TPU-X

TPU-X^® - Competition for rubber elastomers

Online cross-linking of TPU-X^® in the injection moulding process - short process instead of long process chains

„Wherever technological life gets tough is where our TPU-X^® feels at home.“
M. Hunold

The premium material TPU-X^® is deployed anywhere where the highest performance is required. The revolutionary material properties of cross-linked polyurethane (TPU-X^®) are what make this new material so unique. High stresses in machine and plant construction become manageable with TPU-X^®.

A moulding process patented by Hunold + Knoop has made it possible to considerably simplify and speed up the cross-linking process.

High stresses in machine and plant construction become manageable with TPU-X^®.

The advantages of TPU-X

Rubber-elastic properties
Enormous dynamic properties
Considerably increased life expectancy under extreme conditions
Extremely high resilience
Very high level of "snappiness"
Lower abrasion

Continuous working temperature up to +120°C
Short-term max. temperature up to +150°C
Excellent oscillation and vibration dampening (NVH)
Drastically shortened process chain compared to expensive vulcanisation
Short cycle times

2K material combinations with other technical plastics and metals
Settings from approx. 45°ShA to 74°ShD
Oil and grease-resistant
Ozone-resistant
Odourless
Storage stable in contrast to rubber

References

“The output in our sieving plants has increased by 10-12% with the new TPU-X^® sifter balls. The operating time of the balls even increased 3-4 fold.”
_{Dipl.-Ing. Heiko Sykorra, Managing Director}
_{Briloner Hartstein Werk GmbH & Co. KG}

"TPU-X^® offers unbeatable benefits for many applications. Costs are reduced - and higher quality, more resilient parts are produced. Valuable pioneering work is being performed here by Hunold + Knoop.”
_{Hans Kampsen, Head of Sales and Techn. Service}
_{Automotive BASF Polyurethanes GmbH, Lemfoerde}

Areas of application include:

Sealing technology
Gear wheels (substitution of POM, PA, since more flexible)
Rollers, cylinders and spindles for paper transport

The fold test shows the enormous resilience of cross-linked TPU-X^® (bottom) and non-crosslinked TPU (middle).

The Vicat softening test shows that TPU-X^® (purple) softens considerably later, at about 170°C, than non-cross-linked TPU (blue).

Bar graph of the life expectancy of the TPU-X® component

The significantly higher life expectancy of TPU -X^® component (turquoise) compared to competitor products from TPU (blue) has been demonstrated in bench tests at a customer.