Search for dissertations about: "cellulose aerogels"
Showing result 1 - 5 of 24 swedish dissertations containing the words cellulose aerogels.
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1. Cellulose Nanofibril-based Hybrid Materials : Eco-friendly design towards separation and packaging applications
Abstract : Nanocellulose has been lately considered as the “Holy-Grail” in the design of sustainable materials due to its bio-origin and an unprecedented combination of prominent features, including good mechanical properties, anisotropy and versatile surface chemistry. In addition, nanocellulose in the form of cellulose nanofibrils, can adopt variable structures and morphologies depending on the processing technique, such as aerogels, films and monoliths. READ MORE
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2. Development and Tailoring of Low‐Density Cellulose‐Based Structures for Water Treatment
Abstract : The challenges posed by our limited clean water sources and the well-known global water pollution demand more efficient water purification technologies. Additionally, the increasing environmental awareness has inspired a shift towards eco-friendly and renewable materials and technologies. READ MORE
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3. Bio-based preparation of nanocellulose and functionalization using polyelectrolytes
Abstract : Nanocellulosa, som kan utvinnas från skogsråvara, har de senaste åren fått mycket uppmärksamhet för sina intressanta egenskaper och breda användningsområde. Studierna i denna avhandling syftar till att vidga möjligheterna att använda nanocellulosa i olika applikationer. READ MORE
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4. Porous Cellulose Materials from Nano Fibrillated Cellulose
Abstract : In the first part of this work a novel type of low-density, sponge-like material for the separation of mixtures of oil and water has been prepared by vapour deposition of hydrophobic silanes on ultra-porous nanocellulose aerogels. To achieve this, a highly porous (> 99 %) nanocellulose aerogel with high structural flexibility and robustness is first formed by freeze-drying an aqueous dispersion of the nanocellulose. READ MORE
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5. Flame-Retardant Cellulose Fibre/Fibril Based Materials via Layer-by-Layer Technique
Abstract : According to an analysis conducted by the Swedish Chemicals Inspectorate in 2006, the approximate numbers of fire injuries per year in Sweden are 100 deaths, 700 major and 700 minor injuries.1 Observations also show that there has been an increase in the number of house fires during recent years. READ MORE