CN102911583B - Preparation method and application method of coating material capable of actively adjusting temperature of road - Google Patents
Preparation method and application method of coating material capable of actively adjusting temperature of road Download PDFInfo
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- CN102911583B CN102911583B CN201210406783.4A CN201210406783A CN102911583B CN 102911583 B CN102911583 B CN 102911583B CN 201210406783 A CN201210406783 A CN 201210406783A CN 102911583 B CN102911583 B CN 102911583B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a preparation method and an application method of a coating material capable of actively adjusting the temperature of a road. Because the absorptivity of an asphalt road to sunlight is higher than 80%, the urban heat island effect can be caused easily in high-temperature seasons. The preparation method of the coating material comprises the following steps: roasting a porous framework material, cooling, adding sulfuric acid, diluting in a constant temperature water bath and filtering to be neutral; drying and grinding for later use; adding the ground material to an absolute ethyl alcohol solution of an energy-storage phase-change material, stirring, drying and grinding to obtain a modified energy-storage phase-change material; and adding the modified energy-storage phase-change material to cation emulsified asphalt and then sequentially adding polyurethane modified water-borne epoxy resin, a polyurethane modified water-borne epoxy resin curing agent and water to finally obtain the coating material. According to the preparation method, the used energy-storage phase-change material is a solid-liquid phase-change material with high latent heat of phase change; when the temperature of the road is higher than the phase change temperature of the phase-change material in summer, the phase-change material absorbs heat through phase change, so as to reduce the overall temperature of the road; and when the temperature of the road is lower than the phase change temperature of the phase-change material in winter, the phase-change material releases heat through the phase change, so as to improve the overall temperature of the road.
Description
Technical field
the present invention relates to a kind of road surface coating material, be specifically related to a kind of preparation method and using method of active adjustment pavement temperature coated material.
Background technology
Bituminous pavement is to the specific absorption of sunlight more than 80%, and high temperature season easily causes urban heat land effect.At present, the method about adjustment pavement temperature, alleviating urban heat island effect mainly contains heat-reflective coating, dankness type road surface, water conservation formula road surface and TR road surface etc.These method shortcomings are obvious, and heat-reflective coating technology cost is higher, reaches 300-400 yuan/m
2; Dankness type road surface and water conservation formula road surface anti-water damage ability bad, pavement durability is poor; TR road surface has blocked the transmission of heat to pavement structure inside, causes road surface internal temperature to differ greatly, and easily makes road surface produce warm plastic forming, reduces pavement durability energy.Therefore, how ensureing that bituminous pavement reduces asphalt pavement warm degree, slows down urban heat land effect when having superperformance and driving a vehicle comfortable is main technological difficulties.
Summary of the invention
The object of this invention is to provide a kind of can accumulation of heat, energy storage, raising road surface is to the preparation method of the active adjustment pavement temperature coated material of the adaptive faculty of temperature variation and using method.
The technology used in the present invention means are:
The preparation method of active adjustment pavement temperature coated material, is characterized in that:
Realized by following steps:
Step one: by the roasting 2 ~ 4 hours under the temperature condition of 450 DEG C ~ 550 DEG C of the stephanoporate framework material of 10 ~ 50 weight parts, 70% sulphuric acid soln of 50 ~ 100 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3 ~ 4 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 50 ~ 100 orders for subsequent use;
Step 3: the energy storage phase change material taking 10 ~ 60 weight parts joins in the dehydrated alcohol of 50 ~ 80 weight parts to stir and forms solution; Taking 10 ~ 60 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2 ~ 3 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 20 ~ 40 weight parts joins in the cationic emulsified bitumen of 10 ~ 20 weight parts, then add the polyurethane-modified aqueous epoxy resins of 10 ~ 30 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 10 ~ 30 weight parts, the water of 10 ~ 40 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material is selected from diatomite, pearlstone, drift pearl, 4A molecular sieve, 5A molecular sieve, 10X molecular sieve, 13X molecular sieve, wilkinite, silica gel.
In step 3, energy storage phase change material is selected from n-tetradecane, Pentadecane, n-hexadecane, Octadecane, NSC 62789, n-docosane, heptacosane in alkanes paraffin, or stearic acid isopropyl acid, butyl stearate, ethene butyl ester, capric acid, lauric acid, tetradecanoic acid, palmitinic acid, the stearic acid in stearic lines.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent is selected from SK-302, LJ910 in modified amine curing agent, or T31, the cardanol amine in phenolic aldehyde amine curing agent, or triethylene tetramine, the diethylenetriamine in fatty acid solidifying agent.
The using method of active adjustment pavement temperature coated material, is characterized in that:
Realized by following steps:
Step one: clean road surface is also dry, covers the identifier marking on road surface;
Step 2: join after the coated material of active adjustment pavement temperature is stirred in the spreading machine with even spraying function;
Step 3: according to the spray width of width of roadway adjustment distribution vehicle, spray according to predetermined route and spread quantity; For the place that distribution vehicle spread is uneven, carry out manual handling in time, spread quantity is 0.3 ~ 0.6kg/m
2;
Step 4: close traffic health is open to traffic after 3 ~ 8 hours.
The present invention has the following advantages:
What the present invention relates to can the coated material of active adjustment pavement temperature, pavement temperature can be reduced by 5 ~ 10 DEG C, pavement temperature can be raised 5 ~ 10 DEG C in the winter time in summer.When summer, pavement temperature was higher, the modification energy storage phase change material in coating absorbs heat by phase in version, reduces road surface bulk temperature; When winter, pavement temperature was lower, the modification energy storage phase change material in coating, by phase in version release of heat, improves road surface bulk temperature.Meanwhile, the adhesivity on this coating and road surface is comparatively strong, has good abrasion resistant effect; Coating also has the early stage microfracture in closed road surface, prevent the effects such as the Water Damage that ravelling falls grain, road table oozes and causes under water, can effective prolonging service life of pavement; Compared with the method regulating pavement temperature, alleviating urban heat island effect with other, the coating of active adjustment pavement temperature is with low cost, construction technology is simple, maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is the temperature variation on the surface of test specimen.
In figure, 1-air, the blank marshal piece of 2-, the marshal piece of 3-active thermal control coating.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The coated material of a kind of active adjustment pavement temperature involved in the present invention be a kind of can accumulation of heat, energy storage coated material, by this coated material brushing on bituminous pavement, can the use temperature of active control bituminous pavement, in high and low temperature alternative change procedure, road pavement temperature variation plays the effect of " peak load shifting ", realize the transfer in time of road surface heat, improve road surface to the adaptive faculty of temperature variation, alleviate the tropical island effect because urban road causes.
Concrete coated material preparation technology is:
After heat-treating stephanoporate framework material, joining to melt has in the ethanol solution of energy storage phase change material, and the constant temperature water bath being placed in 70 DEG C stirs 2 hours, dries, grinds, obtain the powder containing energy storage phase change material; Again this powder is joined in emulsified bitumen, add polyurethane-modified aqueous epoxy resins successively, aqueous epoxy resin curing agent and water, obtain initiatively thermal control coating material.
Energy storage phase change material is selected from alkanes paraffin, stearic lines material.Wherein alkanes paraffin can be n-tetradecane, Pentadecane, n-hexadecane, Octadecane, NSC 62789, n-docosane, one or more in heptacosane, lipid acid series can be stearic acid isopropyl acid, butyl stearate, ethene butyl ester, capric acid, lauric acid, tetradecanoic acid, palmitinic acid, one or more in stearic acid, stephanoporate framework material is mainly diatomite, pearlstone, drift pearl, 4A molecular sieve, 5A molecular sieve, 10X molecular sieve, 13X molecular sieve, wilkinite, one or more in silica gel, energy storage phase change material can be loaded in duct by the application of stephanoporate framework material, phase change material is made to realize solid state, avoid producing trickling during phase change material phase transformation.It is known that it selects kind and multi-component proportioning to be industry, can select according to the situation of buying raw material.
Emulsified bitumen adopts the cationic emulsified bitumen good with road surface adhesivity; The isocyanate terminated base polyurethane prepolymer for use as that polyurethane-modified aqueous epoxy resins utilizes ethylene glycol and tolylene diisocyanate to synthesize, synthesize polyurethane modified epoxy resin with epoxy resin, itself and nonionic emulsifying agent and water are prepared into polyurethane-modified aqueous epoxy resins by inversed phase emulsification.Concrete preparation method be by ethylene glycol with tolylene diisocyanate according to certain mass ratio, be incubated at a certain temperature
Synthesize isocyanate terminated base polyurethane prepolymer for use as, performed polymer is mixed with epoxy resin under certain temperature and certain proportion condition and synthesizes polyurethane modified epoxy resin, above-mentioned materials, nonionic emulsifying agent and water are prepared into polyurethane-modified aqueous epoxy resins by inversed phase emulsification.Polyurethane-modified aqueous epoxy resin curing agent is that one can be melted into water, and can with one or more in the modified amine curing agent of polyurethane-modified aqueous epoxy resins generation curing cross-linking reaction, phenolic aldehyde amine curing agent and fatty acid solidifying agent.
Be below the embodiment of active adjustment pavement temperature coated material preparation method involved in the present invention:
Embodiment 1:
Step one: by the roasting 2 hours under the temperature condition of 450 DEG C of the stephanoporate framework material of 10 weight parts, 70% sulphuric acid soln of 50 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 50 orders for subsequent use;
Step 3: the energy storage phase change material taking 10 weight parts joins in the dehydrated alcohol of 50 weight parts to stir and forms solution; Taking 10 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 20 weight parts joins in the cationic emulsified bitumen of 10 weight parts, then add the polyurethane-modified aqueous epoxy resins of 10 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 10 weight parts, the water of 10 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material selection diatomite.
In step 3, energy storage phase change material is selected from n-tetradecane in alkanes paraffin or Pentadecane.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the SK-302 in modified amine curing agent.
Embodiment 2:
Step one: by the roasting 2.5 hours under the temperature condition of 470 DEG C of the stephanoporate framework material of 10 weight parts, 70% sulphuric acid soln of 60 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 60 orders for subsequent use;
Step 3: the energy storage phase change material taking 20 weight parts joins in the dehydrated alcohol of 50 weight parts to stir and forms solution; Taking 20 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 25 weight parts joins in the cationic emulsified bitumen of 12 weight parts, then add the polyurethane-modified aqueous epoxy resins of 14 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 14 weight parts, the water of 16 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material selection pearlstone.
In step 3, energy storage phase change material is selected from n-hexadecane in alkanes paraffin or Octadecane.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the LJ910 in modified amine curing agent.
Embodiment 3:
Step one: by the roasting 3 hours under the temperature condition of 490 DEG C of the stephanoporate framework material of 20 weight parts, 70% sulphuric acid soln of 70 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3.5 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 70 orders for subsequent use;
Step 3: the energy storage phase change material taking 30 weight parts joins in the dehydrated alcohol of 60 weight parts to stir and forms solution; Taking 30 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2.5 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 30 weight parts joins in the cationic emulsified bitumen of 14 weight parts, then add the polyurethane-modified aqueous epoxy resins of 18 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 18 weight parts, the water of 22 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material selection drift pearl.
In step 3, energy storage phase change material is selected from NSC 62789, n-docosane or heptacosane in alkanes paraffin.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the T31 in phenolic aldehyde amine curing agent.
Embodiment 4:
Step one: by the roasting 3.5 hours under the temperature condition of 510 DEG C of the stephanoporate framework material of 30 weight parts, 70% sulphuric acid soln of 80 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3.5 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 80 orders for subsequent use;
Step 3: the energy storage phase change material taking 40 weight parts joins in the dehydrated alcohol of 70 weight parts to stir and forms solution; Taking 40 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2.5 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 35 weight parts joins in the cationic emulsified bitumen of 16 weight parts, then add the polyurethane-modified aqueous epoxy resins of 22 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 22 weight parts, the water of 28 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material is selected from the 4A molecular sieve of molecular sieve series, 5A molecular sieve, 10X molecular sieve or 13X molecular sieve.
In step 3, energy storage phase change material is selected from stearic acid isopropyl acid in stearic lines or butyl stearate.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the cardanol amine in phenolic aldehyde amine curing agent.
Embodiment 5:
Step one: will: the roasting 4 hours under the temperature condition of 530 DEG C of the stephanoporate framework material of 40 weight parts, 70% sulphuric acid soln of 90 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 4 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 90 orders for subsequent use;
Step 3: the energy storage phase change material taking 50 weight parts joins in the dehydrated alcohol of 80 weight parts to stir and forms solution; Taking 50 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 3 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 40 weight parts joins in the cationic emulsified bitumen of 18 weight parts, then add the polyurethane-modified aqueous epoxy resins of 26 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 26 weight parts, the water of 34 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material selection wilkinite.
In step 3, energy storage phase change material is selected from ethene butyl ester, capric acid or lauric acid in stearic lines.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the triethylene tetramine in fatty acid solidifying agent.
Embodiment 6:
Step one: by the roasting 4 hours under the temperature condition of 550 DEG C of the stephanoporate framework material of 50 weight parts, 70% sulphuric acid soln of 100 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 4 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 100 orders for subsequent use;
Step 3: the energy storage phase change material taking 60 weight parts joins in the dehydrated alcohol of 80 weight parts to stir and forms solution; Taking 60 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 3 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 40 weight parts joins in the cationic emulsified bitumen of 20 weight parts, then add the polyurethane-modified aqueous epoxy resins of 30 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 30 weight parts, the water of 40 weight parts successively, obtain the coated material of active adjustment pavement temperature.
In step one, stephanoporate framework material selection silica gel.
In step 3, energy storage phase change material selects tetradecanoic acid, palmitinic acid or stearic acid in stearic lines.
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification.
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the diethylenetriamine in fatty acid solidifying agent.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading specification sheets of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
The using method of active adjustment pavement temperature coated material involved in the present invention is realized by following steps:
Step one: clean road surface is also dry, covers the identifier marking on road surface;
Step 2: join after the coated material of active adjustment pavement temperature is stirred in the spreading machine with even spraying function;
Step 3: according to the spray width of width of roadway adjustment distribution vehicle, spray according to predetermined route and spread quantity; For the place that distribution vehicle spread is uneven, carry out manual handling in time, spread quantity is 0.3 ~ 0.6kg/m
2;
Step 4: close traffic health is open to traffic after 3 ~ 8 hours.
Coating is thermoregulation effect initiatively, as shown in Figure 1:
Spread upon by coated material on marshal piece, test specimen to be coated solidification is placed on outdoor, utilizes the temperature regime on the surface of test specimen under moisture recorder record different time points, specifically see shown in lower Fig. 1.Can it is evident that from figure the marshal piece temperature of the coating scribbling active adjustment pavement temperature is lower about 5 DEG C than the temperature of the not marshal piece of coating layer.
Claims (2)
1. the preparation method of active adjustment pavement temperature coated material, is characterized in that:
Realized by following steps:
Step one: by the roasting 3.5 hours under the temperature condition of 510 DEG C of the stephanoporate framework material of 30 weight parts, 70% sulphuric acid soln of 80 weight parts is added after being cooled to room temperature, be placed in the water bath with thermostatic control 3.5 hours of 70 DEG C, then add deionized water and dilute and filter till filtrate is neutrality;
Step 2: moved in dry container by step one resulting materials, is placed in dry 24 hours of the thermostatic drying chamber of 110 DEG C, is ground to 80 orders for subsequent use;
Step 3: the energy storage phase change material taking 40 weight parts joins in the dehydrated alcohol of 70 weight parts to stir and forms solution; Taking 40 weight part step 2 resulting materials again adds wherein, and the constant temperature water bath being placed in 70 DEG C stirs 2.5 hours, and oven dry, grinding obtain modification energy storage phase change material;
Step 4: the modification energy storage phase change material obtained by step 3 taking 35 weight parts joins in the cationic emulsified bitumen of 16 weight parts, then add the polyurethane-modified aqueous epoxy resins of 22 weight parts, the polyurethane aqueous epoxy resin solidifying agent of 22 weight parts, the water of 28 weight parts successively, obtain the coated material of active adjustment pavement temperature;
In step one, stephanoporate framework material is selected from the 4A molecular sieve of molecular sieve series, 5A molecular sieve, 10X molecular sieve or 13X molecular sieve;
In step 3, energy storage phase change material is selected from the butyl stearate in stearic lines;
In step 4, polyurethane-modified aqueous epoxy resins is with polyoxyethylene glycol and Toluene-2,4-diisocyanate, 4 vulcabond are raw material, under 70 DEG C of reaction conditionss, react 2h synthesize base polyurethane prepolymer for use as containing-NCO, the epoxy resin after anhydrating and above-mentioned base polyurethane prepolymer for use as are reacted 1 hour to obtain polyurethane modified epoxy resin under nitrogen atmosphere, 70 DEG C of reaction conditionss;
Polyurethane modified epoxy resin, nonionic emulsifying agent and water conservancy colloidal mill are prepared polyurethane-modified aqueous epoxy resins by inversed phase emulsification;
In step 4, polyurethane-modified aqueous epoxy resin curing agent chooses the cardanol amine in phenolic aldehyde amine curing agent.
2. the using method of coated material that obtains of the preparation method of active adjustment pavement temperature coated material as claimed in claim 1, is characterized in that:
Realized by following steps:
Step one: clean road surface is also dry, covers the identifier marking on road surface;
Step 2: join after the coated material of active adjustment pavement temperature is stirred in the spreading machine with even spraying function;
Step 3: according to the spray width of width of roadway adjustment distribution vehicle, spray according to predetermined route and spread quantity; For the place that distribution vehicle spread is uneven, carry out manual handling in time, spread quantity is 0.3 ~ 0.6kg/m
2;
Step 4: close traffic health is open to traffic after 3 ~ 8 hours.
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