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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and mechanical properties of polypropylene/clay nanocomposites for automotive parts application
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Preparation and mechanical properties of polypropylene/clay nanocomposites for automotive parts application

机译：汽车零部件用聚丙烯/粘土纳米复合材料的制备及力学性能

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Nanocomposites of polypropylene with organically modified clays were compounded in a twin-screw extruder by a two-step melt compounding of three components, i.e., polypropylene, maleic anhydride grafted polypropylene (PPgMA), and organically modified clay. The effect of PPgMA compatibilizers, including PH-200, Epolene-43, Polybond-3002, and Polybond-3200, with a wide range of maleic anhydride (MA) content and molecular weight was examined. Nanocomposites' morphologies and mechanical properties such as stiffness, strength, and impact resistance were investigated. X-ray diffraction patterns showed that the dispersion morphology of clay particles seemed to be determined in the first compounding step and the further exfoliation of clays didn't occur in the second compounding step. As the ratio of PPgMA to clay increased, the clay particles were dispersed more uniformly in the matrix resin. As the dispersibility of clays was enhanced, the reinforcement effect of the clays increased; however, impact resistance decreased. (c) 2005 Wiley Periodicals, Inc.
机译：聚丙烯与有机改性粘土的纳米复合材料在双螺杆挤出机中通过两步熔融混合三种组分（聚丙烯，马来酸酐接枝聚丙烯（PPgMA）和有机改性粘土）进行复合。检验了PPgMA增容剂（包括PH-200，Epolene-43，Polybond-3002和Polybond-3200）与广泛的马来酸酐（MA）含量和分子量的影响。研究了纳米复合材料的形貌和机械性能，如刚度，强度和抗冲击性。 X射线衍射图谱表明，似乎在第一混合步骤中确定了粘土颗粒的分散形态，并且在第二混合步骤中未发生粘土的进一步剥离。随着PPgMA与粘土的比例增加，粘土颗粒更均匀地分散在基体树脂中。随着黏土分散性的提高，黏土的补强作用增强。但是，耐冲击性下降。 （c）2005年Wiley Periodicals，Inc.

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