Effect of electrode size on jet plasma discharge and its application in the study of polyester hydrophilicity
The generation and regulation of hydroxyl active particles in pulsed dielectric barrier plasma jet discharge is of great importance for the application of plasma in material surface modification,and the formation and regulation of hydroxyl active particles are closely related to the discharge structure.Therefore,the effect of ground electrode width on the plasma of atmospheric pressure pulsed discharge jet was investigated,and its effect on the jet length,discharge intensity was explored by varying the ground electrode width,and the spatial and temporal evolution of the discharge was analyzed by an enhanced charge-coupled device(ICCD);the characteristic spectral lines generated by the discharge were analyzed by emission spectroscopy.The results show that the jet length is the longest when the width of the grounded electrode is 1.5 cm;there is a strong concentration of hydroxyl active particles at 3 mm of the jet.And the positive correlation between the hydroxyl oxygen-containing groups in the gas-phase plasma and the hydrophilic treatment results of polyester surface was verified by using atmospheric pressure pulsed jet plasma to treat the polyester fabric surface,which provides a reference for the control of active particles in the plasma and the development of industrial plasma sources.
atmospheric pressure jet dischargeelectrode widthreactive particlesoxygen-containing groups
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万方数据
维普
