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Recent Submissions
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Polymeric Foams
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-12)
Article
Open Access -
Influence of chemical composition of Brazilian organoclays on the morphological, structural and thermal properties of PLA-organoclay nanocomposites
(2019-07-17)
Article
Restricted access - publisher's policyThe effects of adding different Brazilian organoclays, containing di-(hydrogenated tallow) dimethyl ammonium chloride (HTA), trihexyl tetradecyl phosphonium chloride (TDP), di(alkyl ester) dimethyl ammonium chloride (EA) ... -
Recent advances in carbon-based polymer nanocomposites for electromagnetic interference shielding
(2019-06)
Article
Restricted access - publisher's policyCarbon-based nanoparticles have recently generated a great attention, as they could create polymer nanocomposites with enhanced transport properties, overcoming some limitations of electrically-conductive polymers for high ... -
Polyetherimide foams filled with low content of graphene nanoplatelets prepared by scCO2 dissolution
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-13)
Article
Open AccessPolyetherimide (PEI) foams with graphene nanoplatelets (GnP) were prepared by supercritical carbon dioxide (scCO2) dissolution. Foam precursors were prepared by melt-mixing PEI with variable amounts of ultrasonicated GnP ... -
Effects of a phosphorus flame retardant system on the mechanical and fire behavior of microcellular ABS
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-26)
Article
Open AccessThe presentwork dealswith the study of phosphorus flame retardantmicrocellular acrylonitrile– butadiene–styrene (ABS) parts and the effects of weight reduction on the fire and mechanical performance. Phosphorus-based flame ... -
Corn starch and gelatin-based films added with guabiroba pulp for application in food packaging
(Elsevier Ltd, 2019-03-01)
Article
Restricted access - publisher's policyThe guabiroba pulp (GP) has natural antioxidant compounds, such as phenolic compounds and ascorbic acid. The aim of this work was to produce an active biodegradable film based on blends of gelatin (GEL) and corn starch ... -
Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
(2018-09-19)
Article
Restricted access - publisher's policySignificant improvement in electrical conductivity of graphene nanoplatelets-filled polyetherimide (PEI) foams was achieved by simultaneously increasing the porosity and graphene nanoplatelets dispersion. Foams were prepared ... -
Flame retardancy effect of combined ammonium polyphosphate and aluminium diethyl phosphinate in acrylonitrile-butadiene-styrene
(2018-07-23)
Article
Restricted access - publisher's policyThe present work investigates the fire retardancy mechanisms of ammonium polyphosphate (APP) and aluminium diethyl phosphinate salt (AlPi) in an acrylonitrile-butadiene-styrene copolymer (ABS) by analysing the pyrolysis, ... -
Porous membranes based on polypropylene-ethylene copolymers. Influence of temperature on extrusion, annealing and uniaxial strain stages
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-08-02)
Article
Open AccessIn this study, block and random copolymers of polypropylene–ethylene are selected to prepare porous membranes through the melt extrusion-annealing-uniaxial stretching technique (MEAUS), at a constant draw ratio. In some ... -
The fracture testing of ductile polymer films: Effect of the specimen notching
(Elsevier, 2017-10-01)
Article
Restricted access - publisher's policyThe fracture of a ductile polymer film, a heterophase ethylene-propylene block copolymer, has been studied, combining a range of characterisation methods in an attempt to provide a better understanding of the intricate ... -
Effects of carbon nanotubes/graphene nanoplatelets hybrid systems on the structure and properties of polyetherimide-based foams
(2018-03-21)
Article
Open AccessFoams based on polyetherimide (PEI) with carbon nanotubes (CNT) and PEI with graphene nanoplatelets (GnP) combined with CNT were prepared by water vapor induced phase separation. Prior to foaming, variable amounts of only ... -
Influence of injection molding parameters on the morphology, mechanical and surface properties of ABS foams
(2018-01-24)
Article
Open AccessIn this work, microcellular ABS foams were studied. A series of injection molding samples defined by a design of experiments was carried out to analyze the effect of shot volume, mold temperature, and injection velocity ...
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