How to calculate the foaming ratio of EPE pearl cotton?How to calculate the foaming ratio of EPE pearl cotton?
EPE pearl cotton generally uses gram weight or density (kg / m3) to distinguish weight and model. But some customers also use the term "foaming ratio" in their communication. What is the "foaming ratio" of pearl cotton? The "foaming ratio" here refers to the "foaming ratio" of plastic raw material particles, such as polyethylene (LDPE) and other foamed plastic products (EPE) to be manufactured. As for "foaming ratio", it is the proportion of volume increase of finished products compared with raw material particles.
As you know, the main raw material of pearl cotton is LDPE plastic particles, so it is a good understanding of this sentence, that is, the concept of how much proportion LDPE foam to EPE pearl cotton increases.
LDPE density = 0.92g/cm3 (non foaming plastic particles)
Do = EPE foam density = w / v = w / L * w * H (density = weight / volume = weight / length * width * height)
EPE foam ratio = 0.92/do = 0.92/epe foam density
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