Avaliação de Entalhes no Fluoreto de Polivinilideno (PVDF) Aplicado em Linhas Flexíveis

Pereira, Ingrid Cristina Soares; Neto, Celio Albano Da Costa; Sousa, José Renato Mende De

doi:10.17648/pdpetro-2022-159281

Cited by 2 publications

(2 citation statements)

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“…De acordo com Gumtz e Meloy apud Pereira et al (2004) relataram sobre a utilização de Poliuretano do tipo éster (reutilizada e reticulada) como sorvente de petróleo em derramamento em sistemas aquáticos, onde foram combinados, a analise dimensional, modelagem matemática e dados experimentais para otimização das taxas de sorção de petróleo, através de ajuste de parâmetros do modelo, como viscosidade, seleção de diferentes espumas e diferentes geometrias, além disso, os trabalhos mostraram que flocos com forma de paralelepípedo retangular (½ x ½ x ½) foram mais eficientes no tempo de saturação, sendo encontrada uma relação de dependência inversa ao perímetro molhado (encharcado), e que este tempo não é diretamente proporcional ao volume de partículas de sorventes empregadas, onde a maior área de contato é responsável pela maior sorção.…”

Section: Sorção E Retenção De óLeo Com Puunclassified

Nanocomposites with polyurethane polymer matrix/ particulate material

Dias Neves

2024

ISJM

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The environment is currently considered one of the main concerns of the industrial sector and society. In the particular case of the oil industry, one of the biggest environmental catastrophes that can happen are large oil spills, where to reduce or minimize the environmental damage caused, various cleaning methods are used. Thus, nanocomposites aim to change the mechanical, physical and chemical properties of polymer matrices. The main focus of modifying Polyurethanes has been directed to materials science, the objective of which is to obtain particulate materials, allowing surfaces to be differentiated, reducing surface energy and increasing interlayer spacing for polymer intercalation. This particulate material, produced and modified, interspersed with the Polymer, allows us to absorb crude oil, as it is hydrophobic and, consequently, organophilic. The factors that define the degree of sorption of organic compounds are: hydrophobicity, porosity, molecular structure and volume, and the volume of the surface area of the sorbent material. Therefore, the sorbent must be wettable by the hydrophobic compound and non-wettable or slightly wettable by water. Sorbent materials must have characteristics such as a large surface area, high porosity, good oleophilic character, as well as good oil retention capacity and ease of application. Polyurethane presents several of these characteristics, making it an interesting sorbent for the oil sector. The present work studies the obtaining of these nanocomposites, using a particulate material to combat leaks or spills of hydrocarbons.

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Section: Sorção E Retenção De óLeo Com Puunclassified

Nanocomposites with polyurethane polymer matrix/ particulate material

Dias Neves

2024

ISJM

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“…Assim, o teor de segmentos flexíveis e rígidos influencia diretamente nas propriedades físicas, mecânicas e adesivas do material. Os segmentos rígidos conferem propriedades como dureza, resistência mecânica e tenacidade ao produto, enquanto os segmentos flexíveis contribuem no alongamento do material (CANGEMI; SANTOS; CLARO NETO, 2009;VERONESE, 2009;PEREIRA et al, 2004).…”

Section: Nanocompósitos Poliméricosunclassified

Nanocomposites with polyurethane/particulate material polymer matrix

Neves

2024

I Seven International Engineering Congress

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The environment is currently considered one of the main concerns of the industrial sector and society. In the particular case of the oil industry, one of the biggest environmental catastrophes that can happen are large oil spills, where to reduce or minimize the environmental damage caused, various cleaning methods are used. Thus, nanocomposites aim to change the mechanical, physical and chemical properties of polymer matrices. The main focus of modifying Polyurethanes has been directed to materials science, the objective of which is to obtain particulate materials, allowing surfaces to be differentiated, reducing surface energy and increasing interlayer spacing for polymer intercalation. This particulate material, produced and modified, interspersed with the Polymer, allows us to absorb crude oil, as it is hydrophobic and, consequently, organophilic. The factors that define the degree of sorption of organic compounds are: hydrophobicity, porosity, molecular structure and volume, and the volume of the surface area of the sorbent material. Therefore, the sorbent must be wettable by the hydrophobic compound and not wettable or slightly wettable by water. Sorbent materials must have characteristics such as a large surface area, high porosity, good oleophilic character, as well as good oil retention capacity and ease of application. Polyurethane presents several of these characteristics, making it an interesting sorbent for the oil sector. The present work studies the obtaining of these nanocomposites, using a particulate material to combat leaks or spills of hydrocarbons.

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Avaliação de Entalhes no Fluoreto de Polivinilideno (PVDF) Aplicado em Linhas Flexíveis

Cited by 2 publications

References 0 publications

Nanocomposites with polyurethane polymer matrix/ particulate material

Nanocomposites with polyurethane polymer matrix/ particulate material

Nanocomposites with polyurethane/particulate material polymer matrix

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