Comparative analysis among coating methods of flexible polyurethane foams with graphene oxide

Fenner, Bruna Rossi; Zimmermann, Matheus Vinícius Gregory; Silva, Michelle P. da; Zattera, Ademir J.

doi:10.1016/j.molliq.2018.08.113

Cited by 24 publications

(13 citation statements)

References 20 publications

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“…In cycle 3, the sample has an increase in the sorption capacity. According to Fenner et al (2018) [36], this phenomenon is due to foam structure having mixture of open and closed cells, and by forcing the oil removal by compression, the film in the pore of the cell split, increasing the number of connected cells, thus favoring the passage of oil through the structure as well as filling it with oil. After 50 cycles, the sample begins to show a decrease in the sorption capacity, probably due to the deterioration of the PU foam skeleton structure.…”

Section: Resultsmentioning

confidence: 99%

Sorbent system based on organosilane-coated polyurethane foam for oil spill clean up

et al. 2020

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In this study, flexible and open cell polyurethane foams were formulated and chemically modified with organosilane to be used as a sorbent system for oil spill cleanup. Six polyurethane foams with different densities and three oil types with different viscosities were investigated. Moreover, sorbents were characterized based on their surface modification and sorption capacities. The main results indicated that the surface treatment on the solid fraction of the foam was effective, observing by the contact angle, thereby increasing the hydrophobicity of the samples. Cell morphology and foam density directly affect the sorption capacity of foams. Foams with high densities are indicated for oils with low viscosity, and foams with low densities are indicated for viscous oils. The oil sorption capacity also depends on oil viscosity (and temperature).

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Section: Resultsmentioning

confidence: 99%

Sorbent system based on organosilane-coated polyurethane foam for oil spill clean up

et al. 2020

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“…O derramamento de resíduos oleosos na água é um problema ambiental recorrente em todo o mundo e possui impactos catastróficos para os ecossistemas marinhos (Anju & Renuka, 2020;Min et al, 2019;Ge, 2016;Shanhu et al, 2015;Jamsaz et al, 2020;Yuying et al, 2020;Lei et al, 2017;Ge et al, 2015;Fenner et al, 2018).…”

Section: Introductionunclassified

Caracterização Microestrutural E Perfil De Microdureza De Aço Api 5l X80 Obtido Por Processo TMCR

Júnior¹,

Cruz²,

Silva³

et al. 2021

Engenharia De Materiais E Metalúrgica: Tudo À Sua Volta 2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…Generally, the mechanical strength of the PUF is improved by including a filler material during its fabrication. In previous studies, diverse additives such as glass fibers, [19][20][21][22][23] carbon, 11,24,25 silica, 26 graphene, 27 and nanoparticles 28 have been applied as filler material. For example, Yu et al 19 showed that adding 10 wt% of chopped fiber to PUF improves the mechanical strength by 50% at cryogenic temperatures.…”

Section: Introductionmentioning

confidence: 99%

Impact behavior of hollow glass bubble reinforced foam core LNG insulation panel in cryogenic temperature

Lee

Bae

Hwang

et al. 2020

Journal of Composite Materials

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Composite sandwich panels are applied to numerous structures owing to their excellent mechanical properties and thermal performance. In marine craft, sandwich panels are located on the inner walls as an insulation system for the liquefied natural gas (LNG) cargo containment systems (CCSs). Polyurethane foam (PUF), as an insulation material, is commonly used as the core material against a cryogenic temperature of –163°C for the LNG CCSs. Owing to its excellent thermal performance that prevents heat flow from the outside, and because LNG is transported at cryogenic temperatures, PUF is the preferred choice as a core material. However, the LNG CCS is subjected to fluid impact load due to sloshing during a laden voyage, and therefore, the core material needs to be reinforced. In this study, a reinforcement material made of hollow glass bubbles (HGBs) was added to PUF to help withstand the sloshing loads, and the performance of the specimens was investigated in terms of their impact strength and absorption energy. The mechanical impact strength of the final products was investigated through an impact test at cryogenic temperatures and the absorption energy was analyzed along with the dynamic compressive behavior of the sandwich panels.

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Comparative analysis among coating methods of flexible polyurethane foams with graphene oxide

Cited by 24 publications

References 20 publications

Sorbent system based on organosilane-coated polyurethane foam for oil spill clean up

Sorbent system based on organosilane-coated polyurethane foam for oil spill clean up

Caracterização Microestrutural E Perfil De Microdureza De Aço Api 5l X80 Obtido Por Processo TMCR

Impact behavior of hollow glass bubble reinforced foam core LNG insulation panel in cryogenic temperature

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