HARD COATING AGENT FOR MODIFICATING THE SURFACE OF TRANSPARENT PLASTICS AND METHOD FOR PREPARING FOR THE SAME

摘要

PURPOSE: A hard coating agent for modifying a transparent plastic, and a manufacturing method thereof are provided to secure the transmittivity of the hard coating agent, and to improve the surface hardness and the adhesive force between the transparent plastic. CONSTITUTION: A manufacturing method of a hard coating agent for modifying a transparent plastic comprises the following steps: producing alumina/zirconia complex sol; mixing a silane coupling agent, metal alkoxide and a solvent with the alumina/zirconia complex sol, and stirring; and inserting a cross-linking agent to the mixture. The transparent plastic is polymethylmethacrylate. The silane coupling agent is either glycidoxypropyl trimethoxysilane, or a hybrid silane coupling agent mixing glycidoxypropyl trimethoxysilane and methacryloxypropyl trimethoxysilane.