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,

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
Comparison scheme
Effect test

Example Embodiment

[0028] Example 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 in full contact with the bottom surface. Turn on the mechanical pump to pump the chamber to a vacuum state. Heating initiator perfluorobutanesulfonyl fluoride, reactive monomer 1H,1H,2H,2H-perfluorodecyl acrylate, crosslinking agent 2,4,6-trivinyl-2,4,6-trimethyl Cyclotrisiloxane; monomer and crosslinking agent flow rates are 0.1sccm and 10sccm respectively; initiator flow rate is 0.5sccm; cavity pressure is 100mTorr; hot wire temperature is 150°C; substrate temperature is 20°C; hot wire The distance between the warm-up source and the base material is 1cm; the deposition thickness is 100nm; the deposition time is 20min; and the deposition rate is 5nm / min. Such as figure 1 As shown, the figure is the Fourier infrared spectrum of the polymer nano-coating film obtained through the process conditions of Example 1. It can be seen from this...

Example Embodiment

[0030] Example 2

[0031] The base material in Example 1 was changed to cotton cloth; the monomer flow rate and the crosslinking agent flow rate were changed to 5 sccm and 5 sccm; the initiator was changed to tert-butyl benzoyl peroxide, and the initiator flow rate was 5 sccm; other conditions remained unchanged. The deposition thickness is 100nm; the deposition time is 15min; and the deposition rate is 6.7nm / min.

Example Embodiment

[0032] Example 3

[0033] The base material in Example 1 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 perfluorooctyl sulfonyl fluoride, and the initiator flow rate was 10 sccm. Other conditions remain unchanged, the deposition thickness is 100nm; the deposition time is 10min; and the deposition speed 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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