ISIS Neutron and Muon Source Data Journal

Influence of shear on polymer adsorption at solid / liquid interfaces

Abstract: Lubricants contain a complex mixtures of polymers and base oils that must provide protection to moving surfaces with minimal energy loss due to friction or viscous drag. There is considerable interest in the relationship between bulk and interfacial properties of lubricants, especially under the extremes of pressure, temperature and shear rate are routinely found in engines. Here we propose a simple model system, based on polybutadiene and squalane, for which we have already established the phase behaviour under quiescent conditions. Interestingly, rheometry using a multi-pass rheometer indicates that phase separation may occur under moderate shear rates. We will use NR to determine surface segregation under quiescent conditions and under shear using a new setup on INTER. Results will give valueable insights into the modes of action and failure in model lubricants.

Principal Investigator: Dr Richard Thompson
Experimenter: Dr Rebecca Welbourn
Experimenter: Dr Stephen Boothroyd
Experimenter: Mr Matthew Litwinowicz
Experimenter: Dr Ophelie Squillace
Experimenter: Mr Colin Gibson
Experimenter: Mr Ben Robertson
Experimenter: Dr Andrew Smith
Experimenter: Dr James Hart
Experimenter: Mr Callum Bannister
Experimenter: Dr Benedicte Galmiche

DOI: 10.5286/ISIS.E.RB1810577

ISIS Experiment Number: RB1810577

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

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; (2018): Influence of shear on polymer adsorption at solid / liquid interfaces, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810577

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