Filler masterbatch refers to the granules and powders obtained by mixing and kneading various additives and fillers with a small amount of carrier resin in the process of plastic processing and molding for the convenience of operation. The main component of filler masterbatch is filler, which is mainly used for the processing and molding of polyolefins (polyethylene and polypropylene), and is also called polyolefin filler masterbatch.

Calcium carbonate filler masterbatch is a particle with a volume similar to the base resin of plastic products made by mixing calcium carbonate with carrier resin and mixing and granulating. It has a wide range of application value in the plastics industry. Before masterbatch processing, the surface of calcium carbonate powder is modified to increase its dispersibility, which can greatly improve the crosslinking with the resin. However, there are still 5 issues that need to be paid attention to during the production of calcium carbonate filler masterbatch.

Factors affecting plastic shrinkage include plastic species, molding conditions, mold structure, etc. Different plastics have different shrinkage rates. In addition, the shrinkage rate of plastics has a lot to do with the shape of the plastic part, the complexity of the internal structure, and whether there are inserts.

1. Oil absorption value 2. Particle size and distribution 3. Filling volume 4. Thixotropy 5. The combination of fillers

Five issues to be aware of during the production of calcium carbonate filled masterbatch:1. Surface modification treatment of calcium carbonateIn order to uniformly disperse the calcium carbonate particles in the filler masterbatch into the base plastic, the calcium carbonate particles must be compl

Two stage high filler masterbatch extruder