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Polymeric composite in-situ growth nano-particle molecular film and preparation method thereof

A nanoparticle, in-situ growth technology, applied in lubricating compositions, chemical instruments and methods, layered products, etc., can solve the problems of affecting the performance of molecular films, prone to agglomeration, etc., and achieve good wear resistance and uniform distribution. Effect

Inactive Publication Date: 2009-09-23
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Description
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  • Application Information

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Problems solved by technology

In this method, it is necessary to prepare titanium dioxide nanoparticles and coat them with polyacrylic acid, and then use molecular deposition technology to form a thin film. In actual operation, the operating conditions must be strictly controlled. If the operating conditions are not properly controlled, titanium dioxide nanoparticles are prone to agglomeration. and affect the properties of the formed molecular film

Method used

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  • Polymeric composite in-situ growth nano-particle molecular film and preparation method thereof
  • Polymeric composite in-situ growth nano-particle molecular film and preparation method thereof
  • Polymeric composite in-situ growth nano-particle molecular film and preparation method thereof

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Embodiment 1

[0038] Embodiment 1, the preparation method of polymer composite in-situ growth nanoparticle molecular film

[0039] The preparation method of the polymer composite in-situ growth nanoparticle molecular film in this embodiment is specifically carried out according to the following operations:

[0040] (1) Preparation of the substrate:

[0041] Step a1: Take a glass substrate (or quartz substrate or silicon substrate) and clean it; the cleaning step can be carried out according to conventional operations in this field, for example, first use petroleum ether to scrub and clean to remove the wax layer, and then use toluene, acetone Ultrasonic cleaning with polar solvents such as chloroform and / or chloroform to remove other organic layers, and then ultrasonic cleaning with ethanol and water to remove particles and other pollutants on the surface of the substrate;

[0042] Step a: immerse the above-mentioned cleaned substrate in 80°C containing H 2 SO 4 with H 2 o 2 solution f...

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Abstract

The invention relates to a polymeric composite in-situ growth nano-particle molecular film and a preparation method thereof. The film is provided with at least one composite film of a double-layer poly-dimethyldiallylammonium chloride film and a polyacrylic acid film containing copper sulfide nano-particles; and the film adopts molecular deposition technology to generate the copper sulfide nano-particles on a substrate by utilizing in-situ growth, thereby preparing the composite film containing the copper sulfide nano-particles. The nano-particles have even distribution in the film and no obvious agglomeration; and the composite film has the advantages of good wear resistance, low friction, and antiwear performance.

Description

technical field [0001] The invention relates to a polymer composite in-situ growth nano particle molecular film and a preparation method thereof, belonging to the technical field of material engineering. Background technique [0002] Friction and wear are an important problem to be solved in the lubrication of micro-electromechanical systems and magnetic storage systems, and are important factors affecting the stable operation of the system. It is important to develop a practical thin film (thickness of the thin film is usually nanoscale, also called ultra-thin film) important way to solve this problem. At present, the industry's solutions to this problem are mainly focused on molecular self-assembled films, LB (Langmuir--Blodgett) films, and the composite research of these two films, but the wear resistance of these two films is relatively poor. Since the 1990s, a variety of composite films have been prepared by molecular deposition, and they have also been used in tribolo...

Claims

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Application Information

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IPC IPC(8): C08J5/18B32B27/08B32B27/18B32B27/04B32B7/00C08L39/00C08L33/02C08K3/06B29C70/40C10M171/00
Inventor 郭岩宝王德国
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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