Positron annihilation lifetime spectroscopy of mechanically milled protein fibre powders and their free volume aspects

Patil, K., Sellaiyan, S., Rajkhowa, R., Tsuzuki, T., Lin, T., Smith, S. V., Wang, X. and Uedono, A. 2012, Positron annihilation lifetime spectroscopy of mechanically milled protein fibre powders and their free volume aspects, in ICPA-16 2012 : Proceedings of the 16th International Conference on Positron Annihilation, IOP Publishing, [Bristol, England], pp. 1-6.

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Title Positron annihilation lifetime spectroscopy of mechanically milled protein fibre powders and their free volume aspects
Author(s) Patil, K.
Sellaiyan, S.
Rajkhowa, R.
Tsuzuki, T.
Lin, T.
Smith, S. V.
Wang, X.
Uedono, A.
Conference name International Conference on Positron Annihilation (16th : 2012 : Bristol, England)
Conference location Bristol, England
Conference dates 19-24 Aug. 2012
Title of proceedings ICPA-16 2012 : Proceedings of the 16th International Conference on Positron Annihilation
Editor(s) [Unknown]
Publication date 2012
Conference series International Conference on Positron Annihilation
Start page 1
End page 6
Total pages 6
Publisher IOP Publishing
Place of publication [Bristol, England]
Summary The present study reports the fabrication of ultra-fine powders from animal protein fibres such as cashmere guard hair, merino wool and eri silk along with their free volume aspects. The respectively mechanically cleaned, scoured and degummed cashmere guard hair, wool and silk fibres were converted into dry powders by a process sequence: Chopping, Attritor Milling, and Spray Drying. The fabricated protein fibre powders were characterised by scanning electron microscope, particle size distribution and positron annihilation lifetime spectroscopy (PALS). The PALS results indicated that the average free volume size in protein fibres increased on their wet mechanical milling with a decrease in the corresponding intensities leading to a resultant decrease in their fractional free volumes.
Language eng
Field of Research 091205 Functional Materials
020203 Particle Physics
Socio Economic Objective 830505 Raw Wool
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2012, IOP Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052908

Document type: Conference Paper
Collection: Institute for Frontier Materials
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