Free Newsletter
Register for our Free Newsletters
Newsletter
Zones
Advanced Composites
LeftNav
Aerospace
LeftNav
Amorphous Metal Structures
LeftNav
Analysis and Simulation
LeftNav
Asbestos and Substitutes
LeftNav
Associations, Research Organisations and Universities
LeftNav
Automation Equipment
LeftNav
Automotive
LeftNav
Biomaterials
LeftNav
Building Materials
LeftNav
Bulk Handling and Storage
LeftNav
CFCs and Substitutes
LeftNav
Company
LeftNav
Components
LeftNav
Consultancy
LeftNav
View All
Other Carouselweb publications
Carousel Web
Defense File
New Materials
Pro Health Zone
Pro Manufacturing Zone
Pro Security Zone
Web Lec
Pro Engineering Zone
 
 
 
News

Shock Absorber Boots Made From Bayer Thermoplastic Polyurethane Help Give Mercedes a Smooth Ride

Bayer MaterialScience AG : 29 June, 2001  (Company News)
Bayer has developed two grades of its Desmopan
The Desmopan TPU is used tomake the flexible boots that cover the car's shock absorbers, protecting them from the elements and from debris on the highway.

'Our material is a valuable solution for applications that involve moving parts made of metal or other hard materials,' said Klaus Heimhard of Bayer's Desmopan Marketing Department. 'In addition to shock absorber boots, potential applications include CVJ boots and protective coverings for steering systems as well as for gas pressure controlled springs in suspension systems.

Automotive parts subject to constant motion require a material with high flexibility and dimensional stability. Heimhard said that due to their good tear strength, reduced tear propagation and high resistance to abrasion, buckling and flexural fatigue, the Desmopan TPU grades are ideal.

'Because they are thermoplastics, they can be processed in short, economic cycle times, showing a clear advantage over elastomers such as ethy lene propylene rubber,' Heimhard said. 'Thanks to their high melt stability, these new grades can be used, for example, for vertical extrusion of the parison without the materials losing their shape under their own weight and without any change in dimensions.'

The high melt stability of the Desmopan TPUs, which can also be injection molded, is the result of precise adjustment of the morphology. During blow molding, the extruded parison conforms very well to the mold cavity, taking on the precise dimensions of the mold surface. The material stretched in this way is both highly elastic and dimensionally stable, Heimhard said.

He said the Desmopan TPUs maintain high levels of flexural fatigue strength in all directions and have high buckling resistance, as well as excellent weatherability and resistance to chemicals, oils and greases. Heimhard predicts that the new TPU grades will be used in a variety of applications, from construction to industrial machinery. But for now, he said, Bayer's focus remains on the automotive sector.
Bookmark and Share
 
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
 
   © 2012 NewMaterials.com
Netgains Logo