Essays about: "wet-spinning"
Showing result 1 - 5 of 9 essays containing the word wet-spinning.
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1. Wet Spinning of Cellulose-Lignin Precursor for Carbon Fibers : Effect of Coagulation Bath Composition & Spin Finish
University essay from Uppsala universitet/Tillämpad mekanikAbstract : 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). READ MORE
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2. Wet spinning of carbon fiber precursors from cellulose-lignin blends in a cold NaOH(aq) solvent system
University essay from Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)Abstract : Carbon fiber (CF) is predominantly produced from fossil-based sources and is therefore an area of interest for further development towards a more sustainable society. The purpose of this thesis work was to investigate the possibility of producing precursor fibers (PFs) for CF production from a blend of renewable cellulose andlignin. READ MORE
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3. Mechanical properties of viscose filament : Made from recycled cotton textile and softwood dissolving pulp
University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Abstract : The textile industry is one of the largest industries in the world and it causes up to 10 % of the global greenhouse gas emissions. With large environmental issues of cotton- and oil-based textiles, other options are explored such as man-made fibers producing fibers like viscose and lyocell. READ MORE
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4. Wet Spinning of Lignin and Cellulose Precursor Fibers Using Cold Sodium Hydroxide Dissolution
University essay from KTH/Fiber- och polymerteknologiAbstract : Användningen av cellulosa och lignin för prekursorfibrer (PF) för kolfibrer (CF) är ett mycket intressant forskningsområde på grund av den stora miljöpåverkan som dagens PF-fossilbaserade råvara PAN har. Denna avhandling fokuserar på att utveckla PF med ett kallt NaOH-upplösningssystem med cellulosakoncentrationer från 4,5 till 5,5 viktprocent med varierande massaviskositet och tillsats av lignin från 0-40 viktprocent jämfört med cellulosa. READ MORE
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5. Evaluation of Wet Spinning of Fungal and Shellfish Chitosan for Medical Applications
University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomiAbstract : The aim of this project was to address the food waste problem, particularly bread waste, to some extent by producing monofilaments obtained from wet spinning of fungal hydrogel through the cultivation of Rhizopus delemar on bread waste. The project had two phases. READ MORE