Duration: 01.03.2020 - 28.02.2022
As part of the BMBF funding measure KMU-Innovativ: Resource Efficiency and Climate Protection, Rhenotherm started this new cooperation project with the University of Duisburg-Essen.
The aim of the project is to develop a novel non-stick coating with integrated resistance heating in order to be able to offer an environmentally friendly, sustainable and energy-efficient alternative to conventional heating rollers and calenders. It should be possible to dispense with the use of additives (heating oil) so that the disposal of operating materials is completely eliminated. Furthermore, the heating wires with low voltage are operated very energy-efficiently. The heating wires should transfer the thermal energy directly to the workpieces to be processed, so that the rollers are no longer completely heated. Energy consumption should be reduced by up to 80%.
Heating rollers and calenders are used in numerous industrial areas. In the paper industry, they are used for supercalendering and drying to obtain particularly smooth and shiny paper. In the textile industry they are used to drive the residual moisture out of the textile or to hide the seams in waterproof clothing. Furthermore, heating rollers and calenders can be used to process plastic films by heating and making the plastic malleable. Plastic films are needed in almost all areas of everyday life these days. In the car, for example, structured foils are used in windshields to connect the outer and inner windows. In the manufacture of yoghurt cups, plastic packaging or blisters, plastic films are an important starting material.