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The meaning and basic role of fillers
| Release time: 2015-4-7 |
| Filler refers to the material filled in other objects. |
The filler makes the material viscosity increase, especially the fiber filler makes the viscosity increase obviously. The fillers before addition need to be dehydrated to avoid consuming part of the isocyanate. It must be noted that the generation of carbon dioxide will cause the resin to foam and affect the physical properties of the polyurethane resin. In order to speed up the wetting speed of fillers and reduce the viscosity of the system or add more fillers to polyurethane resins, sometimes we need to add wetting and wet dispersants to the resin.