Investigation of the Effect of CNTs on the Mechanical Properties of Biaxial Weft-knitted Thermoplastic Composites 


Vol. 22,  No. 8, pp. 2285-2295, Aug.  2021
10.1007/s12221-021-0300-y


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  Abstract

Within the scope of experiments, three kinds of biaxial weft-knitted (BWK) fabrics with various loop lengths (8.0, 9.2 and 10.5 mm) and multi walled carbon nanotubes (MWCNTs) (0 and 1.7 wt%) were used as reinforcement systems to fabricate MWCNTs integrated thermoplastic composites with polypropylene (PP) resin yarn/glass fiber (GF). The mechanical properties of the composites were investigated by conducting the three-point bending and Charpy impact tests on the specimens. The specimens with the 10.5 mm loop length and 1.7-wt% MWCNTs showed the highest values of flexural strength properties with an improvement of about 15 % in the flexural strength compared to the specimens with the 10.5 mm loop length and without MWCNTs in 0 o direction. The specimens with the 8.0 mm loop length and 1.7-wt% MWCNTs showed the highest values of the Charpy impact energy properties with an improvement of about 23 % in Charpy impact energy compared to the specimens with the 8.0 mm loop length and without MWCNTs in 90 o direction. The improvement in the bending and impact properties of the composites can most likely be attributed to an increase in interfacial adhesion due to the presence of the carbon nanotubes.

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  Cite this article

[IEEE Style]

I. o. t. E. o. C. o. t. M. P. o. B. W. T. Composites, "Investigation of the Effect of CNTs on the Mechanical Properties of Biaxial Weft-knitted Thermoplastic Composites," Fibers and Polymers, vol. 22, no. 8, pp. 2285-2295, 2021. DOI: 10.1007/s12221-021-0300-y.

[ACM Style]

Investigation of the Effect of CNTs on the Mechanical Properties of Biaxial Weft-knitted Thermoplastic Composites. 2021. Investigation of the Effect of CNTs on the Mechanical Properties of Biaxial Weft-knitted Thermoplastic Composites. Fibers and Polymers, 22, 8, (2021), 2285-2295. DOI: 10.1007/s12221-021-0300-y.

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