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Reasons why Melt-blown fabric becomes brittle after production

Reasons why Melt-blown fabric becomes brittle after production

(Summary description)1. If the aspect ratio of the spinneret of Melt-blown fabric is small, the holes are thick and short. After the polymer is sprayed, the fibers are thicker, the gaps are larger, and the water absorption is stronger for a long time , so the Melt-blown fabric is neither soft nor brittle.

Reasons why Melt-blown fabric becomes brittle after production

(Summary description)1. If the aspect ratio of the spinneret of Melt-blown fabric is small, the holes are thick and short. After the polymer is sprayed, the fibers are thicker, the gaps are larger, and the water absorption is stronger for a long time , so the Melt-blown fabric is neither soft nor brittle.

Information

1. If the aspect ratio of the spinneret of Melt-blown fabric is small, the holes are thick and short. After the polymer is sprayed, the fibers are thicker, the gaps are larger, and the water absorption is stronger for a long time , so the Melt-blown fabric is neither soft nor brittle.

Melt-blown fabric suppliers China

The processing method of Melt-blown fabric requires that the molecular weight distribution of the melt-blown material be as narrow and uniform as possible. A high-temperature gel chromatography for testing the molecular weight distribution of Melt-blown fabric, the test temperature range is from 30°C to 220°C, and it has the function of automatic sample injection to reduce the influence of human factors.

This high-temperature gel chromatography for testing the molecular weight distribution of Melt-blown fabric is equipped with three detectors of the time difference, viscosity, and light scattering, which solves the problem of molecular weight and molecular weight distribution testing of most polymers at this stage.

2. The winding device of Melt-blown fabric is too short, there is residual heat in the winding process, and it cannot be cooled quickly. After a few days, the PP material becomes brittle after crystallization (some people add a crystallization nucleating agent as a softener).

3. Packaging. If the Melt-blown fabric absorbs too much water, it can easily become brittle. Generally, Melt-blown fabric will be wrapped with stretch film and sealed.

Through the above introduction and analysis of the causes of brittleness after producing Melt-blown fabric, hope it helps you.

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