| 摘要 |
<p>Provided is a polyurethane foam panel obtained by mixing and reacting a polyol composition comprising a polyol compound and water as the foaming agent and a polyisocyanate component, wherein the starting material is a polyol compound comprising a polyether polyol (A) that is a polymer of alkylene oxide and has an average of between two and four functional groups and a weight-average molecular weight between 3,000 and 8,000 and a short glycol (B) having a molecular weight of 250 or less, the water content of the polyol composition is between 20 and 100 parts by weight per 100 parts by weight of polyol compound, and the direction of thickness of the panel and the direction of foaming of the cells in the foam are adjusted to become virtually perpendicular. Moreover, the invention provides a polyurethane foam panel that uses the above-mentioned polyol compound and the above-mentioned water content, wherein the isocyanate index of the polyol composition and polyisocyanate component is 30 or less.</p> |
