Development of new binders, paints and varnishes based on low-yellowing linseed oil
- funding program: “Nachwachsende Rohstoffe” des BMEL / FNR im Förderbereich: Nachwachsende Rohstoffe / Energie und Klimafonds des BMEL (FNR)
- term: 01.09.2017 – 31.08.2019
- project partner: Biopin Processing GmbH
Initial position:
Paints and varnishes are coatings for various materials to protect against external influences such as water, wind, oxygen or even mechanical stress. Binders are needed to make paints and varnishes. Preference is given to natural raw materials such as vegetable oils as binders, preferably fast-drying oils. This requires a special fatty acid composition of the oils. A high proportion of (poly-) unsaturated fatty acids has a positive effect on the drying behavior of paints and varnishes. In particular, linseed oil is used most frequently today for the production of binders. A disadvantage of using linseed oil is the yellowing of the paints and varnishes over time.
Aim:
The aim of the research project is to develop a process for the treatment of linseed oil that makes it possible to produce low-yellowing linseed oil. Based on the low-yellowing linseed oil formulations for binders have to be developed with which recipes for new low-yellowing coatings and paints will be developed.
Results:
In the project extensive investigations could be carried out for the pre-treatment of linseed oil with different adsorbent agents. At PPM e.V. it was successful to produce a brighter oil with a significantly reduced dark yellowing. The evaluation was carried out with color and color change measurements of sample coatings in combination with storage
Back
