How to solve the odor problem of PE flame - retardant pipes?

Nowadays, customers have increasingly higher requirements for products, which also leads manufacturers to have stricter demands on the odor and VOC (Volatile Organic Compounds) of flame-retardant pipes. So, how can we completely solve the odor problem of flame-retardant corrugated pipes? The reason why PE pipes have an unpleasant smell is that the raw materials are rather miscellaneous. The decomposition of small-molecule materials in the raw materials, the additives added to the plastic products, or the recycled materials will all cause the PE pipes to carry the smells of ethylene, hydrogen sulfide, sulfur dioxide, amines, ammonia, or other unpleasant odors. 

In response to this, the screening of resins, the selection of fillers, the combination of processing aids, the molding, and post-processing techniques are all matters that need to be paid attention to. In addition, odor removers can also be added during the processing.