LOW-REFRACTIVE HOLLOW COMPOSITE, PROCESS OF THE COMPOSITE AND COATING SOLUTION CONTAINING THEREOF

摘要

PURPOSE: A hollow composite, a method for manufacturing the same, a coating solution including the same, and an anti-reflective film using the coating solution are provided to obtain anti-reflective characteristic and anti-fingerprint characteristic. CONSTITUTION: A hollow composite includes silica and metal fluoride. The average diameter of the hollow composite is between 5 and 500nm. The hollow composite is represented by metal fluoride (MF)_a/silica (SiO_2)_b. a and b are the molar ratio of the metal fluoride and the silica. a is between 0.01 and 0.99, and b is between 0.01 and 0.99. The metal fluoride is alkali metal fluoride or alkali earth metal fluoride. The thickness of the hollow composite is between 5 and 50nm. A method for manufacturing the hollow composite includes the following: the composite sol of silica-metal fluoride is prepared(s110); the composite sol is reacted with the sol of hydrotalcite to form inorganic particulate composed of the shell of the silica-metal fluoride and the core of the hydrotalcite(s130); and the hydrotalcite is eliminated from the inorganic particulate to form the hollow composite of the silica-metal fluoride(s140).