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Desenvolvimento de resina epóxi a partir de resíduo agroindustrial para aplicaç...
Silva, Lucas Renan Rocha daEpoxy resins are a class of very versatile prepolymers that combined with crosslinking agents produce thermosetting polymers with outstanding properties that allow their use in several segments, such as adhesives, composites, building materials, insulation components and especially in coatings. The search for new ways to obtain these resins has been increasing, mainly by using bio-based sources in order to mini...
Fraude no leite: experimento investigativo para o ensino de química.
Silva, Lucas Renan Rocha daChemistry is a science that uses a different language, with symbols and equations that are not yet part of the students' vocabulary, and therefore requires attention. The contents are considered less attractive, making them do not understand the phenomena effectively and cannot associate them with their daily life, leading to demotivation and rejection of the study, hindering the teaching-learning process. The ...
Synthesis and characterization of a newmethacrylate monomer derived from the ca...
Moreira, Madiana Magalhães; Silva, Lucas Renan Rocha da; Mendes, T alita Arrais Daniel; Santiago, Sérgio Lima; Mazzetto, Selma ElaineObjective. The aim of this study was to synthesize, to characterize and to evaluate the effectson tubular occlusion of new monomer derived from cashew nut shell liquid (CNSL), alsostudying the effects of acid challenge (AC) on dentin surfaces treated with desensitizers.Methods. The intermediary cardanol-epoxy (CNE) was synthesized through epoxidation ofCNSL, followed by synthesis of cardanol-methacrylate-epoxy ...