Polymeric Materials Reinforced with Multiwall Carbon Nanotubes: A Constitutive Material Model

Materials

René K. Córdova²  Alex El໚s-Zúñiga²  Luis E. Elizalde¹  Hຜtor R. Siller²  José Antonio Sánchez²  Ciro A. Rodríguez² 

[1] Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo 140 Saltillo, Coahuila CP25250, Mexico; E-Mail:;Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur Monterrey CP64849, Mexico; E-Mails:

关键词: reinforced polymers;    carbon nanotubes;    softening effect;    constitutive model;   

DOI  :  10.3390/ma6072873

来源: mdpi

【 摘 要 】

In this paper we have modified an existing material model introduced by Cantournet and co-workers to take into account softening and residual strain effects observed in polymeric materials reinforced with carbon nanotubes when subjected to loading and unloading cycles. In order to assess the accuracy of the modified material model, we have compared theoretical predictions with uniaxial extension experimental data obtained from reinforced polymeric material samples. It is shown that the proposed model follows experimental data well as its maximum errors attained are lower than 2.67%, 3.66%, 7.11% and 6.20% for brominated isobutylene and paramethylstyrene copolymer reinforced with multiwall carbon nanotubes (BIMSM-MWCNT), reinforced natural rubber (NR-MWCNT), polybutadiene-carbon black (PB-CB), and PC/ABS reinforced with single-wall carbon nanotubes (SWCNT), respectively.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.