CN104231895A - Preparation method for environment-friendly weatherable road-marking paint - Google Patents

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

A kind of preparation method of environment-friendlyweather-proof weather-proof road mark paint

Technical field

The present invention relates to traffic facilities technical field, particularly relate to a kind of preparation method of road mark paint.

Background technology

Conventional road mark paint is primarily of normal temperature solvent-borne type and hot-melting type two kinds of coating.The product that normal temperature solvent based coating is is main raw material with vinylformic acid or chlorinated rubber, generally be applied in national highway, provincial highway and urban road, the advantage of this gage mark coating is that cost is low, operating efficiency is high, again does not need to remove old line during construction, can directly cover.But it is being produced and is having a large amount of organic solvent volatilizations in use, and contaminate environment, affects the healthy of people.Due to the existence of organic solvent, fire accident.In addition, the intensity of solvent based coating is low, and not wear-resisting, work-ing life is short, and the avidity of coating and glass microballon is poor, and the reflective glass beads that face is spread very easily comes off, and night, reverse reflecting effect was not lasting.

The product that heat reflow paint is is raw material with petroleum resin or Gum Rosin etc., is widely used in high-grade highway and urban road, this gage mark coating has quick-drying, wear-resisting, Night visibility good, the advantage of long service life.But also there is following shortcoming: one, need to add heat construction, construct loaded down with trivial details, equipment is complicated, and executive cost is larger.Its two, because its material itself has combustibility, and need to be heated to 180 DEG C of right and lefts and can use, therefore in construction process, there is certain potential safety hazard; Its three, hot melt type gage mark freeze-thaw resistance is poor, and below-15 DEG C, film fragility is large, and shock resistance is poor.Time more than 60 DEG C, coating deliquescing, rate of expansion is comparatively large, and ultimate compression strength is low.Its thermal expansivity is more than five times of cement pavement, is easy to come off, and is not suitable for the line of cement pavement.Its four, rainy night, reflective visual range was short.Its five, coating thickness is at about 1.5 ~ 2mm, and the water vent of road pavement has a certain impact.Its six, the glass microballon that face is spread easily comes off, and the graticule surface after glass microballon comes off will become smooth, especially in the rainy day, doughnut through or easily cause sideslip when overtaking other vehicles.Its seven, difficulty of construction is large again, first need remove old line and just can construct, so not only increase cost, and operating efficiency also reduced many.

Along with the raising of people's quality of life, the cry of the claimed good living space of people is also more and more higher, and environmental regulation is also more and more stricter, and development environment protection no-pollution " green coating " has become the inexorable trend of world coatings industry.And water-based road guide line paint is nontoxic, harmless, pollution-free, have good sticking power, the reflective function of night, rainy night is good, and can be lasting, and wear-proof sliding-proof, construction is simple.But waterborne road marking paints construction time harsher to environmental requirement: construction environment temperature requirement higher than 5 DEG C, preferably more than 20 DEG C; Humidity requirement below 80%, preferably below 50%; Rainy day can not construct; Drying will be cleaned in construction road surface, can not rain after construction in 2h; Road surface requires that draining is good, and not so graticule can bubble through rainwater immersion film, come off, and operating efficiency is not high.

Summary of the invention

The object of the invention is to the preparation method proposing a kind of environment-friendlyweather-proof weather-proof road mark paint, coating prepared by the method overcomes prior art above shortcomings, there is strong adhesion, fast drying, high, the impact-resistant excellent properties of hardness, nonpoisonous and tasteless, environmental protection simultaneously, and good weatherability.

For reaching this object, the present invention by the following technical solutions:

A kind of preparation method of environment-friendlyweather-proof weather-proof road mark paint, described coating is made up of following component by weight percentage: aqueous polyurethane copolymer resins 32-38%, acrylic dispersants 2-4%, silicone based defoamer 2-3%, methylcellulose thickener 1-2%, titanium dioxide 12-14%, 240-320 object Calucium Silicate powder 10-14%, 300-400 order light calcium carbonate 7-9%, 300-400 order mica powder 8-12%, the mixture initiator 1-3% of modified cyclohexanone peroxide and dibutylester, high-purity silicon dioxide powder anti-wear agent 2-4%, reflective glass beads 6-8%, four [β-(3, 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor 0.2-0.3%, benzophenone class anti UV agent 0.1-0.3%, CIBA622 photostabilizer 0.3-0.5%, the water of modified polyamide wax powder thixotropic agent 0.2-0.4% and surplus, described preparation method comprises the following steps:

1) in a kettle. by water, thickening material mixing, be warmed to 50-60 DEG C, make it be dispersed into thickening slurry;

2) in step 1) drop into dispersion agent, Calucium Silicate powder, light calcium carbonate, mica powder, titanium dioxide, reflective glass beads, wetting agent, anti-wear agent successively in the slurry that configures, make reactor rotating speed be 800-1000 rev/min,

Dispersion 10-15 minute, makes it even;

3) in step 2) in the slurry prepared, under the temperature condition of 55-65 DEG C, under the rotating speed of 400-500 rev/min, add aqueous polyurethane copolymer resins, oxidation inhibitor, anti UV agent, photostabilizer, thixotropic agent successively, stir 30-40 minute, make it even;

4) in step 3) drop into defoamer in the slurry prepared, then drop into initiator and mix rear packaging.

Beneficial effect of the present invention is:

1) strong, high, the impact-resistant excellent properties of fast drying, hardness of the paint adhesion prepared of the inventive method, nonpoisonous and tasteless, environmental protection simultaneously;

2) the wear-resisting antiskid when coating that prepared by the inventive method makes to use by the synergy between component, good springiness; The additives such as the oxidation inhibitor particularly added, anti UV agent, photostabilizer act synergistically mutually, not only can resist the erosion of the natural weathers such as sleet hardships, hail, and the physics and chemistry can also resisting rubble, greasy dirt etc. destroys.

3) coating prepared of the inventive method is higher than conventional hot melt coating by more than 60% with road surface bonding force, can reach ten million wheel load theoretical service life, improves more than 80% than prior art.

4) coating application prepared of the inventive method is easy, and easy maintenance, reflective persistence is better.

Embodiment

Technical scheme of the present invention is further illustrated below in conjunction with embodiment.

Embodiment one

A kind of preparation method of environment-friendlyweather-proof weather-proof road mark paint, described coating is made up of following component by weight percentage: aqueous polyurethane copolymer resins 32%, acrylic dispersants 4%, silicone based defoamer 2%, methylcellulose thickener 2%, titanium dioxide 12%, 240-320 object Calucium Silicate powder 14%, 300-400 order light calcium carbonate 7%, 300-400 order mica powder 12%, the mixture initiator 1% of modified cyclohexanone peroxide and dibutylester, high-purity silicon dioxide powder anti-wear agent 4%, reflective glass beads 6%, four [β-(3, 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor 0.3%, benzophenone class anti UV agent 0.1%, CIBA622 photostabilizer 0.5%, the water of modified polyamide wax powder thixotropic agent 0.2% and surplus, described preparation method comprises the following steps:

1) in a kettle. by water, thickening material mixing, be warmed to 50 DEG C, make it be dispersed into thickening slurry;

2) in step 1) drop into dispersion agent, Calucium Silicate powder, light calcium carbonate, mica powder, titanium dioxide, reflective glass beads, wetting agent, anti-wear agent successively in the slurry that configures, make reactor rotating speed be 1000 revs/min, disperse 10 minutes, make it even;

3) in step 2) in the slurry prepared, under the temperature condition of 55 DEG C, under the rotating speed of 500 revs/min, add aqueous polyurethane copolymer resins, oxidation inhibitor, anti UV agent, photostabilizer, thixotropic agent successively, stir 30 minutes, make it even;

4) in step 3) drop into defoamer in the slurry prepared, then drop into initiator and mix rear packaging.

Embodiment two

A kind of preparation method of environment-friendlyweather-proof weather-proof road mark paint, described coating is made up of following component by weight percentage: aqueous polyurethane copolymer resins 38%, acrylic dispersants 2%, silicone based defoamer 3%, methylcellulose thickener 1%, titanium dioxide 14%, 240-320 object Calucium Silicate powder 10%, 300-400 order light calcium carbonate 9%, 300-400 order mica powder 8%, the mixture initiator 3% of modified cyclohexanone peroxide and dibutylester, high-purity silicon dioxide powder anti-wear agent 2%, reflective glass beads 8%, four [β-(3, 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor 0.2%, benzophenone class anti UV agent 0.3%, CIBA622 photostabilizer 0.3%, the water of modified polyamide wax powder thixotropic agent 0.4% and surplus, described preparation method comprises the following steps:

1) in a kettle. by water, thickening material mixing, be warmed to 60 DEG C, make it be dispersed into thickening slurry;

2) in step 1) drop into dispersion agent, Calucium Silicate powder, light calcium carbonate, mica powder, titanium dioxide, reflective glass beads, wetting agent, anti-wear agent successively in the slurry that configures, make reactor rotating speed be 800 revs/min, disperse 15 minutes, make it even;

3) in step 2) in the slurry prepared, under the temperature condition of 55-65 DEG C, under the rotating speed of 500 revs/min, add aqueous polyurethane copolymer resins, oxidation inhibitor, anti UV agent, photostabilizer, thixotropic agent successively, stir 30 minutes, make it even;

4) in step 3) drop into defoamer in the slurry prepared, then drop into initiator and mix rear packaging.

Embodiment three

A kind of preparation method of environment-friendlyweather-proof weather-proof road mark paint, described coating is made up of following component by weight percentage: aqueous polyurethane copolymer resins 35%, acrylic dispersants 3%, silicone based defoamer 2.5%, methylcellulose thickener 1.5%, titanium dioxide 13%, 240-320 object Calucium Silicate powder 12%, 300-400 order light calcium carbonate 8%, 300-400 order mica powder 10%, the mixture initiator 2% of modified cyclohexanone peroxide and dibutylester, high-purity silicon dioxide powder anti-wear agent 3%, reflective glass beads 7%, four [β-(3, 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor 0.25%, benzophenone class anti UV agent 0.2%, CIBA622 photostabilizer 0.4%, the water of modified polyamide wax powder thixotropic agent 0.3% and surplus, described preparation method comprises the following steps:

1) in a kettle. by water, thickening material mixing, be warmed to 55 DEG C, make it be dispersed into thickening slurry;

2) in step 1) drop into dispersion agent, Calucium Silicate powder, light calcium carbonate, mica powder, titanium dioxide, reflective glass beads, wetting agent, anti-wear agent successively in the slurry that configures, make reactor rotating speed be 900 revs/min, disperse 13 minutes, make it even;

3) in step 2) in the slurry prepared, under the temperature condition of 60 DEG C, under the rotating speed of 550 revs/min, add aqueous polyurethane copolymer resins, oxidation inhibitor, anti UV agent, photostabilizer, thixotropic agent successively, stir 35 minutes, make it even;

4) in step 3) drop into defoamer in the slurry prepared, then drop into initiator and mix rear packaging.

Claims (1)

1. the preparation method of an environment-friendlyweather-proof weather-proof road mark paint, it is characterized in that, described coating is made up of following component by weight percentage: aqueous polyurethane copolymer resins 32-38%, acrylic dispersants 2-4%, silicone based defoamer 2-3%, methylcellulose thickener 1-2%, titanium dioxide 12-14%, 240-320 object Calucium Silicate powder 10-14%, 300-400 order light calcium carbonate 7-9%, 300-400 order mica powder 8-12%, the mixture initiator 1-3% of modified cyclohexanone peroxide and dibutylester, high-purity silicon dioxide powder anti-wear agent 2-4%, reflective glass beads 6-8%, four [β-(3, 5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester oxidation inhibitor 0.2-0.3%, benzophenone class anti UV agent 0.1-0.3%, CIBA622 photostabilizer 0.3-0.5%, the water of modified polyamide wax powder thixotropic agent 0.2-0.4% and surplus, described preparation method comprises the following steps:

1) in a kettle. by water, thickening material mixing, be warmed to 50-60 DEG C, make it be dispersed into thickening slurry;

2) in step 1) drop into dispersion agent, Calucium Silicate powder, light calcium carbonate, mica powder, titanium dioxide, reflective glass beads, wetting agent, anti-wear agent successively in the slurry that configures, reactor rotating speed is made to be 800-1000 rev/min, dispersion 10-15 minute, makes it even;

3) in step 2) in the slurry prepared, under the temperature condition of 55-65 DEG C, under the rotating speed of 400-500 rev/min, add aqueous polyurethane copolymer resins, oxidation inhibitor, anti UV agent, photostabilizer, thixotropic agent successively, stir 30-40 minute, make it even;

4) in step 3) drop into defoamer in the slurry prepared, then drop into initiator and mix rear packaging.