EPS resin production process
The one-step and two-step production methods mentioned above, the difference between them is the method to add foaming agent: The styrene polymerization and foaming agent impregnation are operated in the same reacting kettle, that is called one-step method : While the styrene polymerization and foaming agent impregnation are separately operated in different kettle ,that is called two-step method.
The following is the process flow chart of one-step and two-step,1-1,2-2 |