Taking homopolypropene as the base material, two kinds of foaming agent of our company were added respectively to extruded free foaming, and the adding ratio of foaming agent was 2.5%.
|Haozhi foaming agent||The processing temperature（℃）||The density of foam（g/cm³)|
|1 area||2 area||3 area||4 area||5 area||6 area||7 area||Opening mould|
Bubble hole section:
Free foaming agent to squeeze out a bubble hole section 1: bubble hole diameter is about: 70-150 microns
No. 2 foaming agent free extrusion bubble hole section: bubble hole diameter is about: 50--100 m