ISIS Neutron and Muon Source Data Journal

Impact of model contaminants on surface active marine coating addtives

Abstract: Marine coatings are often based on silicone resins, with further additives to inhibit biofouling or enable release of adhered species. The efficiency of additives decreases with time and particularly with exposure to common contaminants, such as oils. We have started to explore this for model PDMS/additive systems by studying changes in surface property via dynamic contact angle. These experiments reveal dramatic changes in surface property upon exposure to hydrocarbon oil and we propose to use NR on simplified models to elucidate the molecular origins of this change in surface property. We postulate that alkane contaminants may promote surfactant leaching from PDMS film either by swelling the matrix (osmotic stress) or by compatibilising the additive, enabling it to diffuse out more easily. NR experiments will isolate these effects, so helping to formulate better marine coatings.

Principal Investigator: Dr Richard Thompson
Local Contact: Dr Mario Campana
Experimenter: Mr Matthew Litwinowicz

DOI: 10.5286/ISIS.E.RB2010547

ISIS Experiment Number: RB2010547

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Richard Thompson et al; (2020): Impact of model contaminants on surface active marine coating addtives, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010547

Data is released under the CC-BY-4.0 license.