PBAT granulator is a kind of equipment used to make polybutylene glycol succinate (PBAT) raw materials into granules. PBAT is a biodegradable polymer material with excellent degradable properties and good physical and mechanical properties. PBAT granules are widely used in many fields, such as packaging materials, mulch films, soil remediation materials, plant protection films, etc.
The effectiveness of PBAT granulators mainly depends on the quality of the equipment, the setting of process parameters, and the quality of raw materials. A high-quality PBAT granulator ensures that the pellets are uniform, consistent and have a regular shape. This is very important to ensure the smooth progress of the subsequent processing process and the stability of product quality.
The quality of PBAT's raw materials also has a great impact on the granulation effect. Generally speaking, the volatile content of the raw material should be low and the particle size should be uniform, which is conducive to the preparation of high-quality PBAT particles.
The setting of the process parameters of the PBAT granulator is also very important. The process parameters include feeding speed, granulation temperature, granulation pressure, etc. These parameters are set according to the characteristics of the PBAT and the desired particle properties. Generally speaking, the appropriate feeding speed can ensure the uniform particle size, while the appropriate granulation temperature and pressure can ensure the physical and mechanical properties of PBAT particles.
A common method for PBAT pellet preparation is melt granulation. In this method, the PBAT raw material is first heated and melted by an extruder, then extruded and sheared by the granulator's granulation screw, and finally the extruded particles are cut to a specified length by a cutting device. The melt granulation method can make the particle shape more regular, and it is conducive to the volatilization of water and the melting of thermoplastic materials.
In addition to the granulation effect of the granulator, it is also necessary to consider the subsequent application effect of PBAT particles. The physical and mechanical properties, melting properties, degradation properties and compatibility with other additives of PBAT particles have a great impact on the properties of the final product. Therefore, these factors need to be fully considered and controlled during the granulation process to ensure that the final PBAT pellets can meet the needs of the specific application.
PBAT granulator