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Aufsatz
UV Surface Treatment of Polycarbonate for Adhesion Improvement to Liquid Silicone Rubber (LSR)
(2018)
The adhesion of self-adhesive liquid silicone rubbers to thermoplasts is only possible for a few selected material combinations without a surface pretreatment. A UV pretreatment is effective for polycarbonate and short irradiation periods are sufficient. To clarify the required irradiation conditions that result in an improvement of adhesion, the varying irradiation conditions were assessed. FTIR-ATR spectroscopy was used for surface analysis to characterize the change in the polymer surface.
Aufsatz
Textile Waste Becomes Plastic Composites
(2023-09)
Every year, large quantities of textiles end up in landfills or in thermal recycling. However, some of this waste could also serve as raw materials for composite materials. Left-over cotton fibers of the textile industry, for example, are suitable as reinforcing fibers that enhance the mechanical properties of bio-based plastics. By using such waste streams, materials can be reinforced in a cost-effective and bio-based way in the future.
Dissertation
Analysis on Successful Project Completion in Reward-based Crowdfunding
(2023-10)
Project creators often encounter difficulties when trying to secure funding. This is primarily because traditional investors view projects as lacking equity, not attractive enough and carrying high risks. However, with the advent of Web 2.0 crowdfunding has emerged as an alternative financing option in recent years. While crowdfunding continues to foster innovation and creativity the success rate of reward-based crowdfunding campaigns is often below 50%. Consequently, project creators are actively seeking solutions ...
Dissertation
On the Path to Professionalization in Coaching: From Coaches' Attitudes for Participating in Coaching Research to Improving Coachees' Reflective Capacity
(2024)
This dissertation aims to advance the professionalization of coaching by advancing coaching research. It does this by meeting the demand for methodological grounding and examining coaches' motives for participating in coaching research, thereby contributing to the generation of larger and more-realistic samples (Study 1), by conducting theory-driven research based on psychotherapy research, and by using an observer-based method to evaluate behavioral data (Study 2). At the same time, it contributes to improving the ...
Dissertation
Experimental analyses of individual sustainable choices
(2023)
This dissertation complements the aforementioned studies by considering choice and allocation experiments which allow to directly examine how individuals choose between sustainable prod-ucts and their conventional counterparts. It particularly examines how different experimental designs and interventions causally affect choices between sustainable electricity contracts and investments over their conventional counterparts and provides guidance on how to analyze these choices using a Monte Carlo experiment.