Silicone resin: an all-around player from microstructure to macroscopic applications
Introduction
Silicone resin, a semi inorganic and semi organic polymer with Si-O-Si - as the main chain and organic functional side chains, is known as the "all-around player" in the materials industry due to its high and low temperature resistance, weather resistance, electrical insulation, and physiological inertness. From aerospace seals to electronic insulation coatings, from building waterproofing materials to medical implants, the application of silicone resin covers every corner of modern industry. This article will analyze the molecular properties, performance advantages, and application scenarios of silicone resin, revealing its core competitiveness as a strategic material.


1、 Molecular properties of silicone resin: synergy between helical conformation and functional groups
The molecular structure of silicone resin is composed of - Si-O-Si - main chain and side chain groups such as methyl, phenyl, amino, etc., forming a helical conformation. This structure endows silicone resin with three core characteristics:


Wide temperature resistance range: Maintaining stability from -100 ℃ to 350 ℃, it is the only rubber material with such a wide temperature adaptation range.
Strong weather resistance: almost unaffected by UV and ozone, with a service life of several decades.
Excellent electrical insulation: maintains good insulation performance over a wide temperature and frequency range, with low dielectric loss.
Case: In rocket manufacturing, silicone molded resin is used to make high-temperature resistant insulation materials, ensuring reliable operation of rockets in extreme environments.