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Synthesis and Properties of Polymerization-Filled Composites Based on Polypropylene and Single-Wall Carbon Nanotubes
Polymer Science, Series B ( IF 1.2 ) Pub Date : 2021-04-08 , DOI: 10.1134/s1560090421020093
O. M. Palaznik , P. M. Nedorezova , V. G. Shevchenko , V. G. Krasheninnikov , T. V. Monakhova , A. A. Arbuzov

Abstract

Composites based on polypropylene and single-wall carbon oxygen-containing nanotubes with a specific surface area of 360 and 500 m2/g are synthesized in the medium of liquid propylene using the catalytic system rac-Me2Si(2-Me-4-PhInd)2ZrCl2/МАО. Optimum polymerization conditions ensuring a fairly high rate of the process are determined, and the composites with the filler content in the range from 0.3 to 13.0 wt % are obtained. It is shown that the presence of functional groups enhances the filler agglomeration tendency during composite formation. Effects of the type of carbon nanofiller on the thermal stability, thermo-oxidative resistance, and thermal and electrophysical characteristics of the composites are studied. It is found that the filler inhibits the processes of oxidation and destruction of polypropylene crystallites.



中文翻译:

基于聚丙烯和单壁碳纳米管的聚合填充复合材料的合成及性能

摘要

使用rac -Me 2 Si(2-Me-​​4-)催化体系在液态丙烯介质中合成了基于聚丙烯和比表面积为360和500 m 2 / g的单壁含碳纳米管的复合材料。PhInd)2 ZrCl 2/МАО。确定确保相当高的过程速率的最佳聚合条件,并且获得填料含量为0.3-13.0wt%的复合材料。结果表明,官能团的存在增强了复合材料形成过程中填料的团聚趋势。研究了碳纳米填料类型对复合材料的热稳定性,抗热氧化性以及热和电物理特性的影响。发现该填料抑制了聚丙烯微晶的氧化和破坏过程。

更新日期:2021-04-08
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