Material Analysis
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Performance Degradation of PBT in Microwave Environments
Fenómeno del problema
PBT electrical components degrade in performance after long-term use in microwave or high-frequency electromagnetic fields.
Análisis de la causa
PBT degrades under the action of high temperature, high humidity, and electric fields, and the dielectric properties decline, which is more obvious especially when halogen-containing flame retardants are used.
Solución
Select high-purity PBT raw materials; control the type and dosage of flame retardants; consider derated use during design.
Conclusión clave
Attention needs to be paid to the long-term stability of PBT in electric field environments.
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