Novel starch based adhesives
The purpose of this project is to develop new generation of starch based adhesives that enable to make new generation starch based adhesives that can replace synthetic non-biodegradable polymers such as polyvinyl alcohol. A renewable and cheaper alternative for PVOH, based on starch, would be very desirable from a commercial and environmental point of view. The currently used starch derivatives still have a lack in performance. Hence we need to restructure starch in such a way that enhanced functionality is created. This can be done via reactive extrusion. This technique allows to combine gelatinisation of the starch and modifying it simultaneously. By doing this, remodelling of the starch takes place which can induce new functionalities. The application performance will be investigated by our partners Cordial and Agrana in bagging glue formulations. For this rheological characteristics as well the adhesive properties of the extruded starch derivatives will be determined and compared with its counter type PVOH.