丝织物的大气压等离子体液相沉积处理  

Modification of silk fabric via atmospheric pressure plasma liquid deposition

作　　者：蒋晓梅[1] 陈国强[1] 芮延年[1] 刘开强[1] 

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215021

出　　处：《纺织学报》2009年第11期88-92,共5页Journal of Textile Research

摘　　要：为提高丝织物表面的拒水、拒油性能,较好地控制沉积涂层的质量,将等离子体与液态沉积液结合,采用介质阻挡放电装置,利用高频高压电源在大气压下通入惰性气体氦(He)产生辉光放电等离子体,通过超声喷嘴将液相单体雾化并喷射入等离子体区域,使之在处理物表面上进行等离子体沉积聚合。应用此工艺对丝织物处理,将全氟庚烷单体经过超声雾化,注入大气压辉光放电区域中,实现了在丝织物表面沉积拒水性涂层。通过SEM观察和ATR-FTIR以及接触角测量,分析处理前后纤维表面形态和结构的变化,得出在不同工艺参数下丝织物表面的全氟庚烷沉积率变化规律。结果表明,纤维表面成功沉积致密膜层,织物表面水接触角增大,拒水性能得到极大的改善。In order to improve water and oil repellent properties of the silk fabric surface and better control the quality of deposition coating, this paper combines plasma with deposition of liquid. Uniform glow discharge forms at atmospheric pressure with a dielectric barrier discharge （DBD） in helium （He） using high frequency and high voltage power supply. Ultrasonic nozzle atomizes and sprays mist droplets containing liquid monomer directly into the plasma region to complete plasma deposition polymerization on the surface of the substrate. This technology was adopted to treat the silk fabric and ultrasonic atomization of perfluoroheptane monomer was sprayed into an atmospheric pressure glow discharge （APGD） region, leading to the deposition of the hydrophobic film on the silk fabric. The changes of fiber surface morphology and structure were analyzed by using ATR-FTIR,SEM and contact angle measurement. The influences of different processing parameters on change of deposition degree of perfluoroheptane were obtained. After treatment, dense film has been deposited onto fiber surface successfully. Water contact angle and hydrophobicity of the silk fabric surface are enhanced greatly.

关 键 词：大气压辉光放电 超声雾化 丝织物 全氟庚烷 沉积率 

分 类 号：TQ342.61[化学工程—化纤工业]