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
03-09-2020

PBT Grade for High-Voltage Automotive Applications

Strong Dimensional Stability and Stable Electrical Resistance

The new PBT maintains its dielectric breakdown strength in high heat and humid environments (© Polyplastics)

The new PBT maintains its dielectric breakdown strength in high heat and humid environments (© Polyplastics)

The Polyplastics Group, Tokyo, Japan, is offering a polybutylene terephthalate (PBT) grade which provides improved tracking resistance for a range of high-voltage automotive components. Duranex PBT CG7030 is a 30% glass-filled grade which also delivers strong dimensional stability and highly stable electrical resistance and dielectric breakdown properties.

Extensive Testing

The automotive industry is undergoing drastic change with electrification gaining traction due to worldwide efforts to reduce the use of fossil fuels and cut emissions. As car makers move increasingly to electric vehicles, the demand for high-voltage components is expected to increase. Polyplastics conducted extensive testing of both PA66 and PBT in temperature environments ranging from -40°C to 140°C for electric car applications such as batteries, power control units (PCUs), and motors/generators.

Properties of PBT Grades

Since the properties of PBT grades experience little change even in hot, moist environments, Polyplastics determined that they are more suitable than PA66 for use in high-voltage applications. These results suggest that using PBT could produce less variation in electrical properties when environments change.

According to the company, Duranex PBT CG7030 exhibits very good dimensional stability. Polyplastics reports that both moisture absorption and dimensional change rates for PBT grades are around one-tenth of the values observed for PA66-GF33%.

Test results also show that the new PBT maintains its dielectric breakdown strength in high heat and humid environments (85°C/85%RH, after 1000 hours). A significant decline of around 40% was observed for PA66-GF33% in high heat and high moisture conditions.
Duranex PBT CG7030 also has improved volume resistivity versus PA66-GF33% which shows significant declines in high heat and high moisture environments.

Company profile

Polyplastics Co., Ltd.

JR Shinagawa East Bldg., 18-1
TOKYO 108-8280

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