CN114044882A - Flexible curing agent and preparation method and application thereof - Google Patents
Flexible curing agent and preparation method and application thereof Download PDFInfo
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- CN114044882A CN114044882A CN202111259845.9A CN202111259845A CN114044882A CN 114044882 A CN114044882 A CN 114044882A CN 202111259845 A CN202111259845 A CN 202111259845A CN 114044882 A CN114044882 A CN 114044882A
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- asphalt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/64—Amino alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/44—Amides
- C08G59/46—Amides together with other curing agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
- C08G59/623—Aminophenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- 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
Abstract
The invention relates to the field of asphalt materials, and particularly relates to a flexible curing agent and a preparation method and application thereof. The invention discloses a flexible curing agent comprising a thermal blend of a toughening agent and a linear aliphatic amine. The flexible curing agent can effectively solve the problem that the viscosity of the epoxy asphalt is increased too fast during high-temperature mixing, the time required for the viscosity of the epoxy asphalt to reach 1000m Pa.s during high-temperature mixing is up to 180min at most, and the elongation at break and the tensile strength of a cured product are also obviously superior to those of the cured product of the curing agent without the toughening agent. The flexible curing agent has good compatibility with asphalt, good uniform dispersibility in the asphalt after curing and high strength.
Description
Technical Field
The invention relates to the field of asphalt materials, and particularly relates to a flexible curing agent and a preparation method and application thereof.
Background
The epoxy asphalt is a mixture obtained by performing complex chemical modification on epoxy resin, a curing agent and matrix asphalt, and can be used for engineering construction of roads, bridges and the like. According to the mixing temperature, the epoxy asphalt can be classified into three categories: cold-mix type, warm-mix type (115-125 ℃) and hot-mix type (160-180 ℃). Wherein the cold mixing type is mainly suitable for rapid repair. Although the warm-mix epoxy asphalt has a lower mixing temperature than the hot-mix epoxy asphalt, it has strict requirements for construction equipment and construction environment. The asphalt viscosity is obviously reduced during hot mixing, the asphalt can be quickly and effectively uniformly stirred when being mixed with other substances, and meanwhile, the moisture in the environment and the added substances can be quickly evaporated at the temperature, so that the influence of water vapor is avoided when the materials are paved, and the construction difficulty is reduced.
At present, the research on warm mixing systems is numerous in the related art, but the data on mixing systems in a high-temperature state are relatively less. Mainly because the organic chemical reaction belongs to a thermal promotion system, the reaction of most epoxy asphalt systems is difficult to control after the temperature is raised, the viscosity of the mixture is increased sharply after the epoxy asphalt systems are applied to asphalt modification, the processing and laying time is short, and the processability is poor. Researches show that the reaction rate at high temperature can be effectively reduced by designing a molecular structure through reaction or adjusting the structure of the existing curing agent. However, the synthesis and modification of the curing agent often require the use of raw materials which cannot be purchased directly from the market, and the synthesis and modification steps are complex, complicated and difficult to control, which greatly increases the workload and the difficulty and cost of material preparation, and cannot realize industrial production.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the invention provides a flexible curing agent which can effectively solve the problem that the viscosity of epoxy asphalt is increased too fast during high-temperature mixing.
The invention also provides a preparation method and application of the flexible curing agent.
According to a first aspect of the present invention, a flexible curing agent is presented that contains a thermal blend of a toughening agent and a linear aliphatic amine.
The flexible curing agent according to the first aspect of the present invention has at least the following advantageous effects:
according to the invention, the problem of excessively fast viscosity increase of the epoxy asphalt during high-temperature mixing can be effectively solved by performing thermal blending on the toughening agent and the linear chain fatty amine, the longest time for the viscosity of the epoxy asphalt during high-temperature mixing to reach 1000mPa & s can reach 180min, but the lack of the toughening agent can cause the viscosity to increase rapidly during processing, the viscosity increases linearly after high-temperature mixing for 40min, and the viscosity reaches 1000mPa & s within 100 min. The toughening agent and the linear chain aliphatic amine are subjected to thermal blending, so that the viscosity change in the high-temperature blending process can be effectively controlled, the epoxy asphalt mixture can be processed for a sufficient time at a high temperature, the curing agent and the asphalt can be fully mixed, the compatibility among the components is good, the uniform dispersibility in the asphalt after curing is good, and the strength is high.
Preferably, the number of carbon atoms of the linear aliphatic amine is 2 to 18, preferably 2 to 10, and more preferably 6 to 10.
Preferably, the linear aliphatic amine comprises at least one of hexamethylene diamine, decamethylene diamine, octadecylamine and oleyl amine. Among them, hexamethylenediamine and decamethylenediamine have high activity, and can better cure epoxy resin and improve the strength of a cured product.
Preferably, the thermal blend refers to a mixture of the toughening agent and the linear aliphatic amine after thermal mixing at 30 ℃ to 100 ℃, more preferably 40 ℃ to 90 ℃, and even more preferably 60 ℃ to 80 ℃.
Preferably, the raw materials of the flexible curing agent further comprise a linear polyamine compound, and more preferably, the linear polyamine compound comprises at least one of polyamide and polyether amine.
Preferably, the molecular weight of the polyamide is 100-800; the more preferable molecular weight of the polyamide is 200-700; the polyamide further preferably has a molecular weight of 300 to 500. The polyamide adopted by the invention has relatively long molecular chain, good flexibility, good dispersity and no phase separation, and the molecular chain length can increase the compatibility with asphalt.
Preferably, the raw materials of the flexible curing agent further comprise at least one of a drier, a diluent and an accelerator. The drier can effectively accelerate the crosslinking of compounds containing unsaturated condensed ring structures in the asphalt, the curing of unsaturated double bonds in the oleylamine and the surface drying.
Preferably, the flexible curing agent comprises, by mass, 40-90 parts of linear aliphatic amine, 0-20 parts of linear polyamine compound, 0.05-0.2 part of drier, 5-25 parts of toughening agent, 0.05-1 part of accelerator and 0-35 parts of diluent; more preferably, the raw materials of the flexible curing agent comprise, by mass, 50-80 parts of linear aliphatic amine, 0-15 parts of linear polyamine compound, 0.05-0.1 part of drier, 10-20 parts of toughener, 0.1-0.5 part of accelerator and 0-30 parts of diluent; preferably, the flexible curing agent comprises, by mass, 60-80 parts of linear aliphatic amine, 0-15 parts of linear polyamine compound, 0.05-0.1 part of drier, 10-20 parts of toughening agent, 0.1-0.5 part of accelerator and 0-30 parts of diluent.
Preferably, the toughening agent comprises at least one of nitrile rubber, SBS rubber, carboxyl-terminated nitrile rubber, amino-terminated nitrile rubber, polyethylene glycol and polypropylene glycol. The invention increases the elongation at break of the curing agent system by adding the toughening agent, and improves the adhesion and the bonding force of the curing system to metal substrates and concrete.
Preferably, the accelerator comprises at least one of 2,4, 6-tris (dimethylaminomethyl) phenol, aminoethylpiperazine, triethanolamine and triethylenediamine.
Preferably, the drier comprises at least one of cobalt naphthenate, dibutyltin dilaurate, cobalt isooctanoate, manganese naphthenate. The drier of the invention accelerates the oxygen absorption speed of unsaturated fatty amine chemicals in a curing agent and unsaturated condensed rings and other structures in asphalt so as to achieve the effect of quick drying and effectively improve the condition of sticky asphalt surface.
Preferably, the diluent comprises at least one of benzyl alcohol, n-butanol, and benzyl ether.
According to a second aspect of the present invention, there is provided a method for preparing the flexible curing agent, comprising the steps of: all the raw materials of the flexible curing agent are mixed and reacted to obtain the flexible curing agent.
Preferably, the reaction temperature is 30 ℃ to 100 ℃, more preferably 40 ℃ to 90 ℃, and further preferably 60 ℃ to 80 ℃.
Preferably, the preparation method more specifically comprises the following steps of mixing the linear fatty amine and the flexibilizer, heating and reacting to obtain a material 1; and mixing the material 1 with an accelerator, a drier and a diluent to obtain the flexible curing agent.
Preferably, the reaction of the linear aliphatic amine with the flexibilizer is carried out under a protective atmosphere. The protective atmosphere refers to an inert atmosphere containing no oxidizing gas, such as a nitrogen atmosphere, an argon atmosphere, or the like.
According to a third aspect of the present invention, an epoxy asphalt is provided, wherein the raw materials of the epoxy asphalt comprise the flexible curing agent, epoxy resin and asphalt.
Preferably, the mass ratio of the flexible curing agent to the epoxy resin is 1: 1-2; more preferably, the mass ratio of the flexible curing agent to the epoxy resin is 1: 1 to 1.5.
Preferably, the mass ratio of the flexible curing agent to the asphalt is 1: 2-3; more preferably, the mass ratio of the flexible curing agent to the asphalt is 1: 2.0 to 2.3.
Preferably, the epoxy resin comprises bisphenol a type epoxy resin E-51 resin.
Preferably, the penetration degree of the asphalt is 70-75, preferably about 73, and the softening point of the asphalt is 40-50 ℃, preferably 45-50 ℃, and more preferably about 47.2 ℃. The viscosity (60 ℃) of the asphalt is 100 to 250 mPas, preferably 150 to 200 mPas, and more preferably about 194 mPas.
According to a fourth aspect of the present invention, there is provided a method for preparing epoxy asphalt, comprising the steps of: and mixing and curing the flexible curing agent, the epoxy resin and the asphalt to obtain the epoxy asphalt.
Preferably, the curing temperature is 55-65 ℃, and the curing time is 2-10 days, preferably 4-6 days.
According to the fifth aspect of the invention, the application of the epoxy asphalt in pavement is provided.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the problem of too fast viscosity increase during high-temperature mixing of the epoxy asphalt can be effectively solved by carrying out thermal blending on the toughening agent and the linear chain aliphatic amine, the longest time required for the viscosity of the epoxy asphalt to reach 1000mPa & s during high-temperature mixing can reach 180min, and the processing time is long; but the lack of the toughening agent can cause the viscosity to increase rapidly in the processing process, the viscosity increases linearly after being mixed for 40min at high temperature, and the viscosity reaches 1000mPa & s within 100 min. Meanwhile, the toughening agent increases the elongation at break of the curing agent system, and improves the adhesion and bonding force of the curing system to metal substrates and concrete; the hexamethylene diamine and the decamethylene diamine have higher activity, can better cure the epoxy resin, and improve the curing strength. The elongation at break of the cured epoxy asphalt is more than or equal to 200 percent and reaches 450 percent to the maximum; the tensile strength is more than or equal to 2.4MPa and reaches 3.5MPa to the maximum, and is 59 percent higher than that of the cured product of the comparative example without the toughening agent. Therefore, the toughening agent and the linear chain aliphatic amine are subjected to thermal blending, so that the viscosity change in the high-temperature blending process can be effectively controlled, and the epoxy asphalt mixture can be processed for a long time at a high temperature. Meanwhile, the curing agent and the asphalt are fully mixed, the compatibility among the components is good, the cured asphalt has good uniform dispersibility and high strength.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a graph of the viscosity of an epoxy asphalt mixture prepared in example 1 of the present invention as a function of time;
FIG. 2 is a graph of the viscosity of the epoxy asphalt mixture prepared in example 2 of the present invention as a function of time;
FIG. 3 is a graph of the viscosity of the epoxy asphalt mixture prepared in example 3 of the present invention as a function of time;
FIG. 4 is a graph of the viscosity of the epoxy asphalt mixture prepared in example 4 of the present invention as a function of time;
FIG. 5 is a graph of viscosity versus time for an epoxy asphalt mixture prepared in example 5 of the present invention;
FIG. 6 is a graph showing the viscosity of the epoxy asphalt mixture prepared according to the comparative example of the present invention as a function of time.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The embodiment prepares a flexible curing agent, and the specific process is as follows: placing 60 parts of hexamethylenediamine in a reaction kettle, heating to 60 ℃, adding 20 parts of polypropylene glycol, reacting for 2 hours under the protection of nitrogen, continuously adding 0.5 part of 2,4, 6-tri (dimethylaminomethyl) phenol, 0.1 part of cobalt naphthenate and 30 parts of benzyl alcohol, and discharging to obtain the flexible curing agent.
Example 2
The embodiment prepares a flexible curing agent, and the specific process is as follows: putting 68 parts of octadecylamine and 12 parts of polyamide in a reaction kettle, heating to 80 ℃, adding 20 parts of nitrile rubber, reacting for 2 hours under the protection of nitrogen, continuously adding 0.5 part of 2,4, 6-tri (dimethylaminomethyl) phenol, 0.1 part of cobalt naphthenate and 15 parts of benzyl alcohol, and discharging to obtain the flexible curing agent.
Example 3
The embodiment prepares a flexible curing agent, and the specific process is as follows: 60 parts of oleylamine is placed in a reaction kettle, the temperature is raised to 80 ℃, 20 parts of nitrile rubber is added, the mixture reacts for 2 hours under the protection of nitrogen, 0.1 part of 2,4, 6-tri (dimethylaminomethyl) phenol, 0.1 part of cobalt naphthenate and 20 parts of benzyl alcohol are continuously added, and the flexible curing agent is obtained after discharging.
Example 4
The embodiment prepares a flexible curing agent, and the specific process is as follows: 68 parts of oleylamine and 12 parts of polyamide are placed in a reaction kettle, the temperature is raised to 80 ℃, 20 parts of amino-terminated butadiene-acrylonitrile rubber is added, the mixture reacts for 2 hours under the protection of nitrogen, 0.5 part of 2,4, 6-tri (dimethylaminomethyl) phenol and 0.1 part of cobalt naphthenate are continuously added, and the flexible curing agent is obtained after discharging.
Example 5
The embodiment prepares a flexible curing agent, and the specific process is as follows: placing 60 parts of decamethylenediamine and 12 parts of polyamide in a reaction kettle, heating to 80 ℃, adding 20 parts of amino-terminated butadiene-acrylonitrile rubber, reacting for 2 hours under the protection of nitrogen, continuously adding 0.5 part of 2,4, 6-tri (dimethylaminomethyl) phenol, 0.1 part of cobalt naphthenate and 8 parts of benzyl alcohol, and discharging to obtain the flexible curing agent.
Comparative example
The embodiment prepares the curing agent, the preparation raw materials do not contain the toughening agent, and the specific process comprises the following steps: 60 parts of oleylamine and 12 parts of polyamide are placed in a reaction kettle, the temperature is increased to 80 ℃, the mixture is mixed, 0.5 part of 2,4, 6-tri (dimethylaminomethyl) phenol, 0.1 part of cobalt naphthenate and 28 parts of benzyl alcohol are continuously added, and the curing agent is obtained after discharging.
TABLE 1 raw material ratio table of flexible curing agent
Test examples
Mixing the curing agents prepared in examples 1-5 and comparative examples with epoxy resin E-51 according to a mass ratio of 44:56, mixing the mixed glue solution with asphalt according to a mass ratio of 50:50, pouring the mixture into a mold, curing for 4d at 60 ℃ to obtain epoxy asphalt, and testing the tensile strength and the elongation at break of the epoxy asphalt according to GB/T528-1998 determination of the tensile stress strain performance of vulcanized rubber or thermoplastic rubber, wherein the results are shown in Table 2; and testing the viscosity of the uniformly stirred components of the epoxy asphalt by using a Brookfield viscometer according to the ASTM D4402 standard, placing a proper amount of epoxy asphalt sample in a hot container, then lowering a rotor to be submerged in the sample preheated to a certain temperature (160-180 ℃) at the rotating speed of 25 revolutions per minute, starting timing by using a stopwatch, recording the change of the viscosity of the epoxy asphalt mixture along with the time, recording the interval of data of 5-10 minutes, and testing results are shown in figures 1-6. .
TABLE 2 mechanical Properties of the epoxy asphalt
| Item | Tensile strength/MPa | Elongation at break% |
| Example 1 | 2.4 | 200 |
| Example 2 | 2.9 | 304 |
| Example 3 | 3.2 | 450 |
| Example 4 | 3.5 | 414 |
| Example 5 | 3.0 | 380 |
| Comparative example | 2.2 | 120 |
In table 2, the tensile strength of the epoxy asphalt cured by the flexible curing agent prepared in examples 1 to 5 is not less than 2.4MPa, wherein the tensile strength of the epoxy asphalt cured by the flexible curing agent prepared in example 4 is as high as 3.5MPa, which is 59% higher than that of the comparative curing agent without the toughening agent; the elongation at break is more than or equal to 200 percent, wherein the elongation at break of the epoxy asphalt cured by the flexible curing agent prepared in example 3 is up to 450 percent and is higher than that of the comparative example 330 percent.
As shown in fig. 1 to 6, the epoxy asphalt mixture using the flexible curing agent prepared in examples 1 to 5 of the present invention takes a maximum time of 180min when the viscosity reaches 1000mPa · s after high temperature mixing, while the epoxy asphalt mixture of the comparative example does not contain a toughening agent, and the viscosity increases linearly after high temperature mixing for 40min, and reaches 1000mPa · s after 100 min. Therefore, the problem that the viscosity is increased too fast during high-temperature mixing of the epoxy asphalt can be effectively solved by co-heating and mixing the linear chain fatty amine and the flexibilizer.
Claims (10)
1. A flexible curing agent comprising a thermal blend of a toughening agent and a linear aliphatic amine.
2. The flexible curing agent according to claim 1, wherein the linear aliphatic amine has 2 to 18 carbon atoms.
3. The flexible curing agent of claim 1, wherein the raw material of the flexible curing agent further comprises a linear polyamine-based compound.
4. The flexible curing agent of claim 1, wherein the raw materials of the flexible curing agent further comprise at least one of a drier, a diluent, and an accelerator.
5. The flexible curing agent of claim 1, wherein the toughening agent comprises at least one of nitrile rubber, SBS rubber, carboxyl terminated nitrile rubber, amino terminated nitrile rubber, polyethylene glycol, polypropylene glycol.
6. The flexible curing agent of claim 4, wherein the drier comprises at least one of cobalt naphthenate, dibutyltin dilaurate, cobalt isooctoate, manganese naphthenate.
7. The method for preparing a flexible curing agent according to any one of claims 1 to 6, comprising the steps of: all the raw materials of the flexible curing agent are mixed and reacted to obtain the flexible curing agent.
8. An epoxy asphalt, characterized in that the raw materials of the epoxy asphalt comprise the flexible curing agent according to any one of claims 1 to 6, an epoxy resin and asphalt.
9. The process for preparing an epoxy asphalt according to claim 8, comprising the steps of: mixing and curing the flexible curing agent, the epoxy resin and the asphalt according to any one of claims 1 to 6 to obtain the epoxy asphalt.
10. Use of the epoxy asphalt of claim 8 in road paving.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114891319A (en) * | 2022-06-16 | 2022-08-12 | 东南大学 | Economical low-temperature-resistant high-flexibility epoxy resin material for epoxy asphalt and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040069405A1 (en) * | 2002-10-14 | 2004-04-15 | Hachikian Zakar Raffi | Two-part epoxy adhesives with improved flexibility and process for making and using same |
| CN105419233A (en) * | 2015-12-04 | 2016-03-23 | 长安大学 | Epoxy resin curing material system for high-temperature mixed epoxy asphalt and preparation method thereof |
| CN112280251A (en) * | 2020-11-24 | 2021-01-29 | 南京阿斯孚特新材料科技有限公司 | High-performance amine curing system epoxy asphalt material and preparation method thereof |
-
2021
- 2021-10-28 CN CN202111259845.9A patent/CN114044882A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040069405A1 (en) * | 2002-10-14 | 2004-04-15 | Hachikian Zakar Raffi | Two-part epoxy adhesives with improved flexibility and process for making and using same |
| CN105419233A (en) * | 2015-12-04 | 2016-03-23 | 长安大学 | Epoxy resin curing material system for high-temperature mixed epoxy asphalt and preparation method thereof |
| CN112280251A (en) * | 2020-11-24 | 2021-01-29 | 南京阿斯孚特新材料科技有限公司 | High-performance amine curing system epoxy asphalt material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114891319A (en) * | 2022-06-16 | 2022-08-12 | 东南大学 | Economical low-temperature-resistant high-flexibility epoxy resin material for epoxy asphalt and preparation method thereof |
| EP4293063A1 (en) * | 2022-06-16 | 2023-12-20 | Southeast University | Economical epoxy resin material for epoxy asphalt with low temperature resistance and high flexibility as well as preparation method thereof |
| JP2023184472A (en) * | 2022-06-16 | 2023-12-28 | ▲東▼南大学 | Epoxy resin material for epoxy asphalt having economical efficiency and high low-temperature flexibility, and method for producing the same |
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