Browsing NTNU Open by Author "Grammatikos, Sotirios"
Now showing items 1-17 of 17
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Comparative Life Cycle Assessment of Cotton and Other Natural Fibers for Textile Applications
La Rosa, Angela Daniela; Grammatikos, Sotirios (Journal article; Peer reviewed, 2019)Among natural fibers, such as cotton, silk, wool, flax, hemp, etc., cotton is the one that takes up the highest percentage in the textile market. Nevertheless, there are obstacles associated with its cultivation; it is ... -
Electromagnetic shielding for buildings using hybrid polymer composites: a life cycle assessment study.
La Rosa, Angela Daniela; Grammatikos, Sotirios; Ciobanu, Romeo C.; Schreiner, Cristina M. (Peer reviewed; Journal article, 2020)In the present paper, we investigated a sandwich composite as a potential electromagnetic interference shielding wall panel for buildings. The panel was built using a ferrite-particle modified high density polyethylene in ... -
Fused deposition modeling-based additive manufacturing (3D printing): techniques for polymer material systems
Daminabo, Samuel C.; Goel, Saurav; Grammatikos, Sotirios; Nezhad, Hamed Yazdani; Thakur, Vijay Kumar (Peer reviewed; Journal article, 2020)While the developments of additive manufacturing (AM) techniques have been remarkable thus far, they are still significantly limited by the range of printable, functional material systems that meet the requirements of a ... -
Interesting Remarks on the Comparison of Organomodified Nanomontmorillonites in Fibre-Cement Nanohybrids
Papatzani, Styliani; Grammatikos, Sotirios; Paine, Kevin (Peer reviewed; Journal article, 2020)This paper presents the effects of the addition of (i) the organomodified nanomontmorillonite (nMt) dispersion, nC2, produced for the scope of the FP7 project name FIBCEM and of (ii) the powder, undispersed organomodified ... -
Investigation of flax fibre in cross country ski structure
Gavric, Zoran; Leistad, Vegard (Bachelor thesis, 2020)Hvordan lage bærekraftige ski? Nedbrytbar biobasert epoxy, PMMA og petroleumsbasert epoxy ble testet med linfiber for å se om dette kunne erstatte dagens glassfiberarmerte petroleumsbasert epoxy i skiproduksjon hos Madshus. ... -
Is Hygrothermal Aging of Construction Polymer Composites a Reversible Process?
Grammatikos, Sotirios; Papatzani, Styliani; Evernden, Mark (Peer reviewed; Journal article, 2020)This paper presents the effects of wet/dry cycling loading on the moisture uptake behavior of a Fibre Reinforced Polymer (FRP) composite used in the civil engineering sector. FRP samples of various dimensions were cut from ... -
Materialegenskaper til plastmateriale for bruk i additiv formproduksjon - Undersøkelse av mekaniske og geometriske egenskaper til High Temp V2 resin
Wedding, Andreas; Hagen, Alexander Enger Wright (Bachelor thesis, 2020)Innledning: Oppgaven er en del av BIA-prosjektet «Rapid Tooling 4.0», hvor målet er å korte ned ledetiden og kostnaden ved additiv tilvirkning av sprøytestøpeformer. Materialet som skal benyttes må ha høy styrke og gode ... -
Nano-enabled polymers as embedded sensing electrodes in fibre-reinforced polymer composites
Dahl, Morten M.; Brøndbo, Vegar S. (Bachelor thesis, 2019)Polyuretan ble kombinert med nanoadditivene grafitt og karbon nanorør for å skape en elektrisk ledende elastomer, som videre ble implementert i en epoxy-karbonfiber kompositt for å gjøre bruken av karbonfiber-kompositter ... -
On the Mechanical Recycling of Decommisioned Insulation Polymer Composite Components
Grammatikos, Sotirios; Tsampas, Spyros; Papatzani, Styliani; Luping, Tang; Löfgren, Ingemar; Petterson, Jocke (Peer reviewed; Journal article, 2020)Fibre reinforced polymer composites (FRPs) are being increasingly used in aerospace and automotive applications due to their high specific mechanical properties. The construction industry has ... -
On the use of carbon nanotubes to develop durable structural electrodes for self-sensing applications
Grammatikos, Sotirios; Dahl, Morten Melby; Brøndbo, Vegar Salin; La Rosa, Angela Daniela (Peer reviewed; Journal article, 2020)This paper reports an experimental investigation on embedded polyurethane (PUR) electrodes into a carbon fibre reinforced polymer (CFRP) composite to enable the dependable use of composites as a piezoresistive sensors, ... -
Permeable nanomontmorillonite and fibre reinforced cementitious binders
Papatzani, S.; Grammatikos, Sotirios; Paine, K. (Journal article; Peer reviewed, 2019)Clinker reduction in cementitious binders is of paramount importance today, and nanotechnology has extended permissible limits. In the present study, a reference binder consisting of 60% Portland cement, 20% limestone, 20% ... -
Physicochemical characterisation of bio-based insulation to explain their hygrothermal behaviour
Romano, Abbie; Grammatikos, Sotirios; Riley, Mike; Bras, Ana (Peer reviewed; Journal article, 2020)The utilisation of bio-based building materials as hygric buffers has received recent research interest due to their moisture sorption and thermal behaviours which are positive for indoor comfort. Their hygrothermal ... -
Prediction Models for Thermal Conductivity of Cement-based Composites
Hajmohammadian Baghban, Mohammad; Kioumarsi, Mahdi; Grammatikos, Sotirios (Journal article; Peer reviewed, 2018)This paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts ... -
Pumpesump med integrert forankring
Josefsen, Henning; Pettersen, Liss-Anne N.; Skinlo, Marius Eilertsen (Bachelor thesis, 2019)Avløpspumpestasjoner brukes for å transportere avløps- og spillvann fra husholdninger, industri og annen virksomhet til avløpsrenseanlegg. Her blir avløpsvannet renset før vannet slippes tilbake til naturen. Pumpesumpen, ... -
Recovery of electronic wastes as fillers for electromagnetic shielding in building components: An LCA study
La Rosa, Angela Daniela; Grammatikos, Sotirios; Ursan, George Andrei; Aradoaei, Sebastian; Summerscales, John; Ciobanu, Romeo Cristian; ; Schreiner, Cristina Mihaela (Peer reviewed; Journal article, 2020)The present study reports the development of sandwich panels for building walls having electromagnetic interference (EMI) shielding abilities. Conductive polymer composites (CPCs) have started being employed as EMI shielding ... -
Recycled Wood Plastic Composites as Floor Panels for Ship Containers
Grammatikos, Sotirios; Jøsendal, Harald Bertin; Papatzani, Styliani; Boura, Orsa; Hajmohammadian Baghban, Mohammad (Peer reviewed; Journal article, 2020)Within the framework of this study, we aim at the replacement of plywood as ship containers floor material, with a lighter and friendlier-to-rainforests composite material. Wood fibre-reinforced thermoPlastic Composites ... -
Utvikling av subsea støttekonstruksjon i polyuretan
Nielsen, Anders; Dokke, Gina; Jogerud, Antony (Bachelor thesis, 2019)EAB Engineering AS er produsent av blindflenser som benyttes til forsegling av sammenkoblingspunkter i undervannsinstallasjoner, eller som andre barriere for å hindre lekkasje av hydrokarboner i omgivelsene. Blindflensen ...