We offer you the option of designing the discontinuous mixing process to make it reproducible, clean and cost-efficient. Suitable methods include
- predispersed polymer-bound accelerators
- liquid accelerators in the form of dry liquids
- oil-coated accelerators
Instead of the pure powders or liquids, polymer-bound preparations or dry liquids avoid material losses and deposits on the weighing equipment or in the feed chute of the internal mixer. The predispersed form further enhances the chemical activity of the active ingredients so that in many cases the quantity of material is reduced. Predispersed, strained crosslinking agents and accelerator masterbatches also avoid unwanted surface defects or uneven crosslinking, thus reducing the scrap rate.
During "acceleration" on the roll mill some additives in pure powder form behave almost like release agents and do not bind with the sheet. The result is material losses to the extraction system or catch pan. However, this is not the case with polymer-bound accelerators or oil-coated accelerator pastes. Here paste-like zones form immediately on the sheet and these are immediately distributed and incorporated.
The low-dust accelerator is placed where it belongs: in the blend.