Country for PR: Japan
Contributor: Kyodo News JBN
Tuesday, March 03 2020 - 17:00
Polyplastics Highlights DURANEX (R) PBT Grade for High-voltage Automotive Applications
TOKYO, Mar. 3, 2020 /Kyodo JBN-AsiaNet/ --

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


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 carmakers move increasingly to electric vehicles, demand for 
high-voltage components is expected to increase. Polyplastics conducted 
extensive testing of both PA 66 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.

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. 

DURANEX (R) PBT CG7030 exhibits highly superior 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 DURANEX (R) PBT CG7030 maintains its dielectric 
breakdown strength in high-heat and humid environments (85 C/85%RH, after 1,000 
hours). Indeed, a significant decline of around 40% was observed for PA66-GF33% 
in high-heat and high-moisture conditions.

DURANEX (R) PBT CG7030 also has improved volume resistivity versus PA66-GF33% 
which shows significant declines in high-heat and high-moisture environments.

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About Polyplastics
Polyplastics Co., Ltd. is a global leader in the development and production of 
engineering thermoplastics. The company's product portfolio includes POM, PBT, 
PPS, LCP, GF-PET and COC. The company has the largest global market share of 
POM and LCP. With more than 50 years of experience, the company is backed by a 
strong global network of R&D, production, and sales resources capable of 
creating advanced solutions for an ever-changing global marketplace.

DURANEX (R) is a registered trademark of Polyplastics Co., Ltd. in Japan and 
other countries.

Source: Polyplastics Co., Ltd.