Search for dissertations about: "Polymer substrate"

Showing result 16 - 20 of 159 swedish dissertations containing the words Polymer substrate.

  2. 16. Tailoring Adhesion and Wetting Properties of Cellulose Fibres and Model Surfaces Using Layer-by-Layer Technology

    Author : Emil Gustafsson; Lars Wågberg; Gero Decher; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : The versatile layer-by-layer (LbL) technique, for consecutive adsorption of polyelectrolytes and charged nanoparticles onto a substrate, was used to modify cellulose fibres and model surfaces for improved mechanical and wetting properties. In addition to being used to modify cellulose substrates, the LbL technique was also used to create cellulose surfaces suitable for high resolution adhesion measurements. READ MORE

  4. 17. Fundamentals of Wetting and Mechanical Durability of Superhydrophobic Coatings

    Author : Pontus Olin; Lars Wågberg; Fredrik Tiberg; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : In paper I the friction between three different superhydrophobic surfaces and water drops were investigated using high‑speed video. The surfaces were two based on a hydrophobic wax and the third was the leaf of a Lotus (Nelumbo Nucifera). The acceleration of water drops was measured as a function of drop size and surface inclination. READ MORE

  5. 18. Electrically Conducting Cellulose Yarns for Electronic Textiles

    Author : Sozan Darabi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electronic textiles; textiles; conjugated polymers; regenerated cellulose yarns; electrical properties; electrically conducting yarns; organic thermoelectrics;

    Abstract : Wearable electronics can be used for the purpose of fitness tracking, health monitoring, energy harvesting, and even for communication. Electronic textiles (e-textiles) are a versatile platform which can be employed for the realization of wearable electronics. READ MORE

  6. 19. Modification of polymeric particles via surface grafting for 3D scaffold design

    Author : Robertus Wahyu Nayan Nugroho; Ann-Christine Albertsson; Orlando J. Rojas; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; surface grafting; PLA; PLLA; hydrophilic polymers; particles; geometry; steric stabilization; atomic force microscopy AFM ; polyelectrolyte multilayers; 3D scaffold; bone tissue engineering; surface degradation;

    Abstract : Surface modification techniques have played important roles in various aspects of modern technology. They have been employed to improve substrates by altering surface physicochemical properties. READ MORE

  7. 20. Cellulose-based Conducting 3D and 2D Composites for Applications in Plant Science and Responsive Systems

    Author : Vasileios Oikonomou; Eleni Stavrinidou; Magnus Berggren; Anna Herland; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymers; cellulose; conjugated polymers; volume changes; plant growth substrates;

    Abstract : Polymers (Greek: poly=many, meros=part) are large molecules made up of many small parts (monomers) in a repetitive way, as a term was introduced for the first time (1833) by the Swedish chemist, Jöns Jakob Berzelius. By the combination of different monomers, the resulting polymer can exhibit various properties, such as biodegradability, photosensitivity and electrical conductivity. READ MORE