Thermoplastics: Versatile All-Rounders for Industry and Everyday Life

We encounter thermoplastics everywhere in our daily lives – from packaging and vehicle components to medical applications. At the same time, they are becoming increasingly important in industry and research – not least due to growing demands for recycling, resource efficiency and regulatory requirements.

Precisely because thermoplastics can be reshaped multiple times and are fundamentally recyclable, they are regarded as key materials in modern plastics processing. But what exactly lies behind this type of plastic – and why is it indispensable for so many industries?

Thermoplastics are one of the three basic types of plastic. These are the key differences:

Thermoplastics are the only group of plastics that can be reprocessed repeatedly by melting – a key advantage for industrial manufacturing and recycling processes.

The differences in recycling stem primarily from their molecular structure: whilst thermoplastics can be reshaped by heating, cross-linked plastics such as thermosets and elastomers require different, often more complex recycling processes.

Thermoplastics combine properties that make them particularly versatile and cost-effective in many applications. What matters is not just what they can do – but the advantages that result from this:

Meltability and mouldability: Thermoplastics soften when heated and can be shaped into almost any form. This process is reversible and can be repeated multiple times.
This enables flexible processing and efficient mass production, for example in injection moulding or extrusion.

Recyclability: As they can be remelted, thermoplastics can be mechanically recycled and reused.
A key advantage for the circular economy and the increasing use of recycled materials.

Good processability: Thermoplastics are suitable for numerous industrial processes and can be processed precisely and automatically.
This makes them particularly attractive for applications involving high volumes and consistent quality requirements.

Customisable mechanical properties: Depending on the polymer and additives, thermoplastics can be designed to be flexible, tough or rigid.
This enables the targeted selection of materials for a wide range of requirements – from lightweight construction to heavy-duty components.

Chemical resistance: Many thermoplastics are resistant to moisture, chemicals and corrosion.
This broadens their range of applications, for example in packaging, construction or medical technology.

Depending on their performance characteristics, thermoplastics can be divided into three groups:

In summary: Thermoplastics cover a broad spectrum – from cost-effective packaging to high-tech applications.

Thermoplastics are found in virtually every industry and link different value chains.

• Automotive and mobility: Lightweight parts and functional components – a key driver for reducing weight and CO₂ emissions, particularly in e-mobility.
• Packaging: films, bottles and containers – central to issues such as recycling, reusable packaging and design for recycling.
• Medical technology: Disposable products, device components and high-performance plastics – crucial for hygiene and safety.
• Electronics: Enclosures, connectors and insulation materials – growing in importance due to digitalisation.
• Construction: Pipes, profiles and insulation materials – valued for their durability and weather resistance.

Thermoplastics are therefore a key material in modern industry – from the mass market to high-tech applications.

Thermoplastics are considered to be relatively easy to recycle, as they can be reshaped and reprocessed by heating. This makes them an important material for circular economy initiatives and the use of recycled materials.

However, factors such as material diversity, additives or inadequate sorting can make recycling more difficult. The quality of the material can also deteriorate with repeated reprocessing.

Thermoplastics offer good conditions for circularity. Their potential is fully realised when products are designed accordingly and materials are consistently kept in the loop.

Which of these materials are thermoplastics?