Corrosion-resistant high-strength waterborne epoxy resin

Abstract

The invention belongs to the technical field of water-borne epoxy resin, and particularly relates to corrosion-resistant high-strength water-borne epoxy resin. The raw materials comprise the following components in parts by weight: 15-20 parts of a water-borne epoxy resin emulsion, 4-8 parts of a modified acrylic emulsion, 4-8 parts of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 8-12 parts of polyvinyl alcohol, 4-6 parts of silica sol, 5-10 parts of salicylic acid, 6-8 parts of benzoic acid, 2-4 parts of rare earth aluminate, 3-5 parts of phenolic epoxy resin, 2-6 parts of nano titanium dioxide and 4-6 parts of a defoaming agent. According to the water-borne epoxy resin disclosed by the invention, the preservative is added, so that the corrosion resistance of the water-borne epoxy resin can be greatly improved, the water-borne epoxy resin can further have high-strength corrosion resistance, and the application range of the preservative can be widened.

Description

Technical Field

[0001] The invention relates to the technical field of waterborne epoxy resins, in particular to a corrosion-resistant high-strength waterborne epoxy resin. Background Art

[0002] Waterborne epoxy resin is a special epoxy resin that is dispersed in the aqueous phase in the form of particles, droplets or colloids to form an emulsion, aqueous dispersion or aqueous solution. The characteristic of this resin is that the epoxy resin molecule contains hydrophilic polyoxyethylene groups, which makes it self-dispersible in water without the need for an external emulsifier. The preparation of waterborne epoxy resin usually involves the introduction of polyoxyethylene and polyoxypropylene segments into the epoxy resin chain. These hydrophilic segments not only enhance the water resistance of the coating film, but also provide an increase in the molecular weight of the cross-linked cured network chain and a decrease in the cross-linking density, thereby bringing about a certain toughening effect. In addition, the film-forming mechanism of waterborne epoxy resin is different from that of general polymer emulsions such as acrylic emulsions. It is a multiphase system in which epoxy resin and curing agent are dispersed in the aqueous phase in the form of a dispersed phase. The cross-linking and curing process is a cross-linking reaction process of mutual penetration and internal diffusion between particles during the evaporation of water. This characteristic gives waterborne epoxy resin a unique advantage in application, especially in situations where high water resistance and toughening effects are required.

[0003] However, the existing waterborne epoxy resin has low corrosion resistance, which will affect the use range of the waterborne epoxy resin, such as being difficult to use in a corrosive environment. Therefore, a corrosion-resistant and high-strength waterborne epoxy resin is invented. Summary of the invention

[0004] In view of the above problems and / or the problems existing in the existing corrosion-resistant high-strength water-based epoxy resin, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a corrosion-resistant high-strength water-based epoxy resin that can solve the above-mentioned existing problems.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A corrosion-resistant high-strength water-based epoxy resin comprises raw materials, which include, by weight, 15-20 parts of water-based epoxy resin emulsion, 4-8 parts of modified acrylic emulsion, 4-8 parts of dodecyl alcohol ester, 8-12 parts of polyvinyl alcohol, 4-6 parts of silica sol, 5-10 parts of salicylic acid, 6-8 parts of benzoic acid, 2-4 parts of rare earth aluminate, 3-5 parts of phenolic epoxy resin, 2-6 parts of nano titanium dioxide, 4-6 parts of defoamer, 4-8 parts of wetting agent, 4-6 parts of dispersant, 6-12 parts of preservative, and 4-10 parts of temperature-resistant agent.

[0008] As a preferred embodiment of the corrosion-resistant high-strength water-based epoxy resin described in the present invention, the raw materials of the defoaming agent include organic siloxane, polyether, silicon and ether grafting, amine, natural oil, corn oil, and fatty alcohol.

[0009] As a preferred embodiment of the corrosion-resistant high-strength waterborne epoxy resin of the present invention, the preparation steps of the defoaming agent are as follows:

[0010] Process 1: Mixing organic siloxane and polyether;

[0011] Process 2: Mixing silicon and ether grafting and containing amine;

[0012] Process 3: Mixing natural oils, corn oil and fatty alcohol;

[0013] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a defoaming agent.

[0014] As a preferred embodiment of the corrosion-resistant high-strength water-based epoxy resin described in the present invention, the raw materials of the wetting agent include: saponin powder, tea dregs, sodium carboxymethyl starch, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate, and pulverizing powder.

[0015] As a preferred embodiment of the corrosion-resistant high-strength water-based epoxy resin of the present invention, the preparation steps of the wetting agent are as follows:

[0016] Process 1: Mixing sapodilla powder, tea dregs and sodium starch glycolate;

[0017] Process 2: mixing hydroxypropyl methylcellulose and sodium dodecylbenzene sulfonate;

[0018] Process 3: Mix the pull-apart powder, the mixture in process 1 and the mixture in process 2 to obtain a wetting agent.

[0019] As a preferred embodiment of the corrosion-resistant and high-strength water-based epoxy resin described in the present invention, the raw materials of the dispersant include gelatin, pectin, starch, gum arabic, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, vinyl alcohol copolymer, and styrene-maleic anhydride copolymer.

[0020] As a preferred embodiment of the corrosion-resistant high-strength waterborne epoxy resin of the present invention, the preparation steps of the dispersant are as follows:

[0021] Process 1: Mix gelatin, pectin and starch;

[0022] Process 2: mixing gum arabic, methyl cellulose and carboxymethyl cellulose;

[0023] Process 3: mixing polyvinyl alcohol and vinyl alcohol copolymer;

[0024] Process 4: The styrene-maleic anhydride copolymer, the mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a dispersant.

[0025] As a preferred embodiment of the corrosion-resistant high-strength water-based epoxy resin of the present invention, the raw materials of the preservative include sodium benzoate, sorbic acid, sodium salt, sulfur dioxide, furan resin, phenolic resin, polyurethane, and unsaturated polyester;

[0026] The preparation steps of the preservative are as follows:

[0027] Process 1: Mixing sodium benzoate, sorbic acid and sodium salt;

[0028] Process 2: mixing sulfur dioxide, furan resin and phenolic resin;

[0029] Process 3: Mixing polyurethane and unsaturated polyester;

[0030] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a preservative.

[0031] As a preferred embodiment of the corrosion-resistant high-strength water-based epoxy resin described in the present invention, the raw materials of the temperature-resistant agent include: polyimide, polyetheretherketone, ceramic fiber, phenolic epoxy resin, graphene, and alumina ceramics;

[0032] Process 1: mixing polyimide, polyetheretherketone and ceramic fiber;

[0033] Process 2: Mixing phenolic epoxy resin, graphene and alumina ceramic;

[0034] Process 3: Mix the mixture in process 1 and the mixture in process 2 to obtain a temperature-resistant agent.

[0035] As a preferred embodiment of the corrosion-resistant high-strength waterborne epoxy resin described in the present invention, it also includes a preparation method, and the specific steps are as follows:

[0036] Step 1: mixing waterborne epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol and silica sol;

[0037] Step 2: mixing salicylic acid, benzoic acid, rare earth aluminate and phenolic epoxy resin;

[0038] Step 3: Mixing nano titanium dioxide, defoaming agent and wetting agent;

[0039] Step 4: Mix the dispersant, preservative and temperature resistant agent;

[0040] Step 5: Mix the mixture in step 1, the mixture in step 2, the mixture in step 3 and the mixture in step 4. After mixing, heat the mixture to a liquid state to obtain a water-based epoxy resin.

[0041] Compared with existing technologies:

[0042] By adding preservatives, the anti-corrosion performance of waterborne epoxy resin can be greatly improved, thereby enabling the waterborne epoxy resin to have high-strength anti-corrosion performance, thereby expanding the application range of the preservatives. In addition, by adding a heat-resistant agent, the heat resistance of waterborne epoxy resin can be improved, and by improving the heat resistance of waterborne epoxy resin, the waterborne epoxy resin can be used in a high-temperature environment. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below.

[0044] Embodiment 1:

[0045] The invention comprises raw materials, which include, by weight: 15 parts of waterborne epoxy resin emulsion, 4 parts of modified acrylic emulsion, 4 parts of dodecyl alcohol ester, 8 parts of polyvinyl alcohol, 4 parts of silica sol, 5 parts of salicylic acid, 6 parts of benzoic acid, 2 parts of rare earth aluminate, 3 parts of phenolic epoxy resin, 2 parts of nano titanium dioxide, 4 parts of defoaming agent, 4 parts of wetting agent, 4 parts of dispersant, 6 parts of preservative and 4 parts of temperature resistance agent.

[0046] The raw materials of defoamers include: organic siloxanes, polyethers, silicon and ether grafts, amines, natural oils and fats, corn oil, and fatty alcohols;

[0047] The preparation steps of defoamer are as follows:

[0048] Process 1: Mixing organic siloxane and polyether;

[0049] Process 2: Mixing silicon and ether grafting and containing amine;

[0050] Process 3: Mixing natural oils, corn oil and fatty alcohol;

[0051] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a defoaming agent.

[0052] The raw materials of the wetting agent include: saponin powder, tea dregs, sodium carboxymethyl starch, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate, and lakai powder;

[0053] The preparation steps of the wetting agent are as follows:

[0054] Process 1: Mixing sapodilla powder, tea dregs and sodium starch glycolate;

[0055] Process 2: mixing hydroxypropyl methylcellulose and sodium dodecylbenzene sulfonate;

[0056] Process 3: Mix the pull-apart powder, the mixture in process 1 and the mixture in process 2 to obtain a wetting agent.

[0057] The raw materials of the dispersant include: gelatin, pectin, starch, gum arabic, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, vinyl alcohol copolymer, styrene-maleic anhydride copolymer;

[0058] The preparation steps of the dispersant are as follows:

[0059] Process 1: Mix gelatin, pectin and starch;

[0060] Process 2: mixing gum arabic, methyl cellulose and carboxymethyl cellulose;

[0061] Process 3: mixing polyvinyl alcohol and vinyl alcohol copolymer;

[0062] Process 4: The styrene-maleic anhydride copolymer, the mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a dispersant.

[0063] The raw materials of preservatives include: sodium benzoate, sorbic acid, sodium salt, sulfur dioxide, furan resin, phenolic resin, polyurethane, unsaturated polyester;

[0064] The steps for preparing the preservative are as follows:

[0065] Process 1: Mixing sodium benzoate, sorbic acid and sodium salt;

[0066] Process 2: mixing sulfur dioxide, furan resin and phenolic resin;

[0067] Process 3: mixing polyurethane and unsaturated polyester;

[0068] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a preservative.

[0069] The raw materials of temperature resistant agents include: polyimide, polyetheretherketone, ceramic fiber, phenolic epoxy resin, graphene, and alumina ceramics;

[0070] Process 1: mixing polyimide, polyetheretherketone and ceramic fiber;

[0071] Process 2: Mixing phenolic epoxy resin, graphene and alumina ceramic;

[0072] Process 3: Mix the mixture in process 1 and the mixture in process 2 to obtain a temperature-resistant agent.

[0073] Also included is a preparation method, the specific steps are as follows:

[0074] Step 1: mixing waterborne epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol and silica sol;

[0075] Step 2: mixing salicylic acid, benzoic acid, rare earth aluminate and phenolic epoxy resin;

[0076] Step 3: Mixing nano titanium dioxide, defoaming agent and wetting agent;

[0077] Step 4: Mix the dispersant, preservative and temperature resistant agent;

[0078] Step 5: Mix the mixture in step 1, the mixture in step 2, the mixture in step 3 and the mixture in step 4. After mixing, heat the mixture to a liquid state to obtain a water-based epoxy resin.

[0079] Embodiment 2:

[0080] The invention comprises raw materials, which include, by weight, 17.5 parts of waterborne epoxy resin emulsion, 6 parts of modified acrylic emulsion, 6 parts of dodecyl alcohol ester, 10 parts of polyvinyl alcohol, 5 parts of silica sol, 7.5 parts of salicylic acid, 7 parts of benzoic acid, 3 parts of rare earth aluminate, 4 parts of phenolic epoxy resin, 4 parts of nano titanium dioxide, 5 parts of defoaming agent, 6 parts of wetting agent, 5 parts of dispersant, 9 parts of preservative and 7 parts of temperature resistance agent.

[0081] The raw materials of defoamers include: organic siloxanes, polyethers, silicon and ether grafts, amines, natural oils and fats, corn oil, and fatty alcohols;

[0082] The preparation steps of defoamer are as follows:

[0083] Process 1: Mixing organic siloxane and polyether;

[0084] Process 2: Mixing silicon and ether grafting and containing amine;

[0085] Process 3: Mixing natural oils, corn oil and fatty alcohol;

[0086] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a defoaming agent.

[0087] The raw materials of the wetting agent include: saponin powder, tea dregs, sodium carboxymethyl starch, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate, and lakai powder;

[0088] The preparation steps of the wetting agent are as follows:

[0089] Process 1: Mixing sapodilla powder, tea dregs and sodium starch glycolate;

[0090] Process 2: mixing hydroxypropyl methylcellulose and sodium dodecylbenzene sulfonate;

[0091] Process 3: Mix the pull-apart powder, the mixture in process 1 and the mixture in process 2 to obtain a wetting agent.

[0092] The raw materials of the dispersant include: gelatin, pectin, starch, gum arabic, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, vinyl alcohol copolymer, styrene-maleic anhydride copolymer;

[0093] The preparation steps of the dispersant are as follows:

[0094] Process 1: Mix gelatin, pectin and starch;

[0095] Process 2: mixing gum arabic, methyl cellulose and carboxymethyl cellulose;

[0096] Process 3: mixing polyvinyl alcohol and vinyl alcohol copolymer;

[0097] Process 4: The styrene-maleic anhydride copolymer, the mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a dispersant.

[0098] The raw materials of preservatives include: sodium benzoate, sorbic acid, sodium salt, sulfur dioxide, furan resin, phenolic resin, polyurethane, unsaturated polyester;

[0099] The steps for preparing the preservative are as follows:

[0100] Process 1: Mixing sodium benzoate, sorbic acid and sodium salt;

[0101] Process 2: mixing sulfur dioxide, furan resin and phenolic resin;

[0102] Process 3: Mixing polyurethane and unsaturated polyester;

[0103] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a preservative.

[0104] The raw materials of temperature resistant agents include: polyimide, polyetheretherketone, ceramic fiber, phenolic epoxy resin, graphene, and alumina ceramics;

[0105] Process 1: mixing polyimide, polyetheretherketone and ceramic fiber;

[0106] Process 2: Mixing phenolic epoxy resin, graphene and alumina ceramic;

[0107] Process 3: Mix the mixture in process 1 and the mixture in process 2 to obtain a temperature-resistant agent.

[0108] Also included is a preparation method, the specific steps are as follows:

[0109] Step 1: mixing waterborne epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol and silica sol;

[0110] Step 2: mixing salicylic acid, benzoic acid, rare earth aluminate and phenolic epoxy resin;

[0111] Step 3: Mixing nano titanium dioxide, defoaming agent and wetting agent;

[0112] Step 4: Mix the dispersant, preservative and temperature resistant agent;

[0113] Step 5: Mix the mixture in step 1, the mixture in step 2, the mixture in step 3 and the mixture in step 4. After mixing, heat the mixture to a liquid state to obtain a water-based epoxy resin.

[0114] Embodiment 3:

[0115] The invention comprises raw materials, which include, by weight, 20 parts of water-based epoxy resin emulsion, 8 parts of modified acrylic emulsion, 8 parts of dodecyl alcohol ester, 12 parts of polyvinyl alcohol, 6 parts of silica sol, 10 parts of salicylic acid, 8 parts of benzoic acid, 4 parts of rare earth aluminate, 5 parts of phenolic epoxy resin, 6 parts of nano titanium dioxide, 6 parts of defoaming agent, 8 parts of wetting agent, 6 parts of dispersant, 12 parts of preservative and 10 parts of temperature resistance agent.

[0116] The raw materials of defoamers include: organic siloxanes, polyethers, silicon and ether grafts, amines, natural oils and fats, corn oil, and fatty alcohols;

[0117] The preparation steps of defoamer are as follows:

[0118] Process 1: Mixing organic siloxane and polyether;

[0119] Process 2: Mixing silicon and ether grafting and containing amine;

[0120] Process 3: Mixing natural oils, corn oil and fatty alcohol;

[0121] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a defoaming agent.

[0122] The raw materials of the wetting agent include: saponin powder, tea dregs, sodium carboxymethyl starch, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate, and lakai powder;

[0123] The preparation steps of the wetting agent are as follows:

[0124] Process 1: Mixing sapodilla powder, tea dregs and sodium starch glycolate;

[0125] Process 2: mixing hydroxypropyl methylcellulose and sodium dodecylbenzene sulfonate;

[0126] Process 3: Mix the pull-apart powder, the mixture in process 1 and the mixture in process 2 to obtain a wetting agent.

[0127] The raw materials of the dispersant include: gelatin, pectin, starch, gum arabic, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, vinyl alcohol copolymer, styrene-maleic anhydride copolymer;

[0128] The preparation steps of the dispersant are as follows:

[0129] Process 1: Mix gelatin, pectin and starch;

[0130] Process 2: mixing gum arabic, methyl cellulose and carboxymethyl cellulose;

[0131] Process 3: mixing polyvinyl alcohol and vinyl alcohol copolymer;

[0132] Process 4: The styrene-maleic anhydride copolymer, the mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a dispersant.

[0133] The raw materials of preservatives include: sodium benzoate, sorbic acid, sodium salt, sulfur dioxide, furan resin, phenolic resin, polyurethane, unsaturated polyester;

[0134] The steps for preparing the preservative are as follows:

[0135] Process 1: Mixing sodium benzoate, sorbic acid and sodium salt;

[0136] Process 2: mixing sulfur dioxide, furan resin and phenolic resin;

[0137] Process 3: mixing polyurethane and unsaturated polyester;

[0138] Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a preservative.

[0139] The raw materials of temperature resistant agents include: polyimide, polyetheretherketone, ceramic fiber, phenolic epoxy resin, graphene, and alumina ceramics;

[0140] Process 1: mixing polyimide, polyetheretherketone and ceramic fiber;

[0141] Process 2: Mixing phenolic epoxy resin, graphene and alumina ceramic;

[0142] Process 3: Mix the mixture in process 1 and the mixture in process 2 to obtain a temperature-resistant agent.

[0143] Also included is a preparation method, the specific steps are as follows:

[0144] Step 1: mixing waterborne epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol and silica sol;

[0145] Step 2: mixing salicylic acid, benzoic acid, rare earth aluminate and phenolic epoxy resin;

[0146] Step 3: Mixing nano titanium dioxide, defoaming agent and wetting agent;

[0147] Step 4: Mix the dispersant, preservative and temperature resistant agent;

[0148] Step 5: Mix the mixture in step 1, the mixture in step 2, the mixture in step 3 and the mixture in step 4. After mixing, heat the mixture to a liquid state to obtain a water-based epoxy resin.

[0149] The waterborne epoxy resins prepared in the above Examples 1-3 were compared to obtain the following data:

[0150] Example 1 Example 2 Example 3 Corrosion resistance grade Sa2 Sa2.5 Sa2 Temperature resistance 210℃ 308℃ 267℃

[0151] It can be seen from the above table that the water-based epoxy resins prepared in Examples 1-3 have good performance in terms of anti-corrosion grade and temperature resistance. However, the different proportions of water-based epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol, silica sol, salicylic acid, benzoic acid, rare earth aluminate, phenolic epoxy resin, nano titanium dioxide, defoamer, wetting agent, dispersant, preservative and temperature resistance agent result in different effects of water-based epoxy resin in terms of anti-corrosion grade and temperature resistance. After use, Example 2 has the best effect.

[0152] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A corrosion-resistant high-strength water-based epoxy resin, comprising raw materials, It is characterized in that The raw materials include, by weight: 15-20 parts of water-based epoxy resin emulsion, 4-8 parts of modified acrylic emulsion, 4-8 parts of dodecyl alcohol ester, 8-12 parts of polyvinyl alcohol, 4-6 parts of silica sol, 5-10 parts of salicylic acid, 6-8 parts of benzoic acid, 2-4 parts of rare earth aluminate, 3-5 parts of phenolic epoxy resin, 2-6 parts of nano titanium dioxide, 4-6 parts of defoaming agent, 4-8 parts of wetting agent, 4-6 parts of dispersant, 6-12 parts of preservative, and 4-10 parts of temperature resistance agent.

2. A corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that The raw materials of the defoamer include organic siloxane, polyether, silicon and ether grafting, amine, natural oil, corn oil and fatty alcohol.

3. A corrosion-resistant high-strength water-based epoxy resin according to claim 2, It is characterized in that The preparation steps of the defoamer are as follows: Process 1: Mixing organic siloxane and polyether; Process 2: Mixing silicon and ether grafting and containing amine; Process 3: Mixing natural oils, corn oil and fatty alcohol; Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a defoaming agent.

4. A corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that The raw materials of the wetting agent include: saponin powder, tea dregs, sodium carboxymethyl starch, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate and lakai powder.

5. A corrosion-resistant high-strength water-based epoxy resin according to claim 4, It is characterized in that The preparation steps of the wetting agent are as follows: Process 1: Mixing sapodilla powder, tea dregs and sodium carboxymethyl starch; Process 2: mixing hydroxypropyl methylcellulose and sodium dodecylbenzene sulfonate; Process 3: Mix the pull-apart powder, the mixture in process 1 and the mixture in process 2 to obtain a wetting agent.

6. A corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that The raw materials of the dispersant include: gelatin, pectin, starch, gum arabic, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, vinyl alcohol copolymer, styrene-maleic anhydride copolymer.

7. A corrosion-resistant high-strength water-based epoxy resin according to claim 6, It is characterized in that The preparation steps of the dispersant are as follows: Process 1: Mix gelatin, pectin and starch; Process 2: mixing gum arabic, methyl cellulose and carboxymethyl cellulose; Process 3: mixing polyvinyl alcohol and vinyl alcohol copolymer; Process 4: The styrene-maleic anhydride copolymer, the mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a dispersant.

8. The corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that The raw materials of the preservative include: sodium benzoate, sorbic acid, sodium salt, sulfur dioxide, furan resin, phenolic resin, polyurethane, unsaturated polyester; The preparation steps of the preservative are as follows: Process 1: Mixing sodium benzoate, sorbic acid and sodium salt; Process 2: mixing sulfur dioxide, furan resin and phenolic resin; Process 3: Mixing polyurethane and unsaturated polyester; Process 4: The mixture in process 1, the mixture in process 2 and the mixture in process 3 are mixed to obtain a preservative.

9. The corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that The raw materials of the temperature-resistant agent include: polyimide, polyetheretherketone, ceramic fiber, phenolic epoxy resin, graphene, and alumina ceramics; Process 1: mixing polyimide, polyetheretherketone and ceramic fiber; Process 2: Mixing phenolic epoxy resin, graphene and alumina ceramic; Process 3: Mix the mixture in process 1 and the mixture in process 2 to obtain a temperature-resistant agent.

10. The corrosion-resistant high-strength water-based epoxy resin according to claim 1, It is characterized in that Also included is a preparation method, the specific steps are as follows: Step 1: mixing waterborne epoxy resin emulsion, modified acrylic emulsion, dodecyl alcohol ester, polyvinyl alcohol and silica sol; Step 2: mixing salicylic acid, benzoic acid, rare earth aluminate and phenolic epoxy resin; Step 3: Mixing nano titanium dioxide, defoaming agent and wetting agent; Step 4: Mix the dispersant, preservative and temperature resistant agent; Step 5: Mix the mixture in step 1, the mixture in step 2, the mixture in step 3 and the mixture in step 4. After mixing, heat the mixture to a liquid state to obtain a water-based epoxy resin.