RAW MATERIALS AND APPLICATIONS Influence of various Additives in the Thermoplastic on the Adhesion of LSR-Thermoplastic Composites

Von Svenja Marl, Ralf-Urs Giesen, Hans-Peter Heim, Kassel, Germany 1 min Lesedauer

The aim of this study is to investigate the influence of additives in thermoplastics on the peel force between liquid silicone rubber (LSR) and thermoplastics. For this purpose, polyamide 6 (PA 6) and polybutylene terephthalate (PBT) are compounded with additives in the first step. In the next step, two-component parts made of LSR and the thermoplastics are injection molded to determine the peel force.

Different groups of additive.(Bild:  WDK Wirtschaftsverband der deutschen Kautschukindustrie e. V., Frankfurt)
Different groups of additive.
(Bild: WDK Wirtschaftsverband der deutschen Kautschukindustrie e. V., Frankfurt)

Liquid silicone rubber (LSR) is a material with unique properties. These include low-temperature flexibility down to -50 °C and high-temperature resistance up to 200 °C, with mechanical properties largely retained. LSR is also physiologically harmless, which is why it is used in many areas such as medical technology, the household sector, and the automotive industry.