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Performances of epoxy-based composites with multi-wall carbon nanotubes and acrylic tri-block copolymer
Nanocomposites ( IF 4.6 ) Pub Date : 2019-05-06 , DOI: 10.1080/20550324.2019.1601804
Hongfeng Li 1, 2 , Zhongliang Liu 3 , Jiyou Gu 3 , Dezhi Wang 1 , Chunyan Qu 1 , Xuefeng Bai 1 , Yingjie Qiao 2
Affiliation  

In order to overcome the weakness of the epoxy-amine network, the acrylic tri-block copolymer (BMG) and the functionalized multi-wall carbon nanotubes (MWCNTs) were prepared in this article. The curing reaction, rheology, thermal and mechanical performance of epoxy-based composites with BMG and MWCNTs were respectively investigated in this study. The curing schedule of the epoxy-based composites was ascertained by using non-isothermal DSC analysis. The rheological analysis showed that the processing time of composites was over 60 min under the processing temperature window from 75 to 200 °C. The mechanical performance of the epoxy-amine network was improved after introducing the dispersed MWCNTs and BMG. In comparison with the neat epoxy-amine network, the tensile strength and impact strength of the composites with the addition of 7.1 wt.% BMG and 0.4 wt.% MWCNTs increased by 11.25 and 36.4%, respectively.



中文翻译:

多壁碳纳米管与丙烯酸三嵌段共聚物的环氧复合材料的性能

为了克服环氧-胺网络的弱点,本文制备了丙烯酸三嵌段共聚物(BMG)和功能化的多壁碳纳米管(MWCNT)。本研究分别研究了BMG和MWCNTs对环氧树脂基复合材料的固化反应,流变性能,热性能和机械性能的影响。通过使用非等温DSC分析确定了环氧基复合材料的固化时间表。流变分析表明,在75至200°C的加工温度范围内,复合材料的加工时间超过60分钟。引入分散的MWCNT和BMG后,环氧胺网络的机械性能得到改善。与纯净的环氧-胺网络相比,复合材料的抗张强度和冲击强度增加了7.1 wt%。

更新日期:2019-05-06
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