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TPO is based on polyolefin compounds modified with elastomers. With a stiffness lower than conventional polypropylene due to a rubber phase that typically amounts to 60-80%, TPO exhibits special characteristics for specific applications in various markets, such as the building industry, interior design, automotive, as well as toys and footwear.
• Wide hardness scale from 20 ShA-60 ShD
• Good elasticity at low temperatures
• High elasticity module
• Chemical resistance to acids and bases
• Excellent machinability
• Short casting cycles
• Can be designed for food contact approval (10/2011/EU, FDA)
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OBC is based on thermoplastic olefine compounds in the form of blockcopolyms, which, unlike SEBS and SBS, are based on a “styrene-free” chemical structure that offers excellent resistance to UV and aging. They are remarkably versatile in terms of hardness area and manufacturing techniques. This makes them suitable for a wide range of applications.
OBC will be a valid alternative to conventional TSPs in applications that do not require specific physical-mechanical properties produced for markets such as hygiene, household goods, toys, sports footwear, furniture and automotive industry.
• Wide hardness scale from 20 ShA – 60 ShD
• UV stable, ozone resistant and has a high degree of weather resistance
• Chemically resistant to acid, bases, solvents and aqueous solutions
• Approved for food contact (10/2011/EU, FDA)
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SEBS is a control-based thermoplastic elastomer composed of styree, ethylene and butadiene, making it a blockcopolymer with a relatively wide hardness window. For different compositions, SEBS can appear as a highly flexible elastomer for a more rigid elastomer, which generally has many applications.
SEBS can be processed by a number of conventional processes, such as:
• Injection moulding
• Extrusion
• Thermoforming
• Rotational casting
• Good cold and heat elasticity
• UV and age resistance
• Hardness window at 5 ShA – 60 ShD
• A large process window
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Like SEBS, SBS is a control-based thermoplastic elastomer, where the composition of styren and butadiene contributes soft elastic segments as well as hard rigid segments in the chemical structure. The fraction of the segments thus determines the hardness and stiffness of the finished workpiece, whereby an ideal combination of elasticity and hardness at the same time as an appearance and a feeling like rubber is achievable.
SBS can be processed by a number of conventional processes, such as:
• Injection moulding
• Extrusion
• Thermoforming
• Rotational casting
• Hardness window on 20 ShA – 50 ShD
• Reduced chemical resistance compared to SEBS
• Limited possibility of dyeing as SBS has a self-coloured colour
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TPU is a very versatile technical thermoplastic that can be adapted to the individual customer’s needs. The thermoplastic polyurethane (TPU) is very versatile with excellent mechanical properties, high elasticity and superior resistance to low temperatures. They are very durable and suitable for applications where a high resistance to wear (abrasion), oils and fat is necessary and can be adapted to specific application requirements.
TPU’s versatility makes it ideal for multiple applications. In athletic footwear, TPU is used to make high-quality shoe soles, ski boots, skates and football shoes. Technical applications include gaskets, wear-resistant pipes and cables, transmission belts and aiming for abrasive products. In automotive and technical applications, TPU designers give more freedom to create aesthetically pleasing, durable parts such as trim pieces, tactile surfaces, seals or door handles.
The use of TPU via a injection moulding process is typically challenging as it places demands on the forming tools used. Units of TPU are typically difficult to deform in conventional tools, so please ask for recommendations when commissioning or designing new tools using TPU.
• Hardness from 40 ShD to 72 ShD at the rigid types
• Hardness from 40 ShA to 90 ShA at the soft types
• High abrasion resistance
• Good chemical resistance to acid and bases
• Good adhesion to other polymers by co-injection or co-extrusion
Special compounds:
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TPV consists of TPE with dynamically vulcanized thermoplastic elastomers, where the elastomer consists of cross-bound EPDM rubber scattered in a polyolefin thermoplastic matrix. Compared to previous versions of TPV, today the material has improved tensile strength, increased stretching and tear resistance and is available in a wider range of hardnesses.
TPV is suitable for pawning with other materials by both co-injection and co-extrusion with polyole veneer as well as similar materials groups. TPV products are typically found in areas such as agriculture, automotive, construction and construction, fashion and footwear, medical, sports equipment and packaging due to the material’s resistance to scratches as well as various solvents.
• Hardness scale from 30 ShA to 60 ShD
• Scope from -40°C to 130°C depending on compound
• Good compression properties over a large temperature range
• Resistant to high temperatures
• Resistant to thermal degradation and aging
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Introduction to material categories
