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聚对苯撑苯并二噁唑(PB0)纤维是一种高强度、高模量、高热稳定性、高耐化学腐蚀性的新型纤维,在高温过滤、电子电气、合成材料、安全防护、国防军工、交通运输、航空航天、桥梁工程、建筑建材等20多个工业领域都有广泛的应用。介绍了PBO纤维的性能特点、单体和聚合物合成及液晶纺丝制造工艺,综述了PBO纤维近30 a来在国内外发展的技术进展及其应用前景,并对今后国内PBO纤维的发展提出了一些建议。
Poly (p-phenylenebenzobisoxazole) (PB0) fiber is a new kind of fiber with high strength, high modulus, high thermal stability and high chemical resistance. It is widely used in the fields of high temperature filtration, electrical and electronics, synthetic materials, safety protection, Military, transportation, aerospace, bridge engineering, building materials, such as more than 20 industries have a wide range of applications. The properties of PBO fiber, synthesis of monomer and polymer and spinning process of liquid crystal were introduced. The technical progress and application prospects of PBO fiber in recent 30 years were reviewed. The future development of PBO fiber in China Some suggestions.