PBO braided tubing is used to cover pipes and cables
Jul 01,2025
Characteristics of PBO Braided Tubing
① High Strength and High Modulus
PBO fiber has a tensile strength more than 10 times that of steel wire, and its modulus exceeds that of carbon fiber. A single filament with a diameter of 1 mm can withstand a tensile force of 450 kg. Its mechanical properties are significantly superior to Kevlar fibers, making it especially suitable for harsh environments requiring tensile and impact resistance.
② Lightweight
Compared to metal substrates, PBO braided tubing reduces weight by 80%-85%.
③ High Temperature Resistance and Flame Retardancy
PBO fiber can be used at temperatures above 300℃ for extended periods, with a melting point of approximately 650℃. It also exhibits excellent flame retardancy and maintains structural stability in high-temperature or fire environments.
④ Excellent Electromagnetic Shielding Effectiveness (EMI)
Through metallization treatment (such as copper or nickel plating), PBO tubing provides electromagnetic shielding performance comparable to traditional metal materials while maintaining its lightweight nature. This makes it suitable for high-frequency signal transmission and anti-interference scenarios.
⑤ Fatigue Resistance and Corrosion Resistance
PBO fiber is not easily broken under repeated bending or rotation, and it is resistant to acid, alkali, and salt spray corrosion, making it suitable for long-term use in complex environments.
Main Application Areas of PBO Braided Tubing
① Aircraft Cable Protection: Balances lightweight and electromagnetic compatibility requirements.
② High-Pressure Protection: In weapon systems such as anti-ship missiles and air-launched rocket launchers, PBO tubing is used for structural protection in impact and high-pressure environments.
③ Automotive Industry
High-Reliability Wiring Harness Protection: Replaces traditional nylon or polyester tubing for high-voltage wiring harness protection in new energy vehicles. It is high-temperature resistant and flame-retardant, improving safety and service life.
④ Marine and Robotics Technology
Salt Spray Corrosion Resistance: PBO tubing performs excellently in humid, high-salt environments, such as in ship cabling and deep-sea exploration equipment.
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