and crystal cell parameter in these composites. Two kinds of maleated PP, with graft efficiencies of 0.6 and 0.9 wt %, and two sorts of manufacturing processes were used to prepare nanocomposites and then to investigate their effects on intercalation behavior. The results showed that the intercalation effect was enhanced by increasing the content of PP-g-MAH, using maleated PP with higher graft efficiency, and adopting the mold process. The crystallite size of nanocomposites perpendicular to the crystalline plane, such as (040), (130), (111), and (041), reached the minimum value when the content of PP-g-MAH was 20 wt %. This result indicated that the crystallite size of PP in nanocomposites decreased by proper addition of PP-gMAH. Maximum values in tensile strength (40.2 MPa) and impact strength (24.3 J/m) were achieved when the content of PP-g-MAH was 10 and 20%, respectively. (C) 2003 Wiley Periodicals, Inc. [References: 25]
机译：采用熔融直接插层法制备了聚丙烯（PP）-马来酸酐接枝的聚丙烯（PP-g-MAH）-有机蒙脱土（Org-MMT）纳米复合材料。 X射线衍射法（XRD）用于研究这些复合材料的插层效应，微晶尺寸和晶胞参数。采用两种接枝效率分别为0.6和0.9 wt％的马来酸化PP，以及两种制造工艺来制备纳米复合材料，然后研究它们对插层行为的影响。结果表明，通过增加PP-g-MAH的含量，采用接枝效率更高的马来酸化PP，并采用模塑工艺，可以提高插层效果。当PP-g-MAH的含量为20wt％时，垂直于晶面的纳米复合材料的晶粒尺寸（如（040），（130），（111）和（041））达到最小值。该结果表明，通过适当添加PP-gMAH，纳米复合物中PP的微晶尺寸减小。当PP-g-MAH的含量分别为10％和20％时，抗张强度（40.2 MPa）和冲击强度（24.3 J / m）达到最大值。 （C）2003 Wiley Periodicals，Inc. [参考：25]

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