聚乙烯+X%碳纳米管的热分析

Thermal analysis of polyethylene + X% carbon nanotubes.

作者信息

Lozovyi Fedir, Ivanenko Kateryna, Nedilko Sergii, Revo Sergiy, Hamamda Smail

机构信息

R&D Laboratory of Metal and Ceramics Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine.

Laboratory of Thermodynamics and Surface Treatment of Materials, University of Frères Mentouri Constantine 1, B.P. 325 Route Ain El Bey, Constantine, 25017, Algeria.

出版信息

Nanoscale Res Lett. 2016 Dec;11(1):97. doi: 10.1186/s11671-016-1315-y. Epub 2016 Feb 24.

DOI:10.1186/s11671-016-1315-y

PMID:26907455

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4764605/

Abstract

The aim of this research is to study the influence of the multi-walled carbon nanotubes (MWCNTs) on the thermomechanical and structural properties of high-density polyethylene. Several, complementary experimental techniques were used, namely, dilatometry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), Raman spectroscopy, and infrared (IR) spectroscopy. Dilatometry data showed that nanocomposites exhibit anisotropic behavior, and intensity of the anisotropy depends on the MWCNT concentration. The shapes of the dilatometric curves of the nanocomposites under study differ significantly for the radial and longitudinal directions of the samples. DSC results show that MWCNTs weekly influence calorimetry data, while Raman spectra show that the I D/I G ratio decreases when MWCNT concentration increases. The IR spectra demonstrate improvement of the crystallinity of the samples as the content in MWCNTs rises.

摘要

本研究的目的是研究多壁碳纳米管（MWCNT）对高密度聚乙烯热机械性能和结构性能的影响。使用了几种互补的实验技术，即膨胀计法、差示扫描量热法（DSC）、热重分析（TGA）、拉曼光谱和红外（IR）光谱。膨胀计法数据表明，纳米复合材料表现出各向异性行为，且各向异性强度取决于MWCNT浓度。所研究的纳米复合材料的膨胀曲线形状在样品的径向和纵向方向上有显著差异。DSC结果表明，MWCNT对量热数据的影响较小，而拉曼光谱表明，随着MWCNT浓度的增加，ID/IG比值降低。红外光谱表明，随着MWCNT含量的增加，样品的结晶度有所提高。