9-13 July 2012
Africa/Johannesburg timezone
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Effects of the wetting process in wool and mohair fibres studied by small-angle neutron scattering (SANS)

Presented by Mr. Tjatji TJEBANE on 12 Jul 2012 from 17:30 to 19:30
Type: Poster Presentation
Session: Poster Session
Track: Track A - Division for Condensed Matter Physics and Materials

Abstract

Although the hygroscopic nature of wool has been known for many years and its overall effect on the properties of wool fibres, there are no reported observations of where the water molecules are situated within the fibre structure. SANS was used to observe the location of water in the fibres. Due to random neutron scattering cross-sections on different isotopes of the same element, heavy water (D2O) with low scattering cross-section was used instead of light water (H2O) so as to enhance the signal. The distinct signature observed provided an indication of where the water molecule is attached from the wool fibres. SANS as a technique using low-energy neutrons to study nano-material properties will be outlined and the results obtained from this method will be discussed.

Award

Yes

Level

MSc

Supervisor

C.C. Theron Chris.Theron@up.ac.za

Paper

No

Place

Location: IT Building
Room:


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