Stain-resistant high-temperature liquid asphalt coating and preparation method thereof

A technology of liquid asphalt and high temperature resistance, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of poor anti-fouling effect and no anti-fouling effect of polyphenylene sulfide at high temperature , to achieve the effect of improving anti-fouling performance and good anti-oxidation performance

Active Publication Date: 2018-02-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Polyphenylene sulfide has stable high-temperature performance and excellent bonding force with metal substrates. However, polyphenylene sulfide has poor anti-fouling effect at high temperature, and has almost no anti-fouling effect in asphalt liquid at 250 °C.

Method used

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  • Stain-resistant high-temperature liquid asphalt coating and preparation method thereof
  • Stain-resistant high-temperature liquid asphalt coating and preparation method thereof
  • Stain-resistant high-temperature liquid asphalt coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Preparation of anti-high temperature liquid asphalt stain coating:

[0036] Step 1: Prepare 100 g of water, 50 g of ethanol, 30 g of polyphenylene sulfide, 18 g of titanium dioxide (50 μm in particle size), and 0.36 g of sodium lauryl sulfate to prepare high-temperature liquid asphalt stain-resistant slurry; 9000 rpm high-speed shear Disperse for 2h;

[0037] Step 2: Mix the anti-high temperature liquid asphalt stain slurry with the hydrophobic modifier, and stir evenly at a stirring speed of 5000 rpm for 30 minutes to form an anti-high temperature liquid asphalt stain coating. In the hydrophobic modifier, 1 g of aluminum oxide nanopowder with a particle size of 500 nm, 1 g of ethoxylated alkylphenol ammonium sulfate, and 20 g of polyperfluoroethylene propylene emulsion with a solid content of 40% of the emulsion.

[0038] 2. Preparation of anti-high temperature liquid asphalt stain coating:

[0039] Clean and degrease the surface of the stainless steel substrate; ...

Embodiment 2

[0045] A kind of preparation of anti-high temperature liquid asphalt stain coating, concrete steps are as follows:

[0046] 1. Preparation of anti-fouling coating:

[0047] Step 1: Prepare 100g of water, 100g of propanol, 60g of polyphenylene sulfide, 6g of aluminum oxide (particle size 500nm), and 1.2g of sodium dodecylsulfonate to make anti-high temperature liquid asphalt contamination slurry; 6000 rpm / min high speed shear dispersion 4h;

[0048] Step 2: 20g of titanium dioxide with a particle size of 50nm, 50g of polyoxyethylene octylphenol ether-10 and 200g of polytetrafluoroethylene emulsion with a solid content of 20% are configured as a hydrophobic modifier; 100g of anti-high temperature liquid asphalt is stained Stir the slurry and 100g of hydrophobic modifier evenly to form an anti-high temperature liquid asphalt stain coating, the stirring speed is 5000 rpm, and the stirring time is 20min.

[0049] 2. Preparation of anti-high temperature liquid asphalt stain coat...

Embodiment 3

[0053] A kind of preparation of anti-high temperature liquid asphalt stain coating, concrete steps are as follows:

[0054] 1. Preparation of anti-fouling coating:

[0055] Step 1: Prepare 100 g of water, 20 g of ethylene glycol, 12 g of polyphenylene sulfide, 7.2 g of silicon dioxide (500 μm in particle size), and 0.24 g of sodium dodecylbenzene sulfonate to prepare a slurry for preventing high-temperature liquid asphalt contamination; 8000 rpm high-speed shear dispersion for 3 hours;

[0056] Step 2: Prepare 5g of silicon dioxide with a particle size of 500nm, 5g of polyoxyethylene octylphenol ether-10, and 100g of fluorine-containing acrylic emulsion with a solid content of 30% to form a hydrophobic modifier; dip 100g of high-temperature resistant liquid asphalt Stir the dirty slurry and 50g of hydrophobic modifier evenly to form an anti-high temperature liquid asphalt stain coating, the stirring speed is 3000 rpm, and the stirring time is 20min.

[0057] 2. Preparation o...

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Abstract

The invention discloses a stain-resistant high-temperature liquid asphalt coating and a preparation method thereof, belonging to the technical field of stain-resistant coatings. The preparation methodcomprises the following steps: firstly, mixing a solvent, polyphenylene sulfide, a structural blending agent and an additive in proportion to prepare slurry; mixing the slurry with a hydrophobic modifier to prepare a coating; and coating the surface of a pre-treated substrate with the coating, and heating and preserving the temperature for a period of time and cooling to room temperature to obtain the stain-resistant high-temperature liquid asphalt coating. The stain-resistant high-temperature liquid asphalt coating provided by the invention meets the using demand in a high-temperature liquidasphalt environment; the coating and the substrate material form a good interlaminar bonding force, a hydrophobic surface is formed on the surface of the coating, the stain-resistant performance of the compound coating is improved, and the stain area of the high-temperature liquid asphalt is smaller than 10%.

Description

technical field [0001] The invention belongs to the technical field of anti-fouling coatings, and more particularly refers to a self-layering high-temperature resistant high-temperature liquid asphalt anti-fouling coating. The coating can be used on the surface of different base materials, and can be applied to coal-based oil, etc. The surface of the field material is protected from contamination by high-temperature liquid asphalt (200°C to 300°C). Background technique [0002] my country's overall energy characteristics are "rich in coal, less oil, and gas". my country has relatively rich coal resources, but China's oil exploitation is far from meeting the rapidly growing demand for oil, resulting in excessive dependence on imported crude oil and petroleum products. The shortage of petroleum resources puts the replacement of coal with oil on the agenda again, and the use of coal to oil has become an important trend of my country's energy strategy. Coal-to-oil technology i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D181/02C09D5/16C09D7/63C09D7/61C09D7/65C09D7/20
CPCC08K2003/2227C08K2003/2241C08K2201/011C08K2201/014C08L2201/08C09D5/1662C09D5/1687C09D181/02C08L27/20C08K13/02C08K3/22C08K5/41C08L27/18C08L71/02C08K5/42C08L33/16C08K5/053C08K3/36
Inventor 刘慧丛李卫平陈海宁邵燕静朱立群
Owner BEIHANG UNIV
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