A leading global supplier of engineering plastics, Polyplastics’ DURANEX(R) PBT and DURAFIDE(R) PPS materials - targeted for sensors in radar and camera bracket systems - show great promise in delivering low warpage, dimensional stability, and low dielectric constant.
According to a statement, Polyplastics reports that water absorption has little effect on DURAFIDE(R) PPS 1140A6, but some impact on DURANEX(R) PBT 330HR.
As a result, Polyplastics is working on the development of new PBT (Polybutylene terephthalate) grades with enhanced low-dielectric properties and low water absorption.
For the radar bracket itself, electromagnetic wave-shielding properties are needed to protect against unnecessary reflected waves.
Polyplastics' electrically conductive grades, DURACON(R) POM CH-10 and EB-10, and DURANEX(R) PBT 7300E, are all being considered while new PBT grades with stronger electromagnetic wave-shielding properties are under development.
The company has also developed matte technology which uses laser treatment to reduce noise (scattered light), resulting in favourable gloss and blackness levels.
Polyplastics said it would continue to research long-term durability and different process conditions to reduce treatment time.