Effect of Electron Beam Irradiation on Thermal and Mechanical Properties of Polyamide Copolymer/Multiwall Carbon Nanotube Composites

2018 ◽  
Vol 24 (1) ◽  
pp. 12-18
Author(s):  
Chengwen Cui ◽  
Yuting Chen ◽  
Yong Zhang
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Carbon Nanotube ◽  
Electron Beam Irradiation ◽  
Multiwall Carbon Nanotube ◽  
Thermal And Mechanical Properties ◽  
Beam Irradiation ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon

Structure of Polymer – Multiwall Carbon Nanotube Composites

2012 ◽  
Vol 504-506 ◽  
pp. 1151-1156
Author(s):  
Andrea Adamne Major ◽  
Károly Belina
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Nonisothermal Crystallization ◽  
Polypropylene Nanocomposites ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon ◽  
Concentration Series

In the last ten years carbon nanotube composites are in the focus of the researchers. Different composition of carbon nanotubes and polymers were produced by IDMX mixer. In the experiments polypropylene, polycarbonate and ABS polymers were used as matrix materials. Nanotube master batches were used to prepare different compositions. Concentration series were manufactured by the dynamic mixer. The prepared materials were characterised by scanning electron microscopy. The carbon nanotubes can be seen on the fractured surfaces. We did not find any sign of agglomerates in the materials. During the investigation of isothermal and nonisothermal crystallization of polypropylene nanocomposites it was shown that the carbon nanotube has nucleating effect on polypropylene. Mechanical properties were determined. It was found that the mechanical properties of the nanocomposites decreased. The flammability of the composites is significantly smaller than the original polymers. Polypropylene nanotube composites above 4% nanotube content were not dripping. It is most probable due to some kind of network structure of the material. We assume that the carbon nanotube creates a physical network in the polymers.

Calorimetric study on mechanically milled aluminum and multiwall carbon nanotube composites

2011 ◽  
Vol 62 (11) ◽  
pp. 1087-1093 ◽  
Author(s):  
Niraj Nayan ◽  
S.V.S.N. Murty ◽  
S.C. Sharma ◽  
K. Sree Kumar ◽  
P.P. Sinha
Keyword(s):  
Carbon Nanotube ◽  
Calorimetric Study ◽  
Multiwall Carbon Nanotube ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon

Microwave absorption properties of magnetite multi-granule nanocluster–multiwall carbon nanotube composites

2019 ◽  
Vol 12 (02) ◽  
pp. 1950011
Author(s):  
Boo Hyun An ◽  
Bum Chul Park ◽  
Amarsingh Bhabu Kanagaraj ◽  
Prerna Chaturvedi ◽  
Hamad Al Yassi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Tape Casting ◽  
Granule Size ◽  
Multiwall Carbon Nanotube ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
X Band ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multiwall Carbon

Fe3O4 multi-granule nanocluster–multiwall carbon nanotube composites for microwave absorbing applications are fabricated by the surface-engineered tape-casting method. The multi-granule nanoclusters are synthesized by a modified polyol hydrothermal method and characterized by transmission electron microscopy, X-ray diffraction and vibrating sample magnetometer. The complex permittivity and permeability of the composites with different granule size of nanoclusters are characterized in X-band range with the reflection method. The absorption peak of the composites are shifted from 11.1[Formula: see text]GHz to 11.51[Formula: see text]GHz as granule size increased from 18[Formula: see text]nm to 35[Formula: see text]nm.

Piezoresistance Characterization of Poly(Dimethyl-Siloxane)-Multiwall Carbon Nanotube Composites

2010 ◽  
Author(s):  
Reza Rizvi ◽  
Sara Makaremi ◽  
Steven Botelho ◽  
Elaine Biddiss ◽  
Hani Naguib
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Multiwall Carbon Nanotube ◽  
Dimethyl Siloxane ◽  
Conducting Filler ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Electronic Textile ◽  
Multiwall Carbon

This study examines the piezoresistive behavior of polymer-conducting filler composites. Piezoresistive composites of Poly(dimethyl-siloxane)-Multiwall Carbon Nanotube (PDMS-MWNT) were prepared using a direct mixing approach. The dispersion and the electrical conductivity of the composites were characterized at various MWNT compositions. The piezoresistive behavior under compression was measured using an Instron Universal Tester/Digital Sourcemeter combination. Negative piezoresistive behavior was observed signifying a reducing mean inter-particulate distance in the composites. Moreover, the sensitivities increased at two compositional values of 3 and 5 wt% MWNT in PDMS, which was associated with the state of MWNT dispersion observed. Tensile piezoresistive behavior of the PDMS-MWNT adhered on a fabric substrate was also characterized. Positive piezoresistive values, indicating increasing inter-particulate distance, were observed. Significant challenges in the implementation of PDMS-MWNT as sensory materials in electronic-textile applications were observed as a result of this study and have been discussed.

Sign in / Sign up

Export Citation Format

Share Document