Optical 3D μ-printing of polytetrafluoroethylene (PTFE) microstructures
Optical 3D μ-printing of polytetrafluoroethylene (PTFE) microstructures
复制标题
聚四氟乙烯 (PTFE) 微结构的光学 3D μ 打印
DOI：
10.1109/memsys.2018.8346475
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
H. Tam
中科院分区：
文献类型：
--
作者：
Yangxi Zhang;M. Yin;Ouyang Xia;A. Zhang;H. Tam
本文报道了一种利用光学无掩模曝光和热分解技术对聚四氟乙烯（PTFE）微结构进行3D微打印的新方法。将聚四氟乙烯纳米颗粒与聚合物单体混合，形成可紫外光固化的胶体混合物，利用光学无掩模曝光系统逐层固化，形成三维微观结构。对其微观结构进行干燥和烧结，去除除聚四氟乙烯外的溶剂和其他聚合物。首次制备了具有数十至数百纳米孔的三维聚四氟乙烯微结构。利用聚四氟乙烯的超疏水性，制备了仿生昆虫，以证明其具有超强的水面承载能力。可打印聚四氟乙烯微结构在医疗植入物、化学惰性微反应器/过滤器和微流体控制应用中具有巨大的潜力。
This paper reports a novel 3D micro-printing (μ-printing) method for polytetrafluoroethylene (PTFE) microstructures by using optical maskless exposure and thermal decomposition technologies. PTFE nanoparticles were mixed with polymer monomer to form a UV curable colloidal mixture, which can be cured layer-by-layer to form 3D microstructures by using an optical maskless exposure system. The micro structure s were dried and sintered to remove solvent and other polymer except PTFE. 3D PTFE microstructures with nanopores ranging from tens to hundreds of nanometers were fabricated for the first time. Based on its super-hydrophobic property, PTFE bionic insect was fabricated to demonstrate the super weight-carrying ability on the water surface. The printable PTFE microstructures have great potential in medical implants, chemically inert micro reactors/filters, and microfluidics control applications.
影响因子：
14
作者：
Cuchiara, Michael P.;Allen, Alicia C. B.;West, Jennifer L.
通讯作者：
West, Jennifer L.