Plastics resistant to electromagnetic radiation
Polypedia > Radiation resistant plastics
| Plastics resistant to electromagnetic radiation | |
Depending on its field of application, plastics can come into contact with different types of radiation, which can, under certain circumstances, influence the structure of plastics. Electromagnetic radiation in the spectrum of electromagnetic waves ranges from radio waves with a large wavelength, through normal daylight with its short-wave UV radiation, to extremely short-wave X and gamma rays. The shorter the wavelength of the radiation, the greater the propensity of the plastic to damage An important feature in combination with electromagnetic waves is its dielectric loss factor, it is an important feature to consider in situations where plastics can be exposed to electromagnetic waves, this describes the proportion of energy absorbed by the plastic. Plastics with high dielectric loss factors heat considerably in alternating electric fields and therefore are not suitable for use as a high frequency material and insulating microwave applications. Special attention should be paid to plastics with a high dielectric dissipation factor, since they are generally less suitable for use in microwave and high frequency insulation applications. The following plastic materials have been shown to have greater resistance to electromagnetic waves: PEEK PI PEI PE |  |
| Note | |
Many application parameters, such as geometry, radiation exposure mode, mechanical stress, temperature and the type of substances with which the material comes into contact and others affect the final result. Therefore the information on the resistance of plastic materials should be considered only for indicative purposes, |  |