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Photo-Oxidation of PVC-Coated Membrane Material Under Different Light Sources
Corresponding Author(s) : Xudong Yang
Asian Journal of Chemistry,
Vol. 26 No. 17 (2014): Vol 26 Issue 17
Abstract
The effects of accelerated weathering tests on PVC-coated membrane material are studied to establish the possible correlation between different light sources and ultraviolet radiation intensities. Two light sources and three UV radiation intensities were provided in accelerated weathering tests, they are 1 UVB-313 lamp, 4 UVB-313 lamps and 4 UVA-340 lamps, respectively, to study the influences of different UV irradiation intensities and light sources on photo-oxidation of the PVC-coated membrane material. The tensile properties of the PVC-coated samples under different accelerated weathering conditions were then measured. In addition, FTIR (Fourier Transform Infrared) and UV-visible (ultraviolet visable range) were used to analyze the samples. The study shows that the photo-oxidation mechanism of PVC weathering samples does not change under the two different light sources and different UV radiation intensities. However, the study indicates that the weathering degree of PVC samples is incongruous when accepted equivalent radiation energy. The difference between the luminescence spectra of the two light sources is the main reason. Therefore, the Reciprocity law does not apply to predict the performance of PVC-coated membrane material used outdoors. However, according to the different luminescent spectrum of the two light sources, the effective UV radiation was introduced in the Schwarzschild’s law. Eventually, the correlation of different weathering results under different UV radiation intensities and light sources could be better established.
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- H.L. Yi, X. Ding and S.H. Chen, Acta Mater. Comp. Sin., 22, 98 (2005).
- W.C. Qiu, X. D. Yang, X. Ding, Technical Textiles, 10, 6 (2009).
- A. Torikai and H. Hasegawa, Polym. Degrad. Stab., 63, 441 (1999); doi:10.1016/S0141-3910(98)00125-6.
- M. Li and Y.G. Hsuan, Geotextiles Geomembr., 22, 511 (2004); doi:10.1016/j.geotexmem.2004.06.001.
- ASTM G154-06: Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials.
- ASTM D5035-06: Standard Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method).
- H.G. Den: in ed.: R.M. Koerner, Durability Experience in The Netherlands', In: Durability and Aging of Geosynthetics, Elsevier, London, pp. 82-94 (1989).
- M.H. Fisch and R. Bacaloglu, Rubber and Composites, 28, 119 (1999); doi:10.1179/146580199101540213.
- O. Birer, S. Suzer, U.A. Sevil and O. Guven, J. Mol. Struct., 482-483, 515 (1999); doi:10.1016/S0022-2860(98)00693-0.
- J.W. Martin, Repeatability and Reproducibility of Field Exposure Results, ACS Symposium Series, Vol. 805, pp. 2-22 (2001).
- X.F. Chen, D.W. Cao and J.X. Lei, Effect of Plasticizer on Ultraviolet Light Aging Properties of PVC, China Plastics Industry, p. 35 (2007).
- M. Ito and K. Nagai, Polym. Degrad. Stab., 92, 260 (2007); doi:10.1016/j.polymdegradstab.2006.11.003.
- H. Baltacioglu and D. Balkose, J. Appl. Polym. Sci., 74, 2488 (1999); doi:10.1002/(SICI)1097-4628(19991205)74:10<2488::AID-APP18>3.0.CO;2-B.
- X.D. Yang and X. Ding, Geotextiles Geomembr., 24, 103 (2006); doi:10.1016/j.geotexmem.2005.11.002.
References
H.L. Yi, X. Ding and S.H. Chen, Acta Mater. Comp. Sin., 22, 98 (2005).
W.C. Qiu, X. D. Yang, X. Ding, Technical Textiles, 10, 6 (2009).
A. Torikai and H. Hasegawa, Polym. Degrad. Stab., 63, 441 (1999); doi:10.1016/S0141-3910(98)00125-6.
M. Li and Y.G. Hsuan, Geotextiles Geomembr., 22, 511 (2004); doi:10.1016/j.geotexmem.2004.06.001.
ASTM G154-06: Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials.
ASTM D5035-06: Standard Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method).
H.G. Den: in ed.: R.M. Koerner, Durability Experience in The Netherlands', In: Durability and Aging of Geosynthetics, Elsevier, London, pp. 82-94 (1989).
M.H. Fisch and R. Bacaloglu, Rubber and Composites, 28, 119 (1999); doi:10.1179/146580199101540213.
O. Birer, S. Suzer, U.A. Sevil and O. Guven, J. Mol. Struct., 482-483, 515 (1999); doi:10.1016/S0022-2860(98)00693-0.
J.W. Martin, Repeatability and Reproducibility of Field Exposure Results, ACS Symposium Series, Vol. 805, pp. 2-22 (2001).
X.F. Chen, D.W. Cao and J.X. Lei, Effect of Plasticizer on Ultraviolet Light Aging Properties of PVC, China Plastics Industry, p. 35 (2007).
M. Ito and K. Nagai, Polym. Degrad. Stab., 92, 260 (2007); doi:10.1016/j.polymdegradstab.2006.11.003.
H. Baltacioglu and D. Balkose, J. Appl. Polym. Sci., 74, 2488 (1999); doi:10.1002/(SICI)1097-4628(19991205)74:10<2488::AID-APP18>3.0.CO;2-B.
X.D. Yang and X. Ding, Geotextiles Geomembr., 24, 103 (2006); doi:10.1016/j.geotexmem.2005.11.002.