The micromechanics of graphene oxide and molybdenum disulfide in thermoplastic nanocomposites and the impact to the polymer-filler interphase

Author(s)

Cremonezzi, Josue Marciano de Oliveira ; Pinto, Gabriel Matheus ; Mincheva, Rosica ; Andrade, Ricardo Jorge Espanhol ; Raquez, Jean-Marie ; Fechine, Guilhermino Jose Macedo

• Document type: Journal article
• Source: COMPOSITES SCIENCE AND TECHNOLOGY; v. 243, p. 8-pg., 2023-09-02.

Abstract

The addition of two-dimensional nanomaterials to a polymer matrix is a widely known manner to mechanically reinforce the material. The stress-transfer in the polymeric matrices, however, depends on an array of filler and matrix properties as well as on their interface. In this work, we discuss the effects of the distinct levels of interaction of graphene oxide, reduced graphene oxide and molybdenum disulfide with poly(vinyl butyral) in the reinforcement of the polymer. For that, we employed the micromechanical analysis model originally developed by Young et al., which describes the reinforcement behavior of graphene nanoplatelets in a wide range of polymer matrices. Then, using an innovative approach derived from such analysis, we propose novel methods to mathematically evaluate the effects of the filler content upon the polymer/filler interface, and for the determination of the mechanical percolation threshold. (AU)

• FAPESP's process: 21/07858-7 - Unconventional characterizations of multifunctional hybrid polymadie 1010/2D nanomaterials based composites
• Grantee: Gabriel Matheus Pinto
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 20/11496-0 - Polyamide 1010 and 2D nanomaterials based hybrid multifunctional nanocomposites
• Grantee: Gabriel Matheus Pinto
• Support Opportunities: Scholarships in Brazil - Doctorate