含氟硅烷成分介质阻挡放电PET材料表面改性研究  

Study on PET Surface Modification by DBD with Fluorinated Silane

作　　者：毛舒驰 

机构地区：[1]南京工业大学电气工程与控制科学学院,江苏南京211816

出　　处：《塑料科技》2017年第10期39-43,共5页Plastics Science and Technology

摘　　要：采用十七氟癸基三甲氧基硅烷(FAS-17)作为改性剂,在电源电压13 kV、频率8.3 kHz条件下通过介质阻挡放电(DBD)对聚对苯二甲酸乙二醇酯(PET)材料进行表面改性处理,以表面接触角、表面能为指标衡量材料表面的性能,并对处理前后材料的外观形貌、表面化学成分等进行分析。结果表明:表面改性处理后,PET材料的表面疏水性得到提升。在处理时间为2 min时,材料表面接触角较大,处理5 min时达到最大值。材料表面形成氟化层,刻蚀作用较弱,材料表面的抗渗性得到改善。当处理时间增加到8 min时,表面接触角反而变小,此时材料表面刻蚀作用较强,氟化层被剥离,材料的吸湿性得到改善。Using seventeen fluorine decyl trimethoxysilane（FAS-17） as modifier, the surface of polyethylene terephthalate（PET） material was modified by dielectric barrier discharge（DBD） at a power supply voltage of 13 kV and the frequency of 8.3 kHz. The surface properties of the material was measured with surface contact angle and surface energy as the indexes, and appearance of materials and the chemical composition of the surface before and after treatment were analyzed. The results show that the hydrophobicity of PET can be improved. When the treatment time is 2 min, the surface contact angle becomes larger, then reaches the maximum when treatment time is 5 min. The fluorinated layer is formed on the surface of the material, and the etching performance is weak. When the treatment time is increased to 8 min, the surface contact angle becomes smaller, and the surface of the material has a stronger etching effect, the fluorinated layer is stripped, and the moisture absorption of the material is improved.

关 键 词：聚对苯二甲酸乙二醇酯 介质阻挡放电 表面氟化 刻蚀 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]