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Key research areas Overarching research topics of strategic importance

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Key research areas represent IKV’s strategic research questions

Within the broad spectrum of research topics at IKV, the guiding themes – additive manufacturing, digitalisation, circular economy, and lightweight construction – hold a superior position. They represent the relevant future topics of the plastics industry and thus have equal strategic importance for the industry as well as for research and teaching at IKV.

Guiding themes promote strategic development at IKV

Numerous projects at IKV are related to one or more of the guiding themes. To bundle these research projectsnand strategically develop the guiding themes further, working groups have been established at IKV for all guiding themes.


Working groups bundle expertise and promote innovation

The activities of the working groups combine the expertise of employees from all scientific departments. By discussing current developments and generating new ideas and projects, the guiding themes experience content expansion, and connections to other IKV research topics become apparent. Furthermore, the working groups develop concepts, methods, and content for teaching and determine strategies for transferring scientific findings into practice.

 


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Circular Economy

New paths for recycling plastics

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Only through an efficient circular economy can plastics realise their potential in addressing important challenges such as the energy transition, digitalisation, or electrification without harmful effects on climate and environment. Compared to other materials, plastics are usually the more resource-efficient alternative, and their associated ecological disadvantages typically result from their still largely linear ‘lifecycles’. Technological innovations, recyclable product design, and new ways to use recyclates on a large scale for high-quality plastic products are the key to sustainably shaping the circular economy.

The digital control and networking of machines has now become common practice in the plastics industry. New digital methods range from data collection to AI-based development of new materials and processes, as well as AI-based production.

The automatic analysis of large amounts of data makes process-related data usable for process control, further development of existing simulation models, and for machine learning, allowing an ever-better understanding of processes. Digitalisation allows for the networking and redesign of the value chain. Data on a specific material can be passed from actor to actor and, for example, incorporated into the control of downstream processes and used to build holistic, controllable production systems. Thus, digitalisation also makes a crucial contribution to the circular economy and sustainability.

Current research projects

in the field of circular economy

Foil-Backing – Innovative film backing for textile, recyclable mono-material floor coverings based on recycled polyamides

The aim of the project is to develop a recyclable textile floor covering made of polyamide.

Smellstop – Odour reduction as a key technology for the use of recycled post-consumer polyethylene

To promote the recycling of post-consumer polyethylene and reduce downcycling, odor reduction is emerging as a crucial technology. The funding initiative ‘Resource-Efficient Circular Economy – Plastic Recycling Technologies (KuRT)’ aims to sustainably increase the recycling rate

AI application hub for plastic packaging

The KIOptiPack innovation lab is all about providing, validating and transferring practical AI-supported tools for successful product design and the high-quality production of plastic packaging with a high proportion of recycled materials.

LOOPCYCLING – Improvement of industrially available LDPE recyclate qualities from household PCR

The project involves the entire plastics recycling value chain in order to push the boundaries of mechanical recycling and achieve the best possible recyclate qualities using established industrial processes.

LFT-Recycling – Sustainable LFT components: Post-industrial and post-consumer secondary raw materials for production

The ReLFT research project aims to process post-industrial (PIR) and post-consumer recyclates (PCR) in a material-appropriate and fiber-preserving manner. By applying a pressing method, the project seeks to produce LFT components with consistent mechanical properties, promoting sustainability in the production of lightweight components.

PermaSim – Semi-empirical model for permeation mechanisms through plasma-polymerised barrier coatings

The PermaSim project investigates the mechanisms of gas permeation through PECVD barrier layers on a micro- and nanoscale level. The goal is to develop a semi-empirical model that accurately describes gas permeability through these layers and enhances the understanding of the underlying processes.

ReHyComPro – Entwicklung eines recyclingfähigen hybriden Composite-Profilsystems für Fenster- und Türanwendungen

In the ReHyComPro research project, a new process combination of pultrusion and extrusion was developed to functionalise pultruded profiles with a thermoplastic inline coating.

ViscAssist – Production assistance systems for predicting the viscosity curve of polyolefin recyclates

The ‘ViscAssist’ project aims to develop a production assistance system that can predict the viscosity curve of polyolefins using recycled materials in real time. An intelligent soft sensor that records all production data in the compounding process is intended to improve the quality of materials containing recyclate and make process control more efficient.

Circular economy as a key topic at IKV

Since the 1980s, IKV has been developing solutions for numerous issues related to recycling, recyclate characterization and use, as well as recyclable product design. The Center for Plastics Analysis and Testing (KAP) demonstrates, through its research on targeted material analyses, the possibilities and limitations of using recyclates in various applications. Plasma technology at IKV plays an important role in recyclable product design. PECVD coatings can act as good barriers against various media on plastics. The extremely thin layers do not affect the recycling process, allowing them to replace conventional non-recyclable barrier systems. At the same time, they enable a broader use of recyclates by preventing the migration of foreign substances into the filling material. In combination with digital innovations, the results can significantly contribute to increasing recycling rates and the circular economy of plastics. This includes, for example, a digital infrastructure for mapping the complete life cycle as well as innovative data science methods.

Rainer-Dahlmann
Prof. Dr. rer. nat.

Rainer Dahlmann

Scientific director and Head of Center for Analysis and Testing of Plastics (KAP)

Digitalisation

Networking for optimised processes

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Digital control and networking of machines is now common practice in the plastics industry. New digital methods range from data collection to AI-based development of new materials and processes, as well as AI-based production. The automatic analysis of large amounts of data makes process-related data usable for process control, further development of existing simulation models, and for machine learning, allowing for an ever-better understanding of processes. Digitalisation enables the networking and redesign of the value chain. Data on a specific material can be passed from actor to actor and, for example, be incorporated into the control of downstream processes and used to build holistic, controllable production systems. Thus, digitalisation also makes a crucial contribution to the circular economy and sustainability.

Current Research Projects

in the field of digitalisation

FoamSimExpert: Thermoplastic foam injection moulding

The FoamSimExpert project aims to simplify the main challenges of the structural simulation chain.

DAVID – Digital design methods for inline-monitored pressure vessels

The technological goal of the research project is to achieve a realistic description of the container materials and the overall system during production and the product life cycle by means of end-to-end digitalisation and application-specific characterisation and modelling.

Internet of Production Cluster of Excellence

In the EXC “Internet of Production” a consortium of more than 35 participating institutes at RWTH Aachen University has been researching the topic of digitalization in production processes since January 2019.

AI application hub for plastic packaging

The KIOptiPack innovation lab is all about providing, validating and transferring practical AI-supported tools for successful product design and the high-quality production of plastic packaging with a high proportion of recycled materials.

Digitalisation as a key research topic at IKV

IKV is a world leader in scientific research in the field of digitalisation in the plastics industry and a forward-looking research and development partner for science, industry, and innovative start-ups. At Campus Melaten, the Plastics Innovation Center 4.0 (PIC 4.0) has been established as a fully digitalized research infrastructure for comprehensive and practical research on digitalisation topics in plastics production. As a competent contact partner, IKV offers the infrastructure for test beds to develop new digital methods with its Smart Factory. The goal is not only to enable the plastics industry to handle digitalisation methods competently but also to train young professionals with Industry 4.0 expertise.

Mauritius-Schmitz-Square
Dipl.-Ing.

Mauritius Schmitz

Scientific director

Lightweight technologies

Key materials for sustainability

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Fiber-reinforced plastics (FRP) are among the key materials for climate protection and sustainability as highly durable lightweight construction materials. They enable significant savings in energy, material, and emissions in various applications and industries. The use of FRP is no longer limited to diverse small series or individual pieces. With today’s production processes, short cycle times in the minute range and thus large series can already be economically realised.

Current research projects

in the field of lightweight technologies

HYInno Tank – Low-maintenance mobile high-pressure storage tanks

The project demonstrated the feasibility of structural monitoring in continuous fiber-reinforced components under static and cyclic loading, as well as the detection of impact damage.

DAVID – Digital design methods for inline-monitored pressure vessels

The technological goal of the research project is to achieve a realistic description of the container materials and the overall system during production and the product life cycle by means of end-to-end digitalisation and application-specific characterisation and modelling.

Characterisation methods of the bond strength between UD tapes and molding compound in injection moulded parts

Thermoplastic glass fiber tapes offer enormous lightweight construction potential for injection-moulded components. In order to overcome material and process-related challenges such as residual stresses and interface failure, innovative tape inserts with integrated fiber optic sensors enable the precise measurement of temperature and strain histories. This enables a well-founded characterisation of the bond strength under real conditions.

Indi-FVK: Development of a digitalised design process for individualised FRP components

In this cooperation project between IKV, the Institute for Human-Machine Interaction (MMI) and the Fördervereinigung Programmiersprachen e.V. (FVP), the thermoforming process of UD tape laminates is mapped in a software for process planning and control.

NSF-DFG – Quantitative analysis of tape adhesion in back-molded thermoplastic components using data-physical multiscale methods

The DFG and NSF-funded project focuses on microcrystallization and diffusion processes. The aim is to develop data-driven simulation models to accurately calculate the bond strength between thermoplastic UD tapes and short fiber-reinforced injection molding material on a macroscopic scale.

Potential of a foamed lightweight structural component made of long glass fiber reinforced thermoplastics

Long glass fiber reinforced thermoplastics (LFT) offer enormous potential for lightweight structural engineering. The use of thermoplastic foam injection moulding (TSG) with a motive fluid atmosphere improves mechanical properties, while innovative design guidelines optimize the process design. New research results enable material-efficient and load-compatible components with greater geometrical freedom.

Lightweight Construction as a key research theme at IKV

Lightweight construction research at IKV has many facets and includes fibre-reinforced thermoplastics and thermosets as well as foamed material systems. IKV is improving methods for the design and material and production-orientated design of components.

In combination with the cross-departmental further development of technology modules and processes in the process chains of injection moulding, extrusion, liquid impregnation processes, winding and pultrusion technology, taper processing, forming and the processing of semi-finished thermoplastic products, innovative solutions are continuously being developed. These help to significantly reduce the ecological impact of the production, use and recycling of lightweight materials at the end of their life cycle and at the same time make them economically viable.

With its comprehensive expertise along the entire product development cycle and modern equipment, IKV offers excellent conditions for research and industrial cooperation. From material selection and component and process optimisation to the development and implementation of full-scale prototypes, the institute supports companies in efficiently and sustainably transferring plastic-based lightweight construction technologies into series production.

Kai-Fischer-Square
Dr.-Ing.

Kai Fischer

Scientific Director

Additive manufacturing

Design freedom and individual components

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Additive Manufacturing (AM) is one of the plastic processing methods that has experienced rapid development in the last 10 years. It is now established in industrial practice wherever individually adapted components in small batch sizes are concerned. The trend continues towards ever larger and more demanding applications, as the high degree of geometric freedom through layer-by-layer construction offers enormous development potential. Current challenges concern the comparatively long production time, the maximum component size, and the mechanical and optical component properties.

Current research projects

in the field of additive manufacturing

Internet of Production Cluster of Excellence

In the EXC “Internet of Production” a consortium of more than 35 participating institutes at RWTH Aachen University has been researching the topic of digitalization in production processes since January 2019.

Improved prediction of local mechanical component properties in additive manufacturing

In the “Interlayer strength of plasticizing AM” project, a calculation routine was therefore developed that determines the local interlayer strength of plasticizing additively manufactured components as efficiently as possible before production.

DFG approves new Collaborative Research Center (CRC) for the intelligent production of lightweight plastic structures

With RWTH Aachen, TU Chemnitz and TU Dresden, three renowned universities and leading locations in the field of lightweight construction are now working together on this joint project.

Additive Manufacturing as a key research area at IKV

IKV has been researching the scaling of additive manufacturing for several years and can draw on extensive in-house research on material and process-related connections in plasticizing additive manufacturing processes. An essential component is the physically motivated modelling of the cooling and solidification of the thermoplastic material. The research results enable the user to fully exploit the potential of Additive Manufacturing, select materials appropriate for the application, and design and optimise processes.

Christoph-Zimmermann-Square
Dr.-Ing.

Christoph Zimmermann

Head of department Injection Moulding and Additive Manufacturing