Study On Curing Kinetic And Its Computer Dealing System

The paper introduces the history and importance of the curing kinetic studies, then the author gives the analyses to several important curing kinetic methods by his experience of dealing with curing data and information from relative literatures. The author also expatiates on the application premise, suppose condition and curing model to every curing method.The author makes a simple curing dealing software by VBA language. With the help of the software, the user can deal with the data conveniently based on the Kissinger method; however, complex function is not reachable because of the VBA language's problem itself.The emphasis of this paper is put upon a VB program "curing kinetic operating system" programmed by the author with ten-thousand-lines codes. The software realized the aim of design by using some new methods and new arithmetic with clear program structure and friendly user interface. The software provides six methods to its user, including Kissinger method. Ozawa method, Freeman-Carroll method, Zavkovik method, Extrapolate method and Satava-Sestak method. Users can choose appropriate methods from them and use them to deal with different curing systems. On the other hand, there are some useful tools in the software, such as plot tool and phase fit tool etc.The software, Curing kinetic dealing system, was applied to analyze Epoxy/TOA/Org-MMT curing system and Epoxy/DETA/Org-MMT curing system. Both initial curing temperature and final temperature of two systems moved to the peak temperature of the systems with addition of Org-MMT, and the peak temperatures were kept constant. As to Epoxy/TOA/Org-MMT system, the reaction order was 0.9 and active energy was 66kJ/mol by Kissinger method; and a similar result was obtained by Ozawa method. The curing reaction was controlled clearly by diffusion mechanism in the later stage of curing reaction without addition of Org-MMT, which leads to the increment of active energy with extend of curing; as to the curing system with addition of Org-MMT, the value of active energy was always kept the same level, which can be explained by the catalytic function of amine salt inserted in the galleries of Org-MMT.