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|Title: ||Improving the mechanical properties of laser-sintered polyamide 12 through incorporation of carbon nanotubes|
|Authors: ||Bai, Jiaming|
Hague, Richard J.M.
|Issue Date: ||2013|
|Publisher: ||Wiley / © Society of Plastics Engineers|
|Citation: ||BAI, J. ... et al, 2013. Improving the mechanical properties of laser-sintered polyamide 12 through incorporation of carbon nanotubes. Polymer Engineering and Science, 53 (9), pp. 1937 - 1946.|
|Abstract: ||Well-dispersed nanocomposite powder with spherical morphology and suitable particle size for processing by laser sintering was successfully produced by coating polyamide 12 (PA12) powder particles with carbon nanotubes (CNTs). Flexural, impact, and tensile test specimens produced by laser sintering the PA12-CNT powder showed no distortion and good definition. The density of the PA12-CNT laser-sintered parts was higher than that of neat PA12, which the authors propose is mainly due to higher laser absorption by the CNT particles. Compared to the laser-sintered PA12 parts, PA12-CNT parts showed enhanced flexural, impact, and tensile properties without sacrificing elongation at break. This enhancement may be attributed to the good dispersion of the CNT in the PA12 matrix and denser laser-sintered parts. Considering the low weight percentage of CNT used (0.1 wt%), it would seem that the method used in this work is a cost efficient and effective way to produce polymer nanocomposite powders for laser sintering, while maintaining the optimum powder morphology for the laser sintering process and enhancing the mechanical properties of the laser-sintered part.|
|Description: ||This paper is closed access.|
|Publisher Link: ||http://dx.doi.org/10.1002/pen.23459|
|Appears in Collections:||Closed Access (Materials)|
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