Selaus nimekkeen mukaan kokoelmassa 2 Tekniikka
Viitteet 38-57 / 135
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Features of a Ziegler-Natta catalyst prepared with the Sirius emulsion-based catalyst production technology
(Åbo Akademi - Åbo Akademi University, 14.06.2013)- -
Fibre surface engineering using polysaccharide derivatives
(Åbo Akademi - Åbo Akademi University, 12.12.2017)In the search for new materials and innovative solutions, pulp fibres obtained from wood chips have gained attention during the last few decades because they can be converted into a wide variety of pulp-derived products. ... -
Flexible pigment-cellulose nanofibril composites for printed electronics applications
(VTT Technical Research Centre of Finland Ltd, 27.10.2017)The aim of this work was to expand the possibilities of novel use of cellulose micro- and nanofibrils (CMNF) for bio-based composites. The new approach in this work was to combine inorganic pigments and CMNF in a relatively ... -
Formic acid fractionation of bamboo and valorization of isolated lignin
(Åbo Akademi - Åbo Akademi University, 14.02.2020)Lignocellulosic biomass is the most abundant and renewable natural resource on earth. It has been regarded as an environmentally sustainable raw material to be converted into chemicals and biomaterials. To profitably use ... -
Fractionation of marine algae to its constituents towards valuable chemicals and energy products
(Åbo Akademi - Åbo Akademi University, 20.11.2017)There is an urgency for finding renewable resources for the replacement of fossil resources aiming at more environmentally friendly processing. The old concept of processing forestry biomass for pulp and paper that dominated ... -
Functional cellulose microspheres for pharmaceutical applications
(Åbo Akademi - Åbo Akademi University, 13.02.2015)Dissolving cellulose is the first main step in preparing novel cellulosicmaterials. Since cellulosic fibres cannot be easily dissolved in water-based solvents, fibres were pretreated with ethanol-acid solution prior to the ... -
Functionalisation of spruce O-acetyl-galactoglucomannans for barrier and composite applications
(Åbo Akademi - Åbo Akademi University, 23.10.2015)The increasing use of energy, food, and materials by the growing population in the world is leading to the situation where alternative solutions from renewable carbon resources are sought after. The growing use of plastics ... -
Functionalization of cellulosic fibers via adsorption of native and light-responsive polysaccharides
(Åbo Akademi - Åbo Akademi University, 17.01.2018)Pulp fibers are widely used in different types of everyday products. Even though the demand for newspaper and printing paper is declining, there is a clear growth in the consumption of such fiber-based products as specialty ... -
Heterogeneous catalytic copolymerization reactions of carbon dioxide and propylene oxide over polyalcohols under subcritical conditions
(Åbo Akademi University and Universidad de Valladolid, Spain, 15.03.2017)Carbon dioxide (CO2) is one of the main gases which cause the greenhouse effect. As a way to attenuate this damage, CO2 could be used as a building block for copolymerization reactions; precisely as C1 feedstock (monomer ... -
Hybridization of pulp fibres with LDH for applications in composites and lightweight fibrous foam
(Åbo Akademi - Åbo Akademi University, 11.08.2017)The research around the pulp and paper (P&P) sector has changed dramatically during the past 15 years. P&P industry is particularly keen to find new solutions for the raw-materials they provide as well as explore novel ... -
Hydrogenation of L-arabinose, D-galactose, D-maltose and L-rhamnose
(Åbo Akademi - Åbo Akademi University, 04.05.2012) -
Hydrotropic process for green biorefinery applications
(Åbo Akademi - Åbo Akademi University, 19.01.2018)Biorefinery is a concept of sustainable biomass processing into several useful products, such as fuels, materials, power and chemicals. The necessity of more extensive biomass utilization is governed nowadays by the ... -
Improvement of wet and dry web properties in papermaking by controlling water and fiber quality
(Åbo Akademi - Åbo Akademi University, 08.11.2013) -
Improving the competitiveness of electrolytic Zinc process by chemical reaction engineering approach
(Åbo Akademi - Åbo Akademi University, 18.02.2014)This doctoral thesis describes the development work performed on the leachand purification sections in the electrolytic zinc plant in Kokkola to increase the efficiency in these two stages, and thus the competitiveness of ... -
Influence of plasma modification on surface properties and offset printability of coated paper
(Åbo Akademi - Åbo Akademi University, 11.06.2010)The properties of the paper surface play a crucial role in ensuring suitable quality and runnability in various converting and finishing operations, such as printing. Plasma surface modification makes it possible to modify ... -
Influence of surface functionalization on the behavior of silica nanoparticles in biological systems
(Åbo Akademi - Åbo Akademi University, 03.10.2014)Personalized nanomedicine has been shown to provide advantages over traditional clinical imaging, diagnosis, and conventional medical treatment. Using nanoparticles can enhance and clarify the clinical targeting and imaging, ... -
Initial Stages of Alkali Salt Induced High Temperature Corrosion Mechanisms : Experimental studies using a combination of chronoamperometry, scanning electron microscopy, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry
(Åbo Akademi - Åbo Akademi University, 24.05.2019)Various environmental problems, such as global warming, are related to the extensive use of fossil fuels. To solve these environmental problems, several renewable energy resources (RES) to substitute fossil fuels have drawn ... -
Input designs for identification of Ill-conditioned multivariable systems
(Åbo Akademi - Åbo Akademi University, 28.10.2016)Identification of an industrial system is generally a costly and complex process. Making an identification procedure efficient enough is an ongoing demand. Typically, designing the excitation for ill-conditioned and ... -
Intensification of hemicellulose hot-water extraction from spruce wood by parameter tuning
(Åbo Akademi - Åbo Akademi University, 22.05.2015)The growing population on earth along with diminishing fossil deposits and the climate change debate calls out for a better utilization of renewable, bio-based materials. In a biorefinery perspective, the renewable biomass ... -
Introduktionen av kärnkraften i Finland
(Åbo Akademis förlag - Åbo Akademi University Press, 14.08.2009)
