CN116063860A - Composite polymer high-viscosity modified asphalt and preparation method thereof - Google Patents
Composite polymer high-viscosity modified asphalt and preparation method thereof Download PDFInfo
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- CN116063860A CN116063860A CN202310222892.9A CN202310222892A CN116063860A CN 116063860 A CN116063860 A CN 116063860A CN 202310222892 A CN202310222892 A CN 202310222892A CN 116063860 A CN116063860 A CN 116063860A
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- asphalt
- modifier
- viscosity
- composite polymer
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- 239000010426 asphalt Substances 0.000 title claims abstract description 81
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 229920000642 polymer Polymers 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 38
- 239000003607 modifier Substances 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 19
- 238000010008 shearing Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 5
- 239000000805 composite resin Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000002199 base oil Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 150000003505 terpenes Chemical class 0.000 claims description 2
- 235000007586 terpenes Nutrition 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
A composite polymer high-viscosity modified asphalt and a preparation method thereof are provided, and the steps are as follows: weighing matrix asphalt, a modifier, tackifying resin, a solubilizer and a stabilizer according to the mass portion; heating and melting the matrix asphalt, continuously stirring the matrix asphalt after the matrix asphalt is melted, sequentially adding a modifier, tackifying resin, a solubilizer and a stabilizer into the matrix asphalt in the stirring process, standing to form composite polymer high-viscosity modified asphalt, and finally detecting the composite polymer high-viscosity modified asphalt to judge whether the technical requirements are met. The preparation process is simple, and the prepared modified asphalt has the characteristics of high-viscosity asphalt and low-temperature high-viscosity rheological characteristics; can realize the standardization of high-viscosity asphalt construction, improve the pavement performance, reduce the energy consumption and be beneficial to environmental protection.
Description
Technical Field
The invention belongs to the technical field of asphalt preparation, and particularly relates to a composite polymer high-viscosity modified asphalt and a preparation method thereof.
Background
In pavement maintenance engineering, the thin-layer overlay is increasingly widely applied. The thin-layer cover surface has the characteristics of quick construction, excellent road performance improvement effect and the like. Among them, the binding material performance in the thin layer cover is particularly important, and the high viscosity modified asphalt is widely used as the binding material in the thin layer cover due to its good high temperature rutting resistance and strong adhesion to aggregates.
At present, a relatively known high-viscosity modified asphalt is Japanese TPS (TAFPACK-Super) modified asphalt, and the technology is mature and the performance is excellent. However, a single TPS modifier is expensive. Many scholars at home and abroad adopt other modifier and TPS compounding modes to reduce the modification cost. However, the modifier and the additive for producing the high-viscosity asphalt are various, but most of the modifier and the additive are large in doping amount, the production process is complex, the working strength of a mill body is increased, the difficulty of temperature control (not lower than 200 ℃) is increased, the requirement on equipment performance is high, and the problem can not be fundamentally solved.
Disclosure of Invention
The technical problems to be solved are as follows: aiming at the problems of complicated steps, troublesome operation and high temperature control (not lower than 200 ℃) in the preparation of the high-viscosity asphalt in the prior art, the invention provides the composite polymer high-viscosity modified asphalt and the preparation method thereof, which have the advantages of easily available raw materials, simple preparation method, low operation temperature and the like.
The technical scheme is as follows: the preparation method of the composite polymer high-viscosity modified asphalt comprises the following steps:
weighing matrix asphalt, a modifier, tackifying resin, a solubilizer and a stabilizer according to the mass portion, wherein the mass portion of each component is as follows: 78.7-93.9 parts of matrix asphalt, 4-8 parts of modifier, 1-7 parts of tackifying resin, 1-6 parts of solubilizer and 0.1-0.3 part of stabilizer;
heating the matrix asphalt to 135 ℃ until the matrix asphalt is molten, placing the molten matrix asphalt into a container, and heating the container to 180 ℃ for 30min;
stirring the matrix asphalt in the heated container, continuously adding the modifier in the stirring process at 180 ℃, and mixing the matrix asphalt and the modifier to form a mixture;
fourthly, shearing the mixture in the sample container at 180 ℃ and a rotating speed of 4000rad/s for 30min, and swelling the modifier in the matrix asphalt;
step five, after the modifier is swelled in the matrix asphalt, maintaining the temperature at 180 ℃, adding tackifying resin while stirring, and shearing for 30min at a high speed of 4000 rad/s;
step six, adding a solubilizer into the mixture treated in the step five, still keeping the temperature at 180 ℃, and shearing at a high speed of 4000rad/s for 30min;
step seven, adding a stabilizer into the mixture treated in the step six, and continuously stirring the mixture in the sample container for not less than 1h at 180 ℃ and 4000 rad/s;
step eight, after stopping stirring, standing the mixture in the sample container for not less than 1h to form the composite polymer high-viscosity modified asphalt;
and step nine, detecting the resin composite modified high-viscosity asphalt in the container, and judging whether various indexes meet technical requirements or not, wherein the requirements are met for later use.
Preferably, in the first step, the following components are mixed according to parts by weight: 91.8 parts of matrix asphalt, 4 parts of modifier, 2 parts of tackifying resin, 2 parts of solubilizer and 0.2 part of stabilizer.
Preferably, the modifier is at least one of SBS and SIS.
Preferably, the tackifying resin is at least one of a terpene resin and a petroleum resin.
Preferably, the solubilizing agent is at least one of solvent oil, mineral base oil and rubber oil.
Preferably, the stabilizer is sulfur.
The composite polymer high-viscosity modified asphalt prepared based on the method.
The technical indexes of the detection of the composite polymer high-viscosity modified asphalt are shown in the following table 1:
table 1 technical index of composite polymer high viscosity modified asphalt
The beneficial effects are that: compared with the prior art, the preparation method of the composite polymer high-viscosity modified asphalt provided by the invention has the advantages that the matrix asphalt is heated and melted, the matrix asphalt is continuously stirred, in the stirring process, the modifier, the tackifying resin, the solubilizer and the stabilizer are sequentially added into the matrix asphalt, then the mixture is stood to form the composite polymer high-viscosity modified asphalt, finally the composite polymer high-viscosity modified asphalt is detected to judge whether the technical requirement is met, the whole preparation process is simple, the operation is convenient, and the prepared modified asphalt has the high-viscosity asphalt characteristics and the rheological characteristics of low temperature high viscosity and high temperature low viscosity; can realize the standardization of high-viscosity asphalt construction, improve the pavement performance, reduce the energy consumption and be beneficial to environmental protection.
Detailed Description
The technical scheme of the invention will be clearly and completely described in the following in connection with the embodiments of the invention. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, which should not be construed as limiting the scope of the present invention.
The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Example 1
In this example, the matrix asphalt model was Shell 70A, purchased from China petrochemical company, inc. of the name of China.
The embodiment provides a preparation method of composite polymer high-viscosity modified asphalt, which comprises the following steps: the raw material components are weighed according to the weight portion ratio of matrix asphalt, modifier, tackifying resin, solubilizer and stabilizer, wherein the weight portion ratio of each component is as follows: 91.8 parts of matrix asphalt, 4 parts of modifier, 2 parts of tackifying resin, 2 parts of solubilizer and 0.2 part of stabilizer. Firstly, placing matrix asphalt in a container, heating to a molten state at 135 ℃, and then heating the container to 180 ℃ for 30min; then, continuously adding a modifier SBS in the stirring process of the matrix asphalt in the heated container at 180 ℃ and mixing the matrix asphalt and the modifier to form a mixture; after shearing the mixture at 180 ℃ for 30min at a high speed of 4000rad/s, causing the SBS to swell in the matrix asphalt; after the modifier is swelled in the matrix asphalt, maintaining the temperature at 180 ℃, adding petroleum resin C5 while stirring, and shearing at a high speed of 4000rad/s for 30min; adding a solubilizer rubber oil into the treated mixture, keeping the temperature at 180 ℃, and shearing at a high speed of 4000rad/s for 30min; adding stabilizer sulfur into the treated mixture, and continuously stirring the mixture in the sample container for not less than 1h at 180 ℃ and 4000 rad/s; after stopping stirring, standing the mixture in the sample container for not less than 1h to form the composite polymer high-viscosity modified asphalt; and detecting the resin composite modified high-viscosity asphalt in the sampling container, and judging whether various indexes meet technical requirements or not, wherein the requirements are met, and the resin composite modified high-viscosity asphalt is ready for use.
Example 2
The difference with the embodiment 1 is that the components are prepared from the following components in parts by weight: 78.7 parts of matrix asphalt, 8 parts of modifier, 7 parts of tackifying resin, 6 parts of solubilizer and 0.3 part of stabilizer.
Example 3
The difference with the embodiment 1 is that the components are prepared from the following components in parts by weight: 93.9 parts of matrix asphalt, 4 parts of modifier, 1 part of tackifying resin, 1 part of solubilizer and 0.1 part of stabilizer.
The results of the relevant technical indexes obtained by the detection in the above examples 1-3 are shown in Table 2.
Table 2 results of the related technical indicators obtained by the detection
As can be seen from the table, the products prepared in the examples 1-3 of the invention all have high-viscosity asphalt characteristics, have low-temperature high-viscosity high-temperature low-viscosity rheological characteristics, can realize the standardization of high-viscosity asphalt construction, and can ensure good construction performance on the premise of good physical properties.
Claims (7)
1. The preparation method of the composite polymer high-viscosity modified asphalt is characterized by comprising the following steps:
weighing matrix asphalt, a modifier, tackifying resin, a solubilizer and a stabilizer according to the mass portion, wherein the mass portion of each component is as follows: 78.7-93.9 parts of matrix asphalt, 4-8 parts of modifier, 1-7 parts of tackifying resin, 1-6 parts of solubilizer and 0.1-0.3 part of stabilizer;
heating the matrix asphalt to 135 ℃ until the matrix asphalt is molten, placing the molten matrix asphalt into a container, and heating the container to 180 ℃ for 30min;
stirring the matrix asphalt in the heated container, continuously adding the modifier in the stirring process at 180 ℃, and mixing the matrix asphalt and the modifier to form a mixture;
fourthly, shearing the mixture in the sample container at a high speed of 4000rad/s for 30min at 180 ℃, and swelling the modifier in the matrix asphalt;
step five, after the modifier is swelled in the matrix asphalt, adding tackifying resin while stirring at 180 ℃ and shearing for 30min at a high speed of 4000 rad/s;
step six, adding a solubilizer into the mixture treated in the step five, and shearing for 30min at a high speed at a rotating speed of 4000rad/s at 180 ℃;
step seven, adding a stabilizer into the mixture treated in the step six, and continuously stirring the mixture in the sample container for not less than 1h under the preparation conditions of 180 ℃ and 4000 rad/s;
step eight, after stopping stirring, standing the mixture in the sample container for not less than 1h to form the composite polymer high-viscosity modified asphalt;
and step nine, detecting the resin composite modified high-viscosity asphalt in the container, and judging whether various indexes meet technical requirements or not, wherein the requirements are met for later use.
2. The preparation method of the composite polymer high-viscosity modified asphalt according to claim 1, wherein the mass portion ratio of each component in the first step is as follows: 91.8 parts of matrix asphalt, 4 parts of modifier, 2 parts of tackifying resin, 2 parts of solubilizer and 0.2 part of stabilizer.
3. The method for preparing a composite polymer high-viscosity modified asphalt according to claim 1, wherein the modifier is at least one of SBS and SIS.
4. The method for preparing a composite polymer high-viscosity modified asphalt according to claim 1, wherein the tackifying resin is at least one of terpene resin and petroleum resin.
5. The method for preparing a composite polymer high-viscosity modified asphalt according to claim 1, wherein the solubilizing agent is at least one of solvent oil, mineral base oil and rubber oil.
6. The method for preparing a composite polymer high-viscosity modified asphalt according to claim 1, wherein the stabilizer is sulfur.
7. A composite polymeric high viscosity modified asphalt prepared based on the method of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211577368 | 2022-12-09 | ||
| CN2022115773685 | 2022-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116063860A true CN116063860A (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310222892.9A Pending CN116063860A (en) | 2022-12-09 | 2023-03-09 | Composite polymer high-viscosity modified asphalt and preparation method thereof |
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| CN (1) | CN116063860A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107722650A (en) * | 2017-09-25 | 2018-02-23 | 长安大学 | A kind of environmentally friendly high viscosity modified pitch and preparation method thereof |
| CN109852085A (en) * | 2019-02-14 | 2019-06-07 | 河北长大交通科技有限公司 | A kind of high adhered modification pitch and preparation method thereof |
| CN110041720A (en) * | 2019-05-07 | 2019-07-23 | 无锡市城市道桥科技有限公司 | A kind of high adhered modification asphalt material and preparation method thereof |
| CN111978751A (en) * | 2020-09-09 | 2020-11-24 | 重庆市智翔铺道技术工程有限公司 | Ultrahigh-viscosity modified asphalt and preparation method thereof |
| CN112500711A (en) * | 2020-12-02 | 2021-03-16 | 广东华路交通科技有限公司 | High-viscoelasticity modified asphalt and preparation method thereof |
| CN113004710A (en) * | 2021-04-02 | 2021-06-22 | 天津市凯曼德工程技术有限公司 | Warm-mixing high-viscosity asphalt modifier and preparation method and application thereof |
| CN113667314A (en) * | 2021-08-17 | 2021-11-19 | 浙江交通资源投资有限公司沥青科技分公司 | Special anti-aging high-viscosity asphalt for maintenance and preparation method thereof |
-
2023
- 2023-03-09 CN CN202310222892.9A patent/CN116063860A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107722650A (en) * | 2017-09-25 | 2018-02-23 | 长安大学 | A kind of environmentally friendly high viscosity modified pitch and preparation method thereof |
| CN109852085A (en) * | 2019-02-14 | 2019-06-07 | 河北长大交通科技有限公司 | A kind of high adhered modification pitch and preparation method thereof |
| CN110041720A (en) * | 2019-05-07 | 2019-07-23 | 无锡市城市道桥科技有限公司 | A kind of high adhered modification asphalt material and preparation method thereof |
| CN111978751A (en) * | 2020-09-09 | 2020-11-24 | 重庆市智翔铺道技术工程有限公司 | Ultrahigh-viscosity modified asphalt and preparation method thereof |
| CN112500711A (en) * | 2020-12-02 | 2021-03-16 | 广东华路交通科技有限公司 | High-viscoelasticity modified asphalt and preparation method thereof |
| CN113004710A (en) * | 2021-04-02 | 2021-06-22 | 天津市凯曼德工程技术有限公司 | Warm-mixing high-viscosity asphalt modifier and preparation method and application thereof |
| CN113667314A (en) * | 2021-08-17 | 2021-11-19 | 浙江交通资源投资有限公司沥青科技分公司 | Special anti-aging high-viscosity asphalt for maintenance and preparation method thereof |
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