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Preparation method of super-hydrophobic super-oleophobic polymer nano-coating

A super-hydrophobic, super-oleophobic, and nano-coating technology, which is applied in coatings and other directions, can solve problems such as high equipment requirements, high energy consumption, and high pyrolysis temperature, and achieve excellent performance effects

Active Publication Date: 2018-07-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal surface modified by this method can be prepared with low surface energy coatings, but there is no nanostructure, and there are also problems such as high pyrolysis temperature, high energy consumption, and high equipment requirements.

Method used

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  • Preparation method of super-hydrophobic super-oleophobic polymer nano-coating
  • Preparation method of super-hydrophobic super-oleophobic polymer nano-coating
  • Preparation method of super-hydrophobic super-oleophobic polymer nano-coating

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Place the pretreated glass sheet as the base material on the sample stage in the cavity, and fix the base so that it is fully in contact with the bottom surface. Turn on the mechanical pump to evacuate the chamber to a vacuum state. Heating initiator perfluorobutylsulfonyl fluoride, reactive monomer 1H,1H,2H,2H-perfluorodecyl acrylate, crosslinker 2,4,6-trivinyl-2,4,6-trimethyl Cyclotrisiloxane; the flow rates of monomer and crosslinking agent are 0.1 sccm and 10 sccm respectively; the initiator flow rate is 0.5 sccm; the chamber pressure is 100 mTorr; the temperature of the hot wire is 150 °C; The distance between the warm-up source and the substrate material is 1 cm; the deposition thickness is 100 nm; the deposition time is 20 min; and the deposition rate is 5 nm / min. Such as figure 1 As shown, this figure is the Fourier transform infrared spectrogram obtained by the processing conditions of Example 1 of the polymer nano-coating film. It can be seen from this figur...

Embodiment 2

[0031] The base material in embodiment 1 is changed into cotton cloth; Monomer flow and linking agent flow are changed into 5sccm and 5sccm; Initiator uses benzoyl peroxide tert-butyl peroxide instead, and initiator flow is 5sccm; Other conditions are constant, The deposition thickness is 100 nm; the deposition time is 15 min; the deposition speed is 6.7 nm / min.

Embodiment 3

[0033] In Example 1, the substrate material was changed to PDMS membrane; the monomer flow rate and the crosslinking agent flow rate were changed to 10 sccm and 0.1 sccm; the initiator was changed to perfluorooctanesulfonyl fluoride, and the initiator flow rate was 10 sccm. Other conditions remain unchanged, the deposition thickness is 100nm; the deposition time is 10min; the deposition rate is 10nm / min.

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Abstract

The invention discloses a preparation method of a super-hydrophobic super-oleophobic polymer nano-coating. The polymer nano-coating is a film of a fluorine-containing acrylate-based polymer and has anano-structure. The preparation method is an initiating chemical vapor deposition method and comprises putting a base into a reaction chamber, vacuumizing the reaction chamber to a vacuum state, feeding a precursor comprising an initiator, a crosslinking agent and a monomer into the chamber, and making pressure, a heat source temperature, a distance between a heat source and a base, and a base temperature reach to preset values, wherein the initiator gas molecules in the chamber can crack at a high temperature into primary radicals and the primary radicals and a monomer adsorbed on the surfaceof the sample undergo an in-situ polymerization reaction to produce a polymer film. Through adjustment of conditions, the nano-topography of the nano-coating is adjusted. The super-hydrophobic super-oleophobic polymer nano-coating prepared through the preparation method has excellent super-hydrophobic super-oleophobic effects and can be used in the fields of electronic devices, medical equipment,bio-bionics, textiles and garments.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic and superoleophobic polymer nanostructure coating, in particular to a chemical vapor phase preparation method and application of a fluorine-containing acrylate polymer coating with a surface nanoarray structure. Background technique [0002] Materials with a surface contact angle greater than 150° are called superhydrophobic and superoleophobic surfaces, that is, various types of liquid droplets such as water, oil, and surfactant can appear close to a spherical state on the surface. will roll off. Superhydrophobic and superoleophobic surfaces have unique properties such as anti-adhesion, anti-pollution, and self-cleaning, and have great potential application value in life and production. Through the research, it is found that there are two main factors that affect the superphobic phenomenon of the material surface: ① chemical composition with low surface energy; ② the surface has a ce...

Claims

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Application Information

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IPC IPC(8): C09D143/04C09D135/02C08F220/24C08F230/08C08F222/14C08F2/34
CPCC09D135/02C09D143/04C08F2/34C08F220/24C08F222/102C08F230/08
Inventor 叶羽敏石枭孙敏
Owner NINGBO UNIV
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