Silicone-based halogen-free flame retardants have the following advantages:
High-efficiency flame retardancy: Silicone flame retardants form an inorganic protective layer containing Si-O bonds at high temperatures through the condensed phase flame retardant mechanism, blocking oxygen and inhibiting material decomposition, while promoting the formation of carbon layers and reducing the release of smoke and toxic gases. This flame-retardant method is highly efficient and long-lasting, and can significantly improve the flame-retardant performance of materials.
Low-toxicity and environmentally friendly: Silicone flame retardants do not contain halogens. When burning, they do not produce toxic or corrosive gases, meeting environmental protection requirements and being friendly to both human health and the environment.
Anti-dripping: During the combustion process, silicone flame retardants can form a dense carbon layer to prevent the melt from dripping, thereby reducing the risk of fire spread.
Improving material properties: Silicone flame retardants not only enhance the flame retardant performance of materials, but also improve their processing performance, mechanical properties and heat resistance. For instance, it can enhance the moisture resistance of materials, the flexibility of chains and the ability to resist oxygen free radicals.
Carbonization and smoke suppression: Silicone flame retardants are a type of carbonization smoke suppressant that can promote the formation of carbon layers, reduce smoke generation during combustion, and enhance the flame retardant safety of materials.
Synergistic effect: Silicone flame retardants can work in synergy with elements such as phosphorus and nitrogen, enhancing flame retardant efficiency through hybridization technology. They are suitable for high-end fields with high requirements for flame retardant performance.