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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Adhesion between graphene and polymers: A surface analysis perspective

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Autor(es):
da Costa, M. C. E. [1] ; Sousa, M. R. M. [1] ; Larrude, D. R. G. [1] ; Fechine, G. J. M. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Prebiteriana Mackenzie, Graphene & NanoMat Res Ctr MackGraphe, BR-01302907 Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: EXPRESS POLYMER LETTERS; v. 13, n. 1, p. 52-64, JAN 2019.
Citações Web of Science: 0
Resumo

Efficient adhesion between polymers and two-dimensional materials, such as graphene, is fundamental and crucial for the development of flexible devices or special coating materials as well as defining the quality of the transfer processes for these materials. Mere, contact angle (CA) measurements of four distinct polymers, low-density polyethylene - LDPE, polypropylene - PP, poly (butylene adipate-co-terephthalate) - PBAT and poly (vinylidene-fluoride-co-trifluoroethylene) - PVDF-TrFE, and graphene achieved by chemical vapor deposition (CVD) were used to understand the adhesion phenomena between such materials. The CA measurements were carried out at specific thermal conditions mimicking a transfer process that is based on direct contact of CVD graphene and polymers above their melting temperature (Direct Dry Transfer - DDT). Surface analysis allowed the efficiency of such transfer method to be pre-estimated owing to an understanding of the adhesion properties of both materials by comparing their polar and dispersive components values. However, rheological properties and chemical structures seemed to be equally important in this evaluation, either by molecular weight modification or introduction of chemical groups onto the surface of polymer films. The results allowed for an understanding of the role of the main factors in adhesion phenomena between graphene and polymers and how they can be used to improve graphene coating during transfer processes. (AU)

Processo FAPESP: 14/22840-3 - Transferência direta a seco de grafeno-CVD para substratos poliméricos bidimensionais e tridimensionais
Beneficiário:Guilhermino José Macêdo Fechine
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 16/09608-0 - Avaliação dos fenômenos de interface grafeno-polímero que governam o processo de transferência direta a seco de grafeno CVD para substratos poliméricos
Beneficiário:Matheus Rodrigues Mendes Sousa
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 12/50259-8 - Grafeno: fotônica e opto-eletrônica: colaboração UPM-NUS
Beneficiário:Antônio Hélio de Castro Neto
Linha de fomento: Auxílio à Pesquisa - Programa SPEC