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IJSTR >> Volume 2- Issue 5, May 2013 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Comparison Of The Dynamic Curing Kinetics Of Araldite DLS 772 / 4 4' DDS Epoxy System Using Differential Scanning Calorimetry And Microwave Heated Calorimeter

[Full Text]



Babatunde Bolasodun, Alan Nesbitt, Arthur Wilkinson, Richard Day



Keywords- curing; differential scanning calorimetry; epoxy; microwave heated calorimeter; kinetics



Abstract: - Comparative studies were carried out on the curing kinetics of an epoxy resin Araldite DLS 772 mixed with a hardener, 4 4' Diaminodiphenyl sulfone. Differential scanning calorimetry and a microwave heating calorimeter were used to monitor the curing kinetics of conventionally and microwave cured epoxy samples. These studies were carried out under non-isothermal conditions using five different heating rates. There was a significant increase in the fractional conversion of the microwave cured samples compared to the conventionally cured samples. The curing reactions for samples cured using microwave heating took place over a smaller temperature range. Higher reaction rates were observed in the samples cured using microwave heating. The activation energies of the microwave cured samples of Araldite DLS 772 / 4 4'DDS epoxy system were about ten percent lower than activation energies of conventionally cured samples.



[1] Boey, F.Y.C. and B.H. Yap, Microwave curing of an epoxy-amine system: effect of curing agent on the glass-transition temperature. Polymer testing, 2001. 20(8): p. 837-845.H. Poor, “A Hypertext History of Multiuser Dimensions,” MUD History, http://www.ccs.neu.edu/home/pb/mud-history.html. 1986. (URL link *include year)

[2] Navabpour, P., et al., Comparison of the curing kinetics of the RTM6 epoxy resin system using differential scanning calorimetry and a microwave-heated calorimeter. Journal of Applied Polymer Science, 2006. 99(6): p. 3658-3668.

[3] Hill, D.J.T., G.A. George, and D.G. Rogers, A systematic study of the microwave and thermal cure kinetics of the DGEBA/DDS and DGEBA/DDM epoxy-amine resin systems. Polymers for Advanced Technologies, 2002. 13(5): p. 353-362.

[4] Navabpour, P., et al., Comparison of the curing kinetics of a DGEBA/acid anhydride epoxy resin system using differential scanning calorimetry and a microwave-heated calorimeter. Journal of Applied Polymer Science, 2007. 104(3): p. 2054-2063.D.S. Coming and O.G. Staadt, "Velocity-Aligned Discrete Oriented Polytopes for Dynamic Collision Detection," IEEE Trans. Visualization and Computer Graphics, vol. 14, no. 1, pp. 1-12, Jan/Feb 2008, doi:10.1109/TVCG.2007.70405. (IEEE Transactions )

[5] Costa, M., L. Pardini, and M. Rezende, Influence of Aromatic Hardeners in the cure kinetics. Materials Research, 2005. 8: p. 65-70.

[6] Mijovic, J. and J. Wijaya, Comparative calorimetric study of epoxy cure by microwave vs thermal energy. Macromolecules, 1990. 23(15): p. 3671-3674.J. Williams, “Narrow-Band Analyzer,” PhD dissertation, Dept. of Electrical Eng., Harvard Univ., Cambridge, Mass., 1993. (Thesis or dissertation)

[7] Salla, J.M. and X. Ramis, Comparative study of the cure kinetics of an unsaturated polyester resin using different procedures. Polymer Engineering and Science, 1996. 36(6): p. 835-851.

[8] Ramis, X. and J.M. Salla, Effect of the initiator content and temperature on the curing of an unsaturated polyester resin. Journal of Polymer Science Part B: Polymer Physics, 1999. 37(8): p. 751-768.

[9] Doyle, C.D., Kinetic analysis of thermogravimetric data. Journal of Applied Polymer Science, 1961. 5(15): p. 285-292J.M.P. Martinez, R.B. Llavori, M.J.A. Cabo, and T.B. Pedersen, "Integrating Data Warehouses with Web Data: A Survey," IEEE Trans. Knowledge and Data Eng., preprint, 21 Dec. 2007, doi:10.1109/TKDE.2007.190746.(PrePrint)

[10] Ozawa, T., Kinetic analysis of derivative curves in thermal analysis. Journal of thermal analysis and calorimetry, 1970. 2(3): p. 301-324

[11] Kissinger, H.E., Reaction kinetics in differential thermal analysis. Analytical Chemistry, 1957. 29(11): p. 1702-1706.

[12] Thostenson, E.T. and T.W. Chou, Microwave processing: fundamentals and applications. Composites Part A: Applied Science and Manufacturing, 1999. 30(9): p. 1055-1071.

[13] Jacob, J., L.H.L. Chia, and F.Y.C. Boey, Thermal and non-thermal interaction of microwave radiation with materials. Journal of Materials Science, 1995. 30(21): p. 5321-5327.

[14] Marand, E., K.R. Baker, and J.D. Graybeal, Comparison of reaction mechanisms of epoxy resins undergoing thermal and microwave cure from in situ measurements of microwave dielectric properties and infrared spectroscopy. Macromolecules, 1992. 25(8): p. 2243-2252.

[15] Wei, J., et al., Comparison of microwave and thermal cure of epoxy resins. Polymer Engineering and Science, 1993. 33(17): p. 1132-1140