Effects on the Thermo-Mechanical and Crystallinity Properties of Nylon 6,6 Electrospun Fibres Reinforced with One Dimensional (1D) and Two Dimensional (2D) Carbon

Materials

Fabiola Navarro-Pardo²  Gonzalo Martínez-Barrera²  Ana Laura Martínez-Hernández³  Vໜtor M. Castaño³  José Luis Rivera-Armenta¹  Francisco Medellín-Rodríguez⁴ 

[1] Division of Postgraduate Studies and Research, Technological Institute of Madero City, Juventino Rosas y Jesús Ureta, Col. Los Mangos, C.P. 89440, Ciudad Madero, Tamaulipas, Mexico; E-Mail:;Materials Science Postgraduate Studies, Faculty of Chemistry, Autonomous University of Mexico State, Km. 12 de la carretera Toluca-Atlacomulco, C.P. 50200, San Cayetano, Toluca, Estado de México, Mexico; E-Mails:;Centre of Applied Physics and Advanced Technology, National Autonomous University of Mexico, Boulevard Juriquilla No. 3001, C.P. 76230, Juriquilla, Santiago de Querétaro, Mexico; E-Mails:;Faculty of Chemical Science, Autonomous University of San Luis Potosí, Av. Manuel Nava 6, Zona Universitaria, C.P. 78210, San Luis Potosí, San Luis Potosí, Mexico; E-Mail:

关键词: carbon nanotubes;    graphene;    polymer nanocomposites;    crystallisation;    mechanical properties;   

DOI  :  10.3390/ma6083494

来源: mdpi

【 摘 要 】

Electrospun one dimensional (1D) and two dimensional (2D) carbon based polymer nanocomposites are studied in order to determine the effect provided by the two differently structured nanofillers on crystallinity and thermo-mechanical properties of the nanofibres. The nanomaterials studied are pristine carbon nanotubes, oxidised carbon nanotubes, reduced graphene oxide and graphene oxide. Functional groups associated with the order structure of the polymers are analysed by infrared and Raman spectroscopies; the morphology is studied by scanning electron microscopy and the crystallinity properties are investigated by differential scanning calorimetry and X-ray diffraction. Differences in crystallisation behaviour between 1D and 2D carbon based nanofibres are shown by their crystallinity degree and their crystal sizes. The nanocomposite crystal sizes perpendicular to the plane (100) decrease with nanofiller content in all cases. The crystallinity trend and crystal sizes are in accordance with storage modulus response. The results also suggest that functionalisation favours interfacial bonding and dispersion of the nanomaterials within the polymer matrix. As a consequence the number of nucleating sites increases which in turn decreases the crystal size in the nanocomposites. These features explain the improved thermo-mechanical properties in the nanocomposites.

【 授权许可】

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