| 摘要 |
Provided is a polyisocyanurate foam prepared by polymerizing and foaming a composition including a polyol-based compound, an isocyanate-based compound, and a solid flame retardant, wherein the polyol-based compound has a viscosity of 1,000 to 100,000cps at 25°C. Also, a manufacturing method of the polyisocyanurate foam comprises the steps of: (a) mixing and stirring the polyol-based compound having a viscosity of 1,000 to 100,000cps and the solid flame retardant; and (b) polymerizing and foaming polyisocyanurate by mixing and stirring an isocyanate-based compound with a mixture which is obtained from the step (a). |
