Dr. Brill + Partner News Center
You will find the latest information about our company and the industries we work in here. Please feel free to contact us if you have any questions or suggestions about topics or content!
March 29, 2021
Neues Forschungsprojekt: HaptoCheck
Development of a standardized test method to evaluate the anti-adhesion properties of surfaces against biofilms on ship hulls. Akronym: HaptoCheck - ZIM-Förderkennzeichen KK5193801KS0 The present project addresses the development of a test method for the adhesive strength of microbial coatings (biofilms) on ship hulls. Biofilms form the first stage of colonization of surfaces and create the basis for macroscopic fouling, which has a negative impact on fuel consumption in shipping. The main focus of the research project is initially to establish series of measurements on the detachment of biofilms from test surfaces as a function of wall shear stress. For this purpose, a laboratory-scale test apparatus will be produced to simulate the sailing speed of ships in practice. On this basis, abiotic model substances are to be developed, with the aid of which the adhesion of microbial surface coatings to antifouling coatings can be simulated in the test apparatus and used to quantify such effects as part of a standardized test procedure. On the basis of the test results, a final evaluation of the effectiveness of such coating systems is to be which should enable developers to optimize the non-stick properties of their products more cost-effectively and effectively. The resulting new test method is a screening test for estimating the effectiveness of antifouling systems. It is a seasonally independent rapid test procedure that will provide paint companies with quick results for further development. The procedure will not be able to replace the later semi-annual open water tests with the promising variants, but it will accelerate the development work of the companies.
September 25, 2020
International Coastal Cleanup Day 2020 auf Norderney
Plastic waste and microplastics are probably the most discussed environmental topics at the moment besides global warming. On September 19, 2020, the staff of our Institute for Antifouling and Biocorrosion on Norderney participated again in the International Ocean Cleanup Day. The campaign was carried out together with the local BUND district group and the seventh-grade students from Norderney, who were also introduced to the habitat and waste problem. The Norderney public swimming pool and the technical services supported the action with man and machine. Fishing nets made of plastic accounted for the largest share of the stranded garbage. However, blankets and clothing from 342 containers of MS ZOE, lost at the beginning of 2019, were also found. In addition, numerous packages and containers, some from faraway countries, paint rollers, car spoilers, toilet covers and brushes, but also a whale rib and a message in a bottle were found. For more than 30 years, the US environmental organization Ocean Conservancy has been calling for the largest voluntary marine protection campaign - the International Coastal Cleanup Day (https://oceanconservancy.org/trash-free-seas/international-coastal-cleanup/).
September 11, 2020
Australian lime tube worm - boat owners in trouble
From year to year there are also biological news in our work. In 2020 some boat owners in brackish water harbours like Hooksiel or Emden have experienced a nasty surprise. Within a short period of time, some ships and jetties had been colonized en masse with the Australian lime tube worm (Ficopomatus enigmaticus). The species occurs mainly in brackish water and was first detected in Europe (Caen, FR) in 1921 and in Germany (Emden) in 1975. The worm is sensitive to cold, but relatively insensitive to salinity fluctuations. On Norderney, too, a sailing ship arriving from Emden had to be craned out of the water and cleaned due to the massive infestation (see photo). The functioning antifouling coating on the hull prevented the settlement of the worm very well. However, all the more problematic were the areas that could not (could not) be painted, and those where the coating was rubbed off, e.g. by touching the ground. In brackish water harbors, there have been some boat owners who have renewed the coating less frequently in order to protect the environment and their wallets. Due to the lower fouling pressure during voyages in changing salinities this also worked. It seems that this is now for the time being no longer so easily possible with longer moorings in Hooksiel or Emden. Translated with www.DeepL.com/Translator (free version)
May 29, 2020
Today our dynamic test rig "RotoMarin®" was launched. It was developed by the Institute for Antifouling and Biocorrosion to investigate the growth of fouling on surfaces under the most realistic conditions possible. For this purpose, the surfaces to be examined are screwed as circular segment-shaped test plates onto plates moved by a rotating axis and moved at speeds of up to 19 knots.