ALL-R-PS

XPS production: Generally, the MI of PS is required to be within 3 to 20 g/10 min; 
More suitable:  MI  5-15
CO2-XPS production: Generally, the MI of PS is required to be within 5 to 15 g/10 min.

More suitable:  MI  5-10

The molecular weight of polystyrene determines the MFR value:

the higher the molecular weight, the lower the MFR.

The molecular weight of polystyrene determines the MFR value: the greater the molecular weight, the smaller the MFR.

The glass transition temperature Tg rises, and the viscosity increases (fluidity decreases),

The density of XPS board increases.

Different physical and mechanical properties.

In practical applications, uniformly blending recycled polystyrene particles of different molecular weights (MFI)

can enhance the physical properties of XPS boards, reduce the technical difficulty of production,

and effectively lower production costs.