Mersalen MDPE ReCompound
Suitable for Demanding Extrusion Applications
Recycling specialist APK AG, Merseburg, Germany. has developed a technology capable of producing particularly high quality recycled regranulates from post-consumer film scrap originating from Germany's Dual System collection scheme (DSD).
This scrap, known as fraction 310, consists of pieces of PE and PP film with a greater or lesser degree of contamination which is supplied to APK in bale form. The products leaving the elaborate cleaning, separation and recycling process are Mersalen LDPE ReCompounds and now also the particularly readily processable MDPE ReCompounds in pellet form. Thanks to their good properties with high batch-to-batch consistency and continuous availability, these products are proving to be in high demand as raw materials for a variety of applications.
Mersalen MDPE in particular, which has been available since mid 2015, offers processing and service characteristics which have not previously been achieved with post-consumer recycled material. As a result, applications include blown films with thicknesses of 50 µm upwards which are used, among other things, for producing barrier membranes for construction, heavy duty films and recycling sacks. Further applications include sturdy, possibly coextruded, flat films which can be converted for example into dimpled sheets for construction, non-pressurised piping and extrusion-blow molded parts such as containers with a capacity of up to 1.5 liters.
Particular advantages for HDPE processors using this MDPE ReCompound as an admixture in film extrusion are the higher achievable draw-off speeds in comparison with pure HDPE, a wider processing window and processing temperatures which may be as much as 25°C lower, so helping to cut manufacturing energy inputs. Mersalen MDPE ReCompounds thus complement Mersalen LDPE grades, which are primarily processed by injection and compression moulding into pallets and thick-walled moldings such as grass pavers but are also suitable as an admixture in the production of films with thicknesses of >180 µm.
Mersalen LDPE and the new MDPE ReCompounds are part of APK's wide range of PP and PE ReCompounds and regranulates, which are available in both standard and custom grades.
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