Solvent-free bicomponent road marking paint

A road marking, two-component technology, applied in the field of coatings, can solve the problems of poor adhesion, spraying polyurea elastomer road marking paint, etc., to achieve outstanding weather resistance, overcome unsatisfactory aging resistance, good weather resistance

Inactive Publication Date: 2014-08-06
SHANGHAI XIANGLAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction requires special mixing equipment and professional construction personnel, so the wide application of spraying polyurea elastomer road marking paint is greatly restricted
2) Poor adhesion
For this reason, during the construction of spraying polyurea road marking paint, construction personnel must wear gas masks, protective glasses, rubber gloves, protective clothing and protective shoes, etc., and wrap them tightly.

Method used

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  • Solvent-free bicomponent road marking paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Add 30kg of polyaspartate polyurea resin, 0.8kg of organic bentonite, 1.5kg of polyamide wax, 0.2kg of polycarboxylate ammonium salt, 0.3kg of silicone defoamer, and 0.2kg of silicone wetting agent into the reactor in sequence , use a disperser to stir at a low speed, and the speed of the disperser is 200 rpm, until the mixture is uniform.

[0043] Add 20kg of rutile titanium dioxide, 10kg of 800-mesh heavy calcium, and 22kg of 400-mesh spherical quartz into the above reaction kettle in sequence, adjust the speed of the disperser to 1000 rpm, and stir until the mixture is uniform; then adjust the stirring speed of the disperser to To medium speed, the rotating speed is 500 rpm, slowly add hollow glass microspheres S38HS 5kg, stir for 20 minutes, and obtain the main paint;

[0044] Stir the above-mentioned main paint at a low speed, and the speed of the disperser is 200 rpm, until all the large bubbles and micro-bubbles in it disappear, and the volume of the main paint d...

Embodiment 2

[0050] Add 33kg of polyaspartate polyurea resin, 0.5kg of organic bentonite, 1kg of polyamide wax, 0.2kg of polycarboxylate ammonium salt, 0.2kg of silicone defoamer, and 0.1kg of silicone wetting agent into the reaction kettle in sequence , use a disperser to stir at a low speed, and the speed of the disperser is 250 rpm, until the mixture is uniform.

[0051] Add 15kg of rutile titanium dioxide, 15kg of 800-mesh heavy calcium, and 20kg of 400-mesh spherical quartz into the above reaction kettle in sequence, adjust the speed of the disperser to a high speed, and the speed of the disperser is 900 rpm, and stir until it is evenly mixed; then The stirring speed of the disperser is adjusted to medium speed, the rotating speed of the disperser is 400 rpm, slowly add 5 kg of hollow glass microspheres S38HS, and stir for 30 minutes to obtain the main paint;

[0052] Pump the above-mentioned reaction kettle to negative 0.5 atmospheric pressure, and use a disperser to stir the main pa...

Embodiment 3

[0058] Add 30kg of polyaspartate polyurea resin, 0.5kg of organic bentonite, 1kg of polyamide wax, 0.2kg of polycarboxylate ammonium salt, 0.2kg of silicone defoamer, and 0.1kg of silicone wetting agent into the reaction kettle in sequence , use a disperser to stir at a low speed, the speed of the disperser is 300 rpm, until the mixture is uniform.

[0059] Add 15kg of rutile titanium dioxide, 10kg of 800-mesh heavy calcium, and 25kg of 400-mesh spherical quartz into the above reaction kettle in sequence, adjust the speed of the disperser to a high speed, and the speed of the disperser is 1100 rpm, and stir until it is evenly mixed; then The stirring speed of the disperser is adjusted to medium speed, the rotating speed of the disperser is 600 rpm, slowly add 8 kg of hollow glass microspheres S38HS, and stir for 20 minutes to obtain the main paint;

[0060] Stir the above-mentioned main paint at a low speed, and the speed of the disperser is 200 rpm, until all the large bubble...

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Abstract

The invention discloses a solvent-free bicomponent road marking paint, which comprises 90wt% of main paint and 10wt% of a curing agent. According to a weight ratio, the formula of the main paint involves: 30-35% of polyaspartic ester polyurea resin, 1.5-2.8% of an anti-settling agent, 0.2-0.4% of a dispersant, 0.2-0.3% of a defoaming agent, 0.1-0.2% of a wetting agent, 15-20% of a pigment, 10-15% of filler, 20-25% of 400-mesh spherical quartz sand, and 5-8% of hollow glass microsphere S38HS. The curing agent is an HDI trimer. The invention also discloses a preparation method and a construction method for the solvent-free bicomponent road marking paint. The solvent-free bicomponent road marking paint adopting the technical scheme involved in the invention is free of organic volatile solvent, and has the advantages of environmental protection, safety, high wear resistance, good reflection, strong adhesion, simple construction process, and good weatherability.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a polyaspartate polyurea solvent-free two-component road marking paint road marking paint. Background technique [0002] Road marking paint, also known as road marking paint, is painted on the road surface to regulate road traffic. Road marking paint containing reflective materials can also guide drivers to drive at night. At present, road marking paint mainly includes water-based acrylic road marking paint, two-component solvent-free acrylic road marking paint, solvent-based acrylic road marking paint and hot-melt petroleum resin road marking paint. [0003] Water-based road marking paints have emerged as an alternative to solvent-based road marking paints, which have lower emissions of organic solvents. Its special advantage is that it uses water as a solvent, so it can realize "clean production", has no pollution to the environment, and meets the requirements of environmenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D7/12
Inventor 奚祥
Owner SHANGHAI XIANGLAN CHEM
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