9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

Effects of the wetting process in wool and mohair fibres studied by small-angle neutron scattering (SANS)

12 Jul 2012, 17:30
2h
IT Building

IT Building

Poster Presentation Track A - Division for Condensed Matter Physics and Materials Poster Session

Speaker

Mr Tjatji Tjebane (Necsa)

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

MSc

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Apply to be<br> consider for a student <br> &nbsp; award (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)

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.

Main supervisor (name and email)<br>and his / her institution

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

Primary author

Mr Tjatji Tjebane (Necsa)

Co-authors

Dr Chris Franklyn (Necsa) Dr Gyula Torok (Research Institute for Solid State Physics and Optics, Budapest, Hungary)

Presentation Materials

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