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     Research Journal of Applied Sciences, Engineering and Technology

    Abstract
2015(Vol.9, Issue:12)
Article Information:

Study on Curing Kinetics of Heat-resistant Flexible Polyamide Modified Epoxy Resin Adhesive

Hua Li, Hongkai Wang and Xingli Jiao
Corresponding Author:  Hua Li 
Submitted: ‎December ‎26, ‎2014
Accepted: ‎February ‎5, ‎2015
Published: April 25, 2015
Abstract:
In order to study the effects of numerous variables affecting the reaction rate of heat-resistant flexible modified epoxy resin adhesive, the curing kinetics of polyamide modified epoxy resin was studied. The heat-resistant flexible modified epoxy resin adhesive cured at room-temperature was prepared with epoxy resin, polysulfide rubber and organosilicone as adhesive component, polyamide as main curing agent and addition of different modified filler and the curing agent containing benzene ring structure. The curing kinetics of polyamide modified epoxy resin was studied by Differential Scanning Calorimetry (DSC) at different heating speeds and the characteristic temperatures of the curing process were analyzed and confirmed. the kinetics parameters of activation energy was calculated using Flynn-Wall-Ozawa equation and Kissinger equation, respectively, then the kinetic model of curing reaction was built as d&alpha/dt = 4.38×107 exp (-57740/RT) (1-&alpha)0.93, the results show that the two-parameter model is adequate to represent the curing reaction process, the model can well describe the curing reaction process of the studied resin. The DSC curves obtained using the experimental data show a good agreement with that theoretically calculated. The research results will provide theoretical basis for the choice of manufacturing process and the optimization of processing window.

Key words:  Curing kinetics, epoxy resin, heat-resistant, modification, organosilicone, polyamide,
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Cite this Reference:
Hua Li, Hongkai Wang and Xingli Jiao, . Study on Curing Kinetics of Heat-resistant Flexible Polyamide Modified Epoxy Resin Adhesive . Research Journal of Applied Sciences, Engineering and Technology, (12): 1143-1147.
ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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