Masterbatch quality is good or bad depends on the grade selection of raw materials, the main thing is the case of powder.

First, powder fineness, simple to understand it, that the finer the powder dispersion, the better.
Second, the quality of the carrier, the carrier generally have PP, PE points, relatively speaking, PE to better than PP. Three is the number of carrier content, usually between 5 to 10%.
Fourth, the choice of additives, are generally wax with PE or PP wax, there is a mass of stearic acid.

Masterbatches for polypropylene products, the best selection of polypropylene carrier resin. Theoretically, preferably atactic polypropylene, because of its low melting point, melt flow is good, good dispersion. However, specific to the actual situation, select liquid bulk powdered synthetic polypropylene is more appropriate, because it's inexpensive, itself is powdery, easily mixed with an inorganic filler, not even in the hopper delamination.

Polypropylene as carrier, since polypropylene poor thermal stability, must be added antioxidants and lubricants. In order to make the total amount of only a few thousandths of resin additives can be uniformly distributed in the resin, the resin is preferably first mixed with various additives evenly, then a certain proportion of fillers granulated.

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