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Milliken & Compay, Spartanburg, SC/USA, a global diversified manufacturer, has formally acquired Encapsys, LLC, a manufacturer of microencapsulation, from the Cypress Performance Group LLC.

Kunststoff Werkstoffe

Milliken Acquires Encapsys

Chemical Recycling Europe has appointed John Sewell as its new Secretary General. He will take on the position with immediate effect.

Kunststoff-Recycling

Kreislaufwirtschaft

New Secretary General

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

Walmart Inc. agreed at its sustainability milestone summit held in October 2021 to reduce total virgin plastic use by 15% throughout the company’s plastic packaging footprint by 2025 following engagement with As You Sow.

Recycling

Walmart Commits to 15% Plastic Reduction Goal

Dow, HP, Reifenhäuser, Cadel Deinking and Karlville present a feasibility study for recycling digitally printed polyethylene barrier packaging into new high-quality PE bags.

Technik Trend

Polyethylen

Extrusionsanlagen

Important Step towards Pouch-to-Pouch Recycling

As part of a new effort to advance the use of recycled ocean plastic, Sabic and Microsoft have collaborated to create Microsoft’s first consumer electronic product – The Microsoft Ocean Plastic Mouse – with an exterior shell containing 20% recycled ocean plastic.

Computer Mouse Made Partly out of Ocean Plastic

The state of Upper Austria has recognised Engel Austria´s commitment to building up a circular economy for plastics with the Upper Austrian Environmental Award 2021.

Co-Injektion (Barriere-/Sandwich-Spritzgießen)

Engel´s Skinmelt Technologie Awarded

LyondellBasell has obtained the International Sustainability and Carbon Certification Plus certification for certain grades of polyethylene and polypropylene produced at four of its U.S. manufacturing sites.

Polypropylen

LyondellBasell Gains ISCC Plus Certification

The Science Based Targets initiative validated the greenhouse gas emissions-reduction target of Klöckner Pentaplast.

Nachhaltigkeit

Kunststoff-Verpackungsmaschine

“Investing in Better”

Emmi, Borealis and Greiner Packaging jointly develop the first chemically recycled polypropylene ready to drink iced coffee cups

Cooperation on Chemical Recycling of Polypropylene

Caracol and NextChem (Maire Tecnimont group) partnered to create Beluga: a joint research project to produce the first 3D printed sailing boat prototype made in a single piece with MyReplast recycled material.

Anlagen Additive Fertigung / 3D-Druck, andere

Caracol and NextChem Bring to Life Beluga

News Circular Economy

The latest trend in digitization  is the Artificial Intelligence of Things. It amounts to “marrying” Artificial Intelligence with the Internet of Things. In the following interview, Martin Dimmler and Martin Rugfelt discuss how companies can profit from AIoT and what plastics manufacturers can learn from its pioneers in other industries.

Artificial Intelligence of Things: Trends and Models for the Plastics Industry

Spritzgießen

Künstliche Intelligenz für die Qualitätssicherung

Digitale Transformation

Vernetzung / Cloudlösung für die Kunststoffverarbeitung

IoT-Plattformen für die Qualitätssicherung

Fernwartung / Ferndiagnose

Produkt- / anbieterspezifische Automatisierung

Energieeffizienz

Fertigungsautomation

Automatisierungstechnik

Datenanalyse

IoT-Plattformen für die Kunststoffverarbeitung

“Intelligent Automation Brings Systems Closer to their Optimum”

Meusburger’s cooled EC ante-chamber bush features near-gate, circumferential cooling and optimal gate temperature control.

Messe Fakuma

Normalien und Heißkanaltechnik

Optimum Gate Temperature Control

The EWR half-shell version made of stainless steel is new in the range of couplings specialist Enemac from Kleinwallstadt, Germany.

Reinraumtechnik

Verbindungstechnik

Kupplungen

For Use in Demanding Environments

With the Sortex A GlowVision sorting solution, Switzerland-based Bühler AG introduces a 4-in-1’ optical sorting solution that can be used for simultaneous color, polymer, foreign material and loose-label sorting.

Sorting Solution for Bottle-to-Bottle and Food Applications

Materialhandling

4-in-1 Sorter for PET Recyclers

At Fakuma, Granula presents masterbatches specially tailored to more sustainable plastic products. For this purpose, the company has developed grades with biological pigments and degradable additives for injection molding and extrusion.

Masterbatches

Farbstoffe und Pigmente

Farbkonzentrate (Batches)

Farbstoffe

Kunststoff-Rezyklat

Additive

Bio- and PCR-Based Masterbatches

Thermoplay is responding to the challenges posed by the circular economy by expanding its product portfolio with a valve gate nozzle for rPET.

Heißkanalsysteme

Specialty Nozzle for rPET

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