高性能PBO纤维功能化改性研究进展

PBO fiber is short for poly-phenylene benzobisoxazole, whose main chain is rigid aromatic heterocyclic polymer, its strength is 5.8GPa, thermal decomposition temperature up to 650 ℃. It is the best overall performance organic fibers currently. PBO fiber has excellent mechanical properties and thermal stability, but there are also many defects, such as poor resistance to compression strength, interfacial bonding properties and poor resistance UV capability, which severely limits the application of PBO fiber in the advanced composite materials Therefore a large number of researchers conduct research for PBO fiber modification. This article introduces the structure and properties of PBO fiber, preparation methods, reviewing the PBO fiber reinforced modified and interface modification two aspects in ditail.