略谈喷墨CTS系统

自我接触网版印刷以来，网印制版工艺和软片密不可分。其过程简言之，就是将已按网印要求制作好的软片放在涂好感光胶并已干燥的网版上，利用晒版台对其进行紫外线曝光。软片上透明部分不遮光，感光胶见光硬化，而未见光即未硬化的地方则可用水冲洗掉。曝光完成后，用水冲版，即显出要印刷的图文，一块网版就做好了。     

Plasma Modified Polypropylene Membranes as the Lithium-Ion Battery Separators

To reduce the thermal shrinkage of the polymeric separators and improve the safety of the Li-ion batteries,plasma treatment and plasma enhanced vapor chemical deposition（PECVD）of SiO_x-like are carried out on polypropylene（PP）separators,respectively.Critical parameters for separator properties,such as the thermal shrinkage rate,porosity,wettability,and mechanical strength,are evaluated on the plasma treated PP membranes.O₂ plasma treatment is found to remarkably improve the wettability,porosity and electrolyte uptake.PECVD SiO_x-like coatings are found to be able to effectively reduce the thermal shrinkage rate of the membranes and increase the ionic conductivity.The electrolyte-philicity of the Si Ox-like coating surface can be tuned by the varying O₂ content in the gas mixture during the deposition.Though still acceptable,the mechanical strength is reduced after PECVD,which is due to the plasma etching.     

氧化硅阻隔膜的制备及对水蒸气的阻隔特性研究

利用强流电子束蒸发技术在厚度为12μm的PET基材上制备了阻隔性能优良的高阻隔SiOx薄膜.所制备的SiOx薄膜无色透明,与基材附着牢固;PET基材上的SiOx薄膜厚度不同,对水蒸气的阻隔性能不同.膜厚为340～3200nm时,阻隔性能可提高1～32倍.通过控制真空度和蒸发速率等参数可以控制SiOx薄膜的有关性能.