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A Study on UV Degradation of SBR and NR Containing Polymeric UV Stabilizer  

Kaang, Shin-Young (School of Applied Chemical Engineering, Chonnam National University)
Nam, Kyoung-Tae (School of Applied Chemical Engineering, Chonnam National University)
Hong, Chang-Kook (School of Applied Chemical Engineering, Chonnam National University)
Chae, Kyu-Ho (School of Applied Chemical Engineering, Chonnam National University)
Publication Information
Elastomers and Composites / v.41, no.3, 2006 , pp. 182-193 More about this Journal
Abstract
The retardation effects of a new polymeric UV stabilizer, DGEBA-HALS, on the UV degradation of SBR and NR were investigated in this study. The UV degradation behaviors of three different rubber compounds, without any photostabilizer and with commercial Cyabsorb UV-3529 and DGEBA-HALS, were compared. Also, the physical characteristics such as Young's modulus, tensile strength, blow-off deformation and crosslink density were examined. The Young's modulus was increased by UV irradiation for all samples, and the tensile strength, after UV irradiation, of the compound with UV stabilizer was better than that of the compound without stabilizer. Especially, the tensile strength of UV irradiated NR was improved by adding DGEBA-HALS. The results of blow-off deformation were in accord with those of Young's modulus. The degree of transmission of SBR compounds obtained from UV-vis transmission spectra was improved about 4% by adding the UV stabilizer. Commercial Cyabsorb UJV-3529 and DGEBA-HALS showed similar trends of transmission. The SEM photographs of SBR surface showed that the size of cracks created by UV irradiation became smaller by adding UV stabilizer. In particular, it is observed that the stabilization effect of DGEBA-HALS was better than that of commercial Cyabsorb UV-3529.
Keywords
NR; SBR; UV degradation; photostabilizer; DGEBA-HALS;
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  • Reference
1 W. Y. Wayne and J. Q. Pan, 'Desk References of Functional Polymers: synthesis and applications', ed. by R. Arshady, p. 621, American Chemical Society, Washington, 1997
2 A. N. Gent and L. H. Lewandowski, 'Blow-off Pressures for Adhering Layers' , Journal of Applied Polymer Science, 33, 1567 (1987)   DOI   ScienceOn
3 Ferdinand Rodriguez, 'Principles of Polymer Systems', 3rd, Hemisphere Publishing Co., 1989
4 Hercules Inc., 'Technical Information', Bulletin ORC-101F, p. 13
5 S. Oh and J. Sim, 'Photostabilizer', Polymer Science and Technology, 6, 108 (1995)
6 Jan. F. Rabek, 'Polymer Photodegradation', Chapman & Hall, London, 1995
7 P. J. Flory and J. Rehner Jr., 'Statistical Mechanics of Cross-Linked Polymer Networks', J. Chem. Phys., 11, 521 (1943)   DOI
8 K. Chae, J. Oh and H. Ham, Journal of Photoscience, 3, 167 (1996)
9 James E. Mark, 'Polymer Data Handbook', Oxford University Press, New York, 1999