Sökning: "hydroxyethyl cellulose"
Visar resultat 1 - 5 av 30 avhandlingar innehållade orden hydroxyethyl cellulose.
Sammanfattning : Fossil-based polymeric foams, based on polymers such as polystyrene and polyurethane, are important and widely employed materials due to their good mechanical properties relative their low density, the low price and the possibility for large-scale production. There are however a few disadvantages with these foamed products. LÄS MER
2. Characterization of cellulose pulps and the influence of their properties on the process and production of viscose and cellulose ethersDetta är en avhandling från Umeå : Umeå Universitet
Sammanfattning : Today’s market offers an ever-increasing range of cellulose pulps (derivative pulps) made fromvarious wood types through different delignification processes. Each pulp segment has its uniquecharacteristics, which makes it difficult for the producer of cellulose derivatives to choose the mostsuitable pulp for optimum processability and product quality. LÄS MER
3. Complexation between hydrophobically modified polymers and amylose. Gelation and competition by surfactantsDetta är en avhandling från Monica Egermayer, Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University
Sammanfattning : Aqueous mixtures of hydrophobically modified polymers (HMP) with amylose have been investigated by rheology and 1H NMR. Amylose can cross-link HMP chains by forming single-helical inclusion complexes with the hydrophobic side chains of the HMP, leading to thermoreversible, elastic, and thixotropic gels at ambient temperatures. LÄS MER
- Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg
Sammanfattning : Fossil-based polymeric foams are important materials due to their good mechanical properties relative their low density, the low price and the possibility for large-scale production. They are widely used in cushioning, absorbing and insulation applications. There are however a few disadvantages with these foamed products. LÄS MER
5. An Investigation of Thermogelling Aqueous Systems of Ethyl(HydroxyEthyl)Cellulose and Ionic SurfactantsDetta är en avhandling från Department of Food Technology, Lund University
Sammanfattning : Aqueous solutions of a particular type of the nonionic cellulose derivative ethyl(hydroxyethyl)cellulose (EHEC) may form thermoreversible gels in the presence of ionic surfactants. Low-viscous solutions can be transformed to clear, stiff gels as the temperature is increased. LÄS MER