Preparation method for environment-friendly weatherable road-marking paint

A road marking and coating technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as harsh environmental requirements, high construction costs, and shedding, and achieve good durability of reflection, easy maintenance and repair, and adhesion strong effect

Inactive Publication Date: 2014-12-24
JIANGSU WUXI TRAFFIC FACILITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also the following disadvantages: First, heating construction is required, the construction is cumbersome, the equipment is complicated, and the construction cost is relatively large
However, the environmental requirements for the construction of water-based road marking paint are relatively strict: the construction environment temperature must be higher than 5°C, preferably above 20°C; the humidity requirement should be below 80%, preferably below 50%; construction cannot be carried out in rainy days; the construction road surface should be clean Dry, no rain within 2 hours after construction; the road surface requires good drainage, otherwise the coating film will bubble and fall off after the marking line is soaked in rainwater, and the construction efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of an environment-friendly weather-resistant road marking paint, the paint is composed of the following components in terms of weight percentage: 32% of waterborne polyurethane copolymer resin, 4% of acrylic dispersant, 2% of organosilicon defoamer, methyl Cellulose thickener 2%, titanium dioxide 12%, 240-320 mesh calcium silicate 14%, 300-400 mesh light calcium carbonate 7%, 300-400 mesh mica powder 12%, modified peroxide ring Mixture of hexanone and dibutyl ester initiator 1%, high-purity silica powder anti-wear agent 4%, reflective glass beads 6%, tetrakis[β-(3,5-di-tert-butyl 4-hydroxyphenyl ) propionic acid] pentaerythritol ester antioxidant 0.3%, benzophenone anti-ultraviolet agent 0.1%, CIBA622 light stabilizer 0.5%, modified polyamide wax powder thixotropic agent 0.2% and the water of surplus; Described preparation method comprises The following steps:

[0021] 1) Mix water and thickener in a reaction kettle, heat to 50°C, and disperse it i...

Embodiment 2

[0026] A preparation method of an environment-friendly weather-resistant road marking paint, the paint is composed of the following components in terms of weight percentage: 38% of water-based polyurethane copolymer resin, 2% of acrylic dispersant, 3% of silicone defoamer, methyl Cellulose thickener 1%, titanium dioxide 14%, 240-320 mesh calcium silicate 10%, 300-400 mesh light calcium carbonate 9%, 300-400 mesh mica powder 8%, modified peroxide ring Mixture of hexanone and dibutyl ester initiator 3%, high-purity silica powder anti-wear agent 2%, reflective glass beads 8%, tetrakis[β-(3,5-di-tert-butyl 4-hydroxyphenyl ) propionic acid] pentaerythritol ester antioxidant 0.2%, benzophenone anti-ultraviolet agent 0.3%, CIBA622 light stabilizer 0.3%, modified polyamide wax powder thixotropic agent 0.4% and the water of surplus; The preparation method comprises The following steps:

[0027] 1) Mix water and thickener in a reaction kettle, heat to 60°C, and disperse it into a thick...

Embodiment 3

[0032] A preparation method of an environment-friendly and weather-resistant road marking paint, the paint is composed of the following components in terms of weight percentage: 35% of water-based polyurethane copolymer resin, 3% of acrylic dispersant, 2.5% of silicone defoamer, methyl Cellulose thickener 1.5%, titanium dioxide 13%, 240-320 mesh calcium silicate 12%, 300-400 mesh light calcium carbonate 8%, 300-400 mesh mica powder 10%, modified ring peroxide Mixture of hexanone and dibutyl ester initiator 2%, high-purity silica powder anti-wear agent 3%, reflective glass beads 7%, tetrakis[β-(3,5-di-tert-butyl 4-hydroxyphenyl ) propionic acid] pentaerythritol ester antioxidant 0.25%, benzophenone anti-ultraviolet agent 0.2%, CIBA622 light stabilizer 0.4%, modified polyamide wax powder thixotropic agent 0.3% and the water of surplus; The preparation method comprises The following steps:

[0033] 1) Mix water and thickener in a reaction kettle, heat to 55°C, and disperse it in...

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Abstract

The invention discloses a preparation method for environment-friendly weatherable road-marking paint. The preparation method comprises the following steps: 1) adding water and a thickening agent into a reaction kettle and mixing, and heating to 50-60 DEG C to disperse the mixture to form a thick paste; 2) successively adding a dispersant, calcium silicate, light calcium carbonate, titanium dioxide, reflective glass micro beads, a wetting agent and an antiwear agent into the slurry prepared in the step 1), enabling the rotation speed of the reaction kettle to be 800-1000 r/min, and dispersing for 10-15 min, so as to homogenize the mixture; 3) in the slurry prepared in the step 20, under the temperature condition of 55-65 DEG C, at a rotation speed of 400-500 r/min, successively adding aqueous polyurethane copolymerization resin, an antioxidant, an ultraviolet-resisting agent, a light stabilizing agent and a thixotropic agent, and stirring for 30-40 min, so as to homogenize the mixture; and 4) pouring an antifoaming agent into the slurry prepared in the step 3), then adding an initiator, mixing uniformly and packaging.

Description

technical field [0001] The invention relates to the technical field of traffic facilities, in particular to a preparation method of road marking paint. Background technique [0002] Commonly used road marking paints are mainly two kinds of paints: normal temperature solvent type and hot melt type. Normal temperature solvent-based paint is a product made of acrylic acid or chlorinated rubber as the main raw material. It is generally used on national roads, provincial roads and urban roads. The advantages of this type of marking paint are low cost and high construction efficiency. Old lines can be covered directly. However, a large amount of organic solvents volatilize during its production and use, which pollutes the environment and affects people's health. Due to the presence of organic solvents, fire accidents are extremely prone to occur. In addition, solvent-based coatings have low strength, are not wear-resistant, have a short service life, and have poor affinity betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12
Inventor 席珉瑜
Owner JIANGSU WUXI TRAFFIC FACILITIES
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