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Title:
PREPARATION METHOD FOR WEAR-RESISTANT SUPER-HYDROPHOBIC COATING ON SURFACE OF SAMPLING NEEDLE
Document Type and Number:
WIPO Patent Application WO/2022/105324
Kind Code:
A1
Abstract:
A preparation method suitable for a wear-resistant super-hydrophobic coating on the surface of a sampling needle, comprising: first building a micron-sized coarse structure on the surface of a sampling needle by using a cathode-coated three-electrode dynamic coaxial etching method; then preparing a polytetrafluoroethylene (PTFE) film on the surface of a sampling needle substrate with the micron-sized coarse structure by using a dip-coating film forming method; and after heat treatment, making the surface of the sampling needle in a rolling super-hydrophobic state.

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Inventors:
SUN LIDONG (CN)
ZHAO KAIQI (CN)
Application Number:
PCT/CN2021/112809
Publication Date:
May 27, 2022
Filing Date:
August 16, 2021
Export Citation:
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Assignee:
CHONGQING UNINVERSITY (CN)
International Classes:
G01N35/10; B05D5/08
Foreign References:
CN112547462A2021-03-26
CN110359044A2019-10-22
CN102346195A2012-02-08
CN101566549A2009-10-28
CN110938860A2020-03-31
Attorney, Agent or Firm:
CHONGQING JINYUN PATENT AGENCY OFFICE (LIMITED LIABILITY PARTNERSHIP) (CN)
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