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Cellulose acetate butyrate long fibre polyvinyl alcohol nanofibrecomposites

Nick Tucker 1Lasse T. Hansen 2Jon J. Stanger 1Kathleen Hofman 1Mark Staiger 3Nigel G. Larsen 1

1. The New Zealand Institute for Crop and Food Research Ltd (CFR), Private Bag 4704, Christchurch 8140, New Zealand
2. University of Southern Denmark (SDK), Niels Bohrs Allé 1, 5230 Odense M, Odense 5230, Denmark
3. Dept. mechanical Engineering, University Canterbury (ME-UOC), Private Bag 4800, Christchurch 8140, New Zealand


Cellulose acetate butyrate (CAB) has long been used as a composite matrix as part of fabric coatings in the aerospace industry. It also has the ability to form thin tough films by casting. This property can be exploited to make experimental long nanofibre composites. Polyvinyl alcohol (PVoH) fibres were electrospun to use as the reinforcing element, these fibres were cast into CAB films to produce composite test specimens.

The electrospinning machine used for this work has a constant head device to feed the spinning head (a standard micropipette tip). The use of this type of constant pressure feed allows the user to establish a stable meniscus for the formation of the Taylor cone, and consequent drawing of fibre, the rate of meniscus replenishment is automatically matched to rate of fibre removal.  A passive method was used to produce fibres with a high degree of orientation, and random orientated fibre was also manufactured.

The material properties of the composites were examined using an Instron Universal Tester, and the mode of failure of the composites was examined by scanning electron microscopy (SEM).


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Related papers

Presentation: Oral at E-MRS Fall Meeting 2008, Symposium F, by Nick Tucker
See On-line Journal of E-MRS Fall Meeting 2008

Submitted: 2008-05-29 04:49
Revised:   2009-06-07 00:48