Reinforcement of Aminopropyl-Terminated Siloxane-Treated Carbon Nanotubes in Epoxy Thermosets: Mechanical and Thermal Properties

被引:2
|
作者
Sun, Yuxin [1 ,2 ]
Zhang, Xiwen [1 ,2 ]
Zhao, Dongyu [1 ,2 ,3 ]
机构
[1] Heilongjiang Univ, Sch Chem & Mat Sci, Harbin 150080, Peoples R China
[2] Coll Heilongjiang Prov, Key Lab Chem Engn Proc & Technol High Efficiency C, Harbin 150080, Peoples R China
[3] Heilongjiang Univ, Coll Chem Engn & Mat, Xuefu St 74, Harbin 150080, Peoples R China
关键词
amine functionalization; carbon nanotubes; nanocomposites; mechanical properties; FUNCTIONALIZATION; NANOCOMPOSITES; COMPOSITES; BEHAVIOR; FIBERS; RESIN;
D O I
10.3390/polym15153184
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The synthesis and characterization of aminopropyl-terminated polydimethylsiloxane- treated carbon nanotube (AFCNT)-reinforced epoxy nanocomposites are reported in the current study. The amine functionalization of the CNTs was performed with a reaction to PDMS-NH2. The AFCNTs were homogeneously dispersed in epoxy resin by using an emulsifier and a three-roller mill. The AFCNTs were characterized using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The curing behavior of the epoxy/AFCNT was studied using a differential scanning calorimeter (DSC). The tensile and impact strengths of the 2.0 wt.% AFCNT-reinforced epoxy nanocomposite were enhanced by 43.2% and 370%, respectively. Moreover, the glass transition temperature (T-g) was also enhanced by 21 & DEG;C. Furthermore, significant enhancements were observed in the initial degradation and char yield values. SEM results confirmed that the AFCNTs were highly dispersed in the polymeric matrix.
引用
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页数:13
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