Sökning: "polydimethylsiloxane PDMS"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden polydimethylsiloxane PDMS.

  1. 1. Stabilizers in crosslinked polydimethylsiloxane

    Författare :Kamyar Fateh-Alavi; KTH; []
    Nyckelord :Polymer; Material Science; Polydimethylsiloxane; Stabilizers;

    Sammanfattning : The loss and recovery of the surface hydrophobicity areimportant phenomena when highvoltage insulators, with a shedmaterial composed of polydimethylsiloxane (PDMS), are used. Theloss of hydrophobicity is mostly due to the oxidativecrosslinking which takes place on the PDMS surface duringexposure to electrical discharges, e. g. corona discharges. LÄS MER

  2. 2. Integration of Surface Acoustic Wave and Microfluidic Technologies for Liquid-Phase Sensing Applications

    Författare :Kiryl Kustanovich; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; IDE; Resonator; SH-SAW; Impedance Spectroscopy; Surface Acoustic Wave; PDMS; LiNbO3; Microfluidics; Sensor;

    Sammanfattning : This thesis discusses a new concept for construction of a novel SAW in-liquid sensor employing surface acoustic wave resonance (SAR) in a one-port configuration. In this concept, the reflective gratings of a one-port SAW resonator are employed as mass loading-sensing elements, while the SAW transducer is protected from the measurement environment, reducing power losses significantly. LÄS MER

  3. 3. Carbon Nanotubes for Electronic Packaging: Growth, Novel Devices and 3D Networks

    Författare :Yifeng Fu; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; multi-scale modeling; electrospinning; microfin; PDMS; chemical vapor deposition CVD ; Carbon nanotube CNT ; double-walled CNT DWNT ; CNT covalent bonding; CNT transfer; thermal management; packaging;

    Sammanfattning : Carbon nanotubes (CNTs) have shown great potential of application in electronics because of their attractive physical properties, such as high surface-to-volume ratio, high electron mobility, high Young’s modulus, high thermal conductivity, low thermal expansion coefficient, etc. However, many obstacles are yet to be removed to use CNTs as building blocks in electronic systems. LÄS MER

  4. 4. Silicone Rubber Insulators: Impacts of Material Formulation in Coastal Environment

    Författare :Tomas G Gustavsson; Chalmers University of Technology; []
    Nyckelord :surface characterization; aging; filler level; outdoor insulation; leakage current measurements; material formulation; silicone rubber; polymeric insulators; coastal environment; polydimethylsiloxane PDMS ;

    Sammanfattning : This thesis deals with influences of material formulation on the performance of silicone rubber high voltage insulators in a coastal environment. Samples and insulators with known differences in material compositions have been used in this task. In the first step, a screening test with cylindrical samples was initiated. LÄS MER

  5. 5. Outdoor aging of silicone rubber formulations in coastal environment

    Författare :Tomas G Gustavsson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material forulation; coastal environment; polydimethylsiloxane PDMS ; filler level; outdoor insulation; aging; silicone rubber; polymeric insulators; surface characterization; leakage current measurements;

    Sammanfattning : .... LÄS MER