FUNCTIONAL CAPSULE WITH PHOTO-DEGRADABLE ACTIVITY AND ENHANCED ANTIBACTERIAL AND STERILIZING ACTIVITY, AND PROCESS FOR PREPARING THE SAME

摘要

PURPOSE: A capsule with photo-degradable activity is provided to which self-purification capacity is given to emit core material slowly and consistently according to degradation of shell material by photo-degradable material and completely degrade organic matter, and a process for preparing the capsule is provided. CONSTITUTION: The functional capsule is characterized in that it is prepared by encapsulating a material for forming shell of the capsule, a functional material for forming core of the capsule, a photoactive material and antibacterial inorganic nano particulate material, wherein a material for forming the shell is organic matter photo-degraded by the photoactive material, wherein a functional material for forming the core is selected from incense, dyes, pesticide, repellent and adhesive, wherein the photoactive material is an inorganic matter represented in formula below: AaDbOx, where A is one or more of elements selected from tungsten, iron, vanadium, chromium, silicon, copper, cobalt, nickel, niobium, silver, molybdenum, palladium, platinum, gold, aluminum, arsenic, bismuth, antimony, cadmium, boron, cesium, cerium, magnesium, calcium, sodium, potassium, phosphorus and manganese; D is one or more of elements selected from titanium, vanadium, zinc, cadmium, tin and zirconium; a and b represent mole ratio of respective composing elements and satisfy that b=1-a, and a is in the range of 0 to 0.999; and x is a value determined to adjust valence, wherein the antibacterial inorganic nano particulate material is nano-sized metal particle selected from gold, silver, copper and iron, wherein the functional capsule comprises 10 to 80 wt.% of a material for forming the shell of the capsule, 10 to 40 wt.% of a functional material for forming the core of the capsule, 0.0001 to 10 wt.% of photoactive material, and 0.0001 to 30 wt.% of antibacterial inorganic nano particulate material, and wherein the functional capsule is a mixture of micro-sized capsule and nano-sized capsule.