N_2等离子体接枝处理丙纶改性及染色的初步研究

Elementary study for modification and dyeing of polypropylene fiber by N_2 plasma and graft treatment

本研究用氮气等离子体固相表面修饰改性对丙纶纤维进行表面处理。用傅立叶变换红外光谱分析改性前后样品表面官能团变化,用扫描电镜分析改性前后样品表面的形貌变化,用紫外可见分光光度计测试样品的上染率。结果表明:等离子体表面处理及丙烯酸接枝后的丙纶纤维表面引入了羰基、胺(氨)基或酰胺等活性基,使丙纶纤维从不可上染到能染上鲜艳的阳离子艳兰,显著改善了丙纶纤维的染色品质。

A method to improve the dyeing property of polypropylene （PP） fiber surface by nitrogen （N2） plasma treatment and acrylic acid （AA） grafting is presented. The surface modification was characterized by Fourier transformed infrared spectra （FTIR） to analyze changes of chemical groups, and the PP fiber morphological appearance changes were verified by scanning electronic microscope （SEM） as well as subsequent dyeing ratio thereby was determined by ultraviolet-visible spectra （UV spectrometer） detection. The results demonstrated that N2 plasma treatment and AA grafting facilitated reactive groups （such as carbonyl group, amine group or amide group, etc） generation on PP surface, which was ameliorated to be conveniently dyed or colored with bright-colored basic blue 54 dyestuff. The investigation demonstrates an amelioration method of PP fiber surface dyeing property from inert to active.