NOVEL EPOXY COMPOUND, MIXTURE, COMPOSITION, AND CURED PRODUCT COMPRISING SAME, METHOD FOR PREPARING SAME, AND USE THEREOF

摘要

The present invention relates to a novel epoxy compound, a method for preparing same, a composition and cured product comprising same, and use thereof, wherein the compound shows excellent heat-resistant properties - specifically, a low thermal expansion property and a high glass transition temperature increasing effect (including Tg-less which does not show a glass transition temperature), a flame retardant property and processability - specifically, a thickening-control property without requiring a separate silane coupling agent, and has improved brittleness in a complex. According to one aspect of the present invention, provided are: an epoxy compound having at least one unreactive silyl group, alkenyl group or combination thereof together with at least two epoxy groups and at least one alkoxysilyl group; a method for preparing the epoxy compound through alkoxysilylation and alkylsilylation; an epoxy composition comprising same; and a cured product. The epoxy composition comprising the novel epoxy compound of the present invention exhibits enhanced heat-resistant properties - i.e., a glass transition temperature increasing effect and a reduced CTE of the epoxy complex due to the formation of a chemical bond through a chemical reaction between the alkoxysilyl group and a filler and a chemical reaction between alkoxysilyl groups in the complex and/or a cured product. Further, the cured product of the epoxy composition of the present invention exhibits an excellent flame retardant property due to introduction of the alkoxysilyl group. In addition, thickening of the epoxy composition of the present invention can be easily controlled during a curing reaction. Furthermore, the cured product of the epoxy composition exhibits improved brittleness.