Browsing by Subject "Foam"
Now showing items 1-20 of 25
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Cellular structure and mechanical properties of starch-based foamed blocks reinforced with natural fibers and produced by microwave heating
(2015-01-09)
Article
Restricted access - publisher's policyThe cellular structure and mechanical properties in compression of starch-based foams filled with natural reinforcements, such as grape wastes, cardoon wastes and barley straw fibers, have been studied in this work. The ... -
Creación y caracterización del aerogel más óptimo para aplicaciones de packaging mediante alginato, montmorillonita de sodio y ácido tánico
(Universitat Politècnica de Catalunya, 2015-01)
Master thesis (pre-Bologna period)
Open AccessEste proyecto trata de crear un aerogel biodegradable, mediante procesos amigables con el medio ambiente, que pueda sustituir a las contaminantes espumas poliméricas convencionales en aplicaciones de packaging. Se han ... -
Drug delivery from injectable calcium phosphate foams by tailoring the macroporosity-drug interaction
(2015-01-15)
Article
Open AccessIn this work, novel injectable calcium phosphate foams (CPFs) were combined with an antibiotic (doxycycline) to design an innovative dosage form for bone regeneration. The material structure, its drug release profile and ... -
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 ... -
Effects of graphene nanoplatelets and cellular structure on the thermal conductivity of polysulfone nanocomposite foams
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-01)
Article
Open AccessPolysulfone (PSU) foams containing 0–10 wt% graphene nanoplatelets (GnP) were prepared using two foaming methods. Alongside the analysis of the cellular structure, their thermal conductivity was measured and analyzed. The ... -
Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
(2018-09-19)
Article
Open AccessSignificant 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 ... -
Graphene polymer foams and sponges’ preparation and applications
(Elsevier, 2022-06-15)
Part of book or chapter of book
Restricted access - publisher's policyAmong graphene-based polymer composites, great interest has arisen in the past decade about combining the addition of graphene-based materials into different polymer-based matrices, more recently based on engineering and ... -
Heat transfer in polypropylene-based foams produced using different foaming processes
(Wiley, 2009-10)
Article
Restricted access - publisher's policyThis paper presents the characterization of the cellular structure and thermal conduction behaviour of polypropylene foams produced using different foaming processes, with the aim of selecting the best possible PP foam ... -
Heat Transfer of Mineral-Filled Polypropylene Foams
(Trans Tech Publications, 2010)
Article
Restricted access - publisher's policyThe thermal conductivity of unfilled polypropylene foams produced using different foaming processes has previously been demonstrated to be mainly affected by the foam’s bulk density [1]. The influence of adding inorganic ... -
Implementation and validation of an optical measurement method for evaluation of foaming systems
(Universitat Politècnica de Catalunya, 2022-09-19)
Bachelor thesis
Open Access
Covenantee: Technische Universität KaiserslauternFoaming is undesirable in many industrial processes as it is difficult to regulate and frequently results in the entire operation being stopped for safety reasons. Therefore, it must be possible to determine and control ... -
Micro-raman analysis of the molecular orientation of flexible polyolefin foams
(2009)
Conference lecture
Open Access -
Microstructure anisotropy in polyolefin flexible foams
(IOP Publishing Ltd., 2009-11)
Article
Open AccessThe use of polyolefin flexible foams with typical thicknesses between 1 and 3 mm produced by a physical foaming extrusion process is nowadays quite widespread in the packaging sector. Their high flexibility and closed-cell ... -
Morphology and mechanical characterization of ABS foamed by microcellular injection moulding
(2015)
Conference report
Restricted access - publisher's policyIn the present work ABS was used to inject cylindrical test bars, obtaining solid and foamed especimens. By varying the gas content, two levels of weight reduction were achieved. Morphology analysis revealed the presence ... -
Moulded polypropylene foams produced using chemical or physical blowing agents: structure–properties relationship
(2012)
Article
Restricted access - publisher's policyPolypropylene (PP) foams have become essential items due to their excellent properties. Nevertheless, obtaining net-shaped PP foams with medium relative densities is a complicated issue. In this article, two processes ... -
Polyurethane foams from renewable and sustainable polyols
(Universitat Politècnica de Catalunya / Universidade Técnica de Lisboa, 2013)
Bachelor thesis
Restricted access - author's decision
Covenantee: Universidade de LisboaThe aim of this thesis is the production of polyurethane foams with polyols from liquefied wood. The objective is to find the best combination of appropriate properties to polyurethane foams with maximum content of polyols ... -
Preparación y caracterización de probetas microespumadas mediante moldeo por inyección MuCell® de polipropileno cargado con fibras de vidrio
(Universitat Politècnica de Catalunya, 2015-06)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEste proyecto de final de carrera se enmarca en un estudio más amplio que tiene por objetivo la reducción de peso de componentes de automoción para disminuir las emisiones de los vehículos. En este PFC se preparan y ... -
Preparation and characterization of cellulosic fibre-reinforced polypropylene foams
(Trans Tech Publications, 2010)
Article
Restricted access - publisher's policyThe preparation and characterization of cellulosic fibre-reinforced polypropylene composite foams is presented. The cellulose fibres were isolated from a barley straw obtained from local sources. They were compounded with ... -
Preparation of nanocomposite foams based on polysulfone and carbon-based nanoparticles using WVIPS
(2018)
Conference lecture
Open Access -
Simulation of ejector for vacuum generation
(Institute of Physics (IOP), 2019-10-31)
Article
Open AccessSupersonic ejectors are used in a wide range of applications such as compression of refrigerants in cooling systems, pumping of volatile fluids, or vacuum generation. The objective of the present paper is to mesh and ... -
Study and definition of a sustainable industrial recovery plant: mattress waste recovery plant
(Universitat Politècnica de Catalunya, 2020-07-28)
Bachelor thesis
Open AccessAn environmental challenge with mattress is more than extended worldwide. Generally speaking, mattresses are bulky, difficult to transport, and manufactured by complex processes. At the end, they are built to provide us ...
