Search for dissertations about: "Papermaking"
Showing result 21 - 25 of 67 swedish dissertations containing the word Papermaking.
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21. Nanofiber networks, aerogels and biocomposites based on nanofibrillated cellulose from wood
Abstract : Nanofibrillated cellulose (NFC) from wood is an interesting material constituent of high strength and high aspect ratio, which easily forms networks through interfibril secondary bonding including hydrogen bonds. This has been exploited in preparation of new materials, which extend the range of properties for existing cellulosic materials. READ MORE
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22. An experimental study of fiber suspensions between counter-rotating discs
Abstract : The behavior of fibers suspended in a flow between two counter-rotating discs has been studied experimentally. This is inspired by the refining process in the papermaking process where cellulose fibers are ground between discs in order to change performance in the papermaking process and/or qualities of the final paper product. READ MORE
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23. Velocity measurements in a fiber suspension flow: formation of a fiber network
Abstract : The aim of the present work is to experimentally study the dynamics of the formation of a fiber network formed from the filtration of a fiber suspension. This is relevant for all industrial applications (e.g. papermaking, productions of composite material, etc. READ MORE
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24. Polyelectrolyte Complexes : Their Characterization and use for Modification of Wood Fibre Surfaces
Abstract : For economical reasons filler particles and less expensive fibre raw materials are more frequently used in papermaking. This influences the mechanical properties of the formed papers in a negative way and it is therefore necessary to add strength-enhancing agents to the papermaking furnish. READ MORE
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25. Properties of modified starches and their use in the surface treatment of paper
Abstract : The papermaking industry uses a large amount of starch each year, both as a wet-end additive and as a rheological modifier in surface sizing and coating colors. It is important to be able to reduce the amount of chemicals used in the papermaking and surface treatment process, to reduce costs and to make the process even more efficient. READ MORE