CN113773800A - Environment-friendly epoxy asphalt binder and preparation method thereof - Google Patents
Environment-friendly epoxy asphalt binder and preparation method thereof Download PDFInfo
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- CN113773800A CN113773800A CN202111083339.9A CN202111083339A CN113773800A CN 113773800 A CN113773800 A CN 113773800A CN 202111083339 A CN202111083339 A CN 202111083339A CN 113773800 A CN113773800 A CN 113773800A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
Abstract
The application relates to the technical field of materials for road and bridge construction, and particularly discloses an environment-friendly epoxy asphalt binder and a preparation method thereof. An environment-friendly epoxy asphalt binder comprises the following components in parts by weight: 60-100 parts of bisphenol A epoxy resin, 6-20 parts of flexible epoxy resin, 5-20 parts of reactive diluent, 0.1-1 part of defoaming agent, 10-40 parts of toughening agent, 50-120 parts of polyether amine curing agent, 1-8 parts of accelerator and 70-120 parts of asphalt. The adhesive layer has the advantage of improving the flexibility of the adhesive layer; moreover, the raw materials are non-toxic, and meanwhile, the asphalt raw materials can be regenerated asphalt, so that waste utilization is realized, and the effect of environmental protection is achieved.
Description
Technical Field
The application relates to the technical field of materials for road and bridge construction, in particular to an environment-friendly epoxy asphalt binder and a preparation method thereof.
Background
Asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetallic derivatives thereof, and is one of high-viscosity organic liquids. Because of its good waterproof, moistureproof and anticorrosive properties, asphalt is often used in the industries of paint, plastics, rubber, etc. and in the fields of paving bridges, etc.
In the pavement process of the pavement and the bridge, asphalt is filled between the bridge deck and the pavement layer to form a bonding layer, so that the strength of the bridge deck is improved, and water entering the bridge structure is reduced. Because the bonding layer has certain flexibility, the bonding layer can deform correspondingly along with the acting force acting on the bridge deck and the pavement layer, and the effect of protecting the bridge is achieved. However, under the influence of long-term rolling of vehicles and weather, the flexibility of the bonding layer formed by asphalt is easy to reduce, and the compressive strength of the bridge deck is easy to reduce.
Disclosure of Invention
In order to improve the flexibility of a bonding layer, the application provides an environment-friendly epoxy asphalt binder and a preparation method thereof.
In a first aspect, the present application provides an environment-friendly epoxy asphalt binder, which adopts the following technical scheme:
an environment-friendly epoxy asphalt binder comprises the following components in parts by weight: 60-100 parts of bisphenol A epoxy resin, 6-20 parts of flexible epoxy resin, 5-20 parts of reactive diluent, 0.1-1 part of defoaming agent, 10-40 parts of toughening agent, 50-120 parts of polyether amine curing agent, 1-8 parts of accelerator and 70-120 parts of asphalt.
By adopting the technical scheme, the flexible epoxy resin and the bisphenol A epoxy resin are compounded, so that the bisphenol A epoxy resin is subjected to chain extension. The potential barrier of chain motion between cross-linking points of a cured product formed after the chain extension of the bisphenol A epoxy resin is small, so that the glass transition temperature of the cured product is reduced, the bending property and the flexibility of the cured product are improved, the elongation and the impact toughness of the cured product are improved, and the effect of improving the flexibility of the prepared adhesive is achieved.
The bisphenol A skeleton in the bisphenol A epoxy resin has better toughness and heat resistance, and the methylene chain in the bisphenol A epoxy resin ensures that the bisphenol A epoxy resin has better flexibility, so that the prepared adhesive has better flexibility. Meanwhile, due to the chemical activity of the epoxy group of the bisphenol A epoxy resin, curing reaction can be initiated after the curing agent is added, so that ring opening and crosslinking are carried out to generate a network structure, the binding force among the components is improved, and the binding strength of the prepared binding agent is improved.
The reactive diluent is an inert substance, can reduce the viscosity of the bisphenol A epoxy resin, so that other components can be added into the bisphenol A epoxy resin, the contact area of the bisphenol A epoxy resin and the other components is increased, the bonding force among the components is increased, and the bonding strength among the components is increased.
The toughening agent is a substance capable of increasing the flexibility of an adhesive film layer, and the brittleness of the bisphenol A epoxy resin is reduced by introducing a flexible chain segment into a cross-linked structure of the bisphenol A epoxy resin, so that the effect of improving the toughness of the bisphenol A epoxy resin is achieved, and the toughness of the adhesive is improved. Meanwhile, the asphalt is a high-viscosity organic liquid, so that the binding force among the components can be improved, and the flexibility of the binder can be improved.
Preferably, the flexible epoxy resin is one or more of 1, 4-butanediol diglycidyl ether, castor oil glycidyl ether, polyethylene glycol diglycidyl ether, trimethylolpropane triglycidyl ether and dimer acid glycidyl ester.
By adopting the technical scheme, the 1, 4-butanediol diglycidyl ether, the castor oil glycidyl ether, the polyethylene glycol diglycidyl ether, the trimethylolpropane triglycidyl ether and the dimer acid glycidyl ester all contain more flexible chain segments, can generate chain extension action with bisphenol A epoxy resin, improves the flexibility and the flexibility of a cured product, and further improves the elongation and the impact toughness of the prepared adhesive.
Optionally, the reactive diluent is one or more of octyl glycidyl ether, amyl glycidyl ether, decyl glycidyl ether, carbon dodecyl glycidyl ether, carbon tetradecyl glycidyl ether and phenyl glycidyl ether.
By adopting the technical scheme, the octyl glycidyl ether, the amyl glycidyl ether, the carbon dodecaglycidyl ether, the carbon tetradecadecyl glycidyl ether and the phenyl glycidyl ether all contain ether bonds and epoxy groups, and the ether bonds and the epoxy groups participate in curing reaction to form a uniform system, so that the viscosity of a resin system can be reduced, the bisphenol A epoxy resin has good diluting and wetting effects, and the flexibility of the epoxy resin is improved.
Optionally, the toughening agent is one or more of carboxyl-terminated nitrile rubber, amino-terminated nitrile rubber, epoxy-terminated nitrile rubber and a polyurethane toughening agent.
By adopting the technical scheme, the carboxyl-terminated liquid nitrile rubber is nitrile rubber with active functional group carboxyl at two ends of a molecular chain, the nitrile rubber has better miscibility with bisphenol A epoxy resin, carboxyl in the carboxyl-terminated liquid nitrile rubber reacts with epoxy in the bisphenol A epoxy resin in the curing process, the carboxyl and the epoxy are subjected to phase separation after curing to form a sea-island structure, impact energy can be better absorbed, the toughness of the bisphenol A epoxy resin is improved, the strength of a formed cured product is slowly reduced along with the temperature rise, and the weather resistance of the prepared adhesive is favorably improved.
The amino-terminated nitrile rubber is nitrile rubber with active functional groups at two ends of a molecular chain, and amino in amino-terminated liquid nitrile rubber reacts with epoxy groups in bisphenol A epoxy resin in a curing process, so that a flexible chain segment is introduced, and the flexibility of the bisphenol A epoxy resin is improved.
The epoxy-terminated nitrile rubber is nitrile rubber with active functional groups at two ends of a molecular chain, the activity of epoxy groups on the epoxy-terminated nitrile rubber is similar to that of epoxy groups on epoxy resin, and the epoxy-terminated nitrile rubber participates in a curing reaction in the curing process, so that the epoxy-terminated nitrile rubber and bisphenol A epoxy resin form a cross-linked network, the combination of a rubber phase and the bisphenol A epoxy resin is facilitated, and the effect of improving the toughness of the bisphenol A epoxy resin is achieved.
The polyurethane is a general name of macromolecular compounds containing repeated urethane groups on the main chain, can increase the film flexibility of the adhesive, and has excellent toughening effect and small influence on other mechanical properties of the adhesive.
Optionally, the curing agent includes one or more of a polyetheramine curing agent, a hexamethylenediamine curing agent, a divinylpropylamine curing agent, a polyamide curing agent, an isophoronediamine curing agent, an N-aminoethylpiperazine curing agent, and a cardanol modified curing agent.
By adopting the technical scheme, the curing agent can well initiate the curing reaction of the bisphenol A epoxy resin in the application, and the formed cured product has good strength, heat resistance and corrosion resistance.
Optionally, the promoter is one or two of 2,4, 6-tris (dimethylaminomethyl) phenol and lewis acid.
By adopting the technical scheme, the 2,4, 6-tris (dimethylaminomethyl) phenol can shorten the curing time of the bisphenol A epoxy resin, has obvious promotion effect on curing a bisphenol A epoxy resin system at high temperature, and can also properly improve the bonding strength; lewis acids refer to coordination bond-forming central bodies that can be made to promote the activation of hydrogen groups, thereby promoting the curing of bisphenol a epoxy resins.
Optionally, the asphalt is reclaimed asphalt.
By adopting the technical scheme, the recycled asphalt is selected as the asphalt raw material, and the prepared adhesive has good performances in all aspects, so that waste utilization is realized, the pollution of the waste asphalt to the environment is reduced, and the adhesive is green and environment-friendly.
Optionally, the binder further comprises the following components in parts by weight: 6-10 parts of a modifier, wherein the modifier comprises alkylbenzene sulfonate.
By adopting the technical scheme, the alkylbenzene sulfonate with specified amount is added to act with the asphaltene to form a compact mixed adsorption film, thereby reducing the brittleness and interfacial tension of the asphaltene and improving the flexibility of the prepared binder. Meanwhile, as the interfacial tension of the asphalt is reduced, the bonding work required by the asphalt during bonding is reduced, so that the asphalt is better bonded among the components, the bonding force among the components is improved, and the strength of the formed bonding layer is improved.
In a second aspect, the present application provides a method for preparing an environment-friendly epoxy asphalt binder, which adopts the following technical scheme: the preparation method of the environment-friendly epoxy asphalt binder comprises the following steps:
uniformly stirring bisphenol A epoxy resin, flexible epoxy resin, reactive diluent, toughening agent and defoaming agent to prepare a first mixture;
heating asphalt to a molten state in advance, heating a curing agent in advance, and then mixing and stirring the curing agent, the accelerator and the molten asphalt uniformly to prepare a second mixture;
and uniformly mixing and stirring the first mixture and the second mixture, and curing for a period of time at room temperature to obtain the environment-friendly epoxy asphalt binder.
By adopting the technical scheme, the bisphenol A epoxy resin, the flexible epoxy resin, the reactive diluent, the toughening agent and the defoaming agent are mixed and stirred in advance, and then the curing agent, the accelerator and the asphalt are added, so that the bisphenol A epoxy resin is fully mixed with the components and then undergoes a curing reaction, and a cured product with excellent strength and flexibility is formed.
Optionally, the preparation method of the environment-friendly epoxy asphalt binder further comprises the following steps: adding alkylbenzene sulfonate into the molten asphalt in advance, stirring and mixing uniformly to prepare modified asphalt, and then mixing and stirring the curing agent, the accelerator and the modified asphalt uniformly to prepare a second mixture.
By adopting the technical scheme, the asphalt is modified by the alkylbenzene sulfonate in advance, so that the bonding effect and the flexibility of the modified asphalt are improved, and the flexibility and the bonding strength of the prepared bonding agent are improved.
In summary, the present application has the following beneficial effects:
1. according to the application, the flexible epoxy resin is used for chain extension of the bisphenol A epoxy resin, the potential barrier of chain movement between cross-linking points of the cured product is reduced, the glass transition temperature of the cured product is reduced, the flexibility and the flexibility of the cured product are improved, and therefore the elongation and the impact toughness of the prepared adhesive are improved.
2. According to the method, the recycled asphalt is selected as the asphalt raw material, and the prepared binder has good performance in all aspects, so that the waste utilization is realized, the pollution of the waste asphalt to the environment is reduced, and the method is green and environment-friendly.
3. According to the asphalt modified asphalt adhesive, the modifying agent is used for modifying asphalt in advance, the alkylbenzene sulfonate can act with the asphaltene and form a tight mixed adsorption film, the brittleness and the interfacial tension of the asphaltene are reduced, the bonding force between the asphalt and each component is better, and the strength and the flexibility of a formed bonding layer are improved.
Detailed Description
The present application will be described in further detail with reference to examples.
In this example, the raw materials are commercially available, and the bisphenol-A epoxy resin is available from Wuxi Bory chemical technology, Inc., Cathaki No. epoxy E44 (6101);
the epoxy-terminated nitrile rubber is produced by Xiamen Kema chemical Co., Ltd, and the product number is E223;
the polyamide curing agent is produced by Korosol composite material science and technology Limited of Guangzhou city, and has the product number of H-350;
the cardanol modified curing agent is produced by good-hour chemical engineering Limited company in Changzhou city, and the product number is CA 2300;
sodium alkyl benzene sulfonate is produced from Guangzhou Honghai chemical Co., Ltd, with the product number of 097;
the carboxyl-terminated nitrile rubber is produced from Jingjiang City Tonghuo chemical industry Co., Ltd
TGLI；
The amino-terminated nitrile rubber is produced by Shanghai Citailong industries, Ltd;
the polyurethane toughening agent is produced by Iterg chemical engineering Co., Suzhou, with the product number of 123456;
bisphenol F epoxy resin is available from stannless bory chemical technology ltd under the trade designation epoxy 618(E51) blue;
the polyether amine is produced from Kyoho chemical Co., Ltd, Guangzhou, with the product number of 2056;
the regenerated asphalt is obtained by regenerating waste asphalt.
Examples
Examples 1 to 5 are described below as examples.
An environment-friendly epoxy asphalt binder comprises the following components in parts by weight: 60-100 parts of bisphenol A epoxy resin, 6-20 parts of flexible epoxy resin, 5-20 parts of reactive diluent, 0.1-1 part of defoaming agent, 10-40 parts of toughening agent, 50-120 parts of curing agent, 1-8 parts of accelerator and 70-120 parts of asphalt.
Wherein the flexible epoxy resin is castor oil glycidyl ether;
the reactive diluent is a mixture of octyl glycidyl ether and phenyl glycidyl ether, and the mass ratio of the octyl glycidyl ether to the phenyl glycidyl ether is 1: 4;
the defoaming agent is an organic silicon defoaming agent;
the toughening agent is amino-terminated butadiene-acrylonitrile rubber;
the curing agent is polyether amine curing agent and polyamide modified curing agent according to the mass ratio of 1: 7;
the accelerant is 2,4, 6-tri (dimethylaminomethyl) phenol;
the asphalt is No. 70 matrix asphalt.
The preparation method of the adhesive comprises the following steps:
and S1, uniformly stirring the bisphenol A epoxy resin, the flexible epoxy resin, the reactive diluent, the toughening agent and the defoaming agent at the stirring speed of 700rpm for 30min to obtain the agent A.
S2, heating the asphalt to a molten state at the temperature of 140-150 ℃ in advance, heating the curing agent to 60 ℃ in advance, and then uniformly stirring the curing agent, the accelerator and the molten asphalt, wherein the temperature is maintained at 60 ℃ in the stirring process, the stirring speed is 500rpm, and the stirring time is 20min, so as to obtain the agent B.
And S3, finally, uniformly mixing and stirring the agent A and the agent B according to the mass ratio of 1:1, wherein the stirring speed is 800rpm, the stirring time is 10min, curing is carried out at room temperature, and the environment-friendly epoxy asphalt binder is prepared after curing for one week.
As shown in Table 1, examples 1-5 differ primarily in the amounts of the components in the feed.
Table 1 binder raw material composition table
Example 6
The difference between the embodiment and the embodiment 3 is that the adhesive also comprises 8kg of modifier, and the modifier is sodium alkyl benzene sulfonate.
The difference between the preparation method of the embodiment and the preparation method of the embodiment 3 is that: in step S2, after the asphalt is heated to a molten state, sodium alkyl benzene sulfonate is added and mixed for 5min at a stirring speed of 300rpm to obtain modified asphalt, and the obtained modified asphalt is mixed with the curing agent and the accelerator and stirred uniformly to obtain the agent B.
Example 7
The difference between this example and example 6 is that the modifier is sodium alkyl benzene sulfonate, and the mass of the sodium alkyl benzene sulfonate is 6 kg.
Example 8
The difference between this example and example 6 is that the modifier is sodium alkyl benzene sulfonate, and the mass of the sodium alkyl benzene sulfonate is 10 kg.
Example 9
This example differs from example 3 in that the castor oil glycidyl ether is replaced by an equal amount of 1,4 butanediol diglycidyl ether.
Example 10
This example differs from example 3 in that the castor oil glycidyl ether is replaced by an equal amount of polyethylene glycol diglycidyl ether.
Example 11
This example differs from example 3 in that the amino-terminated nitrile rubber is replaced by an equal amount of carboxy-terminated nitrile rubber.
Example 12
This example differs from example 3 in that the amino-terminated nitrile rubber is replaced by an equal amount of epoxy-terminated nitrile rubber.
Example 13
The difference between the embodiment and the embodiment 3 is that the curing agent is a polyether amine curing agent and a cardanol modified curing agent according to a mass ratio of 1: 7, the mass of the curing agent is 80 kg.
Example 14
The difference between the embodiment and the embodiment 3 is that the curing agent is polyether amine curing agent and aromatic amine modified curing agent according to the mass ratio of 1: 6, the mass of the curing agent is 80 kg.
Example 15
The difference between this example and example 3 is that the curing agent is a polyetheramine curing agent, and the mass of the curing agent is 80 kg.
Example 16
This example differs from example 3 in that the mass of the curing agent was 50 kg.
Example 17
This example differs from example 3 in that the mass of the curing agent was 120 kg.
Example 18
This example differs from example 3 in that the bitumen is a reclaimed bitumen.
Comparative example
Comparative example 1
This comparative example differs from example 3 in that the bisphenol a epoxy resin is replaced with an equal amount of bisphenol F epoxy resin.
Comparative example 2
This comparative example differs from example 3 in that no flexible epoxy resin was added.
Comparative example 3
This comparative example differs from example 3 in that the mass of the flexible epoxy resin was 2 kg.
Comparative example 4
This comparative example differs from example 3 in that the mass of the flexible epoxy resin was 30 kg.
Comparative example 5
This comparative example differs from example 3 in that no toughening agent was added.
Comparative example 6
This comparative example differs from example 6 in that the modifier is sodium alkyl benzene sulfonate, the mass of which is 2 kg.
Comparative example 7
This comparative example differs from example 6 in that the sodium alkyl benzene sulfonate was replaced with an equal amount of sodium alkyl benzene sulfate.
Comparative example 8
This comparative example differs from example 6 in that the modifier is sodium alkyl benzene sulfonate, the mass of which is 15 kg.
Comparative example 9
The epoxy asphalt binder in the related art comprises a component A and a component B, wherein the component A comprises the following substances by mass: 100kg of bisphenol F epoxy resin, 10kg of toughening agent and 10kg of diluent;
the component B comprises the following substances by mass: 60kg of curing agent, 80kg of asphalt and 1kg of defoaming agent.
Wherein the toughening agent is a polyurethane toughening agent;
the diluent is glycerol triglycidyl ether;
the curing agent is polyamide;
the asphalt is No. 20 matrix asphalt;
the defoaming agent is polysiloxane.
The preparation method of the epoxy asphalt binder comprises the following steps:
a1: mixing bisphenol F epoxy resin, a toughening agent and a diluent, heating to 70 ℃, stirring at the speed of 300rpm for 30min, and cooling to room temperature to obtain the component A.
A2: preheating asphalt to 130-140 ℃ for melting, then mixing the curing agent, the melted asphalt and the defoaming agent, and stirring at the stirring speed of 400rpm for 30min to obtain the component B.
A3: mixing and stirring the component A and the component B according to the mass ratio of 1:1 at room temperature, wherein the stirring speed is 600rpm, the stirring time is 10min, and taking out the mixture after stirring is finished and curing the mixture at room temperature for 7 days to obtain the epoxy resin adhesive.
Performance test
Tensile strength test: the finished adhesives of examples 1-18 and comparative examples 1-9 were tested for tensile strength with reference to the tensile strength test method of GB/T2567-.
Elongation at break test: the finished adhesive products in examples 1 to 18 and comparative examples 1 to 9 were tested for elongation at break with reference to the elongation at break test method in GB/T2567-.
Bond strength test: the finished adhesives of examples 1 to 18 and comparative examples 1 to 9 were tested for adhesive strength with reference to the adhesive strength test method of GB/T2567-.
And (3) artificial aging test: test methods in GB/T1865-2009 finished binders in examples 1-18 and comparative examples 1-9 were subjected to an aging test.
Table 2 binder product performance test data sheet
As can be seen from Table 2, the tensile strength, elongation at break and adhesive strength of the adhesive of the present application are all excellent, and example 3 is a preferred example and the mass content of each component is optimal, as can be seen from the test data of the combination of examples 1-5 and comparative example 9.
The test data of the embodiment 3, the embodiments 11 to 12 and the comparative examples 1 to 4 are combined to show that the bisphenol A epoxy resin can effectively improve the tensile strength and the bonding strength of the adhesive, meanwhile, the bisphenol A epoxy resin and the flexible epoxy resin are added after being compounded according to a certain proportion, the flexibility of a cured product can be effectively improved, and the prepared adhesive has more excellent performances in all aspects.
Combining the test data of examples 6-8 and comparative examples 6-8, it can be seen that the asphalt is pre-modified by sodium alkyl benzene sulfonate to improve the flexibility of the asphalt, so that the prepared adhesive has better tensile strength and bonding strength.
The test data of the embodiment 3 and the embodiment 18 show that the adhesive prepared by using the recycled asphalt as the asphalt raw material has better performances in all aspects, namely, the waste utilization can be realized, and the environment is protected.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. An environment-friendly epoxy asphalt binder is characterized in that: the raw materials of the adhesive comprise the following components in parts by weight: 60-100 parts of bisphenol A epoxy resin, 6-20 parts of flexible epoxy resin, 5-20 parts of reactive diluent, 0.1-1 part of defoaming agent, 10-40 parts of toughening agent, 50-120 parts of curing agent, 1-8 parts of accelerator and 70-120 parts of asphalt.
2. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the flexible epoxy resin is one or more of 1, 4-butanediol diglycidyl ether, castor oil glycidyl ether, polyethylene glycol diglycidyl ether, trimethylolpropane triglycidyl ether and dimer acid glycidyl ester.
3. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the reactive diluent is one or more of octyl glycidyl ether, amyl glycidyl ether, decyl glycidyl ether, carbon dodecaglycidyl ether, carbon tetradecyl glycidyl ether and phenyl glycidyl ether.
4. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the toughening agent is one or more of carboxyl-terminated butadiene-acrylonitrile rubber, amino-terminated butadiene-acrylonitrile rubber, epoxy-terminated butadiene-acrylonitrile rubber and polyurethane toughening agent.
5. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the curing agent comprises one or more of a polyether amine curing agent, a hexamethylene diamine curing agent, a divinyl propylamine curing agent, a polyamide curing agent, an isophorone diamine curing agent, an N-aminoethyl piperazine curing agent and a cardanol modified curing agent.
6. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the promoter is one or two of 2,4, 6-tri (dimethylaminomethyl) phenol and Lewis acid.
7. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the asphalt is regenerated asphalt.
8. The environment-friendly epoxy asphalt binder according to claim 1, wherein: the adhesive also comprises the following components in parts by weight: 6-10 parts of a modifier, wherein the modifier comprises alkylbenzene sulfonate.
9. The preparation method of the environment-friendly epoxy asphalt binder is characterized by comprising the following steps: the method comprises the following steps:
uniformly stirring bisphenol A epoxy resin, flexible epoxy resin, reactive diluent, toughening agent and defoaming agent to prepare a first mixture;
heating asphalt to a molten state in advance, heating a curing agent in advance, and then mixing and stirring the curing agent, the accelerator and the molten asphalt uniformly to prepare a second mixture;
and uniformly mixing and stirring the first mixture and the second mixture, and curing for a period of time at room temperature to obtain the environment-friendly epoxy asphalt binder.
10. The method for preparing the environment-friendly epoxy asphalt binder as claimed in claim 9, wherein the method comprises the following steps: adding alkylbenzene sulfonate into the molten asphalt in advance, stirring and mixing uniformly to prepare modified asphalt, and then mixing and stirring the curing agent, the accelerator and the modified asphalt uniformly to prepare a second mixture.
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| CN114479360A (en) * | 2022-02-14 | 2022-05-13 | 瑞奇化工(湖北)有限公司 | Epoxy resin composite material and preparation method and application thereof |
| CN115627051A (en) * | 2022-10-18 | 2023-01-20 | 保利长大工程有限公司 | Preparation method of high-performance wide-temperature-range epoxy resin binder |
| CN117247721A (en) * | 2023-08-28 | 2023-12-19 | 四川省承华建固防水材料有限公司 | Solvent-free flexible epoxy waterproof material and preparation and construction methods thereof |
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