Anti-rutting asphalt and preparation method thereof

Abstract

The invention is suitable for the technical field of asphalt, and provides anti-rut asphalt and a preparation method thereof, and the anti-rut asphalt comprises the following components in parts by weight: 92-116 parts of asphalt, 7-15 parts of polymerized styrene-butadiene rubber, 2-4 parts of an accelerator, 5-9 parts of long glass fiber, 8-14 parts of a filler, 4.5-10.5 parts of epoxy resin, 1.5-3.5 parts of a weather-resistant agent, 3-7 parts of polyurethane resin, and 5.5-13.5 parts of a tetraamino metal phthalocyanine MOFs material. Preferably, the anti-rutting asphalt also comprises the following components: petroleum resin and composite titanium dioxide. The strength, toughness and other mechanical properties of an asphalt pavement can be remarkably improved through the styrene-butadiene rubber, the long glass fiber, the epoxy resin and the polyurethane resin, the strength and stability of the asphalt are further improved through the pi-pi structure of the tetramino metal phthalocyanine MOFs material, and the mechanical properties and the self-repairing capacity of the asphalt are greatly improved; therefore, the anti-rutting effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt, in particular to an anti-rutting asphalt and a preparation method thereof. Background Art

[0002] Bitumen is a black or dark brown viscous substance that is usually extracted from petroleum or natural asphalt sources. It is usually solid or semi-solid at room temperature, but can soften or liquefy at high temperatures. Bitumen is mainly composed of hydrocarbons (such as hydrocarbons) and contains small amounts of elements such as sulfur, nitrogen and oxygen. It has high adhesion and water resistance, so it is widely used in road construction, roof waterproofing, and other fields that require waterproofing and durability.

[0003] As a common pavement material, asphalt is widely used in the construction of highways, airport runways, etc. due to its excellent adhesion and water resistance. Asphalt as a pavement material, after long-term use, due to repeated rolling of vehicles or high temperature, the asphalt pavement will deform, sink or have groove-like marks, that is, rutting.

[0004] Rutting can cause the road surface to be uneven, making it easy for vehicles to slip while driving, increasing the risk of traffic accidents; rutting not only affects the stability of the vehicle, but also reduces driving comfort, especially on rainy days, when water accumulation in the rutting can aggravate the hydroplaning phenomenon; long-term rutting can damage the road surface structure, leading to cracks, potholes and other forms of road surface diseases, affecting the service life of the road.

[0005] In view of the above-mentioned influence of rutting, it is very important to develop an anti-rutting and highly durable asphalt material. To this end, the present invention provides an anti-rutting asphalt and a preparation method thereof. Summary of the invention

[0006] The purpose of the present invention is to provide an anti-rutting asphalt and a preparation method thereof, so as to solve the problem in the prior art that asphalt pavement will produce rutting after long-term use, thereby causing some adverse effects and affecting the subsequent use of the pavement.

[0007] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides an anti-rutting asphalt, which comprises the following components and contents in parts by weight: 92-116 parts of asphalt, 7-15 parts of polystyrene-butadiene rubber, 2-4 parts of accelerator, 5-9 parts of long glass fiber, 8-14 parts of filler, 4.5-10.5 parts of epoxy resin, 1.5-3.5 parts of weathering agent, 3-7 parts of polyurethane resin, and 5.5-13.5 parts of tetraaminometallicphthalocyanine MOFs material.

[0008] Preferably, the anti-rutting asphalt further comprises petroleum resin and composite titanium dioxide.

[0009] Preferably, the weight proportions of the petroleum resin and the composite titanium dioxide are: 2 to 5 parts of the petroleum resin and 3 to 10 parts of the composite titanium dioxide.

[0010] Preferably, the content ratio of the epoxy resin to the polyurethane resin is 3:2.

[0011] Preferably, the accelerating setting agent is one or more of calcium chloride, calcium sulfate, aluminum chloride or xylene.

[0012] Preferably, the filler is one or more of hollow glass microspheres, mica powder, calcium carbonate, kaolin and talc.

[0013] Preferably, the weathering agent is one or more of dibutylphenol, bentonite or montmorillonite.

[0014] Preferably, the tetraaminometallicphthalocyanine MOFs material is one or more of a tetraaminocopperphthalocyanine MOFs material or a tetraaminocobaltphthalocyanine MOFs material.

[0015] The second aspect of the present invention provides a method for preparing the anti-rutting asphalt according to the first aspect of the present invention, comprising the following steps: Step (1), polycondensing tetraaminometallic phthalocyanine and terephthalaldehyde in proportion to obtain tetraaminometallic phthalocyanine MOFs material; Step (2), mixing the tetraaminometallicphthalocyanine MOFs material with the remaining ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt.

[0016] The present invention has at least the following beneficial effects: The present invention provides an anti-rutting asphalt and a preparation method thereof, which can significantly improve the strength, toughness and other mechanical properties of asphalt pavement through polystyrene-butadiene rubber, long glass fiber, epoxy resin and polyurethane resin, and further improve the strength and stability of asphalt through the π-π structure of tetraaminometallicphthalocyanine MOFs material, greatly improving the mechanical properties and self-repairing ability of asphalt, thereby improving the anti-rutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the reaction route of tetraaminocopper phthalocyanine MOFs material; Figure 2 This is the reaction route of tetraaminocobalt phthalocyanine MOFs material. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention provides an anti-rutting asphalt, which comprises the following components and contents in parts by weight: 92-116 parts of asphalt, 7-15 parts of polystyrene-butadiene rubber, 2-4 parts of accelerator, 5-9 parts of long glass fiber, 8-14 parts of filler, 4.5-10.5 parts of epoxy resin, 1.5-3.5 parts of weathering agent, 3-7 parts of polyurethane resin, and 5.5-13.5 parts of tetraaminometallicphthalocyanine MOFs material.

[0020] Furthermore, the anti-rutting asphalt also includes petroleum resin and composite titanium dioxide; the weight proportions of the petroleum resin and the composite titanium dioxide are: 2 to 5 parts of the petroleum resin and 3 to 10 parts of the composite titanium dioxide.

[0021] Furthermore, the content ratio of the epoxy resin to the polyurethane resin is 3:2.

[0022] Furthermore, the accelerating setting agent is one or more of calcium chloride, calcium sulfate, aluminum chloride or xylene; the filler is one or more of hollow glass microspheres, mica powder, calcium carbonate, kaolin and talc; and the weathering agent is one or more of dibutylphenol, bentonite or montmorillonite.

[0023] Furthermore, the tetraaminometallicphthalocyanine MOFs material is one or more of tetraaminocopperphthalocyanine MOFs material or tetraaminocobaltphthalocyanine MOFs material.

[0024] The above method for preparing the anti-rutting asphalt comprises the following steps: Step (1), polycondensing tetraaminometallic phthalocyanine and terephthalaldehyde in proportion to obtain tetraaminometallic phthalocyanine MOFs material; Step (2), mixing the tetraaminometallicphthalocyanine MOFs material with the remaining ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt.

[0025] Based on the above technical solution, the present invention provides the following partial embodiments and comparative examples: Example

[0026] An anti-rutting asphalt and a preparation method thereof, wherein the anti-rutting asphalt comprises the following components and contents in parts by weight: 92 parts of asphalt, 7 parts of polystyrene-butadiene rubber, 2 parts of accelerating agent, 5 parts of long glass fiber, 8 parts of filler, 4.5 parts of epoxy resin, 1.5 parts of weathering agent, 3 parts of polyurethane resin, and 5.5 parts of tetraaminometallicphthalocyanine MOFs material.

[0027] Among them, the accelerating agent is calcium chloride; the filler is hollow glass microspheres; and the weathering agent is dibutylphenol.

[0028] Among them, the tetraaminometallicphthalocyanine MOFs material is tetraaminocopperphthalocyanine MOFs material.

[0029] The preparation method of the above anti-rutting asphalt is as follows: S1, tetraamino copper phthalocyanine and terephthalaldehyde were mixed in a molar ratio of 1:2, and DMF was used as a solvent, and refluxed at 120°C for 72 hours. After the reaction, it was cooled to room temperature, filtered, washed with tetrahydrofuran and acetone, and dried to obtain tetraamino copper phthalocyanine MOFs material. The reaction route is as follows: Figure 1 As shown; S2, mixing the tetraaminocopper phthalocyanine MOFs material with other ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt. Example

[0030] An anti-rutting asphalt and a preparation method thereof, wherein the anti-rutting asphalt comprises the following components and contents in parts by weight: 95 parts of asphalt, 8 parts of polystyrene-butadiene rubber, 2.5 parts of accelerating agent, 6 parts of long glass fiber, 9 parts of filler, 6 parts of epoxy resin, 2 parts of weathering agent, 4 parts of polyurethane resin, and 6.5 parts of tetraaminometallic phthalocyanine MOFs material.

[0031] Among them, the accelerating agent is calcium sulfate; the filler is mica powder; and the weathering agent is bentonite.

[0032] Among them, the tetraaminometallicphthalocyanine MOFs material is tetraaminocobaltphthalocyanine MOFs material.

[0033] The preparation method of the above anti-rutting asphalt is as follows: S1, tetraaminocobalt phthalocyanine and terephthalaldehyde were mixed in a molar ratio of 1:2, and DMF was used as a solvent, and refluxed at 120°C for 72 hours. After the reaction, it was cooled to room temperature, filtered, washed with tetrahydrofuran and acetone, and dried to obtain tetraaminocobalt phthalocyanine MOFs material. The reaction route is as follows: Figure 2 As shown; S2, mixing the tetraaminocobalt phthalocyanine MOFs material with other ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt. Example

[0034] An anti-rutting asphalt and a preparation method thereof, wherein the anti-rutting asphalt comprises the following components and contents in parts by weight: 98 parts of asphalt, 9 parts of polystyrene-butadiene rubber, 3 parts of accelerator, 7 parts of long glass fiber, 10 parts of filler, 7.2 parts of epoxy resin, 2.5 parts of weathering agent, 4.8 parts of polyurethane resin, 7 parts of tetraaminometallicphthalocyanine MOFs material, 2 parts of petroleum resin, and 3 parts of composite titanium dioxide.

[0035] Among them, the accelerating agent is aluminum chloride; the filler is calcium carbonate; and the weathering agent is montmorillonite.

[0036] Among them, the tetraaminometallicphthalocyanine MOFs material is tetraaminocopperphthalocyanine MOFs material.

[0037] The preparation method of the above anti-rutting asphalt is as follows: S1, tetraaminocopper phthalocyanine and terephthalaldehyde were mixed in a molar ratio of 1:2, DMF was used as solvent, and refluxed at 120°C for 72 hours. After the reaction, it was cooled to room temperature, filtered, washed with tetrahydrofuran and acetone, and dried to obtain tetraaminocopper phthalocyanine MOFs material; S2, mixing the tetraaminocopper phthalocyanine MOFs material with other ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt. Example

[0038] An anti-rutting asphalt and a preparation method thereof, wherein the anti-rutting asphalt comprises the following components and contents in parts by weight: 110 parts of asphalt, 12 parts of polystyrene-butadiene rubber, 3.6 parts of accelerating agent, 8 parts of long glass fiber, 11 parts of filler, 9 parts of epoxy resin, 3 parts of weathering agent, 6 parts of polyurethane resin, 10 parts of tetraaminometallicphthalocyanine MOFs material, 4 parts of petroleum resin, and 7 parts of composite titanium dioxide.

[0039] Among them, the accelerating setting agent is xylene; the filler is kaolin; and the weathering agent is bentonite.

[0040] Among them, the tetraaminometallicphthalocyanine MOFs material is tetraaminocobaltphthalocyanine MOFs material.

[0041] The preparation method of the above anti-rutting asphalt is as follows: S1, tetraaminocobalt phthalocyanine and terephthalaldehyde were mixed in a molar ratio of 1:2, and DMF was used as a solvent, and refluxed at 120°C for 72 hours. After the reaction, it was cooled to room temperature, filtered, washed with tetrahydrofuran and acetone, and dried to obtain tetraaminocobalt phthalocyanine MOFs material; S2, mixing the tetraaminocobalt phthalocyanine MOFs material with other ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt. Example

[0042] An anti-rutting asphalt and a preparation method thereof, wherein the anti-rutting asphalt comprises the following components and contents in parts by weight: 116 parts of asphalt, 15 parts of polystyrene-butadiene rubber, 4 parts of accelerator, 9 parts of long glass fiber, 14 parts of filler, 10.5 parts of epoxy resin, 3.5 parts of weathering agent, 7 parts of polyurethane resin, 13.5 parts of tetraaminometallicphthalocyanine MOFs material, 5 parts of petroleum resin, and 10 parts of composite titanium dioxide.

[0043] Among them, the accelerating agent is aluminum chloride; the filler is talcum powder; and the weathering agent is montmorillonite.

[0044] Among them, the tetraaminometallicphthalocyanine MOFs material is tetraaminocobaltphthalocyanine MOFs material.

[0045] The preparation method of the above anti-rutting asphalt is as follows: S1, tetraaminocobalt phthalocyanine and terephthalaldehyde were mixed in a molar ratio of 1:2, and DMF was used as a solvent, and refluxed at 120°C for 72 hours. After the reaction, it was cooled to room temperature, filtered, washed with tetrahydrofuran and acetone, and dried to obtain tetraaminocobalt phthalocyanine MOFs material; S2, mixing the tetraaminocobalt phthalocyanine MOFs material with other ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt.

[0046] Comparative Example 1 Compared with Example 1, the tetraaminometallicphthalocyanine MOFs material is not included, and the remaining components and steps are the same.

[0047] Comparative Example 2 Compared with Example 2, the tetraaminometallicphthalocyanine MOFs material is not included, and the remaining components and steps are the same.

[0048] Comparative Example 3 Compared with Example 3, the tetraaminometallicphthalocyanine MOFs material is not included, and the remaining components and steps are the same.

[0049] Comparative Example 4 Compared with Example 4, the tetraaminometallicphthalocyanine MOFs material is not included, and the remaining components and steps are the same.

[0050] According to "Research Progress on Self-repairing Ability of Asphalt Materials" (Zhu Yuefeng, Zhang Hongliang), asphalt has a certain self-repairing ability, and the self-repairing ability of asphalt can be improved by adding external components. The improvement of asphalt anti-rutting in the present invention is mainly through improving the strength, toughness and elasticity of asphalt, thereby improving the self-repairing ability. Through polystyrene-butadiene rubber, long glass fiber, epoxy resin, polyurethane resin, the strength, toughness and other mechanical properties of asphalt pavement can be significantly improved, and the π-π structure of tetraaminometallicphthalocyanine MOFs material can be used to further improve the strength and stability of asphalt.

[0051] The products prepared in the above examples and comparative examples were subjected to relevant performance comparison tests, and the results are as follows: Rutting test dynamic stability DS (times / mm) (0.7MPa, 60℃) Residual strength ratio of freeze-thaw splitting test (%, -18℃) Example 1 9640 97.3 Comparative Example 1 8635 92.6 Example 2 9819 97.9 Comparative Example 2 8726 93.1 Example 3 11513 98.3 Comparative Example 3 9183 94.0 Example 4 11645 98.5 Comparative Example 4 9212 93.9 In summary, the anti-rutting asphalt provided by the present invention has good anti-rutting performance.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-rutting asphalt, characterized in that: The anti-rutting asphalt comprises the following components and contents in parts by weight: 92-116 parts of asphalt, 7-15 parts of polystyrene-butadiene rubber, 2-4 parts of accelerator, 5-9 parts of long glass fiber, 8-14 parts of filler, 4.5-10.5 parts of epoxy resin, 1.5-3.5 parts of weathering agent, 3-7 parts of polyurethane resin, and 5.5-13.5 parts of tetraaminometallicphthalocyanine MOFs material.

2. The anti-rutting asphalt according to claim 1, characterized in that: The anti-rutting asphalt also comprises petroleum resin and composite titanium dioxide.

3. The anti-rutting asphalt according to claim 2, characterized in that: The weight proportions of the petroleum resin and the composite titanium dioxide are: 2 to 5 parts of the petroleum resin and 3 to 10 parts of the composite titanium dioxide.

4. The anti-rutting asphalt according to claim 1, characterized in that: The content ratio of the epoxy resin to the polyurethane resin is 3:

2.

5. The anti-rutting asphalt according to claim 1, characterized in that: The accelerating setting agent is one or more of calcium chloride, calcium sulfate, aluminum chloride or xylene.

6. The anti-rutting asphalt according to claim 1, characterized in that: The filler is one or more of hollow glass microspheres, mica powder, calcium carbonate, kaolin and talc.

7. The anti-rutting asphalt according to claim 1, characterized in that: The weathering agent is one or more of dibutylphenol, bentonite or montmorillonite.

8. The anti-rutting asphalt according to claim 1, characterized in that: The tetraaminometallicphthalocyanine MOFs material is one or more of a tetraaminocopperphthalocyanine MOFs material and a tetraaminocobaltphthalocyanine MOFs material.

9. The method for preparing the anti-rutting asphalt according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step (1), polycondensing tetraaminometallic phthalocyanine and terephthalaldehyde in proportion to obtain tetraaminometallic phthalocyanine MOFs material; Step (2), mixing the tetraaminometallicphthalocyanine MOFs material with the remaining ingredients in proportion, adding an appropriate amount of water, stirring, and preparing an anti-rutting asphalt.

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