Search for dissertations about: "oil cellulose"

Showing result 1 - 5 of 43 swedish dissertations containing the words oil cellulose.

2. 1. Novel oil resistant cellulosic materials

   Author : Christian Aulin; Lars Wågberg; Derek Gray; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oleophobic; MFC; cellulose; oil resistant; contact angle; XPS; SEM; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Abstract : The aim of this study has been to prepare and characterise oil resistant cellulosic materials, ranging from model surfaces to papers and aerogels. The cellulosic materials were made oil resistant by chemical and topographic modifications, based on surface energy, surface roughness and barrier approaches. READ MORE

4. 2. Cellulose-based electrical insulation materials : Dielectric and mechanical properties

   Author : Rebecca Hollertz; Lars Wågberg; Markus Biesalski; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose; dielectric materials; electrical insulation; nanocellulose; nanoparticles; streamer; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : The reliability of the generation and distribution of electricity is highly dependent on electrical insulation and is essential for the prosperity of our society and a ubiquitous part of our everyday life. The present study shows how some important material properties affect the electrical properties of cellulose-based electrical insulation systems which are used together with mineral oil in high-voltage transformers. READ MORE

5. 3. Shapeable cellulosic materials

   Author : Malin Brodin; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite; polyethylene; coagulation; material properties; cellulose ester; interactions; gel; cellulose; ionic liquid;

   Abstract : ABSTRACTA palette of materials has been developed by the oil and gas sector. The expected depletion of fossil resources and the stress on the climate from burning them has, however, turned the world’s attention to renewable resources. READ MORE

6. 4. Cellulose Nanofibril-based Hybrid Materials : Eco-friendly design towards separation and packaging applications

   Author : Luis Valencia; Aji Mathew; Olli Ikkala; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibrils; hybrid materials; membranes; aerogels; separation; food packaging; Materials Chemistry; materialkemi;

   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

7. 5. Development and Tailoring of Low‐Density Cellulose‐Based Structures for Water Treatment

   Author : Zhaleh Atoufi Najafabadi; Lars Wågberg; Per A. Larsson; Julien Bras; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adsorption; Aerogels; Amyloid nanofibrils; Cellulose; Cellulose nanofibrils; β- lactoglobulin; water treatment; Adsorption; Aerogel; Amyloid nanofibriller; Cellulosa; Cellulosa nanofibriller; β- laktoglobulin; vattenbehandling; Fiber- och polymervetenskap; Fibre and Polymer Science;

   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