Problems in the use process are also common, and there are also problems in the production process. It is very common, so today we will take a look at the common problems of masterbatch?
1. Under the sunlight, there are stripes of pigment bands in the product. This problem needs to be considered from the two aspects of plastic physical and mechanical properties and plastic molding process:
1. The temperature of the injection molding equipment is not well controlled, and the masterbatch cannot be fully mixed with the resin after entering the mixing chamber.
2. The injection molding machine does not add a certain back pressure, and the mixing effect of the screw is not good.
3. Dispersion of color masterbatch is not good or resin plasticization is not good.
The masterbatch process can be debugged as follows:
1. Raise the temperature of the mixing chamber close to the material outlet slightly
2. Apply a certain back pressure to the injection molding machine.