PBI material generally refers to Polybenzimidazole, a high-performance, high-temperature-resistant synthetic polymer that falls under the category of special engineering plastics. With its exceptional thermal stability, flame retardancy, and chemical stability, it is widely used in high-end fields such as aerospace, firefighting, electronics, and automotive industries.
Core characteristics of PBI materials:
Low hygroscopicity & high comfort: Its moisture absorption rate is about 15%, which is relatively high among synthetic fibers, and it is comfortable to wear, so it is often used in protective equipment such as fire-resistant clothing.
Main applications of PBI:
Aerospace: Spacesuits, thermal shields, aircraft engine components, radar covers, etc.Firefighting and military: Firefighters’ protective clothing, military uniforms, bulletproof vests, etc.Electronics and electrical: High-temperature insulating materials, fuel cell membranes, sensor packaging, etc.Industrial fields: High-temperature filter materials, seals, conveyor belts, corrosion-resistant pipelines, etc.
Summary:
PBI is an “extreme environment-friendly” material that can maintain stable performance under harsh conditions such as high temperatures, corrosion, and flames. Although it is expensive, it is indispensable in scenarios with extremely high critical safety and performance requirements.