Search for dissertations about: "Cellulosa- och pappersteknik"
Showing result 21 - 25 of 61 swedish dissertations containing the words Cellulosa- och pappersteknik.
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21. Development of New Bacteria-Reducing Surfaces
Abstract : In recent years, antibacterial surfaces have been a subject of increased interest. Especiallyinteresting are non-leaching, contact-active surfaces that physically disrupts the bacterialcell using immobilised cationic polymers. Thus the risks of bacterial resistance and discharge of hazardous biocides is minimised. READ MORE
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22. Hemicellulose as barrier material
Abstract : Polysaccharides constitute an important source of raw materials for the packaging industry today. Polysaccharides have good natural barrier properties which are necessary for packaging films. Cellulose is the forerunner among renewable polymers for such applications. Hemicelluloses represent a new interesting breed of barrier materials. READ MORE
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23. Biochemical modification of wood components
Abstract : The degradation of cellulose found in wood is one of the most important degradation processes for the carbon flux on earth. The degradation is performed by microorganisms that typically use enzymes. READ MORE
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24. Lignin polysaccharide networks in softwood and chemical pulps : characterisation, structure and reactivity
Abstract : The chemical interactions between the main wood components i.e., cellulose, hemicelluloses and lignin are of fundamental importance for understanding the chemical aspects of wood formation and its reactivity during fibre processing e.g during chemical pulping of wood. READ MORE
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25. Some factors affecting the amount of residual phase lignin during kraft pulping
Abstract : The amount of lignin which needs to be removed according to the slow residual delignification phase in kraft pulping, i e residual phase lignin, has been studied as a function of the process conditions. The variebles studied were the concentrations of hydroxide ions, hydrogensulfide ions, sodium ions (ionic strength) and temperature. READ MORE