论文标题
通过喷墨打印铆钉干燥的线性颗粒沉积的形态控制
Morphological Control of Linear Particle Deposits from the Drying of Inkjet-Printed Rivulets
论文作者
论文摘要
我们研究了通过在接触线降低的干燥条件下的二氧化硅纳米颗粒悬浮液的喷墨印刷中获得的线性颗粒沉积物的形态。我们表明，可以通过调节不同溶剂中的颗粒浓度来获得这种蒸发模式。对于孤立的滴，手动或通过喷墨打印沉积，干燥会诱导两个同心环的形成，其中颗粒自组装成单层。对于融合液滴，我们的主要结果是稳定的铆钉可以通过干燥后的滴重叠形成，形成由由自组装的粒子单层组成的三个平行线形成。这三条线是均匀的厚度，有两个非常薄的外线（〜1 $μ$ m宽）和更宽的中心线（〜20 $μ$ m宽）。我们揭示了所得线的宽度如何通过可预测的方式来影响大型实验窗口，以了解跌落尺寸。
We studied the morphology of linear particle deposits obtained by inkjet-printing of silica nanoparticle suspension in drying condition where contact line depinning occurs. We show that this evaporation mode can be obtained by adjusting the particle concentration in different solvents. For isolated drops, deposited manually or by inkjet printing, drying induces the formation of two concentric rings in which particles self-assemble into a monolayer. For fused drops, our main result is that stable rivulets could be formed by drop overlap leading, after drying, to the formation of three parallel lines composed of a self-assembled particle monolayer. The three lines are of homogeneous thickness with two very thin outer lines (~ 1 $μ$m width) and a wider central line (~ 20 $μ$m width). We reveal how the width of the resulting lines is influenced by drop spacing in a predictable manner for a large experimental window knowing the drop size.
