Filler Masterbatch Production

Plastics are purely polymer chains without any other components. Filler masterbatch, on the other hand, is a mixture that consists of multiple ingredients. Plastic is one of the most important components of calcium carbonate masterbatch that serves as the carrier. Another vital element accounted for the vast majority of plastic filler, approximately 70-80% of the mixture, is calcium carbonate powder. Besides base plastic and CaCO3 powder, filler masterbatch also consists of pigments powder and several additives depending on the customer's requirements.

The filler used in polyolefin filler masterbatch is mainly calcium carbonate, followed by inorganic fillers such as talc, kaolin, calcium powder, and so on.

The Role of Filler Masterbatch

Although plastic has a lot of excellent properties but compared with metal materials, there are many shortcomings, some of the comprehensive performance requirements of high fields, a single plastic is difficult to meet the requirements. Therefore, the purpose of using filler masterbatch to blend modified plastics is as follows.

1. Improve the comprehensive properties of plastics.

2. Improve the mechanical properties of plastics, such as strength, low-temperature toughness, etc.

3. Improve the heat resistance of plastics. Most plastics do not have a high thermal deformation temperature. For some parts that work at a certain temperature, general-purpose plastics are not suitable.

4. Improve machining performance. For example, PPO is poor in molding, adding PS modified its processing liquidity greatly improved.

5. Reduce water absorption and improve the dimensional stability of products. Such as polyamide water absorption is larger, resulting in product size changes.

6. Improve the burning resistance of plastics. Most plastics belong to inflammable materials, which have low safety when used in electrical and electronic equipment.

7. Reduce the cost of materials. Plastics, especially engineering plastics, are more expensive. The cost of materials is reduced and the molding property is improved by blending general plastics with engineering plastics.

8. Realize the function of plastic, improve its use performance, such as the conductivity of plastic small for some need to prevent static electricity, conductive use, can be mixed with a conductive polymer, to obtain anti-static function, conductive function and electromagnetic shielding function of plastic materials, to meet the requirements of electronics, home appliances, communications, military and so on.

Conclusion

In short, using filler masterbatch to blend modification, can improve the comprehensive performance of plastic, in the case of relatively low investment increase the varieties of plastic expansion of the use of plastic, reduce plastic adult cow ‘head now plastic high-performance and intensification, functionalization, specialty, and seriation, promote the development of plastic industry and high polymer material industry.

The best processing equipment for making a filled masterbatch is a co-rotating twin screw extruder. The advantages of this machine are continuous production, stable quality, high production efficiency, low energy consumption, low labor intensity of workers, and a good operating environment.

Three Common Ways of Feeding

1.Volumetric feeding accuracy: 3-5%

1. All materials are weighed according to the formula ratio.

2. Put into the high speed mixer and mix for 5-10 minutes.

3. The mixed materials are put into the screw feeder.

4. Transfer the mixed materials to the hopper of the volumetric feeder through the screw feeder.

2. Loss in weight feeding (automatic, high-precision feeding system) accuracy: 0.3-0.5%

1. All raw materials are put into the feeding station placed on the ground.

2. It is sucked into the material hopper of each component through a vacuum loader.

3. The raw materials will be automatically and continuously fed into the main feeding hopper of the extruder through the loss-in-weight feeder according to the formula ratio, set time and flow rate.

3.Batching scale feeding (automatic, high-precision feeding system) accuracy: 0.3-0.5% Gravimetric Batch Blender

1. All raw materials are put into the feeding station placed on the ground.

2. Sucked into the feeder of each component through the vacuum loader.

3. The raw materials will be discharged into the metering hopper according to the ratio of the formula. After all the materials reach the metering hopper, they will be automatically discharged into the mixing section and mixed 5-10 minutes.

4. Put the mixed materials into the screw feeder.

5. Transfer the mixed materials to the hopper of the volumetric feeder through the screw feeder.