Method for manufacturing ultra-thin nano-coating for surface modification of organic polymer material

An organic, ultra-thin technology, applied to the device and coating of the surface coating liquid, which can solve the problems of uncoatable film and difficult application

Inactive Publication Date: 2013-04-03
上海迪道科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Colloidal sol usually adopts processes such as soaking and pulling, uniform gel filming and other processes to prepare films. A common defect of these methods is that they are only suitable for two-dimensional flat coatings, and cannot be coated on three-dimensional substrates.
[0005] Sol film formation is usually cured at a higher temperature. Organic thin films are generally cured at 130 to 200 degrees, and inorganic thin films are generally cured at 500 to 600 degrees. Even at 130 degrees, many commonly used organic polymer materials may occur. Softening and deformation; at a temperature below 100 degrees, it is an applicable and difficult challenge to form a sol into a film and solidify it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1) Hydrolyze butyl titanate and ethyl silicate to form a transparent silicon-titanium composite sol with a concentration of 0.1mol / L;

[0016] 2) Add zirconium oxychloride hydrolyzate to keep the pH value of the sol at 2-3;

[0017] 3) Add 1% acrylic resin as a blocking agent;

[0018] 4) Add 1% polyvinyl alcohol as a solubilizer of the sol, and increase the concentration of the sol under the premise of avoiding the agglomeration or growth of the sol particles;

[0019] 5) Add 0.1% organic fluorine resin to reduce the surface tension of the sol and improve the self-leveling performance;

[0020] 6) Compress and atomize the above-mentioned sol with a high-pressure spray gun, and spray it on the surface of the polycarbonate substrate with a three-dimensional structure;

[0021] 7) After 30 minutes of aging, a uniform and transparent film is formed on the surface of the polycarbonate substrate;

[0022] 8) Bake in a 100-degree oven for 30 minutes to make the film gel an...

Embodiment 2

[0025] 1) Hydrolyze the ethyl silicate prepolymer with zirconium oxychloride solution to form a transparent silica sol with a concentration of 0.1mol / L, and keep the pH value of the sol at 3-4;

[0026] 2) Add 10% acrylic resin prepolymer as monomer;

[0027] 3) Add 5% amino resin as a crosslinking agent to form the skeleton of the inorganic-organic composite film;

[0028] 4) Add 0.1% organic fluorine resin to reduce the surface tension of the sol and improve the self-leveling performance;

[0029] 5) Compress and atomize the above-mentioned nano-sol with a 6 kg high-pressure spray gun, and spray the atomized nano-sol on the surface of the nylon substrate with a three-dimensional structure by means of a high-speed airflow;

[0030] 6) After 15 minutes of aging, a uniform and transparent film is formed on the surface of the nylon substrate;

[0031] 7) Bake in an oven at 130 degrees for 30 minutes to make the film gel and solidify;

[0032] 8) Cool naturally to form a trans...

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PUM

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Abstract

The invention discloses a method for manufacturing an ultra-thin nano sol film, which is applied to the surface of an organic polymer material, can stably store micro-nano sol for a long period of time, and can be cured at low temperature. The invention discloses a correlation technique for stably storing the sol for a long period of time, curing the sol film at low temperature and obtaining the ultra-thin nano coating. The nano sol and the ultra-thin nano film disclosed by the invention can improve the surface property of the organic polymer material, so that the nano sol and the ultra-thin nano film have excellent properties such as high hardness, rub resistance, scratching resistance, chemical resistance and weather fastness, dirt resistance and water repellency and the like.

Description

technical field [0001] The invention discloses a special sol and its film-forming method, which are mainly applied to the surface modification of organic polymer materials with three-dimensional structure. Various materials have their own advantages and also have their own defects. By covering the surface with a film with special properties , can improve the various properties of the material surface and make up for the defects of the material surface; organic polymer materials have low surface hardness, low friction resistance, scratch resistance, or poor weather resistance and chemical resistance. To meet the needs of various products, modify the surface of organic polymer materials to make up for various surface performance defects of organic polymer materials, which has an urgent market demand and broad market application prospects. Background technique [0002] Sol-gel method: Sol refers to organic or inorganic nano- or micron-sized particles formed by hydrolysis and po...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D7/12B05D7/24
Inventor 郭子钰朱玉涵其他发明人请求不公开姓名
Owner 上海迪道科技有限公司
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