DBD等离子体处理对芳纶织物结构性能的影响

Effects of DBD Plasma Treatment on the Structure and Properties of Aramid Fabric

为改善芳纶织物增强复合材料的界面黏结性能,采用常压氦-氧介质阻挡放电(DBD)等离子体处理对芳纶织物进行表面改性,研究氧气流量变化对织物等离子体处理效果的影响.通过测试处理前后芳纶织物的表面形貌、结构组成、润湿性能、粗糙度和拉伸性能来表征等离子体的改性效果.结果表明:DBD等离子体处理后,芳纶纤维的表面经过刻蚀,粗糙程度明显增加;纤维的化学组成没有显著变化,仅CO等极性基团有所增加;芳纶织物的润湿性显著改善;拉伸性能略有提高.综合考虑,氧气流量为10mL/min时处理效果较好.

To improve the interfacial bonding properties of aramid fabric reinforced composites,the helium-oxygen dielectric barrier discharge（DBD） plasma treatment at atmospheric pressure was used for surface modification of aramid fabric,investigating the effects of different oxygen flows on plasma treatment of fabric.The treatment effects were characterized by surface morphology,structure components,wettability,roughness and tensile properties of aramid fabric before and after plasma treatment.The results showed that the surface roughness of aramid fabric was enhanced significantly after plasma treatment.Then the structure components didn＇t change largely,only some polar groups,for example,C =O increased.Moreover,the wettability was improved obviously and the tensile properties increased slightly.In conclusion,the comprehensive treatment effects of the oxygen flow of 10 mL/min was better.