issue 09/2022

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To improve recycling, multi-material packaging is to be replaced by mono-material variants. Coating facilitates production of stand-up pouches made with BOPE.

Coating facilitates high-speed industrial production of stand-up pouches made with BOPE biaxially oriented polyethylene.

Verpackungsmaterial

Polyethylen

Beschichtungen

Kreislaufwirtschaft

Heat-Resistant Coating for Mono-Material Stand-up Pouches

Product innovations, high infrastructure needs, and further alignment of the PVC value chain towards sustainability are the basis for successful development.

With a share of 26 %, PVC is the world’s most widely used polymer in medical products [1].

16:9

Product innovations, high infrastructure needs, and further targets of the PVC added value chain towards sustainability are the basis for successful development.

Polyvinyl Chloride (PVC): Specialties Lead to Improvements in Many Areas

Polyvinylchlorid

Kunststoff Werkstoffe

Standardkunststoffe

Kunststoff-Rohre

Back on Growth Path

At the trade show, Chinese additives manufacturer UniteChem unveiled its expanded range of light stabilizers.

Messe K-Kunststoffmesse

Stabilisatoren

Polypropylen

Additive

Stabilizing Polyolefins

Bio-Fed’s booth will be dedicated to the topic of bioplastics in all their facets, and will be run jointly with Akro-Plastic, AF-Color and parent company K. D. Feddersen.

Bio-Fed‘s K trade fair presentation is dedicated to the topic of bioplastics in all its facets.

Compound

Kunststoffe, biobasiert

Biokunststoffe

Kunststoffe, bioabbaubar

Organic – both Inside and Outside

Because their properties can be varied to suit specific applications, they are used in many different areas.

The styrene copolymer Luran S 778T SPF30 can be used to produce high-quality surfaces with long-term durability. The polymer is used, for example, in the MG Linghang vehicle from Saic.

Styrene Copolymers: High-Quality, Durable, Protective Surfaces

Polystyrol

Styrol-Copolymerisate

Variability Enables Use in Many Areas

PP is a material with good future perspectives. It is attractive as it combines several different properties. It is economical, covers a wide application area – and can be readily recycled.

The “Monobloc” from PP, here in a green version, is one of the most affordable and versatile seating furnitures worldwide (photo from the movie “Monobloc” by Edition Salzgeber).

Wachstum trotz Krise: Wieso Polypropylen (PP) ein Werkstoff mit guten Zukunftsperspektiven ist.

Polypropylene (PP): Growth despite Crisis

Technische Kunststoffe

Kennzahlen

The Future of Polypropylene Lies  in the Circular Economy

Consumption and manufacturing capacities are growing most in North America and China. In Europe, companies are working on specific paths.

PE films with monoaxial and biaxial orientation help to replace multi-material compounds for packaging.

Polyethylene (PE): Shaping New Trends in Power Generation and Packaging

Rohre, Profile

Kunststoff-Recycling

Rohre, allgemein

Resilient through Changing Markets

PEX Pipe Blue is the world’s first pipe portfolio made from PEX with renewable feedstock accredited by mass balance accounting under the International Sustainability & Carbon Certification Plus (ISCC PLUS) scheme.

The pipes are the world’s first variants to be made with ISCC Plus certified bio-based PE-X.

Plastic Pipes with 90 Percent Smaller Carbon Footprint

Milliken has developed a number of additives. Many of these are designed to reduce energy consumption in production, weight, and the amount of material used.

Nucleating agents lead to UL-certified energy savings of 5 to 8 % for PP containers.

Save Energy when Processing Polyolefins

The German Recycler Sysplast uses and develops pioneering technologies, including for the processing of surface-coated waste materials from the electronics and automotive industries. For this, the company uses high-performance melt filters from manufacturer Ettlinger.

At Sysplast, an Ettlinger high-performance ERF 350 melt filter separates impurities from the melt in a self-cleaning and largely maintenance-free process; left: Sysplast Managing Director Udo Dobberke, right: Ettlinger Sales Manager Karsten Bräunig.

Schmelzefilter

Recycling of Styrene-based Thermoplastics

Producing high-quality HDPE pipes and reacting flexibly to customer requirements in terms of diameter and wall thickness was the target pursued by Canadian Encoma Ltd. In line with this commitment, the industry newcomer opted for a QuickSwitch line from KraussMaffei Extrusion.

Thanks to the QuickSwitch system, Encoma is able to produce multi-layer HDPE pipes with diameters ranging between 25 and 63 mm on one and the same line.

Extrusion of a Wide Variety of Pipes without Retooling

Polyethylen-Halbzeug

Rohr- und Profilextrusion

Pipe Extrusion “through Thick and Thin”

Until now, only metal has been used for the tailgates of VW cars. In its top of the line electric model, the ID.3, Volkswagen is now using a plastic-metal composite for the first time. One of the materials used for its production is a long glass fiber-reinforced polypropylene from Celanese. The material was required to not only satisfy the mechanical demands, but also enable an attractive appearance.

The ID.3 is Volkswagen’s first car with a tailgate made partly of plastic.

Tailgate of the Volkswagen ID.3: Fiber-Reinforced PP Enables the Use of Plastics

Kfz-Elektronik

Faserverbundwerkstoffe

Pultrusion

Long Fibers, Smart Look

Vehicle weight reduction requirements today pose great challenges not only to automotive manufacturers and suppliers but also to material producers. The materials used must cut weight while at the same time withstanding the mechanical and chemical stresses encountered in service. This can be achieved, for example, with blends of polyamide and polypropylene. These blends also offer other useful advantages.

Fig. 4. Test bars after contact with a calcium chloride solution. The grey points indicate degradation. The bars made from the PA+PP blends show basically no degradation, unlike those made from PA.

Blends of PP and PA Reduce Weight and Improve Chemical Resistance

Blend

Polyamide

Lighter Together

Profiles made of rigid PVC have many advantages: they are easily extrudable, inexpensive, and with suitable additives, they exhibit good UV resistance. However, regarding its mechanical and thermal properties, PVC occasionally reaches its limits. This shortcoming can be evaded by co-extrusion with a PBT blend.

If the properties of pure PVC profiles are inadequate, PBT co-extruded versions are an option. For example, their thermal expansion and post-shrinkage when heated are lower.

Co-Extrusion of PVC with Modified PBT Blend Improves Profile Mechanics

Polybutylenterephthalat

Extending the Limits of PVC

Mars Petcare will use Sabic’s BCT18F impact-resistant polypropylene copolymer for the retort pouches of its Sheba cat food brand.

In the future, Sheba wet cat food will be sold in retort pouches with recycled content.

Polypropylen-Compound

Sustainable Retort Pouches

Perstorp presents a general-purpose plasticizer partly based on renewable raw material using a traceable mass balance concept.

Weichmacher

PVC-Additive

DPHP Plasticizer Based on Renewable Material

Fakuma will see polymers distributor Dreyplas showcasing applications for Lubmer ultra-high molecular weight polyethylene (UHMWPE) from Mitsui Chemicals. Compared with conventional, sintered, semi-finished products, this PE offers substantial cost savings in the production of molded parts and profiles, which are characterized by very good slip properties.

When it comes to tribological applications, UHMWPE represents an alternative to engineering polymers, such as PPS, POM, PA and PBT

Messe Fakuma

Polyethylen, ultrahoch-molekulares

Injection Moldable UHMWPE

Before the direct extrusion of profiles made of polyvinyl chloride was developed, it was previously necessary to produce a dry blend. This process is expensive and energy-intensive and, in contrast to direct extrusion, discontinuous. The direct extrusion of PVC using planetary roller extruders promises an improvement. In addition to soft PVC, rigid PVC can also be processed in this way with a few adjustments.

The direct extrusion of PVC profiles on planetary roller extruders can save costs and energy and simplify the process

Extrusion of Rigid PVC without Dry Blend Production

PVC-Profile

Kunststoff-Profile

Granulat, PVC- (Compound)

Kunststoff-Halbzeuge

Kunststoff

Extrusionsanlagen

Kunststoffverarbeitung: Verfahren

Direct Route to the PVC Profile

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

Especially for packaging, post-consumer recycled percentages of 100 % are increasingly in demand

Masterbatches

Farbstoffe und Pigmente

Farbkonzentrate (Batches)

Farbstoffe

Additiv-Batches

100 Percent Made from Recycling Material

A new HDPE grade fills the space between unimodal and bimodal HDPE grades.

HDPE grade Paxon SP5504 offers good ESCR without compromising stiffness, impact, top load performance, or processability

For Blow Molded Bottles and Containers

For a long time, chemical recycling was considered an unfinished addition to established material processes. In the meantime, however, some technologies are making the leap into large-scale industrial use: an overview of the various processes and providers.

Overview of the Various Processes and Suppliers

Recycling

Polyurethan

What Is Happening in Chemical Recycling?

With Newcycling, multi-polymer and multi-layer plastic packaging, that previously could not be recycled, can now be separated and processed into homogeneous regrind using ZSK twin screw extruders.

Factory at APK AG in Merseburg, Germany, where up to 8000 t/a of plastic recyclate can be manufactured using the new process

APK Relies on Newcycling Processes

Extruder

Extrusionsanlagen für KU-Verarbeitung

How to Make Plastic Compounds out of Packaging Waste

Milliken PP additive for thermoforming uses cleaner chemistry to deliver brighter look.

With its growing range of Hyperform HPN high-performance additives, Milliken helps converters improve their processing and enhance the performance of their final PP parts