1. lubricated , agglomerate with compact and orderly cross - section , which has good mechanical properties and
2. on calcium carbonate , talc , barium sulfate , as the inorganic powder has very good wetting action
3. never die device is deposited , the downstream product ( blown film , wire drawing ) of the surface brightness , relatively low molecular weight
4. , increase filler of lubricity , improvement of the filling in of the uniform dispersibility , fluidity and improve the processing of the masterbatch .