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激光选择性催化(LISA)技术可用于高分子的选择性电镀,本文主要研究了Pd/Sn催化系统在这个过程中的原理.实验表明在催化后的清洗步骤对电镀的选择性有很大影响,由于激光处理后在高分子表面产生了多孔结构,相对于在未被激光处理的表面上,Pd/Sn催化胶团需要更长的时间才能被清洗掉.本文中,采用扩散理论描述催化和清洗后在样品表面催化胶团的浓度分布,其中催化胶团在多孔介质中的扩散系数是研究的难点.采用NanosightR颗粒检测仪器测量胶粒的尺寸,用AliconaInfiniteFocus显微镜对激光处理后的表面多孔结构进行了测量和表征.最后测得催化胶团的浓度百分比曲线,可用于表征催化和清洗时间对浓度的影响.
Laser selective catalytic (LISA) technology can be used for the selective plating of polymers, this paper mainly studies the principle of Pd / Sn catalyst system in this process.Experiments show that the post-catalytic cleaning step has a great influence on the selectivity of electroplating Due to the porous structure on the surface of the polymer after laser treatment, the Pd / Sn micelles take longer to be washed out than the non-laser-treated surface.In this paper, diffusion theory is used to describe the catalytic and / After cleaning, the concentration of micelles on the surface of the sample was distributed, and the diffusion coefficient of the micelles in the porous medium was the most difficult to study.The size of micelles was measured by NanosightR particle detector, The surface porous structure was measured and characterized.Finally, the concentration percentage curve of the catalytic micelle was measured and used to characterize the influence of catalysis and cleaning time on the concentration.