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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical properties of Mg(OH)(2)/polypropylene composites modified by functionalized polypropylene
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Mechanical properties of Mg(OH)(2)/polypropylene composites modified by functionalized polypropylene

机译：官能化聚丙烯改性的Mg（OH）（2）/聚丙烯复合材料的机械性能

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摘要

Modified Mg(OH)(2)/polypropylene (PP) composites were prepared by the addition of functionalized polypropylene (FPP); and acrylic acid (AA) and by the formation of in situ FPP. The effects of the addition of FPP and AA and the formation of in situ FPP on the mechanical properties of Mg(OH)(2)/PP composites were investigated. Experimental results indicated that the addition of Mg(OH)2 markedly reduced the mechanical properties of PP. The extent of reduction in notch impact strength of PP was higher than that in flexural strength and tensile strength. However, tensile modulus and flexural modulus increased with increased Mg(OH), content. The addition of FPP facilitated the improvement in the flexural strength and tensile strength of Mg(OH)(2)/PP composites. The higher the Mg(OH), content was, the more significant the effect of FPP was. The incorporation of AA resulted in further increased mechanical properties, in particular the flexural strength, tensile strength, and notch impact strength of Mg(OH)(2)/PP composites containing high levels of Mg(OH)(2). It not only improved mechanical properties but also increased the flame retardance of Mg(OH)(2)/PP composites. Although the mechanical properties of composites modified by the formation of in situ FPP were lower than those of composites modified by only the addition of AA in the absence of diamylperoxide, the mechanical properties did not decline with increased Mg(OH), content. Moreover, the mechanical properties increased with increasing AA content. The addition of an oxidation resistant did not influence the mechanical properties of the modified Mg(OH)(2)/PP composites. (C) 2003 Wiley Periodicals, Inc. [References: 26]
机译：改性的Mg（OH）（2）/聚丙烯（PP）复合材料是通过添加功能化聚丙烯（FPP）制备的;与丙烯酸（AA）并通过原位FPP形成。研究了添加FPP和AA以及原位FPP的形成对Mg（OH）（2）/ PP复合材料力学性能的影响。实验结果表明，Mg（OH）2的添加显着降低了PP的机械性能。 PP的缺口冲击强度降低的程度高于弯曲强度和拉伸强度。但是，拉伸模量和挠曲模量随着Mg（OH）含量的增加而增加。 FPP的添加有助于Mg（OH）（2）/ PP复合材料的弯曲强度和拉伸强度的提高。 Mg（OH）含量越高，FPP的效果越显着。掺入AA可以进一步提高机械性能，特别是包含高含量Mg（OH）（2）的Mg（OH）（2）/ PP复合材料的弯曲强度，拉伸强度和缺口冲击强度。它不仅改善了机械性能，而且增加了Mg（OH）（2）/ PP复合材料的阻燃性。尽管通过原位FPP形成改性的复合材料的机械性能低于在不存在过氧化二戊基过氧化物的情况下仅添加AA改性的复合材料的机械性能，但是机械性能并没有随着Mg（OH）含量的增加而下降。而且，机械性能随着AA含量的增加而增加。抗氧化的添加不会影响改性的Mg（OH）（2）/ PP复合材料的机械性能。 （C）2003 Wiley Periodicals，Inc. [参考：26]

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