紫外光固化涂料的研制

研制了一种紫外光固化环氧丙烯酸酯涂料。讨论了光强度、光引发剂、预聚物等对涂料固化性能的影响     

基于深紫外激光器的大面积干涉光刻装置研究

搭建了基于266 nm波长深紫外光源的干涉光刻装置，使用平顶光整形器将高斯光整形成平顶光束，在硅基底上制备出面积为8.9 mm×25.4 mm、周期为407 nm的一维光栅结构图形和周期为860 nm的二维孔洞结构。使用扫描电子显微镜（SEM）测量了平顶光产生的一维干涉结构的线宽、周期等参数，并与高斯光产生的一维干涉结构参数进行对比。实验结果表明，加入了平顶光整形器的干涉光刻装置产生的周期性光栅结构图形均匀性提升了21.36％。     

Surface characterization of polyimide and polyethylene terephthalate membranes toward plasma and UV treatments

This study is to bring an overview on various methods regarding the surface treatment performed on different polymeric membranes in relation to a deference between the treatment mechanism and their chemical structure. Herein, plasma and UV surface treatments (PST and UST) were utilized to treat the surfaces of two commercial membranes, i.e., aromatic polyimide and polyethylene terephthalate for various durations using a discharge electrode and an UV LED curing system, respectively. Based on the effects of PST and UST processes on the surface of these membranes, their surface properties have been characterized to surface morphology and hydrophilicity (or wettability), at same time the changes have probably occurred on their surface during the PST and UST processes. As a result, their hydrophilic behavior was significantly enhanced after conducting these treatment processes based on the investigation of water contact angle. Moreover, Fourier-transform infrared and Raman spectroscopy manifested the changes in the chemical bonds, interactions and orientations of molecules, which confirmed the apparition and insertion of polar functional groups after the surface treatments, and accordingly, their wettability was enhanced significantly. Also, optical microscopy images showed direct impactions on their surface and the evidence of slight surface aging/damage during the treatment processes based on the presentation of the strange streaks on the treated surfaces. In particular, the peel forces exhibited an increase comparing to the initial membranes, which is characteristically for enhancing their adhesion behavior. Hence, these results are needful for improving the surface properties of a material, and obtaining better adhesion behavior on the membrane-like materials and recycling polymer materials.