issue 09/2022

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Insights into Production, Sales Expectations, and Future Strategies

The Kunststoffe team received a warm welcome at four Wittmann Group locations. Here you see Christian Glück, Product Management and Training, in conversation with Jeanette Rober from Kunststoffe.

Strategie und Organisation

Schröder, Susanne

Materialhandling

Automatisierungstechnik

Spritzgießmaschinen

On Site at Wittmann

Specialty chemicals company Perstorp aims at 30% absolute reduction of water and waste until 2030, from a 2019 base year.

Perstorp sets reduction targets for water and waste.

Umweltmanagement

Perstorp Sets New Sustainability Targets

Plastipack Limited, Hersteller hochwertiger Poolabdeckungen, zerkleinert und recycelt seine Kunststofffolienabfälle inhouse mithilfe einer zweistufigen Zerkleinerungsanlage von Weima.

Production scrap from pool cover production at Plastipack Limited.

16:9

Recycling

Zerkleinerungsmaschinen

Kunststoff-Recycling

Kreislaufwirtschaft

Pool Covers without Waste

The aim of this work was to achieve transparent PC/PMMA-blends by continuous reactive extrusion while improving mechanical and optical properties.

Blend

Polymethylmethacrylat

Polycarbonat

Optische Mess- und Prüfverfahren

Transparent PC/PMMA blends: influence of functionalization on optical, morphological and mechanical properties

In order to bring flame-retardant properties into line with the liquid impregnation manufacturing processes for FRP in rail transport, new innovative flame retardant strategies are necessary.

Glasfasern / -matten

Kohlenstofffasern / -matten

Harze, Epoxid

Flammschutzmittel

Fiber-reinforced polymers in railway application – Flame retardant strategies for low-viscous epoxy resins

The influence of different coupling mechanisms on the structure-properties-relationships of highly filled, flame-retardant EVA/LLDPE based cable compounds.

Polyethylen

Kabel

Halogen-free flame-retardant cable compounds based on highly filled EVA/LLDPE blend systems – Influence of the coupling mechanisms

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

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.

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.

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.

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

Critical step in the transition to using both recycled and renewable PP feedstocks.

Standardkunststoffe

Nachhaltigkeit

Braskem America Receives ISCC Plus Certificate

Plastics Industry Association announces 2023 Recycling Committee Executive Board. Chair: Tory Flynn.

Verbände, Institutionen, Messen

New Recycling Committee’s Executive Board

The new plant will immediately produce an approximate 18,000 tons per year of recycled material from near-household collection.

At the new plant, the joint venture produces recycled PET granulate based on bottles from household waste for the production of new preforms and bottles.

Polyethylenterephthalat

Alpla Starts rPET Production in Romania

At Plastindia 2023, Starlinger puts the focus on efficient plastics recycling and sustainable packaging solutions.

Saves costs and energy: the new recoSTAR PET art recycling system for food-grade rPET.

Decontamination at the Highest Level

The latest scientific findings of existing and novel packaging features along with state-of-the-art recycling technologies are at the center of the update of both the guidelines protocols.

RecyClass Design for Recycling Guidelines and Recyclability Evaluation Protocols

Borealis provides circular solutions for crosslinked polyethylene for the Wire & Cable and Infrastructure sectors.

Borealis Borcycle C chemical recycling process breathes new life into crosslinked polyethylene (PE) types such as XLPE and PE-X.

Technik Trend

Chemical Recycling for Crosslinked Polyethylene

Cooperation reduces CO<sub>2</sub> emissions for the production of chlorine, caustic soda and hydrogen by up to 120,000 tons per year.

Covestro uses electricity with certificates of origin from hydropower for electrolysis at its Leverkusen site.

Kunststoff Werkstoffe

Covestro and Lanxess Aim to Produce Raw Materials More Sustainably

News Circular Economy

Bio-Fed and Günther Heisskanaltechnik have performed various trials, which show that even supposedly sensitive bioplastics can be reliably processed in hot runner molds.

Fig. 4. Interchangeable inserts for various test samples can be installed in the two-cavity trial mold.

Bio-Fed and Günther Heisskanaltechnik have performed trials, which show that even supposedly sensitive bioplastics can be reliably processed in hot runner molds.

While Processing Trials Proved Highly Successful, an Intuitive Feeling Is Required

Spritzgießen

Heißkanalsysteme

Processing Bioplastics  in Hot Runners

PET not only protects and packages beverages, it is also an unwavering companion during their transport.

Packaging for beverages is growing more sustainable.

Verpackungsmittel aus Kunststoffen

Verpackungsmaterial

Verpackungsanlagen

Verpackungstechnik

Verpackungsmaschinen

Allrounder for the Beverage Industry

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

Plastics: News, Jobs, Products for the Plastics Industry