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

Autor(es)

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

• Tipo de documento: Artigo Científico
• Fonte: COMPOSITES SCIENCE AND TECHNOLOGY; v. 243, p. 8-pg., 2023-09-02.

Resumo

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)

• Processo FAPESP: 21/07858-7 - Caracterizações não convencionais de compósitos multifuncionais híbridos baseados em PA1010/nanomateriais 2D
• Beneficiário: Gabriel Matheus Pinto
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 20/11496-0 - Nanocompósitos multifuncionais baseados em poliamida 1010 e nanomateriais 2D
• Beneficiário: Gabriel Matheus Pinto
• Modalidade de apoio: Bolsas no Brasil - Doutorado