New Materials Co., Ltd. Zhejiang Jin Choi science about the use of masterbatch special precautions:

First, the use of special masterbatch technology requirements

1. When using a dedicated masterbatch coloring plastic products, injection molding machine the best selection of screw, because otherwise plasticizing, mixing poor resulting in uneven coloring.

2. Increase back pressure extrusion, to improve the mixing effect of the screw, you can make special masterbatch dispersed more evenly.

3. dignified, elegant and advanced color melamine colors, flashing colors, they must in order to show its effect in the mold very bright premise.

4. The production process, if found to adhere to the specific masterbatch hopper walls, electrostatic's sake, the hopper can be ground to eliminate static electricity, does not affect the process issues.

Second, the equipment requirements

When an application-specific masterbatch, in the mold of the open space of the ribs or prone to confusion caused by the flow of non-uniform dispersion, mold design should be avoided. Compared to injection molding and extrusion, extruder screw L / D of large, after adding the filter more improved back-pressure, so good dispersion.

When injection molding, injection slow, high back pressure is good dispersion. In order to ensure uniform dispersion masterbatch specific, we need to add a static mixer screw tip.

Third, the use of special masterbatch

1. Add in strict accordance with the proportion of private enterprises to provide masterbatch compounding.

2.PET, ABS, PA, PC as a carrier of special masterbatch, after a period of storage will absorb moisture, should be dried before use.

3. dedicated masterbatch mixed colors, you need professional guidance. Otherwise, change the color and shade may occur.

4. Dedicated masterbatch and other additives will react, when used to pay attention.