In electronic devices, capacitors are a key component that plays an important role in storing and releasing electrical charge in electrical circuits. The housing material of a capacitor plays a crucial role in its performance stability and long-term reliability. In recent years, polyphenylene sulfide (PPS) materials have gradually become one of the preferred materials for capacitor encapsulation housings due to their excellent properties.
1.Adhesion properties of epoxy resins
Through the addition and improvement of PPS material modification additives, it is suitable for epoxy resin sealing, epoxy resin sealing and other uses. This excellent epoxy binding force ensures a tight bond between the capacitor housing and the internal components, effectively preventing erosion and damage from external environmental factors, thereby extending the life of the capacitor.
2.Water vapor barrier properties
Since electronic devices often operate in humid environments, capacitor housings need to have good water vapor barrier properties to protect the internal circuitry from moisture. PPS material has high crystallinity and excellent water vapor barrier performance, which can effectively block the penetration of water vapor, keep the inside of the capacitor dry and stable, and ensure the reliable operation of the circuit.
3.Improved leakage resistance
During the operation of capacitors, it is essential to prevent leakage. After special modification, the relative tracking index of PPS material can be greatly improved, with a CTI value of up to 300-600V, and PPS also has good insulation and high temperature resistance, which can effectively improve the anti-leakage performance of the capacitor, reduce the risk of leakage, and ensure the safe and stable operation of the equipment.
With its excellent epoxy resin adhesion properties, water vapor barrier properties and anti-leakage properties, PPS material just meets the material requirements of capacitor housing.