CN115491127A - Preparation method of protective agent, protective agent and application of protective agent - Google Patents
Preparation method of protective agent, protective agent and application of protective agent Download PDFInfo
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- CN115491127A CN115491127A CN202211040720.1A CN202211040720A CN115491127A CN 115491127 A CN115491127 A CN 115491127A CN 202211040720 A CN202211040720 A CN 202211040720A CN 115491127 A CN115491127 A CN 115491127A
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- 239000003223 protective agent Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 55
- 239000000839 emulsion Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 17
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- 239000000080 wetting agent Substances 0.000 claims abstract description 14
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 12
- -1 dodecanol ester Chemical class 0.000 claims abstract description 8
- 239000010426 asphalt Substances 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 230000002940 repellent Effects 0.000 claims description 4
- 239000005871 repellent Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000013530 defoamer Substances 0.000 claims 1
- 238000010979 pH adjustment Methods 0.000 claims 1
- 208000017520 skin disease Diseases 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 229920002125 Sokalan® Polymers 0.000 abstract description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 12
- 230000004224 protection Effects 0.000 description 9
- 230000006750 UV protection Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical compound CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B41/4861—Polyalkenes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a preparation method of a protective agent, the protective agent and application thereof, wherein 40 parts of 6127 type emulsion (Shanghai Luhua) are weighed and slowly stirred, and 0.1 part of BB152 wetting agent is added; when the materials are added, a stirrer is used for stirring and dispersing, and the stirring and dispersing rotating speed is 400rpm; then adding 0.1 part of NXZ-A defoaming agent, and stirring and dispersing by using a stirrer at the stirring and dispersing speed of 400rpm; adding 1 part of dodecanol ester serving as a film forming aid and 0.2 part of ACRYSOL RM-12W (Dow) thickening agent, stirring at the stirring speed of 400-600rpm while adding the thickening agent, then adding the balance of deionized water, adjusting the stirring speed to 800rpm, rapidly dispersing for 3-5 minutes to ensure that the liquid becomes uniform and transparent, finally adding 0.1 part of 28% ammonia water to adjust the pH value, and adjusting the pH value to 8-10 to obtain the protective agent.
Description
Technical Field
The invention belongs to the field of color asphalt pavement protection and maintenance, and particularly relates to a preparation method of a protective agent, the protective agent and application thereof.
Background
With the social demand for road color diversity, colored asphalt pavements are increasingly applied in urban roads, landscape roads and other areas. The technology of the colored asphalt pavement disclosed now, after a period of traffic, the aggregate surface cement layer mixed with pigment is worn out, the colored asphalt pavement exposes the color of the crushed stone, thereby the colored pavement loses the initial color.
In the prior art, protective agents are usually sprayed on colored asphalt to protect the colored asphalt, but the colored asphalt pavement is exposed outdoors all the year round and is easy to lose efficacy under the conditions of strong ultraviolet rays and strong acid-base corrosive solutions, and the protective agents fall off from the colored asphalt pavement of the colored asphalt pavement, so that the purpose of protection cannot be achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a protective agent, the protective agent and application thereof, and solve the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of a protective agent comprises the following steps:
step one, adding 6127 type emulsion into a wetting agent, stirring and dispersing to obtain solution one;
step two, adding a defoaming agent into the solution I, stirring and dispersing to obtain a solution II;
step three, adding the decaglycol ester and the thickening agent into the solution II, stirring and dispersing, adding deionized water, stirring and dispersing to obtain a solution III;
and step four, adding ammonia water into the solution III to adjust the pH value, thereby obtaining the protective agent.
The weight ratio of the dodecyl ester, the 6127 type emulsion, the wetting agent, the defoaming agent, the thickening agent, the deionized water and the ammonia water is as follows: 1 to 5:40 to 50:0.1 to 0.3:0.1 to 0.3:0.2 to 0.6:0.01 to 0.1:43.7 to 58.6.
In the first step, the 6127 type emulsion is added into a wetting agent to be stirred and dispersed, and the stirring and dispersing rotating speed is 400rpm-600rpm; in the second step, adding a defoaming agent into the first solution, stirring and dispersing at the stirring and dispersing speed of 400-600 rpm; and in the third step, adding the dodecyl glycol ester and the thickening agent into the second solution, stirring and dispersing at the stirring and dispersing rotating speed of 400-600rpm, then adding deionized water, stirring and dispersing to obtain a third solution, adjusting the stirring speed to 800-900 rpm, and rapidly dispersing for 3-5 min.
In the fourth step, the pH value adjustment range is as follows: 8-10.
The protective agent is white emulsion, has slightly irritant ammonia water odor, and has relative density of 1.23g/cm 3 。
The application of the protective agent to the colored asphalt comprises the following steps:
cleaning a color asphalt pavement to ensure that the pavement has no floating layer, accumulated water and loose particles, keeping the color asphalt pavement dry, controlling traffic during construction and forbidding vehicles and pedestrians to pass through;
step two, uniformly stirring the protective agent, and performing mist spraying on the colored asphalt pavement by using any manual spraying equipment or liquid spraying or spraying vehicle, wherein the spraying amount is controlled to be 0.2kg/m 2 -0.4kg/m 2 ；
And step three, closing the traffic for 10-20 min after the spreading, and opening the traffic, wherein the specific time is based on the surface drying time of the protective agent.
Compared with the prior art, the invention has the following technical effects:
the protectant prepared by the preparation method adopts the combination of the decaglycol ester and the 6127 type emulsion as main film forming substances, so that the protectant forms an excellent wear-resistant protective layer on a colored asphalt pavement after solidification, wherein the protective layer is white emulsion and has slightly irritant ammonia waterOdor, relative density 1.23g/cm 3 Experiments prove that the protective agent has obvious strong ultraviolet resistance and longer protection time.
The protective agent disclosed by the invention is applied, the application process is extremely simple, equipment with an atomizing and spraying function can be used, the construction cost is low, and the effect is good. In practical engineering application, the repair spraying is required to be carried out irregularly according to the wear degree of the practical protective agent, so that the colored asphalt pavement is kept in a protective state for a long time.
Drawings
FIG. 1 is a FT-IR diagram of a protectant made according to the present invention;
FIG. 2 is an SEM electron micrograph of a protectant prepared according to the present invention;
FIG. 3 is an SEM image enlarged representation of the protective agent prepared by the invention.
The present invention will be explained in further detail with reference to examples.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
The starting materials used in the following examples of the invention: emulsion type 6127 (Shanghai route), commercially available; BB152 wetting agent, commercially available; NXZ-A antifoam, commercially available; decaglycol esters, commercially available; ACRYSOLTMRM-12W (Dow) thickener, commercially available; deionized water, commercially available; ammonia, commercially available, water density of 1.0g/cm 3 。
Example 1:
preparation of the protective agent: the raw materials comprise the following components in parts by weight: 40 portions of 6127 type emulsion (Shanghai Luhua); BB152 wetting agent 0.1 part; 0.1 part of NXZ-A defoaming agent; 1 part of glycol tridecanoate; ACRYSOLTMRM-12W (Dow) thickener 0.2 parts; 0.1 part of ammonia water (based on the PH value adjusted to about 8); 58.5 parts of deionized water.
The protective agent is prepared by the following steps:
weighing 40 parts of 6127 type emulsion (Shanghai road chemical), slowly stirring, and adding 0.1 part of BB152 wetting agent; stirring and dispersing by using a stirrer during adding, wherein the stirring and dispersing rotating speed is 400rpm;
then adding 0.1 part of NXZ-A defoaming agent, and stirring and dispersing by using a stirrer at the stirring and dispersing speed of 400rpm;
adding 1 part of dodecanol ester serving as a film forming aid and 0.2 part of ACRYSOL RM-12W (Dow) thickening agent, stirring at the stirring speed of 400-600rpm while adding the thickening agent, then adding the balance of deionized water, adjusting the stirring speed to 800rpm, and rapidly dispersing for 3-5 minutes to ensure that the liquid becomes uniform and transparent.
And finally, adding 0.1 part of 28% ammonia water for pH value adjustment, and adjusting the pH value to 8 to obtain the protective agent.
FT-IR test of the repellent prepared in this example showed that the peak at 3300cm was observed from FIG. 1 -1 Peak reduction of 2960cm -1 Methyl peak appears, 3300-2800cm -1 The C-H telescopic vibration absorption of the region is less than 3000cm -1 Generally, saturated C-H telescopic vibration absorption is adopted; 1750 to 1700cm -1 Region C = O expansion. According to the peak positions of the characteristic peaks, the main characteristic peaks of the dodecaglycol ester appear.
The prepared protective agent material is filled into a shoulder-back sprayer, and spraying operation is carried out immediately after the colored asphalt pavement is finished, wherein the spraying amount is controlled to be 0.1kg/m 2 On the left and right sides, the whole surface of the pavement is basically wetted after being sprayed, and the protective agent material does not flow. And (5) forbidding pedestrians and vehicles to pass within 10min after spraying, and then opening the traffic.
The SEM electron microscope of the protecting agent prepared in this example is shown in fig. 2, the surface of the sample is smooth under 200 μm, and it can be seen that uniformly dispersed particles are formed on the surface under 500nm after further amplification, as shown in fig. 3, it is known that the protecting agent forms a film on the asphalt surface, and can uniformly cover and protect the asphalt surface.
The protective agent prepared by the embodiment is applied to the colored asphalt, the performance of the protective agent is tested, and as shown in table 1, the protective agent prepared by the preparation method of the embodiment has strong resistance to ultraviolet rays, water resistance, alkali resistance and wear resistance, can keep a good protective effect on the colored asphalt pavement for about one year, has short drying time, and has wide application prospects.
Protective agent failure evaluation criteria: the surface of the protective agent is peeled off and the aggregate is exposed on the surface.
TABLE 1
Example 2:
preparation of the protective agent: the raw materials comprise the following components in parts by weight: 6127 type emulsion (Shanghai Luhua) 45 parts; BB152 wetting agent 0.2 part; 0.2 part of NXZ-A defoaming agent; 3 parts of glycol tridecanoate; ACRYSOLTM RM-12W (Dow) thickener 0.4 parts; 0.1 part of ammonia water (based on the adjustment of the PH value to about 9); 58.5 parts of deionized water.
The protective agent is prepared by the following steps:
weighing 45 parts of 6127 type emulsion (Shanghai Luhua), slowly stirring, and adding 0.2 part of BB152 wetting agent; stirring and dispersing by using a stirrer during adding, wherein the stirring and dispersing rotating speed is 500rpm;
then adding 0.2 part of NXZ-A defoaming agent, and stirring and dispersing by using a stirrer at the stirring and dispersing speed of 500rpm;
adding 3 parts of dodecanol ester serving as a film forming aid and 0.4 part of ACRYSOL RM-12W (Dow) thickening agent, stirring at a stirring speed of 500rpm while adding the thickening agent, then adding the balance of deionized water, adjusting the stirring speed to 850rpm, and rapidly dispersing for 3-5 minutes to ensure that the liquid becomes uniform and transparent.
And finally, adding 0.1 part of 28% ammonia water for pH value adjustment, and adjusting the pH value to 9 to obtain the protective agent.
FT-IR test of the repellent prepared in this example showed that the peak at 3300cm was observed from the characteristic peak in FIG. 1 -1 Peak reduction of 2960cm -1 Methyl peak appears, 3300-2800cm -1 The C-H expansion vibration absorption of the area is less than 3000cm -1 Typically saturated C-H telescopic shock absorption；1750～1700cm -1 Region C = O expansion. According to the peak positions of the characteristic peaks, the main characteristic peaks of the dodecaglycol ester appear.
The prepared protective agent material is poured into a shoulder-back sprayer, spraying operation is carried out immediately after the colored asphalt pavement is finished, the spraying amount is controlled to be about 0.1kg/m < 2 >, so that the whole pavement surface is basically wetted after spraying, and the protective agent material does not flow. And (5) prohibiting pedestrians and vehicles from passing within 10min after spraying, and then opening the traffic.
The SEM electron microscope of the protecting agent prepared in this example is shown in fig. 2, the surface of the sample is smooth under 200 μm, and it can be seen that uniformly dispersed particles are formed on the surface under 500nm after further amplification, as shown in fig. 3, it is known that the protecting agent forms a film on the asphalt surface, and can uniformly cover and protect the asphalt surface.
The protective agent prepared in this example was applied to colored asphalt, and the performance of the protective agent was tested, as shown in table 1:
as can be seen from table 1, the protective agent prepared by the preparation method of the embodiment has strong ultraviolet resistance, water resistance, alkali resistance and wear resistance, can maintain a good protective effect on the colored asphalt pavement in about one year, and has a short drying time and a wide application prospect.
Example 3:
preparation of the protective agent: the raw materials comprise the following components in parts by weight: 50 parts of 6127 type emulsion (Shanghai Luhua); BB152 wetting agent 0.3 parts; 0.3 part of NXZ-A defoaming agent; 5 parts of a dodecyl ester; ACRYSOLTM RM-12W (dow) thickener 0.6 parts; 0.05 part of ammonia water (based on the adjustment of the PH value to be about 10); 43.75 parts of deionized water.
The protective agent is prepared by the following steps:
weighing 50 parts of 6127 type emulsion (Shanghai road chemical), slowly stirring, and adding 0.3 part of BB152 wetting agent; stirring and dispersing by using a stirrer during adding, wherein the stirring and dispersing rotating speed is 500rpm;
then adding 0.3 part of NXZ-A defoaming agent, and stirring and dispersing by using a stirrer at the stirring and dispersing speed of 500rpm;
then 5 parts of dodecanol ester is added as a film forming aid, 0.6 part of ACRYSOL RM-12W (Dow) thickening agent is added while stirring at the stirring speed of 60rpm, then the rest of deionized water is added, the stirring speed is adjusted to 900rpm, and the mixture is rapidly dispersed for 3 to 5 minutes, so that the liquid becomes uniform and transparent.
And finally, adding 0.1 part of 28% ammonia water for pH value adjustment, and adjusting the pH value to 10 to obtain the protective agent.
FT-IR test of the repellent prepared in this example showed that the peak at 3300cm was observed from the characteristic peak in FIG. 1 -1 Peak reduction of 2960cm -1 Methyl peak appears, 3300-2800cm -1 The C-H telescopic vibration absorption of the region is less than 3000cm -1 Generally, saturated C-H telescopic vibration absorption is adopted; 1750 to 1700cm -1 Region C = O expansion. According to the peak positions of the characteristic peaks, the main characteristic peaks of the dodecaglycol ester appear.
The protective agent material prepared by the method is filled into a shoulder-back sprayer, and spraying operation is carried out immediately after the colored asphalt pavement is finished, wherein the spraying amount is controlled to be about 0.1kg/m < 2 >, so that the whole pavement surface is basically wetted after spraying, and the protective agent material does not flow well. And (5) prohibiting pedestrians and vehicles from passing within 10min after spraying, and then opening the traffic.
The SEM electron microscope of the protecting agent prepared in this example is shown in fig. 2, the sample surface is smooth under 200 μm, and further enlarged under 500nm is shown in fig. 3, it can be seen that uniformly dispersed particles are formed on the surface, and it is known that the protecting agent forms a film on the asphalt surface, and can uniformly cover and protect.
The protective agent prepared in this example was applied to colored asphalt, and the performance of the protective agent was tested, as shown in table 1:
as can be seen from table 1, the protective agent prepared by the preparation method of the embodiment has strong ultraviolet resistance, water resistance, alkali resistance and wear resistance, can maintain a good protective effect on the colored asphalt pavement in about one year, and has a short drying time and a wide application prospect.
Comparative example 1:
comparative example 1 differs from example 1 in that the emulsion type 6127 is replaced with at least one of a silicone emulsion and a polyurea emulsion, the other conditions are not changed, the protective agent prepared in comparative example 1 is applied to colored asphalt, and the performance of the protective agent is tested, as shown in table 1:
as can be seen from Table 1, the protective agent prepared by the preparation method of comparative example 1 has inferior ultraviolet resistance and protection time to those of the examples, specifically, when in application, the attenuation rate of the performance under artificial accelerated ultraviolet aging reaches 3%, the protection time of the protective agent is 10 months, and the protective time is shorter and more volatile than that of the examples.
Comparative example 2:
the difference between the comparative example 2 and the example 1 is that the protective agent prepared in the comparative example 3 is applied to the colored asphalt without adding ammonia water and other conditions are not changed, and the performance of the protective agent is tested, as shown in the following table 1:
as can be seen from Table 1, the protective agent prepared by the preparation method of the comparative example 3 has inferior ultraviolet resistance and protection time to those of the examples, specifically, when the protective agent is applied, the attenuation rate of the performance under the condition of artificially accelerating ultraviolet aging reaches 7%, the protection time of the protective agent is 6 months, and the protective agent has shorter protection time and is more volatile than those of the examples.
Comparative example 3:
comparative example 3 differs from example 1 in that 30 parts of 6127 type emulsion are used, and the performance of the protective agent prepared in comparative example 4 is tested on colored asphalt under the same conditions as shown in table 1:
as can be seen from table 1, the protective agent prepared by the preparation method of comparative example 4 has ultraviolet resistance and shorter protection time than those of the examples, specifically, when in application, the attenuation rate of the performance under artificial accelerated ultraviolet aging reaches 8%, the protection time of the protective agent is 5 months, and the protective time is shorter and more volatile than those of the examples.
Claims (7)
1. The preparation method of the protective agent is characterized by comprising the following steps:
step one, adding 6127 type emulsion into a wetting agent, stirring and dispersing to obtain solution one;
step two, adding a defoaming agent into the solution I, stirring and dispersing to obtain a solution II;
step three, adding the decaglycol ester and the thickening agent into the solution II, stirring and dispersing, adding deionized water, stirring and dispersing to obtain a solution III;
and step four, adding ammonia water into the solution III to adjust the pH value to obtain the protective agent.
2. The preparation method of the protectant according to claim 1, wherein the weight ratio of the decaglycol ester, the 6127 type emulsion, the wetting agent, the defoamer, the thickener and the deionized water is as follows: 1 to 5:40 to 50:0.1 to 0.3:0.1 to 0.3:0.2 to 0.6:0.01 to 0.1:43.7 to 58.6.
3. The preparation method of the protectant according to claim 1, wherein in the first step, 6127 type emulsion is added into the wetting agent to be stirred and dispersed, and the stirring and dispersing speed is 400rpm to 600rpm; in the second step, adding a defoaming agent into the first solution, stirring and dispersing at the stirring and dispersing speed of 400-600 rpm; and in the third step, adding the dodecyl glycol ester and the thickening agent into the second solution, stirring and dispersing at the stirring and dispersing rotating speed of 400-600rpm, then adding deionized water, stirring and dispersing to obtain a third solution, adjusting the stirring speed to 800-900 rpm, and rapidly dispersing for 3-5 min.
4. The method for preparing the protectant according to claim 1, wherein in the fourth step, ammonia is used for PH adjustment, and the adjustment range is as follows: 8-10.
5. The agent for protecting against the skin disease prepared by the process according to any one of claims 1 to 4, wherein the agent is a white emulsion having a slightly irritating ammonia odor and a relative density of 1.23g/cm 3 。
6. The protective agent prepared by the preparation method of any one of claims 1 to 4 and the use of the protective agent of claim 5 in colored asphalt.
7. The use of claim 6, wherein said repellent is applied to colored asphalt by a process comprising:
cleaning a color asphalt pavement to ensure that the pavement has no floating layer, accumulated water and loose particles and the color asphalt pavement is kept dry;
step two, uniformly stirring the protective agent, and performing mist spraying on the colored asphalt pavement by using spraying equipment, wherein the spraying amount is controlled to be 0.2kg/m 2 -0.4kg/m 2 ；
And step three, spraying the protective agent and drying the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040720.1A CN115491127A (en) | 2022-08-29 | 2022-08-29 | Preparation method of protective agent, protective agent and application of protective agent |
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