摘要:
The present invention relates to: a composition and a cured article comprising inorganic particles together with an alkoxysilyl-based epoxy compound which does not require a separate silane coupling agent and exhibits outstanding heat resistance, and more specifically a low coefficient of thermal expansion (CTE) and a high glass transition temperature or no Tg in a composite material; and a use for same. The present invention provides: inorganic particles and an alkoxysilyl-based epoxy compound; and an epoxy composition comprising an epoxy compound, inorganic particles and a curing agent; and a cured article of same and a use for same. A composite article of the composition comprising the inorganic particles and the alkoxysilyl-based epoxy compound of the present invention exhibits outstanding heat resistance, which is to say a low CTE and high glass transition temperature or no Tg, as the chemical bonding efficiency is improved during epoxy composite formation, not only due to chemical bonding of a filler material and the alkoxysilyl groups in the alkoxysilyl-based epoxy compound but also due to chemical bonding between the alkoxysilyl groups of the alkoxysilyl-based epoxy compound.