Processing of carbon-polymer porous composite from expanded graphite addition on poly(furfuryl alcohol)

Autor(es)

Raissa Samira Rocha da Silva ^[1] ; Silvia Sizuka Oishi ^[2] ; Luiza dos Santos Conejo ; Edson Cocchieri Botelho ^[4] ; Neidenêi Gomes Ferreira ^[5]

Afiliação do(s) autor(es)

^[1] INPE. Laboratório Associado de Sensores e Materiais - Brasil

^[2] INPE. Laboratório Associado de Sensores e Materiais - Brasil

^[4] UNESP. FEG. Departamento de Materiais e Tecnologia - Brasil

^[5] INPE. Laboratório Associado de Sensores e Materiais - Brasil

• Tipo de documento: Artigo Científico
• Fonte: MATERIA-RIO DE JANEIRO; v. 27, n. 2 2022-01-16.

Resumo

ABSTRACT The addition of expanded graphite (EG) on environmentally friendly polymer matrix was systematically studied to produce carbon-polymer porous composite. Firstly, an appropriate EG was produced by monitoring the time and temperature of intercalated graphite thermal expansion while poly(furfuryl alcohol) (PFA) resin was obtained from the furfuryl alcohol polymerization. After PFA synthesis, different EG amounts of 0.2, 0.5, and 1.0 wt% were added in the resin and evaluated by viscosimetry and differential scanning calorimetry that showed EG helped in the crosslink formations decreasing the onset and endset temperatures. PFA resin kept a good fluidity, even for 1.0 wt% EG ensuring its homogeneous impregnation on the polyurethane foams. FTIR analyses confirmed the presence of functional groups on EG, which would contribute to the resin impregnation on the foam porous structure without changing the thermal resistance of the final product. (AU)

• Processo FAPESP: 17/10118-0 - Estudo e aplicação da tecnologia eletroquímica para a análise e a degradação de interferentes endócrinos: materiais, sensores, processos e divulgação científica
• Beneficiário: Marcos Roberto de Vasconcelos Lanza
• Modalidade de apoio: Auxílio à Pesquisa - Temático