To shorten the wait for the 14th ThGOT and the 6th Optics Colloquium we would like to give you a small foretaste of our numerous exciting technical presentations in the coming weeks.
High rate deposition of protective coatings with a microwave plasma.
Dr. Stefan Merli/ University of Stuttgart - Institute of Interfacial Process Engineering and Plasma Technology (IGVP) - Plasma Technology, Stuttgart
Plasma-enhanced chemical vapor deposition (PECVD) of protective coatings on glass, metal and especially plastic materials is of increasing interest in industry. However, for industrial applications, the PECVD process must meet the requirements for fast process time and scalability to large substrate areas of several m² to be economical. In this paper, a scalable PECVD process for high-rate coatings of polycarbonate (PC) based on SiOx and ZnO is presented. The Duo-Plasmaline, a microwave plasma source developed at IGVP, is used to generate high density plasmas. Due to its good scalability, both linear and array, the source is ideally suited for treating large substrate areas of several m². Accelerated weathering tests showed an improved protective effect against UV radiation compared to commercially available coatings, which are commonly used as protective coatings on PC today.
This talk will be presented in SESSION B: NEW TRENDS IN SURFACE TECHNOLOGY on March 13, 2019 at 3:00 pm.
The adhesion of LSR-polypropylene composites after storage
Annette Rüppel / University of Kassel - Institute for Materials Engineering, Plastics Engineering, UNIpace - Plasma Technology, Kassel
The adhesion properties of liquid silicone rubber (LSR) and various types of polypropylene are investigated. In order to ensure adhesion of both components, a surface activation (silicatization) of the PP surface is carried out. FTIR measurements and contact angle measurements are performed to analyze the long-term stability of the surface activation method (storage of the activated surfaces). In addition, microscopic examinations are carried out to analyze any changes in the surface roughness of the activated thermoplastic surfaces.
In accordance with the VDI 2019 guideline, adhesion is determined by means of peel tests and the results are compared.
This talk will be presented in SESSION B: NEW TRENDS IN SURFACE TECHNOLOGY on March 13, 2019 at 3:20 pm.