CN109825163B - High-permeability epoxy waterproof anticorrosive paint and preparation method thereof - Google Patents
High-permeability epoxy waterproof anticorrosive paint and preparation method thereof Download PDFInfo
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Abstract
The invention provides a high-permeability epoxy waterproof anticorrosive paint and a preparation method thereof, wherein the high-permeability epoxy waterproof anticorrosive paint comprises a component A and a component B; the component A comprises 30-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 10-50 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B comprises 50-160 parts of sulfydryl modified curing agent, 10-30 parts of polyether amine curing agent, 1-20 parts of accelerator and 0-3 parts of coupling agent. According to the invention, the polythiol modified epoxy resin and the hydrogenated epoxy resin are introduced into the epoxy resin, and are interacted with the epoxy resin to form a specific formula with three epoxy resins coexisting, the formula has the advantages of high toughness, good corrosion resistance and excellent waterproof performance, and the corrosion resistance and the waterproof performance of the paint can be improved by at least 50-200% times compared with those of the traditional epoxy resin waterproof anticorrosive paint under the condition of adopting a sulfydryl modified curing agent.
Description
Technical Field
The invention relates to the field of epoxy resin coatings, in particular to a high-permeability epoxy waterproof anticorrosive coating and a preparation method thereof.
Background
In recent years, the countries have great investment in infrastructure, and the construction of buildings, rail transit, roads and tunnels has also leap development, which is bound to be accompanied by the continuous improvement of the standard of the infrastructure construction on the subject matter, the continuous improvement of the technical requirements, and the continuous improvement of the technical standards of corresponding construction materials, waterproof anticorrosive coatings and maintenance materials. Particularly, in coastal areas of China, concrete structures are mostly in saline-alkali environments, and solutions containing chemical substances such as chloride ions, sulfate radicals, hydroxyl radicals and the like soak the concrete for a long time, so that the concrete structures are damaged, the phenomena of loose structures, peeling, falling off and the like occur, then steel bars inside the concrete structures are corroded, and finally the safety of main body structures is affected, so that the concrete structures are protected durably, and the method is an important means for ensuring national infrastructure to achieve the national century-oriented goal.
At present, the traditional waterproof and anticorrosive materials mainly comprise materials such as polyurethane and polyurea, the materials are attached to the surface of concrete to form a waterproof layer, the waterproof layer can play a good waterproof role on the surface of the concrete, but the materials cannot penetrate into the interior of the concrete to carry out deeper protection, the materials can easily fall off and damage due to the action of external force impact, stress and the like to lose the protection effect, and the concrete structure is exposed to the environment again to be corroded. Therefore, waterproof and anticorrosive coatings with excellent chemical resistance, high durability and very good physical properties will be a future market trend.
The epoxy resin molecule has benzene ring, ether bond, hydroxyl, epoxy group and other groups, the benzene ring endows the epoxy resin with very good physical property and heat resistance, the ether bond endows the epoxy resin with good chemical resistance, the hydroxyl group enables the epoxy to have very good cohesiveness with interfaces of concrete, reinforcing steel bar and the like, the epoxy group enables the epoxy resin to have very good reactivity, a proper curing agent is selected to enable the material to be capable of reacting and curing at normal temperature, a solidified body has very good chemical and physical properties, and one epoxy group can release one hydroxyl group after reaction, so that the cohesive force of the epoxy resin is further improved. The epoxy resin has excellent chemical corrosion resistance, good adhesion and very high mechanical strength, and is very suitable for industrial fields such as waterproof anticorrosive paint, epoxy floor paint in building engineering, adhesive and the like.
As disclosed in chinese patent publication No.: CN102504670A, inventive name: a permeable epoxy resin waterproof coating for concrete, in which a permeable epoxy resin waterproof coating composition for concrete is provided; chinese patent publication No.: CN102433057A, inventive name: a bi-component high-permeability epoxy resin waterproof reinforcing coating, a preparation method and application thereof. The two patent A components both take epoxy resin and bisphenol F epoxy resin as main resin, furfural, acetone and reactive diluent are adopted, as is known, acetone is a flammable and explosive raw material for preparing drugs, the production and construction are easy to generate risks such as combustion, explosion and the like, the acetone volatilized into the air is harmful to human bodies after being inhaled, and the two patent A components are not ideal in the aspects of production and use. The component B is cured by polyamine, the curing agents and the epoxy resin have poor toughness after being cured, the toughness of the product is adjusted by only the additive type toughening agent, and a cured body after reaction is still brittle, so that the waterproof layer is damaged due to the phenomena of poor durability, brittle rebound and the like.
Therefore, it is necessary to develop a high-permeability epoxy waterproof anticorrosive coating with low viscosity, high durability, excellent physical and chemical properties, and excellent waterproof and anticorrosive properties.
Disclosure of Invention
Based on the situation, the invention aims to provide a high-permeability epoxy waterproof anticorrosive paint.
The specific technical scheme is as follows:
a high-permeability epoxy waterproof anticorrosive paint comprises a component A and a component B;
the component A is mainly prepared from the following raw materials in parts by mass: 30-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 10-50 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 50-160 parts of sulfydryl modified curing agent, 10-30 parts of polyether amine curing agent, 1-20 parts of accelerator and 0-3 parts of coupling agent.
A preparation method of a high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
preparing materials according to the raw materials;
mixing and uniformly stirring epoxy resin, hydrogenated epoxy resin, polythiol modified epoxy resin and epoxy resin modifier to obtain a component A;
and (3) mixing and uniformly stirring the mercapto-modified curing agent, the polyether amine curing agent, the accelerator and the silane coupling agent to obtain the component B.
And mixing the component A and the component B according to the ratio of 1-2: 1 to obtain the high-permeability epoxy waterproof anticorrosive paint.
In some embodiments, the component A is mainly prepared from the following raw materials in parts by mass: 30-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 20-40 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 60-100 parts of sulfydryl modified curing agent, 10-30 parts of polyether amine curing agent, 1-10 parts of accelerator and 1-3 parts of coupling agent.
In some embodiments, the component A is mainly prepared from the following raw materials in parts by mass: 60-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 20-30 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 70-80 parts of sulfydryl modified curing agent, 20-30 parts of polyether amine curing agent, 5-10 parts of accelerator and 1-2 parts of coupling agent.
In some embodiments, the component A is mainly prepared from the following raw materials in parts by mass: 100 parts of epoxy resin, 20 parts of hydrogenated epoxy resin, 30 parts of polythiol modified epoxy resin and 30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 80 parts of sulfydryl modified curing agent, 20 parts of polyether amine curing agent, 10 parts of accelerator and 1 part of coupling agent.
In some of these embodiments, the polythiol-modified epoxy resin is a polythiol-modified aliphatic epoxy resin having the formula:
in some of these embodiments, the epoxy resin is a bisphenol a type epoxy resin; the hydrogenated epoxy resin is hydrogenated bisphenol A type epoxy resin; the epoxy resin modifier is one or two of polyethylene glycol diglycidyl ether and polypropylene glycol diglycidyl ether.
In some embodiments, the anti-foaming agent is BYK-A530, BYK-066N, BYK-special or two of the above materials.
In some of these embodiments, the polyetheramine curing agent is one or both of hensime D-230, T-403; the structural formula of the sulfydryl modified curing agent is as follows:
in some of the embodiments, the accelerator is one or more of 2-methylimidazole, 2-ethyl-4-methylimidazole and tris- (dimethylaminomethyl) phenol;
in some of these embodiments, the coupling agent is one or both of 3-glycidoxypropyltrimethoxysilane, N- (. beta. -aminoethyl) -a-aminopropyltrimethoxysilane.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the polythiol modified epoxy resin and the hydrogenated bisphenol A epoxy resin are added into the component A of the high-permeability epoxy waterproof anticorrosive paint (particularly aiming at the bisphenol A epoxy resin), and the polythiol modified epoxy resin can introduce C-S and S-S bonds into a main chain structure of a system due to a special chemical structure, so that the chemical bond strength of a solidified body after reaction is enhanced, and the chemical corrosion resistance and toughness of the epoxy resin are greatly improved; the bisphenol A epoxy resin is hydrogenated, the unsaturation degree of a system is reduced, the weather resistance of the epoxy resin is improved, and the component A with a specific formula is obtained. The component B uses a sulfydryl modified curing agent, the curing agent with a specific structure is a trifunctional long-chain curing agent, and the curing agent and epoxy resin are cured to form a solidification body with excellent toughness and mechanical strength. Particularly when the ratio of (1-2): when the epoxy resin waterproof anticorrosive paint is mixed according to the proportion of 1 part by mass, the crosslinking density of a solidified body formed by reaction is higher, the unsaturation degree is lower, the S-C and S-S contents of a main chain structure are high, and the toughness, the impact resistance, the corrosion resistance and the waterproof performance of the epoxy resin waterproof anticorrosive paint are improved in a breakthrough manner compared with those of the traditional epoxy resin waterproof anticorrosive paint.
Meanwhile, the high-permeability epoxy waterproof anticorrosive paint disclosed by the invention completely adopts active components, solves the problem that the existing product uses dangerous chemicals such as acetone, butanone and the like, and has very good environmental protection and safety in the production and construction processes.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the invention adopts the following raw materials:
bisphenol a type epoxy resin: nantong star synthetic materials, Inc., E51;
hydrogenated bisphenol a type epoxy resin: ADEKA, Inc., EP-4000;
polythiol-modified epoxy resin: EPS25, constant health technology development ltd, beijing;
epoxy resin modifier: new technology, Inc., Anhui, N.J., XY205, XY 207;
defoaming agent: german Bike, BYK-A530, BYK-066N, BYK-special;
mercapto group-modified curing agent: beijing tianjianzhike technology development ltd, G4;
polyether amine: hensman advanced materials, D-230, T-403;
coupling agents, namely, US Dow Corning company, Z-6040 and Z-6020.
Example 1
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of bisphenol A type epoxy resin, 5g of hydrogenated bisphenol A type epoxy resin, 10g of polythiol modified epoxy resin, 10g of polyethylene glycol diglycidyl and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
taking 50g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane, mixing and stirring uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 2:1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Example 2
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of bisphenol A type epoxy resin, 5g of hydrogenated bisphenol A type epoxy resin, 50g of polythiol modified epoxy resin, 25g of polyethylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
taking 50g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silicon, mixing and stirring uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 2:1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Example 3
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of bisphenol A type epoxy resin, 10g of hydrogenated bisphenol A type epoxy resin, 10g of polythiol modified epoxy resin, 15g of polyethylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
100g of sulfydryl modified curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol, and 1g of coupling agent 3-glycidoxypropyltrimethoxysilane are taken, mixed and stirred uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 2:1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Example 4
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of bisphenol A type epoxy resin, 10g of hydrogenated bisphenol A type epoxy resin, 30g of polythiol modified epoxy resin, 15g of polypropylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
100g of sulfydryl modified curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol, and 1g of coupling agent 3-glycidoxypropyltrimethoxysilane are taken, mixed and stirred uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 2:1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Example 5
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of epoxy resin of bisphenol A, 20g of epoxy resin of hydrogenated bisphenol A, 10g of epoxy resin modified by polythiol, 10g of polypropylene glycol diglycidyl ether and BYK-A5301 g, mixing and stirring uniformly to obtain a component A;
165g of sulfydryl modified curing agent, T-40310 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane are taken, mixed and stirred uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 1: 1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Example 6
The embodiment provides a high-permeability epoxy waterproof anticorrosive paint.
The preparation method of the high-permeability epoxy waterproof anticorrosive paint comprises the following steps:
taking 70g of bisphenol A type epoxy resin, 20g of hydrogenated bisphenol A type epoxy resin, 50g of polythiol modified epoxy resin, 25g of polypropylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
165g of sulfydryl modified curing agent, T-40310 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane are taken, mixed and stirred uniformly to obtain a component B;
when the concrete is subjected to waterproof and anticorrosive construction, the component A and the component B are mixed according to the mass fraction ratio of 1: 1, the coating with good waterproof and anticorrosion effects and mechanical properties can be obtained by uniformly stirring, can permeate into the concrete to be bonded with the concrete in an anchoring manner, plays the protection roles of waterproofing, anticorrosion and the like on the concrete, and has very ideal effect.
Comparative example 1
This comparative example is a comparative example to example 1, in which the formulation of the raw materials of the comparative example does not contain a polythiol-modified epoxy resin, and the specific formulation is:
70g of bisphenol A epoxy resin, 5g of hydrogenated bisphenol A epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g are mixed and stirred uniformly to obtain a component A.
And (3) mixing and uniformly stirring 50g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidoxypropyltrimethoxysilane to obtain a component B.
Comparative example 2
This comparative example is a comparative example to example 1, in which the formulation of the raw materials of this comparative example does not contain the mercapto-modified curing agent, and the specific formulation is:
70g of bisphenol A epoxy resin, 5g of hydrogenated bisphenol A epoxy resin, 10g of polythiol modified epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g are mixed and stirred uniformly to obtain a component A.
And mixing and uniformly stirring polyether amine curing agent T-40330 g, accelerator tris- (dimethylaminomethyl) phenol 5g and coupling agent 3-glycidyl propyl trimethoxy silane 1g to obtain a component B.
Comparative example 3
This comparative example is a comparative example of example 1, in which the formulation of the raw materials of this comparative example does not contain a polythiol-modified epoxy resin and a mercapto-modified curing agent, and the specific formulation is:
70g of bisphenol A epoxy resin, 5g of hydrogenated bisphenol A epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g are mixed and stirred uniformly to obtain a component A.
And mixing and uniformly stirring polyether amine curing agent T-40330 g, accelerator tris- (dimethylaminomethyl) phenol 5g and coupling agent 3-glycidyl propyl trimethoxy silane 1g to obtain a component B.
Comparative example 4
This comparative example is a comparative example to example 1, in that the raw material formulation of this comparative example has a polythiol-modified epoxy resin content outside the range defined in the present application, and the specific formulation is:
taking 70g of bisphenol A type epoxy resin, 5g of hydrogenated bisphenol A type epoxy resin, 100g of polythiol modified epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
taking 50g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane, mixing and stirring uniformly to obtain a component B;
comparative example 5
This comparative example is a comparative example to example 1, in contrast to the above, where the mercapto-modified curative content in the raw material formulation of this comparative example is outside the range defined in the present application, the specific formulation is:
taking 70g of bisphenol A type epoxy resin, 5g of hydrogenated bisphenol A type epoxy resin, 10g of polythiol modified epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
mixing and uniformly stirring 10g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane to obtain a component B;
comparative example 6
This comparative example is a comparative example to example 1, in contrast to this comparative example, where the polythiol-modified epoxy resin, mercapto-modified curing agent content of the raw material formulation is outside the ranges defined herein, the specific formulation is:
taking 70g of bisphenol A type epoxy resin, 5g of hydrogenated bisphenol A type epoxy resin, 100g of polythiol modified epoxy resin, 10g of polyethylene glycol diglycidyl ether and BYK-A5301 g, mixing and uniformly stirring to obtain a component A;
mixing and uniformly stirring 10g of sulfydryl modified curing agent, T-40330 g of polyether amine curing agent, 5g of accelerator tris- (dimethylaminomethyl) phenol and 1g of coupling agent 3-glycidyl propyl trimethoxy silane to obtain a component B;
performance testing
And (3) testing the compressive strength: testing according to GB/T2569-2008;
and (3) testing tensile strength: testing according to GB/T2568-2008;
the other properties listed in the table were tested according to GB/T16777-2008.
TABLE 1 results of the Performance test of the examples
Table 2 comparative performance test results
In summary, the polythiol-modified epoxy resin and the hydrogenated bisphenol a epoxy resin are added into the component a of the high-permeability epoxy waterproof anticorrosive coating (particularly for the component a containing bisphenol a epoxy resin), and the polythiol-modified epoxy resin and the hydrogenated bisphenol a epoxy resin interact with each other due to the special chemical structure and the reduction of the unsaturation degree of the component a by the hydrogenated bisphenol a epoxy resin to form a specific formula with three epoxy resins coexisting, so that the formula has breakthrough improvement in toughness, impact resistance, corrosion resistance and waterproof performance, and can realize at least 50% -200% improvement in corrosion resistance and waterproof performance compared with the traditional epoxy resin waterproof anticorrosive coating under the condition of adopting a mercapto-modified curing agent.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A high-permeability epoxy waterproof anticorrosive paint is characterized by comprising a component A and a component B;
the component A is mainly prepared from the following raw materials in parts by mass: 30-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 10-50 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 50-160 parts of sulfydryl modified curing agent, 10-30 parts of polyether amine curing agent, 1-20 parts of accelerator and 0-3 parts of coupling agent;
the polythiol modified epoxy resin is polythiol modified aliphatic epoxy resin, and the structural formula is as follows:
the epoxy resin is bisphenol A type epoxy resin; the hydrogenated epoxy resin is hydrogenated bisphenol A type epoxy resin; the epoxy resin modifier is one or two of polyethylene glycol diglycidyl ether and polypropylene glycol diglycidyl ether;
the polyether amine curing agent is one or two of Hensman D-230 and T-403; the structural formula of the sulfydryl modified curing agent is as follows:
2. the high-permeability epoxy waterproof anticorrosive paint as claimed in claim 1, wherein the component A is prepared from the following raw materials in parts by mass: 30-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 20-40 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 60-100 parts of sulfydryl modified curing agent, 10-30 parts of polyether amine curing agent, 1-10 parts of accelerator and 1-3 parts of coupling agent.
3. The high-permeability epoxy waterproof anticorrosive paint as claimed in claim 2, wherein the component A is prepared from the following raw materials in parts by mass: 60-100 parts of epoxy resin, 5-20 parts of hydrogenated epoxy resin, 20-30 parts of polythiol modified epoxy resin and 10-30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 70-80 parts of sulfydryl modified curing agent, 20-30 parts of polyether amine curing agent, 5-10 parts of accelerator and 1-2 parts of coupling agent.
4. The high-permeability epoxy waterproof anticorrosive paint as claimed in claim 3, wherein the component A is prepared from the following raw materials in parts by mass: 100 parts of epoxy resin, 20 parts of hydrogenated epoxy resin, 30 parts of polythiol modified epoxy resin and 30 parts of epoxy resin modifier; the component B is mainly prepared from the following raw materials in parts by mass: 80 parts of sulfydryl modified curing agent, 20 parts of polyether amine curing agent, 10 parts of accelerator and 1 part of coupling agent.
5. The high-permeability epoxy waterproof anticorrosive paint according to any one of claims 1 and 2 to 4, further comprising an antifoaming agent, wherein the antifoaming agent is one or two of BYK-A530, BYK-066N, BYK-special.
6. The high-permeability epoxy waterproof anticorrosive paint according to any one of claims 1 and 2 to 4, wherein the accelerator is one or more of 2-methylimidazole, 2-ethyl-4-methylimidazole and tris- (dimethylaminomethyl) phenol; the coupling agent is one or two of 3-glycidoxypropyltrimethoxysilane and N- (beta-aminoethyl) -alpha-aminopropyltrimethoxysilane.
7. A preparation method of a high-permeability epoxy waterproof anticorrosive paint is characterized by comprising the following steps:
the feedstock preparation of claim 1;
mixing and uniformly stirring epoxy resin, hydrogenated epoxy resin, polythiol modified epoxy resin and epoxy resin modifier to obtain a component A;
and (3) mixing and uniformly stirring the mercapto-modified curing agent, the polyether amine curing agent, the accelerator and the silane coupling agent to obtain the component B.
And mixing the component A and the component B according to the ratio of 1-2: 1 to obtain the high-permeability epoxy waterproof anticorrosive paint.
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| CN111057443A (en) * | 2019-12-31 | 2020-04-24 | 佛山市顺德区巴德富实业有限公司 | Aqueous heavy-duty anticorrosive epoxy resin emulsion and preparation method thereof |
| CN114806329A (en) * | 2022-04-06 | 2022-07-29 | 湘江涂料科技有限公司 | High-solid-content low-surface-treatment moisture-curing polysulfide epoxy coating |
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| CN102516912B (en) * | 2011-11-30 | 2013-09-04 | 安徽中铁工程材料科技有限公司 | Method for preparing composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage |
| CN102516915B (en) * | 2011-12-09 | 2013-10-23 | 安徽中铁工程材料科技有限公司 | Preparation method of modified cross-linked bisphenol A reinforcement adhesive for ballastless track mortar defect repair |
| DE102017105312A1 (en) * | 2017-03-13 | 2018-09-13 | Werner Klockemann | Thio-epoxy resins and process for their preparation |
| CN107573814A (en) * | 2017-09-29 | 2018-01-12 | 太仓市金锚化工有限公司 | A kind of anticorrosive paint with derusting water removal deoiling function |
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