| 摘要 |
PURPOSE: Provided is a method for a bioactive transparent film which can be used in agricultural field such as green house, to prevent horticultural or agricultural plants and the like from being damaged by insects or diseases and provide healthy effects for a person working inside the green house, due to the bioactive waves of a certain intrinsic wavelength from various inorganic elements included in the film. CONSTITUTION: The method for preparing a bioactive transparent film comprises the steps of: blending 60% of a mixture of ferrous oxide, magnesium, aluminum, silicon, potassium, sodium, copper, and the like or 50% of natural aluminum silicate with 30% of charcoal and extracts made from bamboo; incorporating the mixed blend into porous silica to provide bioactive material; mixing 30% of the bioactive material with 47% of ethylene vinyl acetate, 18% of surfactant, and 5% of ultra-red blocking agent and kneading the mixture at 160deg.C for 30 minutes; and mixing the resulting mixture with resin to give a transparent film. The film also can be produced in an alternative method comprising the steps of: mixing 18 % of bioactive material in which 20% of natural aluminum silicate and 10% of charcoal made from bamboo are mixed, 18% of surfactant, 5% of ultra-red blocking agent, and 47% of ethylene vinyl acetate; and kneading the mixture at 160deg.C for 30 to 50 minutes.
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