Manufacturing of water-resistant starch containers
There is a need in the market for new, sustainable manufacturing solutions for the packaging industry. Furthermore there is a need of increasing the value of rest streams in various applications. Starch rest streams are an interesting raw material source for packaging applications, however, current starch packaging concepts do not often have the right water resistant properties to be used in a wide range of applications.
The intended results of this project are:
I. Chemically modified thermoplastic hydrophobic starch
Main deliverable: Most effective chemical modification of pre-gelatinized
II. Process to obtain chemically modified thermoplastic hydrophobic
Deliverable: Suitable manufacturing process for the most effective
modification and a prototype of a water resistant starch tray
The aim of this project is to develop thermoplastic water-resistant containers from starch and a process to manufacture them. The desired final process consists of a combination of mechanical and / or chemical modification together with thermal plasticization in one step. The process will lead to thermoplastic starch that can be further or in situ processed into a tray. The resulting product should be water resistant, biodegradable or recyclable, made mainly of starch and suitable for food contact applications. These requirements make this project highly challenging but open the possibilities for innovation.
Although the goal of a water resistant starch container was not achieved, possibly other starch based packaging could benefit from the results. This would improve the environmental impact by increasing the biodegradable content.