| 摘要 |
PURPOSE: A manufacturing method of high concentration dissolved oxygen generating material for cultivation of orchid and flowers is provided to manufacture high concentration oxygen generating material which is simply used compared to conventional oxygen supplying method and does not generate noxious gases, and to which chitosan is added to smoothen crop growth and improve crop situation. CONSTITUTION: The manufacturing method of high concentration dissolved oxygen using oxygen generating material is characterized in that the oxygen generating material comprises principal constituents including oxygen generating agent, promoter, supporting agent and chitosan, the oxygen generating agent comprises organic oxygen generating agent formed of one or more organic peroxides selected from the group consisting of ketone peroxide, diacyl peroxide and hydroperoxide and inorganic oxygen generating agent formed of one or more inorganic hydrates selected from the group consisting of diammonium peroxodisulphate, disodium peroxodisulphate, potassium perchlorate, potassium persulfate, potassium chlorate and sodium chlorite, the supporting agent for supporting the promoter is formed of a surface reformed silica obtained by reacting porous silica having micropore diameter of 35 Å and surface area of 900 m¬2/g with 3-aminopropyl triethyl silane, the promoter comprises potassium iodide, sodium iodide or a mixture thereof, the oxygen generating material comprises 5,000 to 20,000 parts of water, 2 to 5 parts of oxygen generating agent, 0.2 to 0.7 part of promoter and 5 to 10 parts of chitosan, and wherein the oxygen generating material emits 10.8 to 23.2 ppm of oxygen.
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