The use of TPE materials with recycled content increases the sustainability of vehicles. They are also used more and more in the interior.

The selection of high-quality recyclate enables their use in demanding automotive applications.  

16:9

Recyclate Reduce the CO2 Footprint in Seals and Interior Applications

Thermoplastische Elastomere

Kunststoff Werkstoffe

Thermoplaste

Kunststoff-Recycling

Kunststoffverarbeitung: Verfahren

Kunststoff-Aufbereitung

Kunststoff-Rezyklat

Kreislaufwirtschaft

Soft, Elastic and Recycled

Automakers have formulated ambitious plans for their vehicles. We discussed this topic with Frank Schumann from Trinseo.

Batterien

Energiespeicherung

Elektromobilität

Mobilität

Lichttechnik

“Nothing Speaks against the Use of Recyclates for Demanding Components”

The quality of recyclates can be improved very well by means of suitable additives. An overview of the variety of products and their suppliers.

Overview: Additives for Plastic Recyclates

Stabilisatoren

Additive

Vitamins for the Circular Economy

The quality of recyclates is seen as too low. Improvements are possible by using additives, as was shown by the exchanges during the Forum Plastic Recyclates.

Quite clearly, the central theme of this year’s conference  was additives for recycling materials.

Streifinger, Florian

Recycling

Umweltmanagement

Additives Are Decisive

Material and manufacturing process optimized, CO2 saved: recycled wash cap from Pöppelmann K-Tech closes the loop.

Material and manufacturing process optimized, closed loop: Recycled wash cap for the automotive industry. 

Spritzgießen

Schaumspritzgießen

Sustainable Wash Cap

Christian Schiller’s goal is to turn the phrase “plastic waste is recyclable material” into reality. His tool of choice: digitalization.

Digitale Transformation

Wirtschaft

Innovationen und neue Technologie

Start up

Unternehmen und Unternehmer

Ehrhardt, Melanie

“We See Our Work as Basic  Digitalization“

In general, recycled chocolate molds of PC do not meet the food contact requirements. A new recycling strategy is to provide a remedy.

Polycarbonate is frequently used for molds in chocolate production.

Polycarbonat

The Chocolate Side of Polycarbonate

RCS Plastics processes PET flakes into high-quality regranulate for preform and beverage bottle manufacturers. To ensure the required food quality of the recycled material, the company relies on Sikora technology for the quality control of the rPET flakes and pellets.

Cedric Steeg, Employee in Quality Assurance, holds material sample in front of the Puritiy Concept V.

Qualitätssicherung

Polyethylenterephthalat

Check Food Quality of Recyclates

Solvay and Hegen Partner to Bring the First Baby Bottle Made with Recycled Content to the Market.

In the future, Hegen will manufacture baby bottles from mass-balanced PPSU recyclate.

Messe Fakuma

kunststoffe-international.com

Recyclates Now Also for Baby Bottles

Using the latest technological advances in flake sorting helps bridge the gap between supply and demand.

Mixed plastic waste: With about 180.5 million t polyolefins make up the lion‘s share of annual plastics production.

Quantum Leap in Recyclates Quality

The stabilization of used plastics is costly. Online measurement during compounding allows for stabilization directly in production.

Plastic waste often has a very different stabilizer content. This must be precisely determined in the recycling process. 

Determined Online, Recyclate Wins

Automakers want to reduce the carbon footprint of their vehicles. Frank Tönniges from Adient explains what savings are possible in seating.

Frank Tönniges: “Polyurethane has no competition. No material can currently hold a candle to it.”

Polyurethan-Schaumstoffe (PUR)

Halbzeuge und Zwischenprodukte

Kunststoff-Halbzeuge

Polyurethan

“We Are Saving 50 Percent  on Foam Emissions”

Neste, Uponor, Wastewise and Borealis enable chemical recycling of hard-to-recycle plastic waste into new high-quality plastic pipes.

The project demonstrates that plastic waste that is difficult to recycle can be turned into high-quality plastic products through chemical recycling.

Kunststoff-Rohre

Technik Trend

kunststoffe.de

Second Life for Discarded PEX Pipes

A Danish manufacturer of wind turbines has found a way to completely recycle the turbines‘ rotor blades.

A new process should make it possible to completely recycle wind turbine rotor blades in the future.

Verbundwerkstoffe / Werkstoffverbunde

New Technology Disassembles Rotor Blades

Looper Textile Co.intends to collect, sort and sell used and unwanted garments and textiles and thereby extend the highest use of these valuable resources.

The waste management company Remondis and the Swedish fashion retailer H&M are pulling together to recycle clothes.

Fasern

Kunststofffasern

Verstärkungsstoffe

H&M and Remondis Create Joint Venture

Recyclable Barrier Systems for Sustainable Packaging

IKV develops recyclable packaging solutions with the help of plasma technologies and presents the current state of research at the IKV colloquium in September.

The Institute for Plastics Processing at RWTH Aachen University (IKV) develops recyclable packaging solutions with the help of plasma technologies and presents the current state of research at the IKV colloquium in September.

Complex multi-layer composites consisting of different plastics that in each case fulfil a necessary packaging function are currently still heavily represented in packaging technology. At the end of their useful life, these composites can be used only for energy recovery because they cannot be segregated into their various constituents. With the help of the Plasma Enhanced Chemical Vapour Deposition (PECVD) technology, plastics can be provided with a high-quality gas barrier that does not impair the recyclability of the plastic. In the discussions on the circular economy, the plasma technology has developed into a highly dynamic area of research with a broad relevance and key innovative force.

The market for flexible packaging is facing major changes because of the challenges that will come about in the transition to the plastic circular economy. Although plastic film is now already being successfully provided with a barrier coat in discontinuous „roll-to-roll“ coating processes, there is at present still no continuous process variant that eliminates the non-productive times that are unavoidable in present batch processes and hinder the overall aim of improving the economic efficiency of the process.

The target is therefore to overcome this problem with the help of an innovative machine development for continuous PECVD film coating. Here, the film is unwound under ambient pressure and passed through a sluice system into a vacuum chamber, in which a SiOx coating is efficiently applied through a so-called „in-plasma concept“. Subsequently, the film is again passed through a sluice system at ambient pressure and wound up. Using conventional joining procedures, the process can be carried out without any interruptions. To develop the complex sluice and vacuum systems, the required pump performance is currently being evaluated and a sealing concept is being devised

Coating of Large-Volume Blow-Molded Parts

The potential and innovative strength of the plasma technology for the circular economy is shown in the founding of the <a href="https://www.kunststoffe.de/a/news/start-up-will-beschichtete-kunststoffver-327962" target="_blank">deep tech startup, IonKraft, which has its roots in the </a>Institute for Plastics Processing. IonKraft transfers scientific findings from plasma research to industrial production technology. Based on research and development work carried out in the 1980s at IKV, which has now led to marketable products in the form of interior coatings for PET bottles, IonKraft is focused primarily on developing a systems technology for the coating of large-volume blow-molded parts. After all, this type of packaging, which is frequently used, for example, in agricultural technology, also needs – for various reasons – to have barrier properties.

Before now, this was only possible with multi-material systems that are unsuitable for recycling. The scaling-up of the process to larger volumes certainly makes fresh demands on the coating machine technology, which have to be met through new constructive modifications in the vacuum technology and also in the microwave technology. Furthermore, the sometimes aggressive agricultural products also make new demands on the PECVD barrier coat, which must also have media-specific resistance properties for this. The business project is being funded by the EXIST research transfer program of the Federal Ministry for Economic Affairs and Energy.

Use of Post-Consumer Polypropylene for Food-Contact Applications

The reuse of high-grade recycled plastics in packaging that comes into contact with foodstuffs is – with the exception of PET – not yet properly established. One of the main reasons for this is the authorization regulations of the European Food Safety Authority (EFSA), which makes strict requirements on the permitted migration of foreign substances from the packaging into the food. Plasma technology is also an obvious candidate for solving this problem: The good barrier properties that are known to exist against water vapor, oxygen and carbon dioxide should also provide very good resistance to the residual foreign substances from recyclate material.

The development and testing are being carried out on standard post-consumer recyclate (PCR) from the DSD (Duales System Deutschland). In the first step, the contamination of the recyclate and its absorption by foodstuffs is simulated with the aid of test substances. In a second step, suitable coating systems are developed that may have to be coordinated to the specific substances. These coating systems are subsequently tested for their suitability for reducing migration. The research work is being supported by the partners Gizeh Verpackungen GmbH & Co. KG and the Green Dot – Duales System Deutschland GmbH. The University of Paderborn is also providing assistance with its expertise in analytics. The approach being pursued can be applied to both rigid and flexible packaging.

The research project described here offers enormous potential for achieving the targets of the European Commission, namely to recycle 55 % of plastic waste by 2030, and thereby substantially increase the proportion of recyclate material used in plastic products.

Schematic representation of recyclable barrier packaging for the chemical industry.

Development of migration barriers for treating post-consumer recyclates.

2022-07-19 IKV-Kolloquium Kreislaufwirtschaft

Talking to each other in person, discussing new trends and technologies, and participating in a lively forum for the plastics industry – this is what participants can look forward to at this year‘s IKV Colloquium on September 7 and 8 in Aachen. For further information click <a href="https://en.kunststoffe.de/a/news/research-meets-practice-2769135">here</a>.

Oberflächenbeschichtung

Holz

issue 08/2023

issue 07/2023

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