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BBQ Grill Mat
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Oprettet 16. September 2020 kl. 03:41
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The oxidized surface of the PPS fiber still exists

In particular, what needs to be opposed is that some manufacturers use PTFE impregnation to increase the actual weight of the filter material, which will harm the interests of users. In fact, the water-repellent and oil-repellent treatment on the surface of the PPS filter media is more helpful to improve the deashing function of the filter media. However, the non-sticky characteristics of PTFE itself may also enable the dust in the flue gas to 'slide into' between the filter media more easily with the flue gas pressure, resulting in an irreversible increase in the running resistance of the filter media; the second is to use PTFE To improve the deashing function of PPS filter material during dust removal.

 I think that it is completely misleading that the filter material can be immersed in the PTFE emulsion to improve the antioxidant function of the PPS filter material. It is impossible for the filter material fiber to be 'wrapped' by the PTFE emulsion once it is soaked. I hope that in the near future, we can see reports in this regard. Of course, the water-repellent and oil-repellent treatment technology on the surface of the filter material is more technically difficult than simply dipping it in PTFE emulsion.Recently, direct users and bag filter manufacturers continue to require PPS filter material or filter bag suppliers to provide PTFE impregnation post-treatment of the filter material.

The oxidized surface of the PPS fiber still exists. I have asked a lot of people why they want to PTFE coated fiberglass tape Manufacturers request PTFE impregnation treatment? Many answers are: in order to improve the weakness of the poor antioxidant function of the PPS filter material itself. Internationally, the grammage of filter media refers to the grammage without any post-processing conditions.

The filter performance that PTFE impregnation treatment may improve is: First, it can make the surface of the smooth PPS fiber coarser (because the impregnation cannot be very even), and perhaps it can improve the filtration efficiency of the PPS filter material. So far, there is no application example that can prove that the PPS filter bag impregnated with PTFE has a longer service life than the PPS filter bag without impregnation treatment under the same flue gas oxidation



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