Hybrid MoS2/h-BN Nanofillers As Synergic Heat Dissipation and Reinforcement Additives in Epoxy Nanocomposites

Autor(es):Mostrar menos -

Ribeiro, Helio ^{[1, 2]} ; Trigueiro, Joao Paulo C. ^{[2, 3]} ; Silva, Wellington M. ^[2] ; Woellner, Cristiano F. ^{[1, 4]} ; Owuor, Peter S. ^[1] ; Chipara, Alin Cristian ^[1] ; Lopes, Magnovaldo C. ^[2] ; Tiwary, Chandra S. ^[1] ; Pedrotti, Jairo J. ^{[1, 5]} ; Salvatierra, Rodrigo Villegas ^[6] ; Tour, James M. ^[6] ; Chopra, Nitin ^[7] ; Odeh, Ihab N. ^[7] ; Silva, Glaura G. ^[2] ; Ajayan, Pulickel M. ^[1]

Afiliação do(s) autor(es)

^[1] Rice Univ, Dept Mat Sci & Nanoengn, 6100 Main St, Houston, TX 77005 - USA

^[2] Univ Fed Minas Gerais, Dept Quim, Ave Antonio Carlos, 6627, BR-31270901 Belo Horizonte, MG - Brazil

^[3] Inst Fed Minas Gerais, Campus Congonhas, Ave Michael Pereira de Souza, BR-36415000 Congonhas, MG - Brazil

^[4] Univ Estadual Campinas, Dept Fis Aplicada, Rua Sergio Buarque de Holanda, 777, BR-13083859 Campinas, SP - Brazil

^[5] Univ Presbiteriana Mackenzie, Ctr Pesquisas Avancadas Grafeno Nanomat & Nanotec, Rua Consolacao, 930, BR-01302907 Sao Paulo, SP - Brazil

^[6] Rice Univ, Dept Chem, 6100 Main St, Houston, TX 77005 - USA

^[7] SABIC Amer Inc, Sugar Land, TX 77478 - USA

• Tipo de documento: Artigo Científico
• Fonte: ACS APPLIED MATERIALS & INTERFACES; v. 11, n. 27, p. 24485-24492, JUL 10 2019.
• Citações Web of Science: 3

Resumo

Two-dimensional (2D) nanomaterials as molybdenum disulfide (MoS2), hexagonal boron nitride (h-BN), and their hybrid (MoS2/h-BN) were employed as fillers to improve the physical properties of epoxy composites. Nano composites were produced in different concentrations and studied in their microstructure, mechanical and thermal properties. The hybrid 2D mixture imparted efficient reinforcement to the epoxy leading to increases of up to 95% in tensile strength, 60% in ultimate strain, and 58% in Young's modulus. Moreover, an enhancement of 203% in thermal conductivity was achieved for the hybrid composite as compared to the pure polymer. The incorporation of MoS2/h-BN mixture nanofillers in epoxy resulted in nanocomposites with multifunctional characteristics for applications that require high mechanical and thermal performance. (AU)

• Processo FAPESP: 16/12340-9 - Propriedades Estruturais e Mecânicas de Espumas Baseadas no Carbono
• Beneficiário: Cristiano Francisco Woellner
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado