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2P-232 Curing Behavior of Epoxy Resins by Mercaptan Hardener at Low Temperature
강호용,임종태,석웅철,권세진,강주희,송호준,이상국 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
Adhesives are composed of epoxy resins, hardener and catalyst. Epoxy resins are important thermosetting polymers widely deployed in industrial applications including adhesives, coatings and electronics due to their high utility. The curing process of the epoxy resins can be carried out using a wide range of curing agents, such as amines, anhydrides, polyamides, phenol form aldehyde resins and polysulfides. In order to increase the productivity, it is required to epoxy adhesives rapidly cured at a low temperature. At low temperatures, the curing reaction of epoxy and mercaptan is faster than the reaction of epoxy and amine. In this paper, we studied the curing behaviors of diglycidyl ether of bisphenol A (DGEBA) with modified mercaptan hardener. We synthesized mercapto-copolymer by the sol-gel method for fast and low temperature curing.