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Browsing Materials Research by Title

Now showing items 1-10 of 10

Biodegradation study of a novel poly-caprolactone-coffee husk composite film

Borghesi, Daiana Cristina; Molina, Maíra Fernanda; Guerra, Marcos Antônio; Campos, Maria Gabriela Nogueira (ABM, ABC, ABPol, 2016)

Plastic disposal is a worldwide issue due to its long degradation time. Environmentally degradable polymers (EDPs) have received considerable attention because of their faster degradation. However, the use of EDPs is limited ...
Ecotoxicological Effects of Biochar Obtained from Spent Coffee Grounds

Souza, Lorrana Zélia Martins de; Pinto, Bruna Cristina; Alves, Adriana Barboza; Ribeiro, Amanda Vanessa de Oliveira; Feliciano, Débora Cristina Teodoro; Silva, Luisa Heringer da; Dias, Thiago Tales Moraes; Yılmaz, Murat; Oliveira, Magno André de; Bezerra, Augusto Cesar da Silva; Ferreira, Osania Emerenciano; Lima, Robson Pereira de; Pimenta, Lúcia Pinheiro do Santos; Machado, Alan Rodrigues Teixeira (ABM, ABC, ABPol, 2022-11-21)

The objective of this work is to investigate the conversion of spent coffee grounds (SCG) into biochar (BSC) and the ecotoxicological effects of the product obtained. The SCG and BSC were characterized by characterized by ...
Evaluation of aqueous coffee husks extracts as a corrosion inhibitor of 1020 carbon steel in 1 mol L-1 HCl solution

Ramos, Samantha Alcântara Fernandes; Senna, Lilian Ferreira de; Lago, Dalva Cristina Baptista do (ABM, ABC, ABPol, 2019)

Corrosive processes in acidic medium reduce the performance and durability of metallic materials, causing problems to several industries. Corrosion inhibitors are commonly used to decrease these effects. As these inhibitors ...
Kinetic study of a bacterial cellulose production by Komagataeibacter rhaeticus using coffee grounds and sugarcane molasses

Souza, Karina Carvalho de; Trindade, Nicolas Mattos; Amorim, Júlia Didier Pedrosa de; Nascimento, Helenise Almeida do; Costa, Andréa Fernanda Santana; Henrique, Mariana Alves; Caetano, Viviane Fonseca; Sarubbo, Leonie Asfora; Vinhas, Glória Maria (ABM, ABC, ABPol, 2021)

Biotechnology can be used to convert waste into valuable products. In this context, there is bacterial cellulose (BC), a natural biopolymer that can be transformed into several useful materials, but its production is limited ...
Optimization of espresso spent ground coffee waste extract preparation and the influence of its chemical composition as an eco-friendly corrosion inhibitor for carbon steel in acid medium

Costa, Marina A. J. L. da; Gois, Jefferson S. de; Toaldo, Isabela M.; Bauerfeldt, Ana Clara Favilla; Batista, Diego B.; Bordignon-Luiz, Marilde T.; Lago, Dalva C. B. do; Luna, Aderval S.; Senna, Lilian F. de (ABM, ABC, ABPol, 2020)

This work proposes the reuse of spent ground coffee waste (SCG) extracts as eco-friendly corrosion inhibitors for carbon steel in acid medium, and the correlation between their anticorrosive efficiency and chemical ...
Particles of coffee wastes as reinforcement in polyhydroxybutyrate (PHB) based composites

Reis, Kelen Cristina; Pereira, Lucinéia; Melo, Isabel Cristina Nogueira Alves; Marconcini, José Manoel; Trugilho, Paulo Fernando; Tonoli, Gustavo Henrique Denzin (ABM, ABC, ABPol, 2015)

The objective of the present study was to evaluate lignocellulosic particles from sub-products of the coffee industry (coffee parchment - CP and husk - CH) into polyhydroxybutyrate (PHB) as a promising reinforcing filler ...
Roasted coffee extracts as corrosion inhibitors for mild steel in HCl solution

Souza, Elaine Cesar do Carmo Assumpção de; Ripper, Beatriz de Andrade; Perrone, Daniel; D’Elia, Eliane (ABM, ABC, ABPol, 2016)

The behavior of roasted coffee extract and its isolated high molecular weight fraction have been investigated as carbon steel corrosion inhibitors in HCl solution by weight loss measurements, potentiodynamic polarization ...
Study of coffee grounds oil action in PVC matrix exposed to gamma radiation: comparison of systems in film and specimen forms

Silva, Lindomar Avelino da; Almeida, Tainá Medeiros Bastos de; Teixeira, Rebeca Valgueiro; Araújo, Elmo Silvano de; Aquino, Kátia Aparecida da Silva (ABM, ABC, ABPol, 2017)

The poly (vinyl chloride), PVC, undergoes changes in its physicochemical properties when it is exposed to gamma radiation. Thus, the radiolytic stabilization of PVC is one way for obtain a material with radiation resistance. ...
Thermomechanical properties of corn starch based film reinforced with coffee ground waste as renewable resource

Gazonato, Elisa Camarin; Maia, Amanda Alves Domingos; Moris, Virgínia Aparecida da Silva; Paiva, Jane Maria Faulstich de (ABM, ABC, ABPol, 2019)

Starches polymeric films offer several advantages for the replacement of synthetic polymers due to their biodegradability, non-toxicity, availability and low cost. However, the high biodegradation potential can cause ...
Viabilidade econômica da cafeicultura da agricultura familiar na Zona da Mata de Minas Gerais

Teixeira, Sonia Milagres; Caixeta, Gloria Zelia Teixeira; Donzele, Sergio Mauricio Lopes (Sociedade Brasileira de Economia, Administracao e Sociologia Rural (SOBER), 2008-07)

O projeto verificou a viabilidade econômica da cafeicultura de agricultores familiares com vistas à inserção no mercado de cafés certificados. Focou sistemas de produção da cafeicultura da agricultura familiar de propriedades ...