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RadiciGroup closed its 2020 financial year with consolidated sales revenue thanks to investments in innovation and sustainability.

Polyamide

Gewebe, technisch

Technische Kunststoffe

Good Results despite the Pandemic

Effective June 2, 2021, Ulrich Bartel has assumed leadership of the Coperion Group as President of Coperion.

Dosiergeräte

Kunststoffverarbeitung: Maschinen und Komponenten

Personen

Extrusionsanlagen

Coperion Reorganizes Management

Clariant’s new laboratory in North America will bring together its research and technical experts in specialty formulation ingredients and additives to foster collaborative product development across all formulation aspects.

Messgeräte für Farbe

Prüflabor

Collaborative Center for Paints & Coatings Industry

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

Schäumen / Reaktive Verarbeitung

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

Kohlenstofffasern / -matten

Faserverbundwerkstoffe

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

Thanks to a new machine from Erema the recycling service provider PreZero US expands Capacity for Post Consumer Recycling.

Kunststoff-Recycling

Kreislaufwirtschaft

1000th Recycling Machine for North America

PET flakes can now be processed without pre-drying into pellets using Coperion ZSK twin screw extruders and reprocessed back into bottles again with the quality of virgin material.

Materialhandling

Compoundieren

FDA-Compliant Recycling of PET Flakes

In his very own way, Brazilian artist Eduardo Srur draws attention to the problem of plastic waste in the environment.

Van Gogh Made from Plastic Bags

Engel supports the work of environmental organization Plastic Bank in Indonesia. As part of this cooperation, the injection molding machine manufacturer has financed the collection of at least 120 t of plastic waste in order to reclaim the recycling materials.

Engel Cooperates with Plastic Bank

From May 3 to 6, 2022, Milan will host Greenplast for the first time, an exhibition/convention dedicated to materials, technologies, and converting processes for plastics and rubber, with a strong emphasis on environmental sustainability, recovery and recycling of materials, and energy efficiency.

Verbände, Institutionen, Messen

Kunststoffverarbeitung

Greenplast – A New Exhibition in Italy

The Plastics Recycling Show Europe (PRSE), the pan-European exhibition and conference dedicated to plastics recycling, returns to the RAI Amsterdam, The Netherlands on 4–5 November 2021.

Plastics Recycling Show Europe Returns to Amsterdam

A consortium of well-known beverage brand owners has produced sample bottles from food-grade rPET for the first time using a breakthrough enzymatic recycling process.

Polyethylenterephthalat

Global Brands Unveil World’s First Sample PET Bottles

Fraunhofer Institute Umsicht, Sabic and Procter & Gamble are collaborating on a pilot project for closed-loop recycling of single-use facemasks.

Technik Trend

Recycling

Recycling of Single-Use Facemasks

The Reciturf Project, funded by the Valencian Innovation Agency, is developing new artificial turf recycling methods so this waste does not end up in landfills.

Reusing Artificial Turf Waste

News Circular Economy

The Reversecube two-part cube mold is used to produce 60 million multicomponent parts per year on one production line and in the same process. The cycle times must be kept very short while at the same time maintaining stable processes and a high part quality. Sensor-based monitoring and automatic process control is therefore deployed in the form of Fillcontrol from Priamus. It consists of hot-runner balancing, viscosity and compression control as well as automatic holding pressure changeover.

Automating Injection Molding with Process Control – with the Example of a Cube Mold

Werkzeuginnendrucksensoren

Spritzgießen

Steuern, Regeln

Mehrkomponenten-Spritzgießen

Spritzgießwerkzeuge

Werkzeugtemperatursensoren

Qualitätssicherung Kunststoff

Quality Assurance for Multiple Cavities

An international research team led by members from the Technical University of Munich, the Deutsches Museum, the Linköping University has developed a method to manufacture two-dimensional polymers with the thickness of a single molecule.

Photopolymere

Oberflächentechnik

Tailored by Self Organization and Photopolymerization

Polymaker will offer the Polymaker PC-r 3D printing filament made from recycled polycarbonate (PC). The PC for the filaments comes from materials supplier Covestro and consists of a combination of recycled plastic waste and virgin material.

Kunststoff Werkstoffe

Filamente für additive Verfahren

Kunststoff

Additive Fertigung

Polycarbonat

Kunststoff-Rezyklat

Water Bottles Become Filaments

Kistler’s ComoNeo process monitoring system is now much more precise thanks to an envelope curve adapted to the process, and is WLAN-compatible for the first time.

Everything under Control

To be able to manufacture products from 100 % recycled post-consumer materials (PCR), Avient has developed appropriate colorant and additive masterbatches with PCR matrix.

Verpackungsmaterial

Masterbatches

Farbstoffe und Pigmente

Farbkonzentrate (Batches)

Farbstoffe

Standardkunststoffe

Additiv-Batches

100 Percent Made from Recycling Material

Two new inorganic yellow pigments based on iron oxide and zinc oxide respectively are designed for coloration in a temperature range of between 220 and 260 °C.

Pigmente, bunt

Hochleistungskunststoffe

Additive

Yellow for High Temperatures

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