Modified PP For Melt-blown Nonwoven Fabric

Product Description

How Impurity Content Impact？

The meltblown process uses a die with a small diameter spinneret, and if the polymer raw material contains a lot of impurities, it is easy to cause the spinneret blockage. Therefore, improving the production environment of polymer slice raw materials, optimizing the slice production process, and reducing the slice contamination can effectively extend the replacement cycle of meltblown die head, reduce energy consumption, and reduce product production costs.

Polypropylene is one of the most used polymers in the meltblown process. The first application of meltblown process is the common fiber grade polypropylene raw material with high molecular weight and low MFI, usually only 12g/10min. This polypropylene must be degraded by the high temperature and shear action of the screw extruder during meltblown.

With the advancement of technology, the MFI of 12 polypropylene was soon replaced by MFI 35, while the emergence of polypropylene for meltblown processes, with MFI up to 1500. polypropylene MFI increases to reduce the working temperature of the screw extruder, improve the melt flow rate, help reduce excessive degradation of polymer formation, extend the life of the meltblown die, reduce energy consumption, while giving greater flexibility in the selection of additives and gives greater flexibility in the choice of additives.

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