摘要
采用空气辉光低温等离子体技术对聚酰亚胺(PI)纤维进行表面改性,利用扫描电镜(SEM)、X射线光电子能谱仪(XPS)等方法探讨了改性前后纤维表面形态结构和组成的变化.实验表明,通过低温等离子体处理后,纤维表面产生了不同程度的溅射刻蚀和化学微刻蚀,纤维表面摩擦系数、亲水性都有了明显提高;X射线光电子能谱分析表明,经等离子体处理后,纤维表面被刻蚀并且增加了极性基团和纤维表面价键峰(O1s/C1s)比例所致.不同处理条件下的聚酰亚胺(PI)纤维的断裂强力和断裂伸长率也做了讨论.
The performance of the polyimide （PI） fiber was investigated by low temperature glow discharge plasma in this paper. According to observe of scanning electron microscope （ SEM）, the surface roughness degree of PI fiber increase after treated by low temperature plasma. The experimental results show that under the treatment of different plasma conditions, the PI fiber surfaces appear the varying degree physics and chemical etching. It＇s found that the friction coeiticient and hydrophilicity of PI fiber treated by low temperature plasma improve obviously. X-ray photoelectron spectroscopy （XPS） shows that the reason is the etching and the increase of the ratio 01s/C1s on the surface of PI fiber. Variations of tensile breaking strength of PI with different parameters are analyzed.
出处
《西安工程大学学报》
CAS
2009年第2期136-140,共5页
Journal of Xi’an Polytechnic University
基金
Supported by Key Science Research Foundation of Office of Education of Shannxi Province(08JZ25)
Special Foundation Item of the Key Academic Subjects Development of Shaanxi Province([2008]169)
关键词
亲水性
表面改性
低温等离子
聚酰亚胺纤维
hydrophilicity
surface modification
low temperature plasma
polyimide
