Evaluation of piezoelectric PVDF polymers for use in space environments. II. Effects of atomic oxygen and vacuum UV exposure


Autoria(s): Dargaville, Tim R.; Celina, Mathew; Martin, Jeffrey W.; Banks, Bruce A.
Data(s)

2005

Resumo

The effects of atomic oxygen (AO) and vacuum UV radiation simulating low Earth orbit conditions on two commercially available piezoelectric polymer films, poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride-trifluoroethylene) P(VDF-TrFE), have been studied. Surface erosion and pattern development are significant for both polymers. Erosion yields were determined as 2.8 � 10�24 cm3/atom for PVDF and 2.5 � 10�24 cm3/atom for P(VDF-TrFE). The piezoelectric properties of the residual material of both polymers were largely unchanged after exposure, although a slight shift in the Curie transition of the P(VDF-TrFE) was observed. A lightly cross-linked network was formed in the copolymer presumably because of penetrating vacuum ultraviolet (VUV) radiation, while the homopolymer remained uncross-linked. These differences were attributed to varying degrees of crystallinity and potentially greater absorption, and hence damage, of VUV radiation in P(VDFTrFE) compared with PVDF.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/33103/

Publicador

John Wiley & Sons

Relação

http://eprints.qut.edu.au/33103/1/c33103.pdf

DOI:10.1002/polb.20549

Dargaville, Tim R., Celina, Mathew, Martin, Jeffrey W., & Banks, Bruce A. (2005) Evaluation of piezoelectric PVDF polymers for use in space environments. II. Effects of atomic oxygen and vacuum UV exposure. Journal of Polymer Science Part B: Polymer Physics, 43(18), pp. 2503-2513.

Direitos

Copyright 2005 John Wiley & Sons

Fonte

Faculty of Science and Technology

Palavras-Chave #030301 Chemical Characterisation of Materials #091200 MATERIALS ENGINEERING #atomic oxygen #space environment #vacuum ultraviolet radiation #vinylidene fluoride
Tipo

Journal Article