Search for dissertations about: "Wood And Bionanocomposites."
Showing result 11 - 15 of 27 swedish dissertations containing the words Wood And Bionanocomposites..
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11. Processing and Properties of Nanostructured Biocomposites
Abstract : In this work, nanostructured biocomposite fibers and films with cellulose nanofibers (CNF), cellulose nanocrystals (CNC) and chitin nanocrystals (ChNC) were prepared using solutions mixing followed by electrospinning and melt compounding. The main processing challenges for these materials were to find parameters for: 1) fiber alignment in electrospinning, 2) feeding the nanomaterials into the extruder and 3) dispersion and distribution of the nanomaterials in the polymeric matrix. READ MORE
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12. Reactive extrusion of wood-thermoplastic composites
Abstract : The interest in Wood-thermoplastic composites (WPCs) has increased during the last decades. WPCs are commonly used as building material for decking and railing because of its low need of maintenance. Wood is a renewable resource of good mechanical properties and this make wood fibers interesting to use as reinforcement in a thermoplastic composite. READ MORE
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13. Preparation and characterization of nanocellulose films and coatings from industrial bio-residues
Abstract : The aim of this work has been to study cellulose nanocrystals (CNC) from bio-residues and their use as green coating materials. In the first part of this work, physical and chemical properties of different types of cellulose nanocrystals, from different raw material sources and different treatments were compared. READ MORE
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14. Process and properties of continuous fibers based on cellulose nanocrystals and nanofibers
Abstract : In recent years, composites made from natural fibers based on cellulose have received increasing attention since they have a low environmental impact and good mechanical properties. However, these fibers are short and discontinuous and the conventional spinning techniques used for these fibers results in continuous yarns with mechanical properties considerably lower than that of the single fibers. READ MORE
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15. Improving properties of poly(lactic acid) biopolymer for use in food packaging
Abstract : The petroleum-based plastics are widely used for food packaging applications because of their low cost, easy processability, and tunable properties to meet the specific needs of food packaging. However, these polymers are non-biodegradable, leading to a substantial amount of plastic waste in both land and marine ecosystems. READ MORE