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本文提出了一种利用硅橡胶模板对二氧化硅纳米粒子进行图形化组装的方法.首先,采用浇筑法制备了硅橡胶基底并通过激光打标机加工制备了铜掩膜板,然后对覆盖铜掩膜板后的硅橡胶基底进行金属金的溅射以得到硅橡胶模板.二氧化硅纳米粒子采用改进的Stober方法制备,然后采用离心旋涂方式涂覆到硅橡胶模板表面.由于硅橡胶模板表面具有图形化的亲水和疏水区域,而且金表面的皱化也具有不同的亲水性,纳米粒子将经历两次去湿过程,最终围绕金图形化区域形成环状分布.
This paper presents a silicon rubber template for the graphical assembly of silica nanoparticles.First, the use of pouring method prepared silicone rubber substrate by laser marking machine prepared copper mask, and then covered with copper After the mask of the silicone rubber substrate sputtering metal gold to obtain a silicone rubber template silica nanoparticles prepared using a modified Stober method and then spin-spin coating applied to the surface of the silicone rubber template due to the silicone rubber template The surface has a pattern of hydrophilic and hydrophobic regions, and the wrinkled gold surface also has a different hydrophilicity. The nanoparticles will undergo two dehumidification processes, eventually forming a ring-like distribution around the gold patterned area.