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Studies on the mouldability of structural foams in hybrid moulds
Nogueira, A. A.; Martinho, P. G.; Brito, A. M.; Pouzada, A. S.; Gago, P. T.In the context of the research project Hybridmould 21, studies on the mouldability of structural foams using hybrid moulds have been carried out. Hybrid injection moulds are an increasingly considered alternative for prototype series or short production runs of large dimension parts. In this solution for injection moulds the moulding elements (blocks or other inserts) are manufactured in alternative metallic ma...
Semi-automatic laboratory equipment for reactive injection molding
Pouzada, A. S.; Brito, A. M.; Oliveira, F. M.; Dencheva, Nadya Vasileva; Denchev, Z.; Lanceros-Méndez, S.Traditional melt processing techniques limit in shape and thickness the parts of fiber-reinforced thermoplastic composites. Producing of thermoplastic hybrid composites through melt intercalation often results in heterogeneous products due to micron-scale agglomerations with a negative effect on the mechanical properties. The in-situ polymerization processes to form the matrix in polymer composites have proved ...
Perfil sanitário e fisiológico de sementes de arroz provenientes de ensaios de ...
LOBO, V. L. da S.; FILIPPI, M. C. de; UTUMI, M. M.; MORAIS, O. P. de; CASTRO, E. da M. de; BRITO, A. M. de.Foi feito um estudo com o objetivo de avaliar a qualidade sanitária e fisiológica das sementes de arroz provenientes de ensaios de valor de cultivo e uso (VCU) conduzidos em Goiás, Mato Grosso e Rondônia. ; 2006
Isothermal and Non-Isothermal Consolidation of Carbon Fiber Towpregs
Nunes, J. P.; Brito, A. M.; Pouzada, A. S.; Bernardo, C. A.The purpose of this work is to establish and validate a model to predict the isothermal and non-isothermal consolidation behavior of unidirectional towpregs, made of carbon fibers and a thermoplastic polymer. A Finite Difference Method program was devised based on a set of analytical expressions developed in a previous work. The program allows the determination of pressure-displacement curves at constant press ...
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