Electrical devices and components are constantly exposed to extreme conditions, including thermal shocks, moisture, and vibration. These factors can lead to corrosion, wear, and even complete failure of electronic systems. Polyurethane (PU) encapsulation offers a highly effective solution to protect these devices, ensuring they withstand environmental stress and maintain their functionality.
UBE’s ETERNACOLL® Polycarbonate Diols are specifically designed to enhance PU formulations used in electrical encapsulation. By incorporating ETERNACOLL® into polyurethane systems, it significantly improves thermal shock resistance, moisture resistance, and chemical stability, which results in better protection for electronic devices in both low and high voltage applications.
The unique properties of ETERNACOLL®-based PU formulations include improved adhesion to substrates and superior dispersion of inorganic particles, which leads to enhanced insulation properties. These formulations deliver high durability under harsh conditions, offering long-lasting protection for sensitive electronic components exposed to high temperatures and moisture.
In extensive testing, polyurethane systems based on ETERNACOLL® demonstrated significantly improved thermal ageing resistance compared to traditional benchmark polyols. Tensile strength and hardness were retained better in formulations containing ETERNACOLL® even after hygrothermal ageing under extreme conditions of high temperature and high humidity. This means ETERNACOLL®-enhanced PU systems are better suited for environments with frequent temperature fluctuations and intense vibration, making them ideal for protecting electrical devices in automotive, industrial, and consumer electronics.
With ETERNACOLL®, devices encapsulated in PU-based systems will experience enhanced performance, longevity, and reliability in challenging conditions.
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