Three Methods For Effectively Discriminating Plastic Hollow Sheets Doped With Old Materials

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Today we would like to share with you three methods for effectively discriminating plastic hollow sheets doped with old materials. Please see the following points.

Hollow Plastic Building Templates

1. The thickness of the thick and straight vertical rib Hollow Plastic Building Templates is good, the erect tendons are thin, and the quality of the plastic hollow board which is tortuous is not good.

2. As a result, more and more manufacturers have chosen to co-extrude UV layer (UV layer) hollow sheets. At present, many manufacturers claim that their products have been extruded with a UV layer, and the ability of the anti-fog layer to recognize ultraviolet rays is a key factor in the aging of the plates. But whether the UV layer can really play the role of consumers remains to be further studied.

A good plastic hollow plate UV layer can be measured not only by thickness, but also by its uniform coextrusion level, and the thickness of the UV layer and the uniformity of the hollow plate. For the market, some bottoms are not added with any UV data, but are falsely filled and co-extruded with a UV layer hollow plate representation.

3. If there are black spots and crystal dots on the hollow plate, it indicates that it contains a large amount of impurities, mainly whether there are impurities in the hollow plate. The more impurities, the more old materials are marked. A good plastic hollow board must be clean and transparent. The quality of the material can also be distinguished by studying the fluidity of the hollow plate melt. Due to the long molecular chain of the carbonate resin, repeated high-temperature melting destroys its molecular structure, from macromolecules to small molecules.

The old material should melt from the beginning, its molecular chain will crack, and then flow. Therefore, in theory, the better the fluidity of the data in the molten state, the worse the quality of the data. Although the method is theoretically simple and easy to understand, it is still difficult to operate. Users without test conditions can send the hollow board material to a professional agency for inspection.

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