Atmospheric Plasma Characterization and Mechanisms of Substrate Surface Modification
Atmospheric Plasma Characterization and Mechanisms of Substrate Surface Modification
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大气等离子体表征及基材表面改性机制
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发表时间：
2007
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通讯作者：
C. Cornelius
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作者：
C. Cornelius
卡丽·伊丽莎白·科尼利厄斯。大气压等离子体表面改性的表征与机理。（在穆罕默德·A的指导下）作者声明：Marian G. McCord）。本研究的目的是表征用于纺织材料表面改性和功能化的大气压等离子体装置的参数。在不存在和存在衬底的情况下确定器件参数以量化最佳操作条件。中性气体的温度分布确定了各种气体混合物，包括100%的氦气和氦气与1或2%的反应气体，如氧气和四氟化碳。建立了等离子体模型，求解了电子与中性粒子的碰撞频率和电子数密度等参数。用各种气体混合物处理羊毛基材一系列暴露持续时间，并评估等离子体处理对重量、表面功能性和强度的影响。评估方法包括重量变化百分比计算、能量色散X射线光谱（EDS）和拉伸试验。此外，将纤维素纸暴露于1%氧等离子体以确定永久接枝抗微生物剂HTCC（季铵化壳聚糖）的可行性。采用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、比色法和重量变化百分比测试粘合剂的成功性，并通过索氏提取测试粘合剂的持久性。大气压等离子体对基体表面改性的表征及机理
CORNELIUS, CARRIE ELIZABETH. Atmospheric Plasma Characterization and Mechanisms of Substrate Surface Modification. (Under the direction of Mohamed A. Bourham and Marian G. McCord). The purpose of this research has been to characterize the parameters of an Atmospheric Plasma Device used for surface modifications and functionalization of textile materials. Device parameters are determined in absence and presence of a substrate to quantify the optimal operational conditions. Neutral gas temperature profiles were determined for a variety of gas mixtures including 100% helium and helium with 1 or 2% reactive gases, such as oxygen and carbontetrafluoride. A plasma model was developed to solve for other plasma parameters including the electron-neutral collision frequency and the electron number density. Wool substrates were treated with various gas mixtures for a range of exposure durations and the effects of plasma treatment on weight, surface-functionality, and strength were assessed. Assessment methods include percent weight change calculations, energy dispersive X-ray spectroscopy (EDS), and tensile testing. In addition, cellulosic paper was exposed to 1% oxygen plasma to determine the feasibility of permanently grafting the anti-microbial agent HTCC (quaternized ammonium chitosan). The success of the bond was tested using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), colorimetry, and percent weight change, and the permanency of the bond was tested though soxhlet extraction. Atmospheric Plasma Characterization and Mechanisms of Substrate Surface Modification