Engine protective coating liquid and preparation method thereof

A technology of protective coating and engine, applied in the direction of coating, etc., can solve problems such as poor engine repair effect

Active Publication Date: 2022-03-01
BEIJING HANNUOWEI AUTOMATIC CONTROL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing engine protection coat...

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  • Engine protective coating liquid and preparation method thereof
  • Engine protective coating liquid and preparation method thereof
  • Engine protective coating liquid and preparation method thereof

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preparation example Construction

[0047] The present invention further proposes a method for preparing the above-mentioned engine protective coating liquid, figure 1 It is a schematic flow chart of an embodiment of the preparation method of the engine protective coating solution proposed by the present invention. see figure 1 , the preparation method of the engine protective coating liquid comprises the following steps:

[0048] S10. Uniformly mixing fullerene, nano-spherical chromium trioxide and surfactant at a stirring speed of 2000-2500 rpm, and refluxing at 100-120°C for 3-5 hours to obtain a mixture;

[0049] S20, adding base oil to the mixture, and stirring at a rotation speed of 400-500 rpm for 30-50 minutes to obtain an intermediate liquid;

[0050] S30. Add a high-temperature antioxidant and a viscosity index improver to the intermediate liquid, heat and stir for 50-90 minutes, and then cool to obtain an engine protective coating liquid.

[0051] In the above steps, under high-speed stirring, full...

Embodiment 1

[0065] (1) Under heating conditions, spherical chromium trioxide and surface modifier (hexadecyltrimethylammonium bromide, the mass ratio of surface modifier to nano-spherical chromium trioxide is 1:20) mixed ball mill Afterwards, ultrasonic treatment to obtain nano-spherical chromium trioxide;

[0066] (2) Mix fullerene with a particle size of 3 μm and nano-spherical chromium trioxide with a particle size of 40 nm and a sphericity of 0.8 with surfactant Tween-80, stir at a speed of 2000 rpm, and reflux at 100 ° C 3h, the mixture was obtained;

[0067] (3) Add base oil (alpha olefin) to the mixture, and stir for 30 minutes at a rotating speed of 400 rpm to obtain an intermediate liquid;

[0068] (4) Add a high-temperature antioxidant (2,6 di-tert-butyl-p-cresol) and a viscosity index improver (polymethacrylate) to the intermediate liquid, heat and stir for 50 minutes, then cool to obtain an engine protection coating layer of liquid.

Embodiment 2

[0070] (1) Under heating conditions, spherical chromium trioxide and surface modifier (sodium dodecylbenzenesulfonate, the mass ratio of surface modifier to nano-spherical chromium trioxide is 1:50) are mixed and ball-milled, Ultrasonic treatment to obtain nano-spherical chromium trioxide;

[0071] (2) Mix fullerene with a particle size of 1 μm and nano-spherical chromium trioxide with a particle size of 50 nm and a sphericity of 1 with surfactant Tween-80, stir at a speed of 2500 rpm, and reflux at 120 ° C 5h, the mixture was obtained;

[0072] (3) Add base oil (vegetable oil) to the mixture, and stir for 50 min at a rotating speed of 500 rpm to obtain an intermediate liquid;

[0073] (4) Add a high-temperature antioxidant (mercaptobenzothiazole) and a viscosity index improver (polyisobutylene) into the intermediate liquid, heat and stir for 90 minutes, then cool to obtain an engine protective coating liquid.

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Abstract

The invention discloses engine protective coating liquid and a preparation method thereof, and relates to the technical field of engine protective agents. The engine protective coating liquid comprises the following components: fullerene, nano spherical chromium sesquioxide, a surfactant, a high-temperature antioxidant, base oil and a viscosity index improver. According to the engine protective coating liquid provided by the invention, through the combined action of the nano spherical chromium sesquioxide and the fullerene, the wear of an engine is repaired, the inner wall of the engine is further protected, and the performance of the engine is optimized.

Description

technical field [0001] The invention relates to the technical field of engine protective agents, in particular to an engine protective coating liquid and a preparation method thereof. Background technique [0002] In recent years, my country's automobile industry has developed rapidly, and the number of automobiles has increased significantly year by year. The automobile transportation industry has become an important industry in economic development. The number of private cars, passenger cars and trucks has also increased year after year. , requires engine protective coating fluid for repair. [0003] However, the existing engine protection coating liquid is not effective for repairing the engine. Contents of the invention [0004] The main purpose of the present invention is to provide an engine protective coating liquid and a preparation method thereof, aiming at proposing an engine protective coating liquid with good repairing effect. [0005] In order to achieve the ...

Claims

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Application Information

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IPC IPC(8): C09D191/00C09D7/61C09D7/62
CPCC09D191/00C09D7/61C09D7/62C09D7/70C09D7/67C08K2201/011C08K9/04C08K7/18C08K3/045
Inventor 巩岳
Owner BEIJING HANNUOWEI AUTOMATIC CONTROL TECH
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