Search for dissertations about: "artificial weathering"

Showing result 1 - 5 of 8 swedish dissertations containing the words artificial weathering.

  2. 1. Studies on the barrier properties of exterior wood coatings

    Author : Jan Ekstedt; KTH; []
    Keywords : Coatings; surfactants; water absorption value; EN 927; paint; additives; moisture dynamics; absorption; desorption; artificial weathering; artificial exposure; computerized tomography; MRI.;

    Abstract : Coatings for exterior wood have two basic functions. One isto give an aesthetically acceptable surface appearance andcolour. The other is to provide protection against wooddegradation by microbiological or physical attack. READ MORE

  4. 2. Long-term performance of water repellants on rendered autoclaved aerated concrete

    Author : Hülya Kus; KTH; []
    Keywords : water repellants; renderings; autoclaved aerated concrete; surface treatments; long-term performance; degradation; natural weathering; artificial weathering; moisture monitoring;

    Abstract : Many failures of external walls made of porous buildingmaterials are caused by excessive moisture content,particularly after driving rain and under long duration ofmoist conditions. Lack of sufficient protection againstexposure conditions is one of the reasons for external wallsprematurely demonstrating failures, i.e. READ MORE

  5. 3. Chemical Pollutants Released to the Marine Environment by Degradation of Plastic Debris

    Author : Berit Gewert; Matthew MacLeod; Magnus Breitholtz; Merle Plassmann; Martin Wagner; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plastic; microplastic; degradation; leachates; weathering; photo-oxidation; marine environment; toxicity; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Since the beginning of the mass production in the 1940s, plastic has been manufactured in quickly increasing amounts. Plastic debris accumulates in the environment and lately much attention has been drawn to the pollution in the world’s oceans. READ MORE

  6. 4. Geochemical Characterization of Historical W, Cu and F Skarn Tailings at Yxsjöberg, Sweden : With focus on scheelite weathering and tungsten (W) mobility

    Author : P.B Lina Hällström; Lena Alakangas; Olof Martinsson; Carlos Ayora; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Tillämpad geokemi; Applied Geochemistry;

    Abstract : Little attention has been paid to tailings from skarn ore deposits and their environmental impact, even though they can contain elevated content of elements of potential concern. Historical skarn tailings from a former scheelite mine at Yxsjöberg, Sweden, containing e.g. READ MORE

  7. 5. Holistic evaluation and testing of coil coatings

    Author : Alexander Wärnheim; C. Magnus Johnson; Per M. Claesson; Dan Persson; Carita Kvarnström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Anti-corrosion coatings; Coil coating; Weathering; FTIR; nano-FTIR; Hyperspectral imaging; AFM; Nanomechanical properties; korrosionsskyddsbeläggnignar; bandlackerade beläggningar; väderbeständighetstestning; FTIR; nano-FTIR; hyperspectral avbildning; Atomkraftsmikroskopi; nanomekaniska egenskaper; Kemi; Chemistry;

    Abstract : Coil coatings are durable  organic coatings used to protect metal sheets from corrosion and improve their aesthetic properties. Because of their extensive use, coil coatings have long been of interest for industrial and academic researchers. READ MORE