The core of the application of airbag silicone rubber in automotive airbags lies in its excellent cushioning performance and high-temperature resistance, which build a key protective barrier for passenger safety. As a key component of the airbag system, silicone rubber material, with its high-temperature resistance, aging resistance, excellent biocompatibility, and good elasticity, forms a fire barrier layer on the surface of the nylon base fabric, effectively preventing the high temperature generated by the airbag explosion from burning passengers. This coating design not only has flame retardant properties, but also maintains structural stability under extreme operating conditions, ensuring the integrity and reliability of the airbag during deployment.
Silicone rubber also plays an irreplaceable role in the internal structural components of airbags. For example, during the molding process of carbon fiber prepreg, the silicone rubber airbag core mold applies uniform pressure to the material through inflation, ensuring the molding accuracy and surface quality of complex structural components. This process adaptability not only solves the high cost problem of traditional autoclave processes, but also improves production efficiency through the stability of recycling. The elastic properties of silicone rubber are particularly critical in this process - when the airbag is inflated and deployed, its flexibility can absorb impact energy, converting the collision force into a uniform cushioning force, and minimizing impact damage to key parts of the passenger's chest, head, etc.
In terms of material properties, silicone rubber has a temperature resistance range of -60°C to 300°C, allowing it to withstand the high temperatures of the engine compartment while maintaining its elasticity and resistance to brittleness at low temperatures. This wide temperature range, combined with its excellent tear resistance, ensures the airbag's reliability in repeated crashes. Furthermore, silicone rubber's bio-inertness, which complies with FDA standards, and its non-toxic and non-allergenic properties make it advantageous in airbag designs that come into direct contact with the human body, while its electrical insulation properties ensure safe operation with electronic control units.