Aniline-Modified Polypropylene as a Compatibilizer in Polypropylene Carbon Nanotube Composites. Issue 13 (2nd September 2018)

• Record Type: Journal Article
• Authors: Martínez-Colunga, Juan Guillermo; Sanchez-Valdes, Saul; Ramos-deValle, Luis Francisco; Perez-Camacho, Odilia; Ramirez-Vargas, Eduardo; Benavides-Cantú, Roberto; Avila-Orta, Carlos A.; Cruz-Delgado, Víctor J.; Mata-Padilla, José M.; Lozano-Ramírez, Tomas; Espinoza-Martínez, Adriana B.
• Is Part Of: Polymer-plastics technology and engineering. Volume 57:Issue 13(2018)
• Page Start: 1360
• Page End: 1366
• Publication Date: 2018-09-02
• Subjects: Aniline -- carbon nanotubes -- compatibilization -- maleic anhydride -- polypropylene; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Periodicals; Engineering -- Periodicals; Plastics -- Periodicals; 668.9
• DOI: 10.1080/03602559.2017.1381251
• Languages: English
• ISSNs: 0360-2559

Abstract

ABSTRACT: Maleic anhydride-grafted polypropylene (PP- g -MA) was reacted with aniline (NH2 C6 H5 ) to produce PP- g -NHC6 H5 and used as a compatibilizer in polypropylene/carbon nanotube composites. Infrared spectroscopy (FTIR) and nuclear magnetic resonance confirmed the reaction between PP- g -MA and aniline. PP- g -NHC6 H5 resulted a better compatibilizer than PP- g -MA, producing good dispersion and homogeneous distribution of the carbon nanotubes with less agglomerates, as observed by SEM analysis. Improved dispersion and distribution is assumed to be due to the π – π interactions between the –C6 H5 ring in the prepared compatibilizer and the hexagonal carbon structure in the nanotubes. In addition, a higher degree of crystallinity (12%) was promoted, since it was favored by π – π interactions. This achieved higher crystallinity promoted an increase in tensile modulus, with only slight changes in tensile strength but with an adverse effect on elongation at break. GRAPHICAL ABSTRACT: