Optical 3D μ-printing of polytetrafluoroethylene (PTFE) microstructures

Yangxi Zhang, Mingjie Yin, Ouyang Xia, Aping Zhang, Hwa Yaw Tam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

11 Citations (Scopus)


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.
Original languageEnglish
Title of host publication2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
Number of pages4
ISBN (Electronic)9781538647820
Publication statusPublished - 24 Apr 2018
Event31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018 - Belfast, United Kingdom
Duration: 21 Jan 201825 Jan 2018

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999


Conference31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
Country/TerritoryUnited Kingdom

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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