氧气低温等离子体对PBO纤维的表面改性  

Surface modification of PBO fiber with low-temperature oxygen plasma

作　　者：刘丹丹[1] 

机构地区：[1]长江大学机械工程学院,湖北荆州434023

出　　处：《合成纤维工业》2009年第6期25-27,共3页China Synthetic Fiber Industry

摘　　要：采用氧气低温等离子体对聚对苯撑苯并双噁唑(PBO)纤维进行表面改性,讨论了处理时间、处理功率及气压对PBO纤维单丝强度、与环氧树脂基体的界面剪切强度(π_(IFSS))、形态结构、表面元素组成和亲水性的影响。结果表明:在处理时间为2.5 min,处理功率为30 W,处理气压为50 Pa的最佳工艺条件下,经氧气等离子处理后的PBO纤维与环氧树脂的π_(IFSS)比原丝提高60%,达9.38 MPa,与水的接触角也从105°下降到72°。The surface modification of polybenzoxazole （PBO） fiber was carried out with low-temperature oxygen plasma. The effects of treating time, power and pressure on the single-strand strength, interracial shearing strength （TIFSS ） with epoxy resin matrix, morphology, surface elemental composition and hydrophilicity of PBO fiber were discussed. The results showed that after low-temperature oxygen plasma modification under the optimal process conditions of treating time 2.5 min, power 30 W and pres- sure 50 Pa,TIFSS of PBO fiber with epoxy resin reached 9.38 MPa with a growth of 60% and the contact angle with water was decreased to 72° from 105°as compared with as-spun PBO fiber.

关 键 词：聚对苯撑苯并双噁唑纤维 氧气 低温等离子体 界面剪切强度 亲水性 

分 类 号：TQ340.654[化学工程—化纤工业]