Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology
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Changjin Li
Abstract
The morphological distribution of carbon nanotubes (CNTs) in polymer matrix has a crucial impact on the performance of CNT-filled polymer composites. A novel microlayer extrusion technology used in the dispersion and orientation of CNTs was proposed, and polypropylene (PP)/multiwalled CNT (MWCNT) composites with different numbers of layers were prepared with it. The MWCNT dispersion was investigated by scanning electron microscopy and Raman mapping method, and the MWCNT orientation was quantified by Raman spectroscopy. The influences of the dispersion and orientation of MWCNTs on the electrical conductivity and crystallization behavior of the composites were investigated. The results showed that the anisotropic conducting properties of the multilayered composites varied distinguishably with the increase of layer numbers and rotation speed. Furthermore, the degree of crystallinity of PP increased when the layer number increased from 1 to 729. All of these results suggest that with the increase of the layer numbers and the rotation speed, the dispersion and orientation of MWCNTs in PP matrix improve greatly. Overall, we provide an efficient and practical approach to control the dispersion and orientation of CNT in polymer matrix, which has a promising application prospect in the field of plastic processing.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 21174015
Award Identifier / Grant number: 51603009
Funding statement: Funding: Fundamental Research Funds for the Central Universities, (Grant/Award Number: ‘YS1403’). National Natural Science Foundation of China (grant no. 21174015, 51603009).
Acknowledgments
This research was funded by the National Natural Science Foundation of China (grant no. 21174015, 51603009) and the Fundamental Research Funds for the Central Universities (grant nos. YS1403). The authors express their gratitude to Jiangsu Golden Material Technology Co., Ltd., for their generous support and use of their laboratory machines.
Conflict of interest statement: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Original articles
- 3D printing of hydroxyapatite polymer-based composites for bone tissue engineering
- Studies on the effects of 4,4′-dihydroxyphenyl on crystallization and melting behavior of poly (butylene terephthalate)
- Effect of the particulate morphology of resin on the gelation process of PVC plastisols
- Effect of aluminum nitride concentration on different physical properties of low density polyethylene based nanocomposites
- Application of polyurethane membrane with surface modified ZSM-5 for pervaporation of phenol/water mixture
- Synergistic effects of hybridization of carbon black and carbon nanotubes on the mechanical properties and thermal conductivity of a rubber blend system
- Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology
- Mechanical performance and electromagnetic shielding effectiveness of composites based on Ag-plating cellulose micro-nano fibers and epoxy
- Effect of screw configuration on the dispersion of nanofillers in thermoset polymers
- Study of a novel co-rotating non-twin screw extruder in processing flame retardant polymer materials
- Thermal influences in the star-pre-distributor of a spiral mandrel die
Articles in the same Issue
- Frontmatter
- Original articles
- 3D printing of hydroxyapatite polymer-based composites for bone tissue engineering
- Studies on the effects of 4,4′-dihydroxyphenyl on crystallization and melting behavior of poly (butylene terephthalate)
- Effect of the particulate morphology of resin on the gelation process of PVC plastisols
- Effect of aluminum nitride concentration on different physical properties of low density polyethylene based nanocomposites
- Application of polyurethane membrane with surface modified ZSM-5 for pervaporation of phenol/water mixture
- Synergistic effects of hybridization of carbon black and carbon nanotubes on the mechanical properties and thermal conductivity of a rubber blend system
- Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology
- Mechanical performance and electromagnetic shielding effectiveness of composites based on Ag-plating cellulose micro-nano fibers and epoxy
- Effect of screw configuration on the dispersion of nanofillers in thermoset polymers
- Study of a novel co-rotating non-twin screw extruder in processing flame retardant polymer materials
- Thermal influences in the star-pre-distributor of a spiral mandrel die
