Dielectric silicone is a polymer material that combines the elasticity and dielectric properties of silicone. With its excellent insulation, weather resistance, and stability, it is widely used in fields such as electrical, electronic, medical, and new energy. Its electrical performance is particularly outstanding, manifested by a dielectric strength of 15-30kV/mm, which can withstand high voltage without breakdown, ensuring the safety of electrical equipment; Dielectric constant 2-4, low value reduces energy loss, improves equipment efficiency, and has excellent stability at high frequencies; Volume resistivity 10 ¹² -10 ¹⁴Ω· cm, surface resistivity 10 ¹² -10 ¹⁴Ω, low conductivity ensures insulation effect; The dielectric loss tangent is less than 0.003 (50Hz/25 ℃), and the temperature/frequency changes have minimal impact. The performance is stable after immersion in water. In terms of physical and chemical properties, it has high temperature resistance (-50 ℃~200 ℃), ozone resistance, good weather resistance, and resistance to ultraviolet aging; Good hydrophobicity and breathability, strong chemical stability, acid and alkali resistance, and solvent resistance; High biocompatibility, suitable for medical implantation scenarios.

In the field of power and new energy, it is mainly used as cable accessories (such as stress pipes, insulation shielding layers), composite insulators, and sleeves, for insulation components of high-voltage/ultra high voltage power grids and wind turbines, to solve the problem of stress concentration in electric fields, and to meet the signal transmission and low power consumption requirements of new energy fields such as 5G base stations and high-speed electronic equipment. In the field of electronics and consumer goods, typical applications include mobile phone cases and wireless headphone ear caps, which enhance user experience through anti slip and tactile optimization; Electronic component sealing and waterproof coating (such as RTV silicone sealing) ensure the waterproof performance of the equipment.

In the medical and industrial fields, it is commonly used in the production of medical grade liquid silicone (LSR) surgical gloves, urinary catheters, and respiratory masks; Industrial shock absorbers, O-rings, and waterproof sealing strips are achieved through oil/chemical resistant fluorosilicone. In terms of special function development, conductive silicone (with added carbon black/metal powder) is used for key contacts and anti-static components; Thermal conductive silicone (alumina/boron nitride filler) is used for electronic heat dissipation gaskets to optimize thermal management performance.

Compared to ordinary silicone, the main difference lies in the special optimization of the raw material formula, such as adding dielectric fillers (such as titanium dioxide) or adjusting the vulcanization process to improve the dielectric constant and insulation performance; Ordinary silicone focuses on universality and has weaker dielectric properties. In terms of performance, anti-static transfer printing silicone requires the addition of anti-static agents to prevent product damage caused by electrostatic adsorption; High dielectric constant silicone rubber (such as 20-30) is used for cable stress control and optimizing electric field distribution.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber