Sökning: "SOM modification"

Visar resultat 21 - 25 av 143 avhandlingar innehållade orden SOM modification.

  1. 21. Surface-modified wood based on silicone nanofilaments for improved liquid repellence

    Författare :Haiyan Yin; Magnus Wålinder; Agne Swerin; Andra Dédinaité; Lars Wadsö; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; acetylated wood; surface modification; superamphiphobicity; superhydrophobicity; plastron; silicone nanofilaments; multicycle Wilhelmy plate method.; Trä; acetylerat trä; ytmodifiering; superamfifobicitet; superhydrofob; plastron; silikon-nanofilament; multicykel Wilhelmy-metod; Building Materials; Byggnadsmaterial;

    Sammanfattning : The increasing awareness of sustainability motivates the development of building materials from renewable resources. The requirements of wood-based products with improved durability, for example, an enhanced liquid repellence, is still a challenge. LÄS MER

  3. 22. Polyethylene – metal oxide particle nanocomposites for future HVDC cable insulation : From interface tailoring to designed performance

    Författare :Dongming Liu; Ulf Gedde; Mikael Hedenqvist; Richard Olsson; Linda Schadler; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC; electrical insulation; core-shell nanoparticles; surface modification; silane chemistry; nanocomposites; polyethylene; adsorption; long-term stability; interface; particle dispersion; cavitation; conductivity; HVDC; elektrisk isolation; ytmodifiering; silankemi; nanokompositer; polyeten; adsorption; långtidsstabilitet; ytskikt; partikeldispergering; kavitation; ledningsförmåga; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Low-density polyethylene (LDPE) nanocomposites containing metal oxide nanoparticles are considered as promising candidates for insulating materials in future high-voltage direct-current (HVDC) cables. The significant improvement in dielectric properties compared with unfilled polymer is attributed to the large and active interface between the nanoparticles and the polymer. LÄS MER

  4. 23. Poly(ethylene-graft-ethylene oxide) Preparation and Properties in Polymer Blends

    Författare :Åsa Halldén; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface modification; Graft copolymers; Polymer blends; Polyethylene; Polyethylene oxide; Polyamide; Polymer technology; biopolymers; Polymerteknik;

    Sammanfattning : This thesis describes the preparation, characterisation and properties of poly(ethylene-graft-ethylene oxide) (PE-PEO). The grafting reaction was carried out with the grafting onto method using the carboxylic acid groups of poly(ethylene-co-acrylic acid) (PEAA) as reactive sites in an esterification reaction with poly(ethylene oxide) mono-methyl ethers (MPEO) of varying molecular weights: 750, 2000 and 5000. LÄS MER

  5. 24. OSTE Microfluidic Technologies for Cell Encapsulation and Biomolecular Analysis

    Författare :Xiamo Zhou; Wouter van der Wijngaart; Ellis Meng; KTH; []
    Nyckelord :Microfluidics; microfabrication; cell encapsulation; core-shell particle; microparticle synthesis; off-stoichiometry-thiol-ene; OSTE; OSTE ; lab-on-a-chip; surface modification; core-shell particle co-synthesis; microar- ray; micromixer; bonding; surface modification; droplet microfluidics; protein screening.; Mikrofluidik; mikrofabrikation; cellinkapsling; cores-shell kap- sel; mikrokapselsyntes; lab-on-chip; ickestökiometrisk tiol-en; OSTE; OSTE ; ytmodifiering; samtidig syntes av core-shellkapslar; mikroarray; mikromixer; sammanfogning; dropletmikrofluidik; proteindetektion.; Tillämpad medicinsk teknik; Applied Medical Technology;

    Sammanfattning : In novel drug delivery system, the encapsulation of therapeutic cells in microparticles has great promises for the treatment of a range of health con- ditions. Therefore, the encapsulation material and technology are of great importance to the validity and efficiency of the advanced medical therapy. LÄS MER

  7. 25. In-plane mechanical properties of acetylated birch plywood and its response to humidity elevation

    Författare :Yue Wang; Magnus Wålinder; Roberto Crocetti; Marie Johansson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Birch plywood; wood modification; acetylation; in-plane mechanical properties; load-to-face grain angle; moisture effect; Björkplywood; trämodifiering; acetylering; mekaniska egenskaper i planet; belastningsriktning; klimategenskaper; Building Materials; Byggnadsmaterial;

    Sammanfattning : Due to the recent flourish of modern timber structures, there is an increasing demand for engineered wood products (EWPs). However, outdoor exposure of EWPs often poses a risk of durability-related issues. LÄS MER