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Showing result 1 - 5 of 168 swedish dissertations matching the above criteria.
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1. Lignin Extraction from Black Liquor - Properties of the Liquors and Sulphur Content in the Lignin
Abstract : Kraft lignin isolated by precipitation can be considered as being a valuable renewable source of energy and material. Removing lignin from black liquor is also advantageous as it decreases the load on the recovery boiler, which is usually the limiting factor in the production of kraft pulp. READ MORE
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2. Viscosity and boiling point elevation of black liquor from the lignin extraction process and the modification of extracted lignin
Abstract : .... READ MORE
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3. Biosynthesis, interactions, and structure of native lignin
Abstract : Wood biomass is an important resource in the development ofstrategies towards replacement of fossil-based materials. Woodcomprises cellulose, hemicelluloses and lignin, in amounts thatvary between species. READ MORE
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4. Lignin-Based Thermosets with Tunable Mechanical and Morphological Properties : A Study of Structure-Property Relationships
Abstract : Nowadays, there is an urgent need to decrease our dependence on fossilresources and shift towards the use of renewable resources for advancingsustainable development. Utilizing renewable and bio-based raw materials,such as lignocellulosic biomass, for designing new materials is a promisingapproach to promote this objective. READ MORE
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5. Effects of Cell Wall Structure on Tensile Properties of Hardwood : Effect of down-regulation of lignin on mechanical performance of transgenic hybrid aspen. Effect of chemical degradation on mechanical performance of archaeological oak from the Vasa ship
Abstract : Wood is a complex material and the mechanical properties are influencedby a number of structural parameters. The objective of this study has been toinvestigate the relationship between the structure and the mechanical propertiesof hardwood. Two levels were of special interest, viz. READ MORE