scholarly journals Preparation of Composite Materials Containing Polyethylene and Carbon Nanotubes by in situ Ethylene Polymerization over Titanium-Magnesium Catalyst Fixed on the Surface of Carbon Nanotubes

Author(s):  
A.A. Zdanovich ◽  
◽  
M.A. Matsko ◽  
A.V. Melezhik ◽  
A.G. Tkachev ◽  
...  

The data on the preparation of composite materials containing polyethylene and multi-walled carbon nanotubes (MWCNTs) of the Taunit brand are presented. To obtain these composites by in situ polymerization, a catalytic system formed by the interaction of an organomagnesium compound and TiCl4 on the surface of nanotubes was used. The catalyst fixed on the MWCNT surface has a high activity in ethylene polymerization and allows to obtain a polymer with different molecular weight. The data on the formation of a polymer on the MWCNT surface and the morphology of composites formed on various Taunit samples are presented.

2019 ◽  
Vol 136 (46) ◽  
pp. 48212
Author(s):  
Aleksandr A. Zdanovich ◽  
Nina V. Semikolenova ◽  
Vladimir L. Kuznetsov ◽  
Mikhail A. Matsko ◽  
Sergey I. Moseenkov ◽  
...  

2009 ◽  
Vol 58 (7) ◽  
pp. 832-837 ◽  
Author(s):  
Ying Du ◽  
Nantao Hu ◽  
Hongwei Zhou ◽  
Peng Li ◽  
Peng Zhang ◽  
...  

Polymer ◽  
2005 ◽  
Vol 46 (14) ◽  
pp. 5125-5132 ◽  
Author(s):  
Chungui Zhao ◽  
Guanjun Hu ◽  
Ryan Justice ◽  
Dale W. Schaefer ◽  
Shimin Zhang ◽  
...  

2011 ◽  
Vol 236-238 ◽  
pp. 2063-2066
Author(s):  
Xian Kai Jiang ◽  
Ji You Gu ◽  
Yan Hua Zhang

Mechanical properties of polyurethane coating were improved by multi-walled carbon nanotubes (MWNTs) via in situ polymerization and blending polymerization. Fourier transform infrared spectroscopy (FT-IR) measurement was employed to assess the influence of acid treatment on MWNTs. Mechanical properties analysis of polyurethane coatings including tensile strength, elastic modulus, hardness, flexibility, impact resistance were employed to assess the improvement of mechanical properties of polyurethane coating by MWNTs. The results indicated that MWNTs could improve the mechanical properties of polyurethane coatings, and the improvement of polyurethane coatings by MWNTs via in situ polymerization were better than via blending polymerization, and the improvement of polyurethane coatings by acid-treated MWNTs were better than by raw MWNTs.


2014 ◽  
Vol 893 ◽  
pp. 241-244
Author(s):  
Yong Hui Lv ◽  
Bao Xiang Deng

The acidified multi-walled carbon nanotubes (MWNTs-COOH) was obtained by nitric acid treatment on multi-walled carbon nanotubes (MWNTs).The PI/MWNTs-COOH composite films were synthesized by in situ polymerization. The thermal stability, resistance and mechanical properties of PI/MWNTs-COOH composite were evaluated. The results showed that: the composites maintained a good thermal stability with the addition of the MWNTs-COOH; the resistance of the composite film dropped at first, and rose up later. While the tensile strength increased at first and then decreased. In conclusion, the PI/MWNTs-COOH composite films exhibited better thermal, antistatic and mechanical properties compared with neat PI.


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