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Development of a lignin modified binders based on epoxy resins (EpoLig)
Project
Project code: 22035118
Contract period: 01.07.2019
- 30.06.2020
Budget: 198,949 Euro
Purpose of research: Experimental development
Keywords: epoxy resins, lignin, renewable ressources
The project objective is the development of epoxy resins modified with the renewable raw material lignin. These should have a large lignin content and be comparable to commercial epoxy resins. While the research partner Fraunhofer IAP plays the decisive role in polymer development, Fraunhofer IKTS essentially focuses on the exploration of the potential applications of these modified resins. Taking into account the suggestions of the industrial partners involved in the project, the technical suitability of the lignin modified resins should be adapted and improved. The viscosity and the curing characteristics (hot or cold curing, induction, gelling and curing) are essential for the processability of the modified resins. After crosslinking, the mechanical, thermal and chemical characteristics of the lignin-epoxy-blends are to be determined and compared with conventional resins. The objective is to identify potential fields of application by characterizing the developed lignin-containing systems as comprehensively as possible. The first possible field of application is the use of these systems in polymer concretes (PC). By means of an iterative procedure, a suitable resin-filler system is to be developed for this, whose processing properties are comparable to conventional polymer concretes. For the resulting material properties of the lignin-containing polymer concrete, it is essential to be clarified whether the hydrophobic properties of the lignin components contribute to a reduction in the moisture absorption of the duromer phase after curing. Conventional anhydride hardened polymer concretes show often a significant loss of their mechanical properties if they are outsourced in water. The reduction of this effect would enable a lot of possible applications.
Section overview
Subjects
- Process engineering
- Renewable Resources
