What are the ingredients of the filling masterbatch?

The use of filler masterbatch has become a modern production can not be used in a chemical material, usually in production, we know what formula in the production of filler masterbatch, following the small woven to understand it.

1. The main filler used for filling masterbatch is heavy calcium carbonate, followed by talc powder, kaolin, wollastonite powder and other inorganic fillers. For any inorganic filler, particle size and particle size distribution is the main scientific and technological index. Generally, the smaller the particle size and the narrower the distribution, the better the filling effect. Purity is another major technical index of inorganic fillers. The less impurities, the better the purity.

2. The application performance and cost of carrier resin-filled polyolefin masterbatch depend on the carrier resin. Generally, the carrier resin content is 10%-20% according to the use of the masterbatch. The carrier resin used for polyolefin filling masterbatch should have good compatibility with the filled plastic matrix resin. From this point of view, the matrix resin is the best choice for the general carrier resin. In addition, the melting point and melt fluidity should be considered when choosing the filling material carrier. The melting point of the carrier resin should not be higher than that of the matrix resin.

3. Auxiliaries for polyolefin filled masterbatch are important dispersants and surface treatment agents. The effect of dispersant is to improve the processing fluidity of masterbatch, which is conducive to more uniform dispersion of masterbatch in the matrix resin. The commonly used dispersants are: white oil liquid paraffin, paraffin, di-octyl phthalate bop, low molecular weight polyethylene wax and stearic acid, etc. The important properties of commonly used dispersants can be selected according to the performance characteristics of fillers and carrier resins. Surface treatment agent can change inorganic filler.