CN108395708B - Caulking material for color asphalt pavement and preparation method thereof - Google Patents
Caulking material for color asphalt pavement and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a caulking material for a colored asphalt pavement and a preparation method thereof. The caulking material comprises the following components in percentage by mass: 8 to 20 percent of petroleum resin, 15 to 40 percent of compatilizer, 22 to 60 percent of polymer, 0.1 to 2.0 percent of grafting agent, 0.1 to 3.0 percent of initiator, 0.05 to 2.0 percent of activator, 1 to 4 percent of anti-aging agent and 2 to 5 percent of wear-resistant agent. The caulking material has excellent high-temperature performance, low-temperature performance and deformation recovery capability, has higher softening point, stronger cohesive force and higher low-temperature elongation and low-temperature ductility, can be well mixed with the color pigment, and can effectively repair the color asphalt pavement with cracks after being mixed.
Description
Technical Field
The invention relates to a caulking material and a preparation method thereof, in particular to a caulking material for a colored asphalt pavement and a preparation method thereof.
Background
The color asphalt pavement improves the monotonicity of the black color of the common asphalt pavement, can be matched and coordinated with surrounding buildings and landscapes, and has obvious landscape effect. Colored asphalt has entered the experimental promotion stage as a paving material for beautifying the environment, and various cities have attempted to use colored asphalt concrete for paving urban roads, such as Shanghai, Beijing, Tianjin, Changsha, Shenyang, and mansion. In addition, colored asphalt has gained increasing attention to the organization and management of traffic. The asphalt pavements of different colors can improve the recognition effect of the driver and can also make the attention of the driver more concentrated, thereby playing the roles of inducing traffic flow, driving safely and making traffic management visualized.
The colored asphalt pavement can cause the same or similar diseases as the asphalt pavement of the highway, for example, the colored asphalt pavement is easy to cause the diseases such as cracks, gullies and the like along with the influence of external factors such as ultraviolet rays, rainwater and the like. Once cracks, gullies and other diseases occur, water can permeate into the base course of the pavement through the cracks, so that the base course of the pavement is damaged, and the service life of the colored pavement is greatly damaged.
The cracks of the asphalt pavement of the highway are generally repaired by adopting special caulking materials. Caulking materials, unlike asphalts or modified asphalts used in road asphalt and colored asphalt, have very special requirements:
(1) the high-temperature service performance is excellent, and the phenomena of flowing, oil bleeding and being taken away by vehicles can not be generated under the condition of high temperature in summer; (2) the low-temperature service performance is excellent, the phenomena of brittleness and falling-off can not occur in winter at low temperature, the stress of low-temperature expansion at a pavement crack can be borne, and the pavement crack can not be fractured; (3) the elastic recovery performance is good, the strain caused by crack extension can be borne, and the elastic recovery rate is very high; (4) the caulking material needs to be poured into cracks in a hot melting state, so that stone materials cannot be added into the caulking material to enhance the compressive strength or the self-supporting capacity, and the caulking material is different from the conventional road asphalt added with the stone materials, so that the caulking material has the advantages that the caulking material has high compressive strength or self-supporting capacity at normal temperature and has high bearing capacity; (5) it must have a strong adhesive force so that the caulk material can bond the cracks without repeated cracks.
The caulking materials of the existing highway asphalt pavement are divided into two types, the first type is cold asphalt materials, including liquid asphalt, solvent-type modified liquid asphalt, modified and non-modified emulsified asphalt and the like; the second category is hot asphalt materials, including modified asphalt, asphalt rubber, rubber modified asphalt, low modulus rubber modified asphalt, and the like. However, the caulking materials of the existing road asphalt pavement are all added with asphalt, so that the caulking materials are changed into black, even if color pigments are added, the caulking materials are in a black state, the appearance effect can be seriously influenced after the cracks of the color pavement are modified, and the existing asphalt caulking materials are difficult to mix with the color pigments or mix with the color pigments, the repair effect can be influenced, the overall performance of the caulking materials is reduced, and the service life is influenced.
In conclusion, the colored asphalt pavement is inevitably affected by external environment to cause diseases such as cracks, the repair of the cracks needs a caulking material with special requirements, but the existing caulking material cannot meet the requirements of the colored asphalt pavement, so that the repair of the cracks of the colored pavement is still blank, and the popularization of the colored pavement is inhibited to a certain extent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a caulking material for a colored asphalt pavement and a preparation method thereof. The caulking material has excellent high-temperature performance, low-temperature performance and deformation recovery capability, has higher softening point, strong cohesive force and higher low-temperature elongation and low-temperature ductility, can be well mixed with color pigments, and can effectively repair color asphalt pavements with cracks after being mixed.
The invention provides a caulking material for a colored asphalt pavement, which comprises the following components in percentage by mass: 8 to 20 percent of petroleum resin, 15 to 40 percent of compatilizer, 22 to 60 percent of polymer, 0.1 to 2.0 percent of grafting agent, 0.1 to 3.0 percent of initiator, 0.05 to 2.0 percent of activator, 1 to 4 percent of anti-aging agent and 2 to 5 percent of wear-resistant agent.
The petroleum resin is C5 petroleum resin and/or C9 petroleum resin, and the chroma of the petroleum resin is preferably 6-19.
The compatilizer is one or more of atmospheric distillate oil, refined aromatic oil, rubber filling oil, deasphalted oil and catalytic cracking slurry oil.
The viscosity of the compatilizer at 100 ℃ is 30-1500 mm2And/s, the sum of the saturated component content and the aromatic component content in the compatilizer is more than or equal to 70 wt%.
The polymer is a block copolymer containing plastics and unsaturated double bonds, the block copolymer containing the unsaturated double bonds is preferably one or more of SBS, SBR, EVA, SIS and SEP, the plastics are preferably one or more of PP, PE, nylon, PS, PVC and ABS, the molecular weight of the block copolymer containing the unsaturated double bonds can be preferably 100000-300000, the molecular weight of the plastics can be preferably 10000-500000, and the weight ratio of the plastics to the block copolymer containing the unsaturated double bonds is preferably 1: (0.3-4.0).
The grafting agent is one or more of organic acid anhydride, carboxylic acid, epoxy resin, oxazoline, imide and isocyanate. The organic acid anhydride is preferably one or more of acetic anhydride, phthalic anhydride, maleic anhydride and benzoic anhydride, and the carboxylic acid is preferably one or more of formic acid, acetic acid, fatty acid and aromatic acid.
The initiator is an azo compound and/or a peroxide compound, the azo compound is preferably one or more of azodiisobutyronitrile and azodicarbonamide, and the peroxide compound is preferably one or more of benzoyl peroxide, benzoyl peroxide tert-butyl cyanide, methyl ethyl ketone peroxide and dicumyl peroxide.
The plasticizer is one or more of dioctyl phthalate, di-n-octyl phthalate and butyl benzyl phthalate.
The activating agent is metal oxide and/or long-chain organic acid, the metal oxide is preferably one or more of zinc oxide, ferrous oxide, titanium oxide, cobalt oxide, chromium oxide and vanadium oxide, and the long-chain organic acid is preferably one or more of stearic acid, palmitic acid, oleic acid, linoleic acid, n-decanoic acid, undecylenic acid, dodecanoic acid, tetradecanoic acid and hexadecanoic acid.
The anti-aging agent is one or more of anti-aging agent D, anti-aging agent RD, anti-aging agent 124, anti-aging agent MB and anti-aging agent DNP.
The anti-wear agent can be one or more low molecular organosilicon compounds, preferably one or more of Si69, Si50, Si602, A151, A171 and A172.
The invention provides a preparation method of the caulking material of the colored asphalt pavement, which comprises the following steps:
(1) uniformly mixing a polymer, a grafting agent, an initiator, an activating agent and an anti-aging agent;
(2) adding the uniform mixture in the step (1) into a double-screw or single-screw extruder for mixing;
(3) heating and melting petroleum resin and a compatilizer into uniform mixed liquor;
(4) and (3) adding the mixed material obtained in the step (2) into the mixed solution obtained in the step (3) for swelling, and forming a stable cementing material through high-speed shearing to obtain the caulking material.
In the step (1), the mixing temperature is 15-40 ℃ and the mixing time is 10-30 min; in the step (2), the mixing temperature is 160-200 ℃, and the circulating mixing times are 2-5.
In the step (3), the heating and melting temperature is 100-150 ℃ and the time is 20-60 min.
In the step (4), the swelling temperature is 150-170 ℃, the swelling time is 30-90 min, the stirring temperature is 170-200 ℃, and the stirring time is 4-12 h.
The high-speed shearing can be carried out by the conventional technology in the field, such as high-speed shearing by using a colloid mill, and the high-speed shearing frequency of the colloid mill can be 1-5 times.
Compared with the prior art, the invention has the beneficial effects that:
(1) the caulking material has excellent high-temperature performance, low-temperature performance and deformation recovery capacity, has higher softening point, stronger cohesive force, higher low-temperature stretching rate and low-temperature ductility, meets the special index requirements of the caulking material, avoids the problem of color masking caused by using a matrix asphalt raw material, can be mixed with various color pigments to present required colors, and can be used for repairing cracks of colored pavements of various colors.
Moreover, the color asphalt caulking material can be well mixed with pigments with various colors such as red, yellow, green, blue and the like, the service performance of the caulking material cannot be greatly reduced after the mixing, and the color asphalt caulking material can achieve good repairing performance and repairing effect on cracks of color pavements.
(2) The activator plays an important role in the type of cross-linking bond, cross-linking density and mechanical property of the polymer, so that the original side chain on the polymer molecule is selectively combined with the active chemical bond on other molecules, a stable reticular colloid structure can be formed among the petroleum resin, the compatilizer and the polymer, the tear resistance and the wear resistance of the product are improved, and the performance of the product is more stable.
(3) Because the thermal stability of the block copolymer containing unsaturated double bonds is poor, the unsaturated double bonds are broken by the grafting agent and are connected with plastic molecules to form a novel polymer material with the performance of plastic and rubber, the problems of poor compatibility and instability between the polymer and the compatilizer are solved, the initiator can be matched with the grafting agent, the grafting rate is obviously improved, and the problems of low grafting rate, poor compatibility between the polymer and the compatilizer and poor thermal stability of products caused by the single use of the grafting agent are solved.
(4) The method comprises the steps of pretreating the polymer, the grafting agent, the initiator, the activating agent and the anti-aging agent through an extruder, removing small molecular impurities in the polymer, improving the reaction activity, and enabling different types of polymers to become uniform systems with stable performance.
(5) Because the petroleum resin can age and affect the product performance after being heated at high temperature for a long time, the invention adopts the compatilizer which can be in a liquid state at 100 ℃ and can melt the petroleum resin at 100-150 ℃ and swell the polymer at 150-170 ℃, thus the invention can quickly and fully complete the melting and swelling, can avoid the aging of the petroleum resin and the volatilization of light components in the compatilizer, and can quickly generate active chemical bonds by reacting with the mixed material at 160-200 ℃, thus the polymer can quickly complete the polymerization and grafting reaction, further avoiding the aging of the petroleum resin, leading the polymerization and grafting reaction to be more thorough and leading the product property to be more stable.
Detailed Description
The technical features of the present invention will be further described below by way of examples, which are not intended to limit the present invention. In the present invention, wt% is a mass fraction.
Example 1
(1) Uniformly mixing a polymer, a grafting agent, an initiator, an activating agent and an anti-aging agent MB (2-mercaptobenzimidazole);
(2) adding the uniform mixture obtained in the step (1) into a double-screw extruder for mixing, wherein the temperature near a feed inlet is not higher than 60 ℃, the temperature of a reaction section is 180 ℃, the temperature of an extrusion opening is 170 ℃, and after 3 cycles, a mixed material is obtained;
(3) heating the petroleum resin and the compatilizer to 140 ℃ to completely melt the petroleum resin and the compatilizer into uniform mixed solution;
(4) and (3) adding the material obtained in the step (2) into the mixed solution in the step (3), uniformly stirring, swelling at the temperature of 160 ℃ for 40min, passing all the mixed materials through a colloid mill at the rotating speed of 3000 r/min for 3 times, and then stirring in a product tank at the temperature of 190 ℃ for 4 hours to obtain the caulking material. The name, the proportion and the type of the raw materials of the caulking material are shown in the following table 1, and the properties of the obtained product are shown in the following table 6.
TABLE 1 name, proportion and type of caulking material
| Class of materials | Name of Material | Specification and model | Mass fraction of% |
| Petroleum resins | C5 | Color number 6 | 10 |
| Compatilizer | Deasphalted oil | Viscosity at 100 ℃ of 300-450mm2S, wherein the saturated component content is 16wt%, and the aromatic component content is 55wt% | 37 |
| Polymer 1 | PE | Molecular weight of about 4 ten thousand | 10 |
| Polymer 2 | SBR | Molecular weight of about 15 ten thousand | 30 |
| Grafting agent | Maleic anhydride | Solid state | 1.5 |
| Initiator | Azobisisobutyronitrile | Solid state | 2.5 |
| Activating agent | Zinc oxide | Powder of | 1.5 |
| Anti-aging agent | Anti-aging agent MB | Powder of | 3 |
| Wear-resisting agent | Si69 | Solid body | 4.5 |
Example 2
(1) Uniformly mixing a polymer, a grafting agent, an initiator, an activating agent and an anti-aging agent;
(2) adding the uniform mixture obtained in the step (1) into a single-screw extruder for mixing, wherein the temperature near a feed inlet is not higher than 60 ℃, the temperature of a reaction section is 180 ℃, the temperature of an extrusion opening is 170 ℃, and after 3 cycles, a mixed material is obtained;
(3) heating the petroleum resin and the compatilizer to 140 ℃ to completely melt the petroleum resin and the compatilizer into uniform mixed solution;
(4) and (3) adding the material obtained in the step (2) into the mixed solution in the step (3), uniformly stirring, swelling at the temperature of 160 ℃ for 40min, passing all the mixed materials through a colloid mill at the rotating speed of 3000 r/min for 3 times, and then stirring in a product tank at the temperature of 190 ℃ for 8 hours to obtain the caulking material. The name, the proportion and the type of the raw materials of the caulking material are shown in the following table 2, and the properties of the obtained product are shown in the following table 6.
TABLE 2 name, ratio and type of the raw materials of the caulking material
| Class of materials | Name of Material | Specification and model | Mass fraction of% |
| Petroleum resins | C5 | Color number 6 | 19 |
| Compatilizer | Rubber filling oil | Viscosity of 50-100mm at 100 deg.C2S, wherein the saturated component content is 23wt%, and the aromatic component content is 48wt% | 39 |
| Polymer 1 | SBR | Molecular weight of about 15 ten thousand | 10 |
| Polymer 2 | Nylon 66 | Molecular weight of about 2 ten thousand | 15 |
| Polymer 3 | PE | Molecular weight of about 4 ten thousand | 7 |
| Grafting agent | Maleic anhydride | Solid state | 1 |
| Initiator | Azobisisobutyronitrile | Solid state | 2 |
| Activator 1 | Zinc oxide | Powder of | 0.5 |
| Activator 2 | Stearic acid | Solid state | 0.5 |
| Anti-aging agent | Anti-aging agent MB | Powder of | 3 |
| Wear-resisting agent | Si50 | Solid body | 3 |
Example 3
(1) Uniformly mixing a polymer, a grafting agent, an initiator, an activating agent and an anti-aging agent;
(2) adding the uniform mixture obtained in the step (1) into a double-screw extruder for mixing, wherein the temperature near a feed inlet is not higher than 60 ℃, the temperature of a reaction section is 180 ℃, the temperature of an extrusion opening is 170 ℃, and after 3 cycles, a mixed material is obtained;
(3) heating the petroleum resin and the compatilizer to 140 ℃ to completely melt the petroleum resin and the compatilizer into uniform mixed solution;
(4) and (3) adding the material obtained in the step (2) into the mixed solution in the step (3), uniformly stirring, swelling at the temperature of 160 ℃ for 40min, passing all the mixed materials through a colloid mill at the rotating speed of 3000 r/min for 3 times, and then stirring in a product tank at the temperature of 190 ℃ for 8 hours to obtain the caulking material. The name, the proportion and the type of the raw materials of the caulking material are shown in the following table 3, and the properties of the obtained product are shown in the following table 6.
TABLE 3 name, proportion and type of caulking material
| Class of materials | Name of Material | Specification and model | Mass fraction of% |
| Petroleum resins | C9 | Color number 19 | 18 |
| Compatilizer | Refining aromatic oils | Viscosity at 100 ℃ of 800-2S, wherein the saturated component content is 20wt%, and the aromatic component content is 56wt% | 36 |
| Polymer 1 | SBR | Molecular weight of about 12 ten thousand | 8 |
| Polymer 2 | Nylon 66 | Molecular weight of about 2 ten thousand | 25 |
| Grafting agent | Maleic anhydride | Solid state | 1.5 |
| Initiator | Azobisisobutyronitrile | Solid state | 2 |
| Activator 1 | Zinc oxide | Powder of | 1.5 |
| Activator 2 | Dodecanoic acid | Solid state | 0.1 |
| Anti-aging agent | Anti-aging agent MB | Powder of | 4 |
| Wear-resisting agent | Si50 | Solid body | 4 |
Comparative example 1
Adding petroleum resin and a compatilizer into a reaction kettle, heating to 150 ℃ to completely dissolve the petroleum resin and the compatilizer, adding polymer SBS, uniformly stirring, passing through a colloid mill with the rotating speed of 3000 r/min for 1 time, adding a viscosity reducer and an activating agent, uniformly stirring, passing through the colloid mill with the rotating speed of 3000 r/min for 2 times after the reaction is finished, then adding a hydrocarbon mixture, and uniformly stirring to obtain the color pavement material. The color pavement material prepared by the comparative example has the following raw material names, proportions and types shown in the following table 4, and the performances of the obtained product are shown in the following table 6.
TABLE 4 raw material names, proportions and types of color pavement materials
| Class of materials | Name of Material | Specification and model | Mass fraction of% |
| Petroleum resins | C9 | Color number 19 | 34 |
| Compatilizer | Refining aromatic oils | Viscosity at 100 ℃ of 800-2S, wherein the saturated component content is 20wt%, and the aromatic component content is 56wt% | 38 |
| Polymer and method of making same | SBS | Molecular weight of about 12 ten thousand | 6 |
| Viscosity reducer | - | Yellow color with fineness greater than 80 | 2.5 |
| Activating agent | Elemental sulfur | Fineness greater than 100 | 1 |
| Hydrocarbon mixture | Alkanes or cycloalkanes having 10 to 22 carbon atoms | Liquid state | 18.5 |
Comparative example 2
Heating the matrix asphalt to 150 ℃, adding the compatilizer and the polymer SBS, uniformly stirring, passing through a colloid mill with the rotating speed of 3000 r/min for 1 time, adding the vulcanizing agent, and stirring in a product tank at 170 ℃ for 8 hours to obtain the caulking material of the conventional asphalt pavement. The names, specification types and proportions of the raw materials of the comparative example are shown in Table 5, and the properties of the obtained product are shown in Table 6.
TABLE 5 name, ratio and type of materials for caulking materials for conventional asphalt pavement
| Class of materials | Name of Material | Specification and model | Mass fraction of% |
| Base asphalt | - | No. 90 asphalt | 55 |
| Compatilizer | Refining aromatic oils | Viscosity at 100 ℃ of 800-2S, wherein the saturated component content is 20wt%, and the aromatic component content is 56wt% | 22 |
| Polymer and method of making same | SBS | Molecular weight of about 12 ten thousand | 22 |
| Vulcanizing agent | Elemental sulfur | Powder form | 1 |
Comparative example 3
The materials and process of this comparative example 3 are essentially the same as in example 1, except that: the properties of the product obtained without the addition of zinc oxide are shown in Table 6. In the preparation process, serious gel can be generated to influence the transportation and use of products, and the product performance is very poor. If long-time shearing is needed to avoid the occurrence of the gel phenomenon, the production energy consumption is large, and the prepared product still has the possibility of gel and is not beneficial to later use.
Comparative example 4
The comparative example 4 was substantially the same as example 1 in terms of the following raw materials and methods: the properties of the product obtained without addition of azobisisobutyronitrile are shown in Table 6. Wherein, the reactivity of the block copolymer containing unsaturated double bonds is reduced, the plastic can not form a uniform stable system with the block copolymer containing unsaturated double bonds, the grafting reaction on the expected double bonds can not be completed, the grafting effect is not good, and the compatibility of the polymer and the compatilizer is poor; when the plastic is stressed at low temperature, a plurality of micro cracks are generated in the plastic, so that the toughness of the material is reduced, and the low-temperature crack resistance of the product is reduced.
Test example 1
The materials obtained in examples 1 to 3 and comparative examples 1 to 4 were tested. The penetration was measured according to GB/T4509, the softening point was measured according to GB/T4507, the ductility was measured according to GB/T4508, the elastic recovery was measured according to SH/T0737, and the brittle point was measured according to GB/T4510, the results of which are shown in Table 6.
TABLE 6 characteristics of jointing materials of the colored asphalts
| Test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Penetration at 25 deg.C, 0.1mm | 86 | 65 | 51 | ＞200 | 67 | 81 | 85 |
| Softening point, DEG C | 92.8 | 104.5 | 118.4 | 28.8 | 94 | 95.2 | 94.3 |
| Ductility, cm at 5 DEG C | 64 | 53 | 30 | 58 | 52 | 11 | 18 |
| Elastic recovery of% | 90 | 98 | 91 | 37 | 65 | 71 | 77 |
| Brittle point, deg.C | -26 | -20 | -19 | ＜-30 | -20 | -12 | -20 |
| Fluidity, mm | 0 | 0 | 0 | ＞5 | 0.52 | 3 | 4 |
| Elongation at-10 ℃ in mm | ≥15 | ≥15 | ≥15 | ≥15 | ≥15 | 11 | 13 |
The performance index requirements of the asphalt caulking filling material can be seen in JT/T589 and 2004 cement concrete pavement caulking sealing material, which is specifically shown in the following Table 7.
TABLE 7 Performance index of heating construction type sealing material
| Test items | High elasticity type |
| Penetration, 0.1mm | ＜90 |
| Elasticity (recovery) rate% | ≥60 |
| Fluidity, mm | ＜2 |
| Elongation (-10 ℃), mm | ≥15 |
From tables 6 and 7, it can be seen that: the performance of the comparative example 1 basically does not meet the standard technical requirements, and the comparative example 1 can only be used after being mixed with stone materials and cannot repair small cracks; the performance of the comparative example 2 is equivalent to that of the caulking material of the invention, but the comparative example 2 takes black road asphalt as a raw material, the appearance is black, and the color of the road asphalt cannot be changed after the pigment is added, so that the road asphalt is used for repairing colored pavements to influence the appearance effect.
The caulking material of the embodiments 1 to 3 of the invention not only meets the technical requirements of the standard, but also can repair color pavements of various colors, and has strong practicability.
Test example 2
The materials obtained in examples 1 to 3 and comparative examples 1 and 2 were blended with pigments.
The materials obtained in examples 1 to 3 and comparative examples 1 and 2 were heated to be flowable, and 5% of red iron oxide was added thereto, respectively, and the test properties are shown in Table 8.
TABLE 8
| Item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Appearance state | Red solid state | Red solid state | Red solid state | Red mucus | Black solid state |
| Elastic recovery of% | 86 | 91 | 82 | 29 | 47 |
| Brittle point, deg.C | -25 | -18 | -17 | -24 | -15 |
| Rotational viscosity at 135 ℃ in Pa.s | 3.757 | 4.105 | 4.637 | 0.875 | 3.457 |
As can be seen from the data in Table 8, the elastic recovery of comparative examples 1 and 2 is lower than the standard requirement after the pigment is added, while the invention still meets the requirements; from the appearance, comparative example 1 is red viscous liquid, the elastic recovery rate is very poor, and it cannot be directly used for pavement crack repair, and comparative example 2 is black solid, and it is not suitable for color pavement crack repair.
Test example 3
After construction, the caulking material of the embodiment 1-3 can be tightly bonded with the periphery of a crack, and no peeling or fracture phenomenon occurs after the caulking material is actually used for 1 year, and the expected service life is 5-10 years.
Claims (17)
1. The caulking material for the colored asphalt pavement is characterized by being a heating construction type caulking material and consisting of the following components in parts by mass: 8 to 20 percent of petroleum resin, 15 to 40 percent of compatilizer, 32 to 60 percent of polymer, 0.1 to 2.0 percent of grafting agent, 0.1 to 3.0 percent of initiator, 0.05 to 2.0 percent of activator, 1 to 4 percent of anti-aging agent and 2 to 5 percent of wear-resistant agent;
the petroleum resin is C5Petroleum resin and/or C9Petroleum resin;
the compatilizer is one or more of normal pressure distillate oil, refined aromatic oil, rubber filling oil, deasphalted oil and catalytic cracking slurry oil;
the polymer is plastic and a block copolymer containing unsaturated double bonds;
the grafting agent is one or more of organic acid anhydride, carboxylic acid, epoxy resin, oxazoline, imide and isocyanate;
the initiator is an azo compound;
the activator is a metal oxide;
the anti-aging agent is one or more of an anti-aging agent D, an anti-aging agent RD, an anti-aging agent 124, an anti-aging agent MB and an anti-aging agent DNP;
the anti-wear agent is one or more low-molecular organosilicon compounds.
2. The caulking material of claim 1, wherein: the chroma of the petroleum resin is 6-19.
3. The caulking material of claim 1, wherein: the viscosity of the compatilizer at 100 ℃ is 30-1500 mm2And/s, the sum of the saturated component content and the aromatic component content in the compatilizer is more than or equal to 70 wt%.
4. The caulking material of claim 1, wherein: the block copolymer containing unsaturated double bonds is one or more of SBS, SBR, EVA, SIS and SEP.
5. The caulking material of claim 1, wherein: the plastic is one or more of PP, PE, nylon, PS, PVC and ABS.
6. The caulking material of claim 1, wherein: the molecular weight of the block copolymer is 100000-300000.
7. The caulking material of claim 1, wherein: the molecular weight of the plastic is 10000-500000.
8. The caulking material of claim 1, wherein: the weight ratio of the plastic to the unsaturated double bond-containing block copolymer is 1: (0.3-4.0).
9. The caulking material of claim 1, wherein: the organic acid anhydride is one or more of acetic anhydride, phthalic anhydride, maleic anhydride and benzoic anhydride.
10. The caulking material of claim 1, wherein: the carboxylic acid is one or more of formic acid, acetic acid, fatty acid and aromatic acid.
11. The caulking material of claim 1, wherein: the azo compound is one or more of azodiisobutyronitrile and azodicarbonamide.
12. The caulking material of claim 1, wherein: the metal oxide is one or more of zinc oxide, ferrous oxide, titanium oxide, cobalt oxide, chromium oxide and vanadium oxide.
13. The caulking material of claim 1, wherein: the wear-resisting agent is one or more of Si69, Si50, Si602, A151, A171 and A172.
14. A method for preparing a caulking material for a colored asphalt pavement according to any one of claims 1 to 13, comprising the steps of:
(1) uniformly mixing a polymer, a grafting agent, an initiator, an activating agent and an anti-aging agent;
(2) adding the uniform mixture in the step (1) into a double-screw or single-screw extruder for mixing to obtain a mixed material;
(3) heating and melting petroleum resin and a compatilizer into uniform mixed liquor;
(4) and (3) adding the mixed material obtained in the step (2) into the mixed solution obtained in the step (3) for swelling, forming a stable cementing material through a colloid mill, and then uniformly stirring to obtain the caulking material.
15. The method of claim 14, wherein: in the step (1), the mixing temperature is 15-40 ℃ and the mixing time is 10-30 min; in the step (2), the mixing temperature is 160-200 ℃, and the circulating mixing times are 2-5.
16. The production method according to claim 14 or 15, characterized in that: in the step (3), the heating and melting temperature is 100-150 ℃ and the time is 20-60 min.
17. The production method according to claim 14 or 15, characterized in that: in the step (4), the swelling temperature is 150-170 ℃, the swelling time is 30-90 min, the stirring temperature is 170-200 ℃, and the stirring time is 4-12 h.
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| CN111592771B (en) * | 2020-06-15 | 2021-12-31 | 山东高速建材集团有限公司 | High-performance direct-vat asphalt modifier and preparation method thereof |
| CN114316505A (en) * | 2022-01-06 | 2022-04-12 | 广州市市维新材料科技有限公司 | Decolorized cold patch asphalt and preparation method thereof, reactive high-performance colored asphalt cold patch material and preparation method and use method thereof |
| CN115746546B (en) * | 2022-11-15 | 2024-02-20 | 大连海事大学 | Resin-based asphalt pavement shallow groove repair material and preparation method and construction method thereof |
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