HTV silicone rubber for surge arresters

[Makswell]

Hi,

Can anyone help me with compounding silicone rubber for high voltage applications? Like arresters and cut-out fuses

I need to know what are useful level of ATH loading and how to compensate for poor mechanical properties due to high filler loading?

 

[Compositepro]

I expect that ATH (alumina tri-hydrate) will greatly improve structural properties of HTV (high temperature vulcanizing) silicone. It will increase the hardness and modulus. I would start with a 50% by weight loading. The surface hydroxyl groups in ATH reacts with RTV (room temperature vulcanizing) silicone like moisture and will cause it to cure in minutes. The result is a material that bounces like a superball.

Here is a top Google hit:

https://www.researchtrend.net/ijet/ijet61/15 NCRIET.pdf