issue 07/2022

issue 06/2022

issue 05/2022

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K 2022

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In addition to numerous new developments of the exhibitors, especially the versatile and extensive supporting program should convince the visitors.

16:9

Verfahren für die additive Fertigung

Anlagen für die Additive Fertigung

Anlagen Additive Fertigung / 3D-Druck, andere

Verbände, Institutionen, Messen

Additive Fertigung

Werkstoffe für additive Verfahren

Almost at Pre-Pandemic Levels

At Akro-Plastik and PolyComp, which both belong to the Feddersen Group, Hamburg/Germany, new managing directors are at the start.

Feddersen announced changes in the management of Akro-Plastic and PolyComp.

Kunststoff Werkstoffe

Personen

Change in the Management Board of Feddersen Group

The program for the official special show at K 2022 has been finalized.

Plastics shape the future aims at a dialog between experts, politicians and the professional audience.

Messe K-Kunststoffmesse

Kunststoffverarbeitung: Verfahren

Plastics Shape the Future – But How?

How, and why, plastics processors should invest in flexible automation solutions.

Industrieroboter

Fertigungsautomation

Prozessautomation

Maximize the Benefits of Automation

For efficient lightweight construction fiber-reinforced plastics with a thermoplastic matrix are increasingly being used. How can these so-called organo sheets be optimised?

Verbundwerkstoffe / Werkstoffverbunde

Polyamide

Gewebe, technisch

Flammschutzmittel

Organobleche (gewebeverstärkte Thermoplast-Halbzeuge)

Thermoplaste

Short fiber modification of matrix-rich zones of fabric-reinforced thermoplastic composites by in-situ melt impregnation – influence on quasi-static properties

The production of particle foams with low densities and at the same time high molding quality is difficult, so the development of foamed polymer blends could simplify the entire processing.

Blend

Partikelschäumen

Polylactid

Schäumen / Reaktive Verarbeitung

Study of expandable PLA particle foams – Influence of the blend system on processability and properties

This thesis deals with the development of novel materials with increased thermal conductivity and flame retardancy and their processing conditions for PCB substrate applications.

Harze, Epoxid

Elektrisch leitende Füllstoffe (Metalllegierungen, Ruß, Graphit)

Novel Thermally Conductive and Flame-Retardant Substrates for Printed Circuit Boards – Structure-Property Relationships

This thesis deals with the frictional heating of tribological polymer systems and their influence on tribological behavior.

Polyetherketon

Prüfen von Kunststoffen

Tribologie

On the Effect of the Heat Balance During Tribological Testing of Plastics

The infrared welding is a well-established process in the industrial production of parts in various applications. However, the complex emitter-material interaction, which influences the meltdown behaviour of the plastic parts, results in a high effort for the process setup. A smoking of the plastic parts is to observe in numerous industrial infrared welding processes. The correlations between the smoking of the plastic, its temperature and thermal-oxidative degradation as well as the mechanical properties of the resulting welds are unidentified yet. Furthermore, in industrial infrared welding processes often high changeover times and varying joining part temperatures are existent.

Verbindungstechnik Verfahren

Faserverbundwerkstoffe

Contribution to Infrared Welding of Plastics in Industrial Manufacturing

The concept of bioplastics as sustainable and environmentally friendly materials has become increasingly interesting in both academia and industry. Consequently, many researchers have made great effort in developing bioplastic materials. As new challenging materials, there is still a lack of in-depth understanding of the process−structure−property relationships, especially in multi-phase component nanocomposites.

Polybutylenterephthalat

Biokunststoffe

On the Process-Structure-Property Relationships of Poly(Lactic Acid)-Based Nanocomposites

Driven by necessary energy and cost savings, plastics are increasingly applied as primary components in tribological systems. The trend is marked by research and development regarding the effectiveness of different material compositions in reducing friction and wear, in which friction induced heat is one of the main challenges.

Werkstoffprüfung

Systematic Use of the Chemical Transformation of Magnesium Hydroxide — a New Approach for Polymer Tribology

To ensure better stability of expanded polystyrene insulation panels on the house wall, they are fastened with an additional polypropylene (PP) anchor. However, the fact that two different materials are used results in thermal bridges due to different thermal conductivities (TC), which can be seen visually as the formation of mold and algae, but also cause energy losses. The motivation for this work was to adjust the WLF of the two materials by using a filler, but not to negatively influence the mechanical strength of the anchor.

Polypropylen-Compound

Polypropylen

Füllstoffe für Kunststoffe

Modification of a polypropylene matrix by the use of hollow glass microspheres

Continuous fibre-reinforced polymers (FRP), based on flat sheets, benefit from excellent weight-specific features. These include the possibility of load path optimised design and the option of functional integration. Consequently, FRP offer a high potential for lightweight design. Materials using thermoplastic-based polymers (so-called „organic-sheets“) allow fully automated and fast manufacturing based on their physical processing and are environmentally sustainable because of their recycling capability. Additionally, through improved optical and aesthetic characteristics, new applications can be developed for a mid to high scale production range.

Kunststoff-Halbzeuge

Leichtbau

Oberflächentechnik

Surface optimisation of continuous fibre reinforced thermoplastics

Pultruded, fiber-reinforced tapes have so far only been tested destructively or optically non-destructively. It would therefore be desirable to have a non-destructive testing method that can detect cracks, inclusions and changes in the impregnation quickly and without contact, i.e. that can detect the complete tape volume in contrast to optical methods. The air-coupled ultrasonic method used in this work meets all these requirements.

Kohlenstofffasern / -matten

Zerstörungsfreie Werkstoffprüfung

Pultrusion

Qualitätssicherung Kunststoff

All-embracing Approach of Non-destructive Testing of Thermoplastic CFRP Tapes Using Air-coupled Ultrasound

Foam injection molding is a processing technology to produce foamed plastic parts in serials production, attaining an increasing interest and use in industry. However, the applications are limited due to insufficient knowledge of processing and mechanical properties, limited use of light-weight potential as well restricted surface qualities. All these drawbacks are associated with the cellular structure. The structure characteristics like skin layer thickness, cell size, density and uniformity are developed during procedure. Thus, controlling the cell formation process is the key to work against the restrictions and optimize mechanical properties.

Schaumspritzgießen

Schaumstoffe

Spritzgießsimulation

Industrie 4.0 für die Kunststoffverarbeitung

Controlling cellular structure in thermoplastic foam injection molding – influence of processing and mold technologies

Due to the low thermal conductivity of the polymer matrix, fiber reinforced polymers exhibit a low thermal conductivity compared to metals. By increasing the thermal conductivity and thereby decreasing thermal stresses in the part, an enhancement of its lifetime can be expected.

Beschichten von Kunststoffen

Wärmeleitfähigkeitsmessung

Epoxy Based Carbon Fiber Reinforced Polymers with Enhanced Thermal Conductivity – Structure and Properties

Additive manufacturing, such as the selective laser sintering (SLS), provides the possibility to manufacture structures as 3D-MIDs tool free. The first three-dimensional circuit carriers are already manufactured by selective laser sintering. An established method is the LPKF-LDSprototyping process. Different from conventional 3D-MIDs this process requires an ensuing coating of the additive manufactured circuit carrier with a metal compound containing substance to enable the direct structuring by laser. Commercially available materials for injection molded 3D-MIDs already contain certain additives for laser direct structuring, that can be activated by laser. Thus, the demand for functional powder compounds for the selective laser sintering process to design three-dimensional circuit carriers is mandatory.

Structures and properties of selective laser sintered polyamide- and polyamide-copper-systems for applications in three-dimensional circuit carriers

Expandable polystyrene (EPS, coll. “Styropor”, “Unicell”, “Styrofoam”) is one of the most used foams. It accounts for one quarter of the current foam production in terms of volume. EPS has a multi-scale morphology since EPS parts consist of many fused foamed beads. The foamed beads themselves contain cells, which are formed of walls and struts as well as the cell gas. In this frame, a variation in bead size causes a significant change of surface area, which needs to be moulded, whereas the variation in cell size leads to an altered micro-morphology (cell walls and struts). However, the effect of the multi-scale morphology on the properties has never been studied in a comprehensive manner to the knowledge of the author. Hence, the aim of the work is the establishment of structure-property relationships as well as the clarification of their fundamental mechanisms for the purpose to be able to tailor the structure for a specific application. Thus, further material and cost savings could be possible. EPS and a bead foam made from a blend of polystyrene and polyethylene were studied regarding the effects of cell size, bead size and density on the mechanical and thermal behaviour. Furthermore, the distribution of polymer within a single bead was controlled by the introduction of a solid skin around the beads.

Structure-property relationships of polystyrene-based bead foams

Epoxy-carbon fiber prepregs have been used increasingly by civil aerospace industry to manufacture the structural composite parts due to their excellent mechanical, thermo-mechanical and thermal properties at the cured state. Although carbon fibers are electrically conductive, due to the insulating nature of the epoxy matrix, epoxy-carbon fiber prepreg laminates mostly act as a semiconductor in the through-thickness direction. Nowadays, an enhanced through-thickness electrical conductivity is as well desired for modern composite applications, where a certain level of electrostatic dissipation, electromagnetic shielding or an enhanced lightning strike resistance is necessary.

Towards electrically conductive and interleaf-toughened carbon black-epoxy-carbon fiber laminates with enhanced lightning strike resistance

Analysis by Fraunhofer Institute confirms enormous CO<sub>2</sub> reductions for Pyrum’s pyrolysis process compared to conventional recycling processes for end-of-life tyres.

Recycling

Kunststoff-Recycling

Kreislaufwirtschaft

Recycling of End-of-Life Tyres Works

 With an annual production capacity of 45,000 tonnes of recycled PET and HDPE, Envicco is one of the largest recycling plants for these plastics in Asia.

Alpla and PTT Global Chemical have realised Envicco, Thailand‘s largest plastics recycling plant of its kind with an annual capacity of 45,000 tonnes of recyclate.

Start of Production at Thailand‘s Largest Plastics Recycling Plant

Thanks to a shredder-extruder combination from Pure Loop: high-strength synthetic nonwoven now made with a recycled content of 10 percent

From the left: Günther Sebera (Head of Purchasing, TenCate Geosynthetics Austria), Gundolf Sabathiel (Plant Manager Linz, TenCate Geosynthetics), Patrick Wiesinger (Project Manager, Pure Loop) and Jürgen Gruber (Marketing Director EMEA, TenCate Geosynthetics).

Unternehmen

The Recycled PP Nonwoven

VDMA and 13 member companies to present the latest technologies for the circular economy in the plastics industry at K 2022.

Circular Economy Forum at K 2022

The machine manufacturer will be integrated with Coperion’s recycling product lines into its new Recycling Business Unit that plans to offer complete solutions for plastics recycling processing.

Werner Herbold, CEO, Herbold Meckesheim GmbH (left) and Markus Parzer, President, Polymer Division, Coperion.

Coperion acquires Herbold Meckesheim

The two companies want to contribute their respective know-how to the value chain in order to return plastic waste that is not recycled mechanically.

Left: Christoph Gahn, Vice President Chemical Recycling Business & Technologies BASF; right: Marco Tomasi Morgano, CTO Arcus

Chemie

BASF and Arcus Sign Agreement

As of August 16, 2022, Guenther Klammer is responsible for the research and technical developments of Next Generation Recyclingmaschinen GmbH as the new technical manager (CTO).

Guenther Klammer, new CTO at Next Generation Recyclingmaschinen GmbH.

Guenther Klamm New CTO of NGR

In November 2021, four members of the Feddersen Group announced certification with ISCC Plus. With K.D. Feddersen Holding, now further companies of the group followed.

Further Companies of the Feddersen Group Certified

To close the recycling loop for end-f-life tires, Pyrum will in future produce pyrolysis oil from discarded tires using its own pyrolysis process. BASF will then feed this into its Verbund at the start of production.

End-of-life tires are tires that are no longer suitable or approved for their intended use.

Vom Altreifen zum Türgriff: Pyrum, BASF und Mercedes-Benz schließen Wertstoffkreislauf.

Technik Trend

New Life for Old Tires

News Circular Economy

Greenhouse film should transmit visible light but trap infrared radiation inside the greenhouse. Unfilled PE film cannot wholly accomplish the latter.

The films must promote photosynthesis while retaining heat in greenhouses.

Neuburg Siliceous Earth Improves the Performance of PE Greenhouse Film

Füllstoffe, mineralisch

Additive

A Rich Harvest with the Right Earth

On presents the first ever shoe made from carbon emissions in partnership with LanzaTech, Borealis and Technip Energies.

Cloudprime is made from CleanCloud EVA foam that uses carbon emissions as a raw material.

Textil-, Bekleidungs-, Ledergewerbe

Textilgewerbe

First Shoe Made from Carbon Emissions

Portal for the plastics industry, featuring the latest technical information, news, jobs, products and knowledge concerning polymers and plastics.