CARBON DIOXIDE ADSORBENT, FOAMING HEAT INSULATING MATERIAL, MANUFACTURE OF FOAMING HEAT INSULATING MATERIAL AND HEAT INSULATING BOX BODY

摘要

PURPOSE: To improve foaming heat insulating performance by integrating a carbon dioxide adsorbent being foamed into a hard urethane foam to remove carbon dioxide in the hard urethane foam by adsorption. CONSTITUTION: In a carbon dioxide adsorbent 1, calcium hydroxide is impregnated with a 0.01mol. equivalence of moisture per the calcium hydroxide and a vinyl acetate resin is formed as film by a wet type spray coating. A premixing component and an isocyanate component are mixed and stirred up using a high pressure foaming machine with a specified number of blending parts and injected into a box body hollow part 5 made up of an inner box 3 and an outer box 4 from a delivery head 2 through an injection port 6. The carbon dioxide adsorbent 1 is arranged previously at a box body flange part 7 below the injection port 6 and material delivered from the delivery head 2 entrains the carbon dioxide adsorbent 1 to fill the box body hollow part 5 being mixing integral. The urethane foam 7 filled is hardened with the passage of time to obtain a heat insulating box body.