RF等离子体聚合类聚氧化乙烯(PEO-like)功能薄膜研究

采用射频等离子体，以乙二醇二甲基醚（Ethylene Glycol Dimethyl Ether）为聚合单体，用氩气作为工作气体，合成类聚氧化乙烯（PEO-like）官能聚合物。实验采用连续和脉冲射频等离子体两种放电模式聚合PEO功能薄膜，研究了等离子体放电参数：等离子体放电功率、工作气压、放电模式（连续或脉冲）和聚合时对聚合物表面结构、官能团含量以及表面特性等影响。利用接触角测试仪、表面张力仪、傅里叶变换红外光谱（FTIR）、膜厚仪和X-射线光电子能谱（XPS）等多种手段对聚合薄膜的组成、结构和性能进行了表征。结果表明，较小的功率以及较长的脉冲条件下有利于EO基团的形成。     

射频等离子体聚合SiOx薄膜的研究

在射频等离子体放电条件下，以六甲基二硅氧烷（Hexamethyldisilone，HMDSO）为单体，氧气为反应气体，在PET薄膜及载玻片上聚合SiOx薄膜。通过红外光谱（FTIR）分析了工作压强、功率、单体氧气比、聚合时间等对聚合薄膜的结构和沉积速度的影响；通过扫描电子显微镜（SEM）观察了薄膜的表面形貌；通过表面轮廓仪测试了薄膜厚度，计算了沉积速率并对薄膜的均匀性做了研究。在38％恒温水浴箱中进行的水蒸汽阻隔实验表明，PET薄膜的阻隔性能得到有效的提高。     

激光直接印版的研制及应用

目前,绝大多数小胶印机的版材是氧化锌版和PS版。其制版工艺,对氧化锌版为:(1)用激光印字机出纸样,(2)拼版,(3)静电制版,(4)修版,(5)固版。即获得可上机印刷的印版。这种版的优点是经济,简单,但是耐印力低,印刷质量低;对PS版其制版工序为:(1)由激光照排机或激光印字机出阳图软片,(2)拼版,(3)晒版,(4)显影,(5)定影,(6)烘干,即得到可上印刷机印刷的印版。这种版质量好.耐印力高,但是价格贵,制版费用也高。两种版的共同特点是制版周期长,工艺复杂。 另一方面,随着科学技术的发展和社会需要量的增加,电子计算机排版技术获得了突飞猛进的发展,远远走在了前面。同时,各种型号,规格的印刷机也有了很大发     

离子源辅助电子束沉积凹印版耐磨层

针时凹印版电镀存在的污染和高能耗，采用射频感应偶合（ICP）离子源辅助电子束沉积硬质铬耐磨层，通过控制离子源参数和加入过渡层来提高薄膜与基体的结合力和显微硬度。利用扫描电镜、原子力显微镜、显微硬度计、划痕仪、表面轮廓仪，摩擦磨损仪对膜层的组织结构和性能进行了研究，探讨了在薄膜沉积过程中，离子源工艺参数对薄膜界面结合机理，组织结构和性能的影响。     

中频DBD等离子体聚合马来酸酐薄膜的研究

用马来酸酐乙醇溶液为单体,采用脉冲介质阻挡放电(DBD)合成聚马来酸酐薄膜,研究了放电的不同频率,聚合的区域对聚合薄膜性能的影响。通过对薄膜性能的表征:接触角、红外光谱、表面形貌、薄膜厚度,发现在频率为80 kHz,气压50 Pa能聚合表面连续致密的聚马来酸酐薄膜,薄膜的生长速率为8 nm/min。     

Deposition of SiOx on Metal Surface with a DBD Plasma Gun at Atmospheric Pressure for Corrosion Prevention

In this study, SiOx films were deposited by a dielectric barrier discharge （DBD） plasma gun at an atmospheric pressure. The relationship of the film structures with plasma powers was investigated by Fourier transform infrared spectroscopy （FTIR）, and scanning electron microscope （SEM）. It was shown that an uniform and cross-linking structure film was formed by the DBD gun. As an application, the SiOx films were deposited on a carbon steel surface for the anti-corrosion purpose. The experiment was carried out in a 0.1 M NaCl solution. It was found that a very good anti-corrosive property was obtained, i.e., the corrosion rate was decreased c.a. 15 times in 5% NaCl solution compared to the non-SiOx coated steel, as detected by the potentiodynamic polarization measurement.     

Three Kinds of Films Obtained from Plasma Polymerization of Octamethylcyclotetrasioxane

Three kinds of “Films” i.e. cross-linked film,grainy film and transparent film.were obtained in the process of plasma polymerization of Octamethylcyclotetrasioxane(D4) under different conditions.From SEM photos,we can see that the cross-linked film has a network form.From XPS spsectra.we can see that the content of Si-C bond of the cross-linked film is lower than that of the transparent film,and this result agrees well with the test results of FTIR spectra,This proves that the cleavage of the Si-C bond and C-H bond are the main cleavage in the formation of cross-linked film,whereas the cleavage of the Si-O is the main cleavage in the formation of transparent film.In order to enhance the collision of the reactive particles and invertigate the influence of magnetic field on the plasma polymerization,we introduced the magnetic field,as a result ,we got the grainy film.     

Investigation of Plasma Polymerized Maleic Anhydride Film in a Middle Frequency Dielectric Barrier Discharge

Plasma polymerized maleic anhydride （MA） was carried out by using maleic anhydride supersaturated ethanol solution as a precursor in a dielectric barrier discharge （DBD）. The film properties were characterized by water contact angle （WCA）, Fourier transfer infrared （FTIR）, X-ray photoelectron spectroscopy （XPS）, atomic force microscope （AFM） analysis, and a thickness profilometer. The influence of the processing parameters on the film properties such as tile power frequency and polymerization zone was investigated. The results show that anhydride group incorporated into the growing films is favorable at the frequency of 80 kHz and working pressure of 50 Pa. The poly （maleic anhydride） film is uniform and compact at an average deposition rate of 8 nm/min.