• Alkali-Activated Metakaolin as a Zeolite-Like Binder for the Production of Adsorbents 

      Vegere, Kristine; Vitola, Laura; Argalis, Pauls; Bajare, Diana; Krauklis, Andrey (Peer reviewed; Journal article, 2019)
      This work reports and describes a novel alkali-activated metakaolin as a potential binder material for the granulation of zeolites, which are widely used as CO2 adsorbents. The alkali-activated binders are zeolite-like ...
    • Characterization of Rough PTFE Surfaces by the Modified Wilhelmy Balance Technique 

      Karl, Christian; Krauklis, Andrey; Lang, Andrej; Giese, Ulrich (Peer reviewed; Journal article, 2020)
      The wetting of rough polymer surfaces is of great importance for many technical applications. In this paper, we demonstrate the relationship between the mean roughness values and the fractal dimension of rough and self-affine ...
    • Composite Material Recycling Technology—State-of-the-Art and Sustainable Development for the 2020s 

      Krauklis, Andrey; Karl, Christian; Gagani, Abedin; Jørgensen, Jens Kjær (Peer reviewed; Journal article, 2021)
      Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the ...
    • Long-term ISO 23936-2 sweet oil ageing of HNBR 

      Akulichev, Anton; Alcock, Benjamin; Krauklis, Andrey; Tiwari, Avinash; Echtermeyer, Andreas (Peer reviewed; Journal article, 2021)
      A hydrogenated nitrile butadiene rubber (HNBR) compound is subjected to ageing in a simulated oil and gas environment in accordance with ISO 23936-2 standard at two elevated temperatures (130 °C and 150 °C) for a period ...
    • Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods 

      Krauklis, Andrey; Karl, Christian; Rocha, Iuri B. C. M.; Burlakovs, Juris; Ozola-Davidane, Ruta; Gagani, Abedin; Starkova, Olesja (Peer reviewed; Journal article, 2022)
      Service lifetimes of polymers and polymer composites are impacted by environmental ageing. The validation of new composites and their environmental durability involves costly testing programs, thus calling for more affordable ...
    • Zero Stress Aging of Glass and Carbon Fibers in Water and Oil—Strength Reduction Explained by Dissolution Kinetics 

      Echtermeyer, Andreas; Krauklis, Andrey; Gagani, Abedin; Sæter, Erik (Peer reviewed; Journal article, 2019)
      Understanding the strength degradation of glass and carbon fibers due to exposure to liquids over time is important for structural applications. A model has been developed for glass fibers that links the strength reduction ...