To optimally exploit the properties of recyclate fibers for structural applications, a bindered rCF tape with high fiber orientation and high intrinsic stability is produced from relatively long recycled carbon fibers (rCF).  It permits the automated manufacturing of load-optimized preforms for liquid-composite molding processes. 

Development of a Bindered LrCF Tape with High Fiber Orientation 

Verbundwerkstoffe / Werkstoffverbunde

Kohlenstofffasern / -matten

Kunststoff-Recycling

Recycling of Long Carbon Fibers 

At present, flame-retardant plastic parts past their service lifetime are predominantly used energetically. The further development of the circular economy makes it necessary to rethink materials recycling. However, this issue becomes increasingly complex wherever such additives as flame retardants, fibers, or fillers are used. 

Recycling Halogen-Free Flame-Retardant Plastics. Example: Polyamide 

Polyamide

Additive

Flammschutzmittel

Wiederaufbereitung

Secondary Raw Materials of the Future  

What kind of packaging do consumers evaluate as environmentally friendly? A study conducted in seven countries shows that consumers pay particular attention to the last stage of the packaging life cycle, e. g. compostability or recyclability. There are important differences between individual countries. 

Results of an International Comparative Study on Consumer Preferences 

Simulation Verpackung

Biokunststoffe

Nachhaltigkeit

Verpackungsmaterial

How Consumers Evaluate  Environmental Friendliness 

Together with materials manufacturer Golden Compound, Alpla Werke Alwin Lehner GmbH & Co. KG, Hard, Austria, has developed a coffee capsule that environmentally aware consumers can use with a clear conscience. The capsule is made from the material Golden Compound green. This comprises an organically based material and ground natural fibres from sunflower seed shells. The capsule and filter fleece are completely biodegradable in the garden compost within a maximum of six months, and are free from aluminium and genetically modified organisms.  Alpla provides its customers with the capsule and the garden-compostable lid. 

Organically Based Synthetic Material with Sunflower Seed Shells  

Coffee Capsule Compostable at Home 

Germany¿s plastics associations presented current country data on the material cycle of polymers in mid-October. The survey provides a comprehensive picture of the material flows from production to utilization, including recycled materials for the first time. Controversial discussions between various players along the value chain took place during a symposium that followed. 

Figures and Strategies for Circular Economy in Germany 

Verbände, Institutionen, Messen

A Change in Thinking 

Erema acquired 60 percent of a recycling machine manufacturer to further expand its range of tailor-made plastic recycling solutions for in-house applications.      

Austrian Manufacturer Expands its Product Range 

Erema Acquires Stake in Plasmac 

Even though economical use of material is a perennial theme, the needs of plastics processors change with the requirements of the times. Recycling of post-consumer packaging is a great challenge at present. An Italian manufacturer has developed a two-stage system that can produce films suitable for food contact without intermediate pelletizing. We took a look around the company headquarters. 

Direct Recycling of PET Flakes into Food-Grade Film 

Polyethylenterephthalat

Extruder

Blasfolienextrusion

Blaswerkzeuge

Flachfolien- und Plattenextrusion

Systems like a Symphony 

A new non-profit organization was created with the vision of establishing an industry platform for developing and promoting chemical recycling technologies for polymer waste across Europe. 

ChemRecEurope¿s First Step After Official Launch 

European Conference on Chemical Recycling 

Like plastics manufacturing and processing, the recycling of plastic products requires specialization to be efficient. Accordingly, a Dutch company has dedicated itself entirely to the recycling of agricultural and packaging films ¿ and invested in a machine technology, which was found along tortuous ways. 

Technical Answers to World Political Changes in Film Recycling 

Kunststoff-Aufbereitung

Schmelzefilter

Sortierer

Extrusion

Folien

From Waste Collector to the  Plastic Recycler 

Dow and Menshen present a new transformative Reverse Spout Sealing Technology that enables the production of spouted pouches made of mono-material films. This technology allows converters to address the recycling criteria for flexible packaging and can help brands meet their sustainability packaging goals.  

Reversing the Traditional Sealing Process Brought the Solution 

Kunststoffverarbeitung: Maschinen und Komponenten

Klebstoffe

Dow and Menshen bring Sustainable Design to Spouted Pouches 

With its new additives, Clariant International Ltd., Muttenz, Switzerland, aims to increase recycling rates for post-consumer waste. To achieve this, plastics must be capable of clean segregation by type and their properties and processability must be sufficiently good for the subsequent life cycle. To prevent thermal or oxidative degradation of the polymer during recycling, the antioxidants Cesa-nox can be added during the recycling process. 

Clariant at K 2019 

Recycling Is the Basis 

Gneuss Kunststofftechnik GmbH, Bad Oeynhausen, Germany, has different models of its patented rotary filtration systems. The continuous systems feature cavities arranged in a ring pattern on the filter disk, allowing screens to be changed without interrupting the production process and without pressure fluctuations. The system can be used for many different types of polymer with different viscosities. The new model is intended to combine the properties of several older models in one simple and cost-effective solution. 

Gneuss at K 2019 

New Filter and Revamped MRS Target Cost Efficiency 

Sesotec GmbH, Schönberg, Germany, extends its range of free-fall metal separators with the Rapid Pro-Sense 6. This system is optimized for applications in the plastics industry, especially for granulate and compound producers. Used for quality assurance it, among other things, also is suitable for applications involving abrasive material. The model features a high detection accuracy and thus provides protection against complaints caused by metal particles, and the logbook function allows full traceability. Constant high product quality is thus guaranteed. 

Sesotec Presents Rapid Pro-Sense 6 

Kunststoffhandel

New Free-Fall Metal Separator 

In Russia, 68 sets of Polystar plastic pelletizing machine have been installed since 2012. Amongst them, 45 lines are dedicated specially for post-consumer recycling.  

Increasing Number of Two-stage Recycling Pelletizing Machines 

Sondermaschinen

Post-consumer Recycling (PE/PP) Growing in Russia 

Global sustainable food packaging leader Huhtamaki and international charity WasteAid have announced a 900,000 Euro partnership to drive community-level circular economy innovation in Vietnam, India and South Africa for a two-year period.  

Drive Community-level Circular Economy Innovation in Key Locations 

Huhtamaki and WasteAid Announce Global Partnership  

Sesotec Sorting Systems Help Ensure High Quality in PET Flake Production 

With the rise in consumption of raw materials, plastic processors are facing higher political and social demands to use a greater proportion of recycled materials. Companies such as MultiPet GmbH, a recycling company which processes used PET materials into flakes, make this transition possible. Along with their sister company Multiport, which specialises in making HDPE compounds from packaging waste, they are considered important suppliers of secondary raw materials for the plastics processing industry. 

How does the PET recycling process work? 

MultiPet receives pressed bales of pre-sorted PET waste. After the bales are broken up, plastics are first checked for impurities, then ground into flakes and intensively washed. 

The FLAKE PURIFIER+ multi-sensor sorting systems from Sesotec come into play directly after the ground material has undergone a two-stage density separation process involving two rounds of hot washing. At this stage, the sorting systems separate discoloured materials, foreign plastics and metals from the flakes. 

Sesotec FLAKE PURIFIER+ units are designed especially for use in plastic flake processing and are characterized above all by ease of operation and heightened throughput capacities. 

At MultiPet, the FLAKE PURIFIER+ systems are equipped with multiple sensors for colour and material recognition. This enables MultiPet to produce PET flakes in batches of different colours and qualities for use as raw materials in the plastics processing industry. By using recyclates produced by MultiPet, plastic processors are reducing their CO2 footprint, contributing to climate protection and conserving resources. 

“Sesotec’s processing technology enables us to keep the loss of good material to a minimum”, says Herbert Snell, Managing Director of MultiPet GmbH. “This makes our sorting processes even more efficient.“ Sesotec‘s scope of delivery was complemented by a turn-key material handling setup which included steel work platforms and material conveyance systems, simplifying integration into the overall system. 

Sesotec GmbH  

https://www.sesotec.com

10923591 News Beitrag [Online] - Sesotec-Sortiersysteme bei Mult

FLAKE PURIFIER+ multi-sensor sorting systems from Sesotec in the recycling plant of MultiPet GmbH. (© Sesotec GmbH) 

issue 05/2021

issue 04/2021

issue 03/2021

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