Polyamide Scrap Recovery Service
The treatment considered in this EPD is commonly applied to polyamide 6 and 66 scraps and consists of both pretreatment – cutting and/or grinding – and a fi nal extrusion process that outputs a product in granular form, also called “cips”, suitable for use in compounding.
Grinding, outsourced to authorized companies, is often the only process performed on the material, which then ceases to be legally considered “waste” and becomes commercially available as secondary material, although still needing to undergo extrusion for its complete recovery and reuse as a fi nal product. In this physical form (small irregular flakes of various sizes), the material may not be suitable for processing in all types of extrusion plants. Indeed, the technological characteristics of extruders do not always allow them to process materials having irregular or not perfectly homogeneous sizes and shapes.
Not only does the Radici Novacips plant at Chignolo d’Isola have the right extrusion technology, but it can also perform further processing. The plant can complete the recovery process and produce secondary raw material suitable for use as a replacement of primary polymer for the production of engineering plastics. Recovery extrusion and production compounding can also occur at the same time.
The Radici Novacips case, as described above, is typical and unique at the same time. Typical, because it uses mechanical treatment, which is the most widespread method in the fi eld of plastics recovery, and, unique, because Radici Novacips’ experience, expertise and production chain synergies allow for running its recovery operations and production process even simultaneously (as described in EPD No. S-P-00707).
RadiciGroup Performance Plastics’ production activities are part of a vertically integrated production chain, in which polymer 66 from Radici Chimica and polymer 6 from Radici Fil and Radici Yarn are the inputs for the production of the Radilon product range, while waste and scrap from polymerization, spinning and compounding are used to manufacture the Heramid® range. This is an example of upstream integration in the plastics sector, which has a potentially high recovery rate and can thus be successfully extended downstream to include the recycling and re-use of plastics for the production of secondary raw materials to be used in the manufacture of second-generation engineering plastics.
The purpose of this EPD is to clarify some aspects of the process, by sharing the information and the knowledge that RadiciGroup Performance Plastics has acquired in the course of over thirty years of experience in managing the entire plastics production chain. This information is intended for whoever wants to understand the environmental contribution from the recycling and re-use of post-industrial plastic waste and scrap for the production of secondary raw materials to be used in the manufacture of second-generation engineering plastics.