Search for dissertations about: "pmma polymer thesis"

Showing result 1 - 5 of 34 swedish dissertations containing the words pmma polymer thesis.

  2. 1. 3D-Printing of Fluorinated Polymer-based Materials for Plasmonic Sensing

    Author : Ida Östergren; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 3D-printing; polymer nanocomposite; hydrogen sensing; plasmonic nanoparticles; Teflon AF; fused deposition modeling;

    Abstract : Hydrogen attracts growing interest as a versatile energy carrier, serving as a fuel for cars, a heat source, or a reagent for chemical synthesis. At the same time, the demand for accurate and selective hydrogen sensors is increasing because of both safety concerns and the need for process monitoring. READ MORE

  4. 2. Free Volume Depth Profiling at Polymer Surfaces and Interfaces

    Author : John Algers; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biopolymers; Polymerteknik; Polymer technology; polymer interfaces; polymer surfaces; positron lifetime; free volume;

    Abstract : Pulsed low energy positron beams provide a unique and non-destructive tool to depth probe the free volume of polymers at surfaces and interfaces. Since the employment of low energy positron beams in polymer research is an emerging technique, some focus in this thesis has been on extracting methods and equations needed to interpret the experimental data. READ MORE

  5. 3. On the polymer-based nanocomposites for electrical switching applications

    Author : Venkatesh Doddapaneni; Muhammet Sadaka Toprak; Hans Edin; Rudolf Gati; Matti Ilmari Lehtonen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer-based nanocomposites; Inorganic nanoparticles; Electrical arcs; Circuit breakers; Ablation Outgassing; Arc interruption capability; PMMA; CuO; Fe3O4; ZnO; Au; Radiative energy; Electric power; Arc temperature.; Physics; Fysik;

    Abstract : Recent research demonstrated that polymer based nanocomposites (PNCs) have been engineered in order to improve the arc interruption capability of the circuit breakers. PNCs are the combination of nano-sized inorganic nanoparticles (NPs) and polymers, opened up new developments in materials science and engineering applications. READ MORE

  6. 4. Development of a Novel Method for Evaluation of Interfacial Tension between Polymer Melts

    Author : Thomas Rundqvist; LU Innovation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymer technology; Polymer Blends; Imbedded Fiber; Imbedded Disk; High viscosity; Interfacial tension; Polymer melts; biopolymers; Polymerteknik;

    Abstract : A novel method for the evaluation of interfacial tension of high viscosity polymer melts is described. The method involves the tracking of the shape evolution of a highly deformed droplet of one material imbedded in a second one. This makes it possible to determine the interfacial tension over a relatively short time period. READ MORE

  7. 5. Nonlinear Absorbing platinum(II) Acetylides for Optical Power Limiting Applications

    Author : Robert Westlund; Eva Malmström; Sergei Vinogradov; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; optical power limiting; Polymer chemistry; Polymerkemi;

    Abstract : During the past few decades, laser technology has had a strong impact on our society, providing important contributions to materials processing, data storage, communications, medicine, and defense applications. However, the progress in laser technology has also brought about the development of harmful portable high‐power lasers and tactical laser weapons. READ MORE