알릴에스터 수지의 경화특성연구 = Curing Study of Allyster Resins by Differential Scanning Calorimetry

다국어 초록 (Multilingual Abstract)

Synthetic marbles have been developed due to the excellent heat resistance, chemical resistance, good processibility, and uncomparable toughness for many years. Thermoset resin such as unsaturated polyester or poly(methyl methacrylate) has been used and recently allyster resin which can be polymerized using dially monomer and polyol by transesterification reaction shows lot of interests. In this study, the reactivity and curing mechanism has been studied by differential scanning calorimetry followed by the selection of monomer, diol, and curing agent. Diallyl terephthalate and diallyl isophthalate were used as prepolymer and diethylene glycol and 1,3-butane diol were used as allyl monomer. Several curing agents such as dicummyl peroxide, t-butyl peroxybenzoate, t-butyl peroxy-2-ethyl hexanoate, 2-butanone peroxide, or di-t-butyl peroxide have been studied for the optimum curing process. Isothermal and dynamic differential scanning calorimetry(DSC) methods with varying heating rate were utilized and activation energy of 90.3kJ/mol for DCP and 86.6kJ/mol for TBPB were calculated by Kissinger equation. Besides, DCP and TBPB have been found to exhibit good curing results since over 100 C, the decomposition rate of curing agent was vary fast enough ti induce the brittle physical properties.