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Super-hydrophobic nano particles as well as preparation method and application of nano particles

A nanoparticle and superhydrophobic technology, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve problems such as hidden health risks and difficult bonding of film-forming resins, and achieve stable reproduction, easy access to materials, and easy preparation process. Effect

Inactive Publication Date: 2018-04-10
中科检测技术服务(广州)股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, although particles containing elements such as silicon, fluorine, and nitrogen can obtain extremely low surface tension, while satisfying the superhydrophobic properties of the particles, it also brings the problem of difficulty in combining with the adhesive film-forming resin, especially Fluorine element, fluorine-containing particles have potential health hazards to the human body

Method used

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  • Super-hydrophobic nano particles as well as preparation method and application of nano particles

Examples

Experimental program
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Effect test

Embodiment 1

[0037] (1) Under the condition of keeping stirring throughout the whole process, 100 parts of ethanol, 10 parts of water, 5 parts of ethyl orthosilicate and 0 parts of coupling agent KH570 are added to the reactor in order to stir and mix in parts by mass. At the same time, start to heat up to the set reaction temperature of 60° C., then evenly add 4 parts of ammonia water (25% mass concentration, AR) dropwise, keep the constant temperature reflux reaction for 75 minutes after the dropwise addition, and the obtained solution is dispersion A;

[0038] (2), continue to add 8 parts of long-chain alkoxysilane dropwise to the dispersion A, keep the constant temperature reaction temperature set in step (1), the constant temperature reaction is over for 120 minutes, cool to room temperature, and the obtained is superhydrophobic nanoparticle dispersion.

[0039] The above-prepared coating solution (dispersion solution) is spread by conventional spraying or scraping method. After the l...

Embodiment 2～9

[0044] In Examples 2-9, the operating methods and steps adopted are consistent with those in Example 1, and the specific material ratios, process control parameters and results corresponding to the respective examples are shown in Table 1 and Table 3 for details.

[0045] Table 3 Physicochemical properties of nanoparticle dispersion

[0046]

[0047]

[0048] As can be seen from Table 2 and Table 3, the preparation method and application of a kind of super-hydrophobic nanoparticles of the present invention, by modifying and constructing the microstructure of silicon-containing nanoparticles, prepared a nanostructure that can be used to construct surface micro-nanostructures. nanoparticle dispersion. The dispersion particles have good resin compatibility, and can be well combined with adhesive film-forming resin components (such as water-based epoxy resin, water-based polyester resin, water-based alkyd resin, etc.), forming a functional The super-hydrophobic coating on t...

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Abstract

The invention discloses super-hydrophobic nano particles as well as a preparation method and application of the nano particles. The super-hydrophobic nano particles contain the following components inparts by weight: 100 parts of ethanol, 10 parts of water, 6 parts of tetraethoxysilane, 0-6 parts of a coupling agent KH570, 1-4 parts of ammonia water, and 8 parts of long-chain alkyl siloxane. Thepreparation method comprises the following steps: (1) under a stirring condition, uniformly mixing ethanol, water, tetraethoxysilane and the coupling agent, heating to 60-75 DEG C, then dropwise adding ammonia water, and then performing constant-temperature reflux reaction, thus obtaining a solution which is dispersing liquid A; (2) further dropwise adding long-chain alkyl siloxane to the dispersing liquid A to perform constant-temperature reflux reaction, and cooling to room temperature after reaction is ended, thus obtaining the super-hydrophobic nano particles. The super-hydrophobic nano particles can effectively meet the requirements for antifouling property of the surface of a material, and can be widely applied to industries and technologies and the industrial field such as electronic optical lenses, optical panels, surface drag reduction and surface pollutant prevention.

Description

technical field [0001] The invention belongs to the technical field of functional surface coating, and in particular relates to a superhydrophobic nanoparticle and its preparation method and application. Background technique [0002] Using functional nanoparticles to construct a surface coating with micro-nano structure on the surface of the substrate can significantly improve the performance of the material surface. For example, nano-plating on the paint surface of the car achieves brightening and hydrophobicity of the paint surface. , Anti-fouling performance; use epoxy combined with micro-nano particles to coat the surface of the substrate multiple times, construct an amphobic coating with a micro-nano structure on the surface of the metal substrate, and improve the self-cleaning and anti-fouling functions of the finished product, etc. etc. These are typical practical examples of nano-particles constructing micro-nano structured surfaces to realize functionalization of ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00B82B3/00C09D1/00C09D5/16B82Y30/00B82Y40/00
CPCB82B1/00B82B3/00B82Y30/00B82Y40/00C09D1/00C09D5/16
Inventor 靳焘陈晓丹陈远华陈玉放马倩贺立
Owner 中科检测技术服务(广州)股份有限公司
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