Hélio Wiebeck
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View article: Greener waterborne epoxy coatings with optimized UV-resistance
Greener waterborne epoxy coatings with optimized UV-resistance Open
The UV-resistance performance of waterborne epoxy coatings with different aminic-curable substances was evaluated to solve the widely known problem of poor weathering resistance of coatings. Samples were evaluated by color and gloss change…
View article: Effect of Virgin PP Substitution with Recycled Plastic Caps in the Manufacture of a Product for the Telephony Sector
Effect of Virgin PP Substitution with Recycled Plastic Caps in the Manufacture of a Product for the Telephony Sector Open
This study investigated the effects of partial and total substitutions of fossil polypropylene (PP) for recycled plastic cap equivalents in the manufacture of signage labels used by the telephone industry. Four alternative scenarios to usi…
View article: Study of mechanical properties of inner tubes exposed to gamma radiation
Study of mechanical properties of inner tubes exposed to gamma radiation Open
Due to the technical evolution of tires, currently most automotive tires do not have an inner tube. However, truck, motorcycle and bicycle tires still use tires with inner tubes, mostly made of synthetic elastomeric material, which guarant…
View article: Analysis of Selective Fluorescence for the Characterization of Microplastic Fibers: Use of a Nile Red-Based Analytical Method to Compare between Natural and Synthetic Fibers
Analysis of Selective Fluorescence for the Characterization of Microplastic Fibers: Use of a Nile Red-Based Analytical Method to Compare between Natural and Synthetic Fibers Open
View article: ATR-FTIR Spectroscopy Combined with Chemometric Methods for the Classification of Polyethylene Residues Containing Different Contaminants
ATR-FTIR Spectroscopy Combined with Chemometric Methods for the Classification of Polyethylene Residues Containing Different Contaminants Open
Low density polyethylene (LDPE) and high density polyethylene (HDPE) are the principal plastics present in solid plastic waste and are found out as the main components of microplastics in marine and terrestrial environments. Currently, eff…
View article: New Applications of Tire Powder Recycled by Micro-Waves
New Applications of Tire Powder Recycled by Micro-Waves Open
In order to minimize impacts caused to environment and to save natural resources, especially from non-renewable sources, recycling of polymeric materials has been object of study. In this scenery, are included elastomeric materials, such a…
View article: Preparation and Characterization of Polysulfone / Recam® Composite Membranes for Potable Water Production
Preparation and Characterization of Polysulfone / Recam® Composite Membranes for Potable Water Production Open
Polysulfone/ Recam® composite membranes were prepared via the wet-phase inversion method. The interactions between polysulfone and additive were revealed by Fourier-transformed infrared spectroscopy and atomic force microscopy. Material pr…
View article: Current options for characterizing, sorting, and recycling polymeric waste
Current options for characterizing, sorting, and recycling polymeric waste Open
Several researches and technologies on polymer recycling have been driven and justified by the uncontrolled and crescent polymer waste generation in the world. Herein, a critical and concise review on the recent and well-established recycl…
View article: Characterization of Gypsum Waste from Civil Construction to Obtain Polymer Composites
Characterization of Gypsum Waste from Civil Construction to Obtain Polymer Composites Open
This work aims to characterize the post-consumption plaster and compare it with virgin plaster. Burrs from plaster frames manufacturing were collected at the manufacturer. These samples were dried in a drying oven. Then, they were milled i…
View article: Influence of GRAFIM® content and the presence of silver nanoparticles on PSf composite membrane properties
Influence of GRAFIM® content and the presence of silver nanoparticles on PSf composite membrane properties Open
View article: Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication
Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication Open
High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions. The tribology of natura…
View article: Predicting LDPE/HDPE blend composition by CARS-PLS regression and confocal Raman spectroscopy
Predicting LDPE/HDPE blend composition by CARS-PLS regression and confocal Raman spectroscopy Open
Industries and the scientific community currently focus on creating new ways to recycle and to reuse polymer waste that leads to serious socio-environmental risks. However, the quality of recycled polyethylenes depends strongly on their pu…
View article: Predicting LDPE/HDPE blend composition by CARS-PLS regression and confocal Raman spectroscopy
Predicting LDPE/HDPE blend composition by CARS-PLS regression and confocal Raman spectroscopy Open
Industries and the scientific community currently focus on creating new ways to recycle and to reuse polymer waste that leads to serious socio-environmental risks. However, the quality of recycled polyethylenes depends strongly on their pu…
View article: Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication
Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication Open
High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions. The tribology of natura…
View article: Adsorvente a partir de fuligem de bagaço de cana-de-açucar: obtenção e avaliação de desempenho.
Adsorvente a partir de fuligem de bagaço de cana-de-açucar: obtenção e avaliação de desempenho. Open
\n O trabalho apresenta a fuligem proveniente de queima de bagaço de cana-de-açúcar como um adsorvente e como matéria-prima alternativa na produção de adsorvente descorante. Atualmente, todas as industrias açucareiras, várias refinarias de…
View article: Obtenção e caracterização, em laboratório, do carvão ativo de bagaço de cana, visando sua utilização no tratamento de água de lavagem de cana-de-açúcar.
Obtenção e caracterização, em laboratório, do carvão ativo de bagaço de cana, visando sua utilização no tratamento de água de lavagem de cana-de-açúcar. Open
\n As amostras de carvão ativo de bagaço de cana-de-açúcar foram preparadas em temperaturas de carbonização de 500, 600 e 700 ºC, com tempos de ativação de 60 e 120 minutos e concentração de agente ativante (ZnC12) 30 e 60% em relação ao b…
View article: Analysis of the Poly(Butylene Succinate-Co-Lactate)/ Montmorillonite-Kaolinite Nanocomposite in the Formation of Microcapsules
Analysis of the Poly(Butylene Succinate-Co-Lactate)/ Montmorillonite-Kaolinite Nanocomposite in the Formation of Microcapsules Open
A nanocomposite system comprised by a biodegradable polymer, poly(butylene succinate-co-lactate) (PBSL), and a Brazilian nanoclay (VMF1) containing montmorillonite (MMT) and kaolinite (K) is used to prepare microcapsules by solvent diffusi…
View article: Effect of surface finishing on friction and wear of Poly-Ether-Ether-Ketone (PEEK) under oil lubrication
Effect of surface finishing on friction and wear of Poly-Ether-Ether-Ketone (PEEK) under oil lubrication Open
The tribological properties of poly-ether-ether-ketone (PEEK) containing 30% of carbon fiber were studied in an oil-lubricated environment and different surface finishing of the metallic counterbody. Four different finishing processes, com…
View article: Behavior of adhesion forces of the aqueous-based polychloroprene adhesive magnetically conditioned
Behavior of adhesion forces of the aqueous-based polychloroprene adhesive magnetically conditioned Open
This research is an innovation proposal for magnetic conditioning of the aqueous-based polychloroprene contact adhesive with the purpose of increasing the adherence capacity between the adhesive and the substrate. Today, the aqueous-based …
View article: Front Matter
Front Matter Open
The prelims comprise: Half Title Title Copyright Table of Contents Preface Editors Session Chairs
View article: Melhoria das propriedades mecânicas em borracha natural com cargas orgânicas
Melhoria das propriedades mecânicas em borracha natural com cargas orgânicas Open
As argilas organofilicas quando adicionadas a matrizes poliméricas transformam o desempenho dos produtos compósitos resultantes. Foi preparada a matriz de borracha natural com diversas cargas, como: bentonita chocolate B modificada por sod…
View article: Caracterização de resinas epóxi para compósitos curadas através de irradiação de micro–ondas
Caracterização de resinas epóxi para compósitos curadas através de irradiação de micro–ondas Open
O presente trabalho trata da caracterização de resinas epóxi curadas por irradiação de micro-ondas, aplicadas na produção
\nde compósitos, através das técnicas de TGA, DSC e FTIR. Conjuntamente a estas técnicas foram avaliadas de forma
\ni…