back to top
My wish lists
Save your wish list
If you want to add more content to your wish list, simply log in. If you do not have a user account, please register for the Hanser Customer Center.

» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.
Your wish lists
If you want to use your wish list during your next visit, simply log in. If you do not have a user account, please register for the Hanser Customer Center.
» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.

« Back

Your advantages at a glance

  • One login for all Hanser portals
  • Individual home page for faster access to preferred content
  • Exclusive access to selected content
  • Personal wish lists on all portals
  • Central management of your personal information and newsletter subscriptions

Register now
Deutsch
Bookmark Bookmarked
10-01-2018

Particle Foam Based on Polyethersulfone

Prototypes with Unique Combination of Properties

The expandable PESU granulate is pre-foamed into beads with low densities between 40 and 120 g/L and can be processed into molded parts with complex 3D geometries using technologies available on the market (© BASF)

After two years of research, BASF SE, Ludwigshafen, Germany, is presenting prototypes of the first particle foam based on polyethersulfone (PESU). The foam is characterized by its combination of properties: high-temperature resistance, inherent flame retardancy - and its extreme light weight coupled with great stiffness and strength, according to BASF. It is therefore particularly well suited for complex-shaped components in cars, airplanes and trains, which require good mechanical properties together with the ability to withstand high operating temperatures or to meet stringent flame-retardant requirements.

Ultrason E, the PESU of BASF, is an amorphous thermoplastic with a very good temperature profile: It has a high glass transition temperature of 225°C and remains dimensionally stable up to this temperature. Its mechanical and dielectric properties should show only a slightly dependence on the temperature. Foams made of this PESU are approved for use in aircraft. The material, with its high limiting oxygen index of 38 (according to ASTM D 2863), distinguishes itself because it meets the requirements for commercial aircraft with regard to combustibility, low heat release and low smoke density (“fire, smoke, toxicity”) even without the addition of flame retardants, which means it is intrinsically flame retardant.

Fewer Processing Steps, Greater Freedom in Design

Despite its low density the PESU particle foam thus enables stiff and strong components with good excellent dimensional stability at high temperatures. Expanded molded parts made from one single material offer several advantages compared to traditional honeycomb structures coated with phenolic resins: They offer considerable flexibility in terms of densities and shapes and therefore greater freedom in design. There are fewer processing steps and therefore lower system costs. Additional functional parts such as inserts and screw threads can be integrated in the complex geometries. And, according to BASF, recycling of the parts can easily be carried out as the polymer is of one single origin.

Additional information
  • 09-18-2018

    New Managing Director for Bahrain

    BASF Plastic Additives Middle East

    BASF Plastic Additives Middle East (PAME) named Michael Wille its new Managing Director.   more

  • Published in Kunststoffe international 2018/09

    Foam for Thin and Light Instrument Panels

    Light Components for Automobile Interiors

    The thin-light system Elastoflex E from BASF can be used for components with a much smaller profile of less than 5 mm.   more

    BASF SE

  • Published in Kunststoffe international 2018/05

    Styropor P 24 Speed

    Packaging with High-Speed

    BASF introduces the new packaging product Styropor P 24 Speed with reduced molding cycle and conditioning times.   more

    BASF SE

Company profile

BASF Aktiengesellschaft

Carl-Bosch-Str. 38
DE 67056 Ludwigshafen
Tel.: 0621 60-42006
Fax: 0621 6049396

These articles might be interesting for you
Patents Stimulate Innovation

Patents encourage innovation: Stay on the ball with the latest innovations in the plastics industry in our patents section.

Patents

Newsletter

Would you like to subscribe to our Newsletters on plastics technology and profit from the latest information?

Subscribe here

Subscribe here

Trade Names

You know the trade name but want to know the material manufacturer, type of polymer and delivery form? Search here!

Trade Names