ISIS Neutron and Muon Source Data Journal

Humidity Effects on Surface Segregation in Plasticized Poly-Vinyl Alcohol Films

Abstract: PVA film is widely used as a non-toxic water soluble polymer. This proposal relates to its use in unit dose detergent pouches where plasticised PVA film stores a concentrated mixture of surfactants. We wish to understand the ageing and failure mechanisms of these films and in particular the extent to which small molecules within PVA film can migrate to the surface and modify the surface properties. Following our recently published NR and ion beam study, we now proposed to exploit the unique ability of NR to study the surfactant migration under realistic atmospheric conditions in which the humidity is controlled. The influence of humidity is known to be significant to the shelf-life of commercial systems, and determining the influence of this parameter on some well defined model systems if of both fundamental and practical significance.

Principal Investigator: Dr Richard Thompson
Experimenter: Mr Arron Briddick
Experimenter: Dr Maxmilian Skoda
Local Contact: Dr Rebecca Welbourn
Experimenter: Miss Rebecca Fong

DOI: 10.5286/ISIS.E.RB1620108

ISIS Experiment Number: RB1620108

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; (2016): Humidity Effects on Surface Segregation in Plasticized Poly-Vinyl Alcohol Films, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620108

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