性能
典型特性 |
|
|---|---|
| % NCO | 30.9 % |
| Average Dynamic Viscosity (cP) | 600 |
| Nominal Functionality | 2.85 |
什么 VORANATE™ M 647 Polymeric MDI?
一种深棕色、中等粘度、高反应性、总异氰酸酯含量约为 30.9%、平均官能度为 2.85 的聚亚甲基多苯基异氰酸酯。它是专为生产硬质聚氨酯和聚异氰脲酸酯块状泡沫（连续和不连续）而设计的。与 VORANATE™ M 580 相比，它的官能度较高且具有中等粘度，因此非常适合用于某些连续和不连续层压工艺。增加的官能度带来改善的泡沫固化性、优异的强度性能和更佳的尺寸稳定性。
用途
- Production of both PUR and PIR (continuous and discontinuous) block foams
- Continuous and discontinuous laminating processes
优势
- Slightly higher functionality and intermediate viscosity
- Improved foam cure
- Excellent strength properties
- Better dimensional stabilities