To apply expandable microspheres in microcellular PU foam, follow these steps:<\/p>\n\n\n\n
Waytop\u00a0microspheres, such as Waytop\u00a0DU, can be pre-mixed with the polyol or mixed with a plasticizer and used as a liquid masterbatch added directly to the mixing head. It is recommended to add the microspheres separately as a liquid masterbatch to avoid premature expansion in the polyol.<\/p>\n\n\n\n
Ensure the temperature of the mold and polyol is optimized for the desired foam structure and skin formation.<\/p>\n\n\n\n
Adjust the curing speed of the system by selecting an appropriate catalyst. A slow catalyst allows the microspheres time to expand before the curing of the PU system starts.<\/p>\n\n\n\n
By incorporating expandable microspheres like Waytop\u00a0DU, you can achieve a significant reduction in foam density, leading to lighter end products.<\/p>\n\n\n\n
The addition of microspheres enhances the foam structure, resulting in a more uniform and consistent cellular morphology.<\/p>\n\n\n\n
Despite the density reduction, the mechanical properties of the foam can be maintained or even improved, providing a balance between weight reduction and performance.<\/p>\n\n\n\n
The use of microspheres can promote skin formation with improved abrasion properties, enhancing the durability of the foam product.<\/p>\n\n\n\n
By carefully applying expandable microspheres in microcellular PU foam, you can achieve a lightweight, structurally sound foam with enhanced properties suitable for various applications.<\/p>\n\n\n\n
For more applications, please check our application sections:<\/p>\n\n\n\n