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Open AccessArticle

Mechanical and Strain-Sensing Capabilities of Carbon Nanotube Reinforced Composites by Digital Light Processing 3D Printing Technology

Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
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Polymers 2020, 12(4), 975; https://doi.org/10.3390/polym12040975
Received: 27 March 2020 / Revised: 13 April 2020 / Accepted: 16 April 2020 / Published: 22 April 2020
Mechanical and strain sensing capabilities of carbon nanotube (CNT) reinforced composites manufactured by digital light processing (DLP) 3D printing technology have been studied. Both CNT content and a post-curing treatment effects have been analyzed. It has been observed that post-curing treatment has a significant influence on mechanical properties, with an increase of Young’s modulus and glass transition temperature whereas their effect in electrical properties is not so important. Furthermore, the strain sensing tests show a linear response of electrical resistance with applied strain, with higher values of sensitivity when decreasing CNT content due to a higher interparticle distance. Moreover, the electrical sensitivity of bending tests is significantly lower than in tensile ones due to the compression subjected face effect. Therefore, the good gauge factor values (around 2–3) and the high linear response proves the applicability of the proposed nanocomposites in structural health monitoring applications. View Full-Text
Keywords: additive manufacturing; 3D printing; digital light processing; DLP; structural health monitoring; thermoset; nanocomposites; carbon nanotubes; CNTs additive manufacturing; 3D printing; digital light processing; DLP; structural health monitoring; thermoset; nanocomposites; carbon nanotubes; CNTs
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MDPI and ACS Style

Cortés, A.; Sánchez-Romate, X.F.; Jiménez-Suárez, A.; Campo, M.; Ureña, A.; Prolongo, S.G. Mechanical and Strain-Sensing Capabilities of Carbon Nanotube Reinforced Composites by Digital Light Processing 3D Printing Technology. Polymers 2020, 12, 975. https://doi.org/10.3390/polym12040975

AMA Style

Cortés A, Sánchez-Romate XF, Jiménez-Suárez A, Campo M, Ureña A, Prolongo SG. Mechanical and Strain-Sensing Capabilities of Carbon Nanotube Reinforced Composites by Digital Light Processing 3D Printing Technology. Polymers. 2020; 12(4):975. https://doi.org/10.3390/polym12040975

Chicago/Turabian Style

Cortés, Alejandro; Sánchez-Romate, Xoan F.; Jiménez-Suárez, Alberto; Campo, Mónica; Ureña, Alejandro; Prolongo, Silvia G. 2020. "Mechanical and Strain-Sensing Capabilities of Carbon Nanotube Reinforced Composites by Digital Light Processing 3D Printing Technology" Polymers 12, no. 4: 975. https://doi.org/10.3390/polym12040975

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