通过浮动催化剂化学气相沉积法制备的含碳纳米管的环氧纳米复合材料。

Epoxy Nanocomposites with Carbon Nanotubes Produced by Floating Catalyst CVD.

作者信息

Mordkovich Vladimir Z, Kondrashov Stanislav V, Karaeva Aida R, Urvanov Sergey A, Kazennov Nikita V, Mitberg Eduard B, Pushina Ekaterina A

机构信息

Technological Institute for Superhard and Novel Carbon Materials, 7A Tsentralnaya Street, Troitsk, 108840 Moscow, Russia.

Department of Chemistry, Moscow State University, 1-Str.3 Leninskie Gory, 119991 Moscow, Russia.

出版信息

Nanomaterials (Basel). 2021 May 4;11(5):1213. doi: 10.3390/nano11051213.

DOI:10.3390/nano11051213

PMID:34064324

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8147765/

Abstract

Epoxy nanocomposites with float catalysis-produced CNT felt as a filler were prepared. Parameters such as the curing process, glass transition of epoxynanocomposites, structure and morphology of CNT felt, initial epoxy composition, and epoxy nanocomposites were investigated. The influence of CNT felt on curing process in epoxy nanocomposites with different amounts of curing agent was determined. An exothermic reaction between the curing agent and the surface of CNTs was established. It was found that the structure of epoxy nanocomposites has a high degree of heterogeneity: the presence of fiber-like structures and individualized CNTs is observed together with the regions that are typical for CNTs that are fabricated via a catalytic chemical vapor deposition (CVD). Based on the studies performed, it is possible to predict the production of epoxy nanocomposites with outstanding mechanical and thermophysical properties. In particular, the uncured compositions already obtained in this work can be used for the manufacture of electrically conductive glass and carbon fiber reinforced plastics and functional coatings.

摘要

制备了以浮动催化法制备的碳纳米管毡为填料的环氧纳米复合材料。研究了固化过程、环氧纳米复合材料的玻璃化转变、碳纳米管毡的结构和形态、初始环氧组合物以及环氧纳米复合材料等参数。确定了碳纳米管毡对不同固化剂用量的环氧纳米复合材料固化过程的影响。证实了固化剂与碳纳米管表面之间存在放热反应。发现环氧纳米复合材料的结构具有高度的不均匀性：观察到纤维状结构和单个碳纳米管的存在，同时还有通过催化化学气相沉积（CVD）制备的碳纳米管典型的区域。基于所进行的研究，可以预测具有优异机械和热物理性能的环氧纳米复合材料的生产。特别是，这项工作中已经获得的未固化组合物可用于制造导电玻璃、碳纤维增强塑料和功能涂层。