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Collaborative project: Development and application of biostatic agents from renewable resources for the stabilization of water based fluids as cooling lubricants (FSP-Bioschmierstoffe)

Project


Project code: 22026618
Contract period: 01.05.2019 - 30.04.2022
Budget: 96,201 Euro
Purpose of research: Experimental development
Keywords: bio-based lubricants, renewable ressources

Biostatic agents from renewable resources will be developed and applied using the example of cooling lubricants, as they are extensively applied in the technosphere. The microbial contamination esp. of water based cooling lubricants has adverse effects on machine operators, machines and the function of fluids. Usually, synthetic biocides are added in order to prevent microbial attack. However, the use of biocides is viewed increasingly critical and legally regulated. Actually, this seriously affects the number of available biocides. The resulting bottlenecks are addressed by this R+D project. It is well known that plants have developed a diversity of antimicrobial substances. These substances have rather biostatic effects, inhibiting growth and reproduction of microbes. Hence, they are expected to have a more advantageous potential with regard to toxicological and ecotoxicological effects than synthetic biocides. First, a comprehensive inquiry will be performed in order to select biostatic/biocide compounds that can be found in terrestric or aquatic plants and wastes from processing of plants in Germany or that can be biotechnologically produced from those. Furthermore, their availability will be checked. Besides extraction of compounds from plants and vegetable waste, synthetic chemistry shall be considered in order to improve certain properties like solubility or stability. Finally, the operational capability of the selected biostatic agents will be demonstrated and optimized in practical tests with cooling lubricants and metalworking machinery.

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