Transportation of high-viscosity solutions with a rapid dynamic response is paramount for micro/nano-fabrication. A simple and effective method was proposed for transporting high-viscosity solutions based on the reciprocating Weissenberg effect, which avoids the problems of nozzle clogging and slow response. A reciprocating rotation of the rod for promoting the Weissenberg effect was proposed. Rods generated reciprocating rotary motion at different angles through an improved crank-rocker mechanism. The effect of solution concentration, rod diameter, and speed on solution climbing was investigated. To verify the solution transport capacity of this method, electrospinning and three-dimensional direct-write printing devices were constructed to prepare nanofibers and multilayer micro-nano structures, respectively. This method provides a simple route to transport high-viscosity solutions for applications in micro/nano-fabrication systems.

中文翻译：

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往复式魏森伯格效应，可在3D打印中传输高粘度溶液

具有快速动态响应的高粘度溶液的运输对于微/纳米加工至关重要。提出了一种基于往复式魏森贝格效应的简单有效的高粘度溶液运输方法，避免了喷嘴堵塞和响应慢的问题。提出了杆的往复旋转以促进魏森伯格效应。连杆通过改进的曲柄摇杆机构产生了不同角度的往复旋转运动。研究了溶液浓度，杆直径和速度对溶液爬升的影响。为了验证该方法的溶液传输能力，构建了静电纺丝和三维直写印刷设备，分别制备了纳米纤维和多层微纳米结构。