APPLICATIONS
Acoustic applications
Technically speaking, sound is a mechanical wave that propagates in a medium (solid, liquid, gas) depending on density, temperature and direction. In the media, sound causes pressure fluctuations which, depending on their characteristics, can also lead to the destruction of solids in particular. The reflection or deflection of sound can be used for measuring and analysing techniques. Sound at frequencies of 20 kHz to 1 GHz is known as ultrasound and is used in both medicine and technology.
The use of plastics in these applications is not without its problems, as they often have good damping properties, absorb sound and convert it into heat. In addition, the swelling load caused by the sound can lead to mechanical overloading of the plastic. Certain, mostly amorphous special and high-performance plastics nevertheless offer good application possibilities, as they enable the uniform propagation or transmission of sound - especially ultrasound.
With Q200.5, POLYTRON supplies a special plastic that is particularly suitable for use at high acoustic and electromagnetic frequencies. In addition, there are other speciality and high-performance plastics that have been used for many years in a variety of medical (lithotripsy, sonography, sonotherapy) and technical applications (sonar, echo sounder, welding and bonding processes, non-destructive material testing, etc.).
Advantages of plastics:
- Generally good insulation and damping properties
- Defined sound transmission of certain plastics
- Frequency independence of the properties
Find out more about our field of application.