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http://dx.doi.org/10.7234/kscm.2009.22.5.037

Effect of Combined Environmental Factors on Degradation Behavior of Carbon Fiber/Epoxy Composites  

Hwang, Young-Eun (금오공과대학교 기계공학과 대학원)
Lee, Gil-Hyung (금오공과대학교 기계공학과 대학원)
Yoon, Sung-Ho (금오공과대학교 기계공학부)
Publication Information
Composites Research / v.22, no.5, 2009 , pp. 37-42 More about this Journal
Abstract
Thermal analysis properties and chemical structure of carbon fiber/epoxy composites under environmental exposure were examined using an accelerated aging tester which can simulate real weather conditions such as temperature, moisture and ultraviolet. The composite specimens were exposed to combined environmental factors up to 3000 hours. Thermal analysis properties and chemical structure of the composites were evaluated with various exposure times through Modulated DSC and FTIR. According to the results of Modulated DSC, the glass transition temperature increased as exposure time increased due to the formation of network structures in the composites. Also endotherm peaks of enthalpy relaxation related to physical aging that can affect the properties of the composites were observed as exposure time increased. From the results of FTIR, it was found that the location of the peaks was little affected by exposure time, but the intensity of the peaks slightly decreased as exposure time increased due to the curing reaction in the epoxy group.
Keywords
carbon fiber/epoxy composites; combined environmental factors; degradation behavior; accelerated aging tester; thermal analysts properties; chemical structure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Yoon, S. H., Lee, S. J., and Lee, J. K., "Effects of Comvined Environmental Factor on Mechanical and Thermanl Analysis Properties of Graphite/Epoxy Composites," Transactions of The Korean Society of Mechanical Engineers, Vol13, No. 5, 2002, pp. 1416-1425
2 Bockenheimer C., Fata, D., and Possart., "New Aspects of Aging in Epoxy Networks. IIrt,ydrothermal Aging," J. Appl. Polym. Sci., Vol. 91 , 2004, pp. 369-377   DOI   ScienceOn
3 Yoon, S. H., "Evaluation of Durability for Glass Fabric/Phenolic Composites under Salt water Environment." Journal of The Korean Society for Composite Materials, Vol. 18, No. 4, 2005, pp. 27-33   과학기술학회마을   ScienceOn
4 Ellyin, F. and Maser, R., "Environmental Effects on the Mechanical Properties of Glass-fiver Epoxy Composite Tubular Specimens." Composites Science and Technology, Vol. 64, 2004. pp. 1863-1874   DOI   ScienceOn
5 Lee, S. Y., Park, C. H., Seo, S. H., Kim, Y. U., Kim, Y. H., Park, Y. H., Choi, H. L., and Moon, K. C., "Durability Test of E-Glass FiberNinylester Resin Composites for Specific Environments," Textile Science and Engineering, Vol. 42, No. 6, 2005, pp. 405-411
6 Kumar, B. G., Singh, R. P., and Nakamura, T., "Degradation of Carbon Fiber-reinforced Epoxy Composites by Ultraviolet Radiation and Condensation," Journal of Composite Materials，Vol. 36, No. 24, 2002, pp. 2713-2733   DOI   ScienceOn
7 Frigione, M., Lettieri, M., and Mecchi，A. M., "Environmental Effects on Epoxy Adhesives Employed for Restoration of Historical Buildings," J of Materials in Civil Engineering, Vol. 18, No. 5, 2006, pp. 715-722   DOI   ScienceOn
8 Fraga, F., Castro-Diaz, C., Rodriguez-Nunez，E., and Martinez-Agoitos, J. M, "Physical Aging for an Epoxy Network Diglycidyl Ether of Bisphenol A/m-xylylenediamine," Polymer, Vol 44, No. 19, 2003, pp. 5779-5784   DOI   ScienceOn
9 Thomas, L. C., "Modulated $DSC^\circledR$ Basics; Optimization of MDSC Experimental Conditions," TA Instruments Technical Paper TP 008, 2005
10 Nichols, M. E., Wang, S. S., and Geil, P. H., "Creep and Physical Aging in Polyamideimide Carbon Fiber Composite, "Journal of Macromolecular Science, Part B: Physics. Vol. 29, No. 4, 1990, pp. 303-336   DOI
11 Cook, W. D., Mehrabi, M., and Edward, G. H., "Aging and Yielding in Model Epoxy Thermosets," Polymer, Vol. 40, No. 5, 1999, pp. 1209-1218   DOI   ScienceOn
12 Kim, J. H., Choi, K. Y., Joo, H. J., Jin, F. L., and Park, S. J., "A Study on the Water Resistance and Thermo-mechanical Behaviors of Epoxy Adhesives," Elastomer, Vol. 40, No.3, 2005, pp. 166-173   과학기술학회마을   ScienceOn
13 Bockenheimer C., Fata, D., and Possart, W., "New Aspects of Aging in Epoxy Networks. I. Thermal Aging," J. Appl Polym. Sci., Vol. 91 , 2004, pp. 361-368   DOI   ScienceOn
14 Lee, J. K., Hwang, J. Y., and Gillham, J. K., "Erasure Below Glass-Transition Temperature of Effect of Isothermal Physical Aging in FuIly Cured Epoxy/Amine Thermosetting System," J. Appl. Polym. Sci., Vol. 81, 2001, pp. 396-404   DOI   ScienceOn
15 Deo, B., Hodgkin, J., Krstina, J., Mardel, J., and Tian, W., "Accelerated Aging Versus Realistic Aging in Aerospace Composite Materials. I. The Chemistry of Thermal Aging in a Low-Temperaturε-Cure Epoxy Composite," J Appl Polym. Sci., Vol. 102, 2006, pp. 4291-4303   DOI   ScienceOn
16 Croll, S. G., Shi, X., and Fernando， B. M. D., "The Interplay of Physical Aging and Degradation during Weathering for Two Crosslinked Coatings," Progress in Organic Coatings, Vol. 61, 2008, pp. 136-144   DOI
17 Kong, E. S-W', "Physical Aging in Epoxy Matrices and Composites," Advances in Polymer Science, Vol. 80, 1980, pp. 125-171   DOI