Sökning: "Julia Sundmark"
Hittade 2 uppsatser innehållade orden Julia Sundmark.
1. Wet Spinning of Cellulose-Lignin Precursor for Carbon Fibers : Effect of Coagulation Bath Composition & Spin Finish
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanikSammanfattning : Carbon fibers (CF) are a material with a composition of over 90% carbon, which has high mechanical properties and low density. This unique combination of properties makes it requirable in applications such as vehicles, aerospace, wind power, and space industries. Commercially made CF are made using the fossil raw material polyacrylonitrile (PAN). LÄS MER
2. Minimering av ditionitdoseringen i linje 12 : Optimering av kemikalieanvändning för pappersblekning på Hallsta pappersbruk
Kandidat-uppsats, Uppsala universitet/Institutionen för kemi - ÅngströmSammanfattning : Manufacturing of paper is a large industry in Sweden. At Hallsta paper mill dithionite is used to bleach the thermo mechanical pulp (TMP) at their production line 12. The purpose of this work was to minimize the addition of dithionite while maintaining the brightness of the produced paper. LÄS MER