| 摘要 |
PURPOSE:To decrease the amt. used of chlorofluorocarbon and enhance the thermal insulation properties by mixing specific premix component with a surface-treated hydrophobic zeolite and an isocyanate component, and reacting and foaming the mixture. CONSTITUTION:A polyether, a foam stabilizer, water. and a chlorofluorocarbon blowing agent are mixed to give a premix component, which is mixed and reacted with a hydrophobic zeolite surface-treated with a silane compd. having a reactive silyl ground and an isocyanate component comprising an org. polyisocyanate to produce a foamed insulation material. |
