09/2017, Finished R&D Projects

Development of a new technical dispersion adhesive based on faba bean proteins

  • funding program: ZIM- ZF (BMWI)
  • projest partner: Fritz Häcker GmbH + Co. KG
  • term: 01.07.2017 – 31.03.2019

Initial position:

Adhesives based on synthetic materials are currently found in many areas of our daily lives. In addition, there has been an increasing ecological awareness among consumers during the last few years, which also creates new demands on adhesives. A market with a high demand for new biological adhesives has already developed. The well-known topics of environmental pollution, ecology and sustainability offer a very great growth opportunity for these new biological adhesives.

Nowadays plant proteins and carbohydrates are already used for the production of natural dispersion adhesives. Soy-based, gluten-containing and starch-containing adhesives are found on the market. Since these adhesives are technologically limited in their applications, there is great potential for innovative new biological adhesives.

Aim:

The aim of the project is the development of a process for the production of an faba bean protein based adhesive. For this purpose, a process for protein recovery will be developed, which guarantees optimum adhesive properties of the proteins. In addition, adhesive formulations for special applications will be developed focusing on the production of an ecological adhesive for applications in the fields of paper, packaging, construction and the wood industry.

Results:

A standard technology for protein production was established with the aid of statistical experimental design. This enables the production of field bean protein concentrates with good adhesion properties. Furthermore a subsequent chemical modification of the protein showed a positive influence on the adhesion properties.

Dispersion adhesives based on succinylated protein were produced using a newly developed formulation. The results indicate, that a comparable quality as with conventional adhesives can be achieved. For example, the product was successfully used for bonding wood, cardboard and wood with broken wood and fiber cracks.

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