CN108485287B - Ultraviolet aging resistant modified asphalt and preparation method thereof - Google Patents
Ultraviolet aging resistant modified asphalt and preparation method thereof Download PDFInfo
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- CN108485287B CN108485287B CN201810135867.6A CN201810135867A CN108485287B CN 108485287 B CN108485287 B CN 108485287B CN 201810135867 A CN201810135867 A CN 201810135867A CN 108485287 B CN108485287 B CN 108485287B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2395/00—Bituminous materials, e.g. asphalt, tar or pitch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
Abstract
The invention relates to an anti-ultraviolet aging modified asphalt, which comprises the following components in parts by weight: 100 parts of matrix asphalt, 5-10 parts of SBS modifier, 1-3 parts of foaming agent, 3-5 parts of defoaming agent, 0.05-0.1 part of stabilizer, 1-5 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 10-20 parts of benzotriazole, 10-20 parts of maleic anhydride and 10-20 parts of titanium dioxide; according to the invention, N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole and titanium dioxide are added, and the three are organically combined through maleic anhydride to form a dense protective net, so that damage caused by ultraviolet rays can be effectively prevented; the modified asphalt is foamed by adding the foaming agent, the internal structure of the modified asphalt becomes a honeycomb type temporarily, the specific surface area is larger, the structures among the components are more uniform and compact, and the ultraviolet resistance of the asphalt is greatly improved; and a defoaming agent is added for processing, and the formed connecting structure is extruded, so that the structure is denser, and ultraviolet rays are difficult to penetrate.
Description
Technical Field
The invention relates to the field of asphalt modification, and particularly relates to ultraviolet aging resistant modified asphalt.
Background
Under the action of the modifier, the high-temperature and low-temperature performances of the matrix asphalt are greatly improved, but no good method is available for the problem of ultraviolet aging caused by ultraviolet rays, the ultraviolet aging causes the surface layer of the asphalt to be hardened, the brittleness is increased, the viscosity is reduced, the adhesiveness between the asphalt is deteriorated, the aggregate on the pavement is caused to fall off, even the pits are uneven, and after the brittleness is increased, the pavement is easy to crack, the internal structure is further damaged, and the performance of the asphalt pavement is seriously influenced.
Disclosure of Invention
The invention aims to provide ultraviolet aging resistant modified asphalt and a preparation method thereof aiming at the defects in the prior art.
The invention is realized by the following technical scheme:
the ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 5-10 parts of SBS modifier, 1-3 parts of foaming agent, 3-5 parts of defoaming agent, 0.05-0.1 part of stabilizer, 1-5 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 10-20 parts of benzotriazole, 10-20 parts of maleic anhydride and 10-20 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
The preparation method of the ultraviolet aging resistant modified asphalt is characterized by comprising the following steps: the method comprises the following steps:
(1) mixing and stirring N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole, titanium dioxide and 1/2 maleic anhydride at 50-60 ℃ to obtain a mixed solution for later use;
(2) heating the matrix asphalt to 180-190 ℃;
(3) stirring, adding SBS modifier, heating to 195-200 deg.C, and stirring for 20-30 min;
(4) adding a foaming agent, controlling the dropping speed, uniformly dropping, adding the mixture obtained in the step (1) and the residual maleic anhydride into the matrix asphalt within 2 minutes, and continuously stirring for 20-30 minutes after the dropping is finished;
(5) controlling the temperature at 150 ℃ and 160 ℃, adding a stabilizer and a defoaming agent, and stirring for 30-40 min.
The invention has the beneficial effects that: the addition of N-phenyl-N' -isopropyl-p-phenylenediamine has a strong anti-aging effect on asphalt, benzotriazole can effectively absorb ultraviolet rays, titanium dioxide can effectively reflect ultraviolet rays, and the benzotriazole, titanium dioxide and the titanium dioxide are organically combined through maleic anhydride to form a dense protective net, so that damage caused by ultraviolet rays can be effectively prevented; the modified asphalt is foamed by adding the foaming agent, the internal structure of the modified asphalt becomes a honeycomb type temporarily, benzotriazole, maleic anhydride and titanium dioxide are combined and then distributed in the honeycomb type structure, the structure is three-dimensional, the specific surface area is larger, the contact area of the asphalt and the asphalt is larger, the structure between the components is more uniform and compact, and the ultraviolet resistance of the asphalt is greatly improved; and a defoaming agent is added for processing, and the formed connecting structure is extruded, so that the structure is denser, and ultraviolet rays are difficult to penetrate.
Detailed Description
The present invention is further described below with reference to specific examples so that those skilled in the art may better understand the present invention, but the present invention is not limited thereto.
Example 1
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 5 parts of SBS modifier, 1 part of foaming agent, 3 parts of defoaming agent, 0.05 part of stabilizer, 1 part of N-phenyl-N' -isopropyl-p-phenylenediamine, 10 parts of benzotriazole, 10 parts of maleic anhydride and 10 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 2
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 2 parts of foaming agent, 4 parts of defoaming agent, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 15 parts of benzotriazole, 15 parts of maleic anhydride and 15 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 3
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 10 parts of SBS modifier, 3 parts of foaming agent, 5 parts of defoaming agent, 0.1 part of stabilizer, 5 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 20 parts of benzotriazole, 20 parts of maleic anhydride and 20 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 4
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 2 parts of foaming agent, 4 parts of defoaming agent, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine and 15 parts of benzotriazole.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 5
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 2 parts of foaming agent, 4 parts of defoaming agent, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine and 15 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 6
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 2 parts of foaming agent, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 15 parts of benzotriazole, 15 parts of maleic anhydride and 15 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 7
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 15 parts of benzotriazole, 15 parts of maleic anhydride and 15 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
Example 8
The ultraviolet aging resistant modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 8 parts of SBS modifier, 2 parts of foaming agent, 4 parts of defoaming agent, 0.1 part of stabilizer, 3 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 15 parts of benzotriazole and 15 parts of titanium dioxide.
The foaming agent is sodium bicarbonate.
The stabilizer is sulfur.
The defoaming agent is polyether silicone oil.
The above examples 1-8 were prepared by the following method,
(1) mixing and stirring N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole, titanium dioxide and 1/2 maleic anhydride at 50-60 ℃ to obtain a mixed solution for later use;
(2) heating the matrix asphalt to 180-190 ℃;
(3) stirring, adding SBS modifier, heating to 195-200 deg.C, and stirring for 20-30 min;
(4) adding a foaming agent, controlling the dropping speed, uniformly dropping, adding the mixture obtained in the step (1) and the residual maleic anhydride into the matrix asphalt within 2 minutes, and continuously stirring for 20-30 minutes after the dropping is finished;
(5) controlling the temperature at 150 ℃ and 160 ℃, adding a stabilizer and a defoaming agent, and stirring for 30-40 min.
Example 9
The components are the same as example 2, and the preparation method comprises the following steps:
(1) mixing and stirring N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole, titanium dioxide and maleic anhydride at 50-60 ℃ to obtain a mixed solution for later use;
(2) heating the matrix asphalt to 180-190 ℃;
(3) stirring, adding SBS modifier, heating to 195-200 deg.C, and stirring for 20-30 min;
(4) adding a foaming agent, controlling the dropping speed, dropping at a uniform speed, adding the mixed solution obtained in the step (1) into the matrix asphalt within 2 minutes, and continuously stirring for 20-30min after the dropping is finished;
(5) controlling the temperature at 150 ℃ and 160 ℃, adding a stabilizer and a defoaming agent, and stirring for 30-40 min.
Example 10
(1) Mixing and stirring N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole, titanium dioxide and 1/2 maleic anhydride at 50-60 ℃ to obtain a mixed solution for later use;
(2) heating the matrix asphalt to 180-190 ℃;
(3) stirring, adding SBS modifier, heating to 195-200 deg.C, and stirring for 20-30 min;
(4) adding all foaming agents at one time, adding the mixed solution obtained in the step (1) and the residual maleic anhydride into the matrix asphalt, and continuously stirring for 20-30min after the dripping is finished;
(5) controlling the temperature at 150 ℃ and 160 ℃, adding a stabilizer and a defoaming agent, and stirring for 30-40 min.
TABLE 1 examples 1-9 asphalt Performance indices
Claims (4)
1. An anti-ultraviolet aging modified asphalt is characterized in that: the composition comprises the following components in parts by weight: 100 parts of matrix asphalt, 5-10 parts of SBS modifier, 1-3 parts of foaming agent, 3-5 parts of defoaming agent, 0.05-0.1 part of stabilizer, 1-5 parts of N-phenyl-N' -isopropyl-p-phenylenediamine, 10-20 parts of benzotriazole, 10-20 parts of maleic anhydride and 10-20 parts of titanium dioxide;
the preparation method of the ultraviolet aging resistant modified asphalt comprises the following steps: (1) mixing and stirring N-phenyl-N' -isopropyl-p-phenylenediamine, benzotriazole, titanium dioxide and 1/2 maleic anhydride at 50-60 ℃ to obtain a mixed solution for later use; (2) heating the matrix asphalt to 180-190 ℃; (3) stirring, adding SBS modifier, heating to 195-200 deg.C, and stirring for 20-30 min; (4) adding a foaming agent, controlling the dropping speed, uniformly dropping, adding the mixture obtained in the step (1) and the residual maleic anhydride into the matrix asphalt within 2 minutes, and continuously stirring for 20-30 minutes after the dropping is finished; (5) controlling the temperature at 150 ℃ and 160 ℃, adding a stabilizer and a defoaming agent, and stirring for 30-40 min.
2. The ultraviolet aging resistant modified asphalt of claim 1, which is characterized in that: the foaming agent is sodium bicarbonate.
3. The ultraviolet aging resistant modified asphalt of claim 1, which is characterized in that: the stabilizer is sulfur.
4. The ultraviolet aging resistant modified asphalt of claim 1, which is characterized in that: the defoaming agent is polyether silicone oil.
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| CN201810135867.6A CN108485287B (en) | 2018-02-09 | 2018-02-09 | Ultraviolet aging resistant modified asphalt and preparation method thereof |
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| CN201810135867.6A CN108485287B (en) | 2018-02-09 | 2018-02-09 | Ultraviolet aging resistant modified asphalt and preparation method thereof |
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| CN108485287B true CN108485287B (en) | 2020-10-23 |
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| CN113754989B (en) * | 2021-10-26 | 2023-06-06 | 广东唯粒新材料科技有限公司 | TPEE material for making pen cap |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613939A (en) * | 2004-09-16 | 2005-05-11 | 王耀波 | Waterproof sealing compound for asphalt road surface, production and applied constructing process |
| CN102504556A (en) * | 2011-11-22 | 2012-06-20 | 山东泰德星火新能源有限公司 | High-grade road asphalt prepared from coal tar pitch |
| CN103146207A (en) * | 2013-03-19 | 2013-06-12 | 湖北国创高新材料股份有限公司 | Ultraviolet aging-resistant compound modified asphalt and preparation method thereof |
| CN104710804A (en) * | 2015-03-17 | 2015-06-17 | 中国海洋石油总公司 | SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
| CN105504843A (en) * | 2016-01-12 | 2016-04-20 | 南昌工程学院 | Road asphalt pavement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665899B (en) * | 2013-12-06 | 2015-12-02 | 合肥工业大学 | A kind of modifying asphalt base embedding agent and preparation method utilizing waste foam |
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- 2018-02-09 CN CN201810135867.6A patent/CN108485287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613939A (en) * | 2004-09-16 | 2005-05-11 | 王耀波 | Waterproof sealing compound for asphalt road surface, production and applied constructing process |
| CN102504556A (en) * | 2011-11-22 | 2012-06-20 | 山东泰德星火新能源有限公司 | High-grade road asphalt prepared from coal tar pitch |
| CN103146207A (en) * | 2013-03-19 | 2013-06-12 | 湖北国创高新材料股份有限公司 | Ultraviolet aging-resistant compound modified asphalt and preparation method thereof |
| CN104710804A (en) * | 2015-03-17 | 2015-06-17 | 中国海洋石油总公司 | SBS (styrene butadiene styrene) modified asphalt and preparation method thereof |
| CN105504843A (en) * | 2016-01-12 | 2016-04-20 | 南昌工程学院 | Road asphalt pavement |
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