摘要
研究了O2、N2、He、Ar、H2和CH4气体低温等离子体改性聚酯（PET）的表面润湿性与表面结构的关系．用已知表面张力的液体测定接触角，作Zisman曲线，求得试样的临界表面张力γc；并按扩展的Fowkes式计算试样的表面张力γs及其三组分值γ（色散力）、γ（偶极矩力）和γ（氢键力），发现经O2、N2、He和Ar等离子体短时间处理的聚酯表面自由能显著增大，表面润湿性增强，主要是聚酯表面张力的氢键力成分的贡献，X射线光电子能谱分析表明，这是由于聚酯表面含氧或含氮极性基团增加所致．
The surface wettability and surface structure of polyester treated with low temperature plasma in O2, N2, He, Ar, H, and CH4 gases are studied. The contact angles of the samples were measured and the critical surface tension yc was determined on the basis of the Zisman's plots- Furthermore, the values of non-polar dispersion force Ys, dipole force γsband hydrogen bonding force to the surface tensions for the plasma-treated samples were evaluated by the extended Fowkes equation. Mainly because of the contribution of hydrogen bonding force, the surface free energy and surface wettability of polyester which was treated with O2, N2, He and Ar for a short time increased greatly. X-ray photoelectr0n spectroscopy (XPS) shows that the reason was the increase of O2 0r N2 polar functional group on the surface of polyester.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第3期466-471,共6页
Chemical Journal of Chinese Universities
基金
国家教育委员会优秀年轻教师基金
中国纺织总会科技三项费用及陕西省自然科学基金
