CN112266701B - HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating and preparation method thereof - Google Patents
HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating and preparation method thereof Download PDFInfo
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention relates to the technical field of coatings, and provides a HEME high-performance epoxy modified elastic composite anticorrosion waterproof coating which comprises an A component epoxy resin modifier and a B component amine compound curing agent, wherein the A component epoxy resin modifier comprises, by mass, 30-40 parts of bisphenol A epoxy resin, 5-10 parts of epoxidized soybean oil, 5-10 parts of epoxy modified silicone oil, 5-10 parts of benzyl alcohol, 3-5 parts of polyfunctional glycidyl ether, 0.2-0.6 part of a silane coupling agent, 0.1-0.3 part of a defoaming agent, 40-50 parts of active silica fume, 5-10 parts of nano attapulgite and 1-2 parts of titanium carbide silica fume; the component B, namely the amine compound curing agent, comprises 5-10 parts of Mannich amine, 20-30 parts of polyamide, 50-70 parts of modified alicyclic amine and 3-5 parts of hydroxyl-terminated polyether. Through above-mentioned technical scheme, the problem that impact resistance pliability is poor, life is short in the prior art has been solved.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating and a preparation method thereof.
Background
With the great advance of the environmental protection industry in China and the wide application of various novel materials in national capital construction, real estate and various environmental protection industries, the demand of anticorrosion and waterproof materials is increasing, and according to the demands of different environments, the HEME high-performance epoxy modified elastic composite anticorrosion and waterproof coating is produced at the same time and is mainly applied to the surface anticorrosion and waterproof treatment of concrete structures and metal structures.
Compared with polyurethane coatings and acrylic coatings, the epoxy resin coatings have relatively late development in China, have excellent chemical resistance, especially alkali resistance, strong paint film adhesion, and better heat resistance and electrical insulation. However, bisphenol A epoxy resin coatings have poor weather resistance, cannot meet the use requirements of high strength in the aspects of easy pulverization and light loss, insufficient impact resistance, flexibility, wear resistance and the like outdoors, and have the defects of easy fragmentation, shedding, short service life and the like.
Disclosure of Invention
The invention provides a HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating and a preparation method thereof, and solves the problems of poor impact resistance flexibility and short service life in the related technology.
The technical scheme of the invention is as follows:
an HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises an A component epoxy resin modifier and a B component amine compound curing agent,
wherein, according to the mass portion,
the component A is an epoxy resin modifier composed of 30-40 parts of bisphenol A epoxy resin, 5-10 parts of epoxidized soybean oil, 5-10 parts of epoxy modified silicone oil, 5-10 parts of benzyl alcohol, 3-5 parts of polyfunctional glycidyl ether, 0.2-0.6 part of silane coupling agent, 0.1-0.3 part of defoaming agent, 40-50 parts of active silica fume, 5-10 parts of nano attapulgite and 1-2 parts of titanium carbide silica fume;
the component B, namely the amine compound curing agent, comprises 5-10 parts of Mannich amine, 20-30 parts of polyamide, 50-70 parts of modified alicyclic amine and 3-5 parts of hydroxyl-terminated polyether.
As a further technical scheme, the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises a component A epoxy resin modifier, 35 parts of bisphenol A epoxy resin, 7 parts of epoxy soybean oil, 7 parts of epoxy modified silicone oil, 7 parts of benzyl alcohol, 4 parts of polyfunctional glycidyl ether, 0.4 part of a silane coupling agent, 0.2 part of an antifoaming agent, 45 parts of active silica fume, 7 parts of nano attapulgite and 1.5 parts of titanium carbide silica fume.
As a further technical scheme, the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises 7 parts of Mannesmin, 25 parts of polyamide, 60 parts of modified alicyclic amine and 4 parts of hydroxyl-terminated polyether.
As a further technical scheme, the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises the following components in parts by weight, wherein the component A and the component B are 100: 40.
the invention also provides a preparation method of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating, which comprises the following steps:
s1, weighing each component for later use according to the formula of any one of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coatings;
s2, sequentially adding bisphenol A epoxy resin, epoxidized soybean oil, epoxy modified silicone oil, benzyl alcohol, polyfunctional glycidyl ether, a silane coupling agent and a defoaming agent into a stirring tank, stirring at a low speed of 70 revolutions per minute for 30 minutes, then adding active micro silicon powder, titanium carbide silicon powder and nano attapulgite, stirring at a high speed of 1200 revolutions per minute after stirring at a high speed for 90 minutes, and discharging to obtain a component A;
s3, sequentially adding Mannich amine, polyamide and modified alicyclic amine into a stirring tank, stirring for 50 minutes, then adding hydroxyl-terminated polyether, stirring for 30 minutes, and stirring at a low speed of 70 revolutions per minute to obtain a component B;
s4, mixing the component A and the component B according to the weight ratio of 100: 40 to obtain the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating.
The invention also provides an application of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating, which is formed by coating the surface of a concrete structure or a metal structure with different times according to design requirements and naturally solidifying and molding after coating.
The working principle and the beneficial effects of the invention are as follows:
1. the epoxy modified silicone oil is an organic silicon material formed by grafting polymethyl siloxane and epoxy alkane, has the characteristics of the polymethyl siloxane and the epoxy alkane, and can improve the internal stress of epoxy resin and enhance the flexibility of the epoxy resin by adding the epoxy modified silicone oil so that the epoxy resin is not brittle and does not crack.
2. The active silica fume is non-toxic, tasteless, pollution-free, hydrophobic and lipophilic high-purity white micro powder, and has the excellent performances of good temperature resistance, acid and alkali corrosion resistance, poor thermal conductivity, high insulation, low expansion, stable chemical performance, high hardness and the like. Under the action of silane coupling agent, the surface of active silica fume is modified, so that the original physical properties of the surface are changed, the surface binding power and the interface hydrophobicity of epoxy resin and active silica fume are effectively improved, and the mechanical property and the weather resistance of the coating are improved.
3. The nano attapulgite is a water-containing magnesium-rich aluminosilicate clay mineral with a layer chain structure, two silicon-oxygen tetrahedrons sandwich a layer of magnesium (aluminum) oxygen octahedron, the nano attapulgite is modified and introduced into a polymer, so that the advantages of good corrosion resistance, heat resistance, wear resistance, self-cleaning property and the like of the nano attapulgite are effectively combined with the characteristics of good polymer dispersibility, good solubility, easy film forming and the like, and the titanium silicon carbide is Mn+1AXnThe (n ═ 1,2,3) group ternary layered compound integrates the excellent properties of metal and ceramic, has excellent wear resistance and higher strength, is compounded with nano-attapulgite, and has synergistic effect with other components, so that the service life of the coating is prolonged, and the impact strength is higher.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
Example 1:
an HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises an A component epoxy resin modifier and a B component amine compound curing agent,
wherein, according to the mass portion,
the component A is composed of 30 parts of bisphenol A epoxy resin E51, 5 parts of epoxidized soybean oil, 5 parts of epoxy modified silicone oil, 5 parts of benzyl alcohol, 3 parts of polyfunctional glycidyl ether, 0.1 part of an organic silicon defoamer, 40 parts of active micro silicon powder, 5 parts of nano attapulgite, 1 part of titanium carbide silicon powder and 0.2 part of silane coupling agent WD 60;
the component B, namely the amine compound curing agent, comprises 5 parts of Mannich amine, 20 parts of polyamide, 50 parts of modified alicyclic amine WZH-155 and 3 parts of hydroxyl-terminated polyether.
The preparation method comprises the following steps:
s1, weighing the components according to the formula for later use;
s2, sequentially adding bisphenol A type epoxy resin E51, epoxidized soybean oil, epoxy modified silicone oil, benzyl alcohol, polyfunctional glycidyl ether, a silane coupling agent WD60 and an organic silicon defoamer into a stirring tank, stirring at a low speed of 70 revolutions per minute, then adding active micro silicon powder, titanium carbide silicon powder and nano attapulgite, stirring at a high speed of 1200 revolutions per minute after stirring at a high speed for 90 minutes, and discharging to obtain a component A;
s3, sequentially adding Mannich amine, polyamide and modified alicyclic amine WZH-155 into a stirring tank, stirring for 50 minutes, then adding hydroxyl-terminated polyether, stirring for 30 minutes, and stirring at a low speed of 70 revolutions per minute to obtain a component B;
s4, mixing the component A and the component B according to the weight ratio of 100: 40 to obtain the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating.
Example 2:
an HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises an A component epoxy resin modifier and a B component amine compound curing agent,
wherein, according to the mass portion,
the component A is composed of 35 parts of bisphenol A epoxy resin E51, 7 parts of epoxidized soybean oil, 7 parts of epoxy modified silicone oil, 7 parts of benzyl alcohol, 4 parts of polyfunctional glycidyl ether, 0.2 part of an organic silicon defoamer, 45 parts of active micro silicon powder, 7 parts of nano attapulgite, 1.5 parts of titanium carbide silicon powder and 0.4 part of silane coupling agent WD 60;
the component B, namely the amine compound curing agent, comprises 7 parts of Mannich amine, 25 parts of polyamide, 60 parts of modified alicyclic amine WZH-155 and 4 parts of hydroxyl-terminated polyether.
The preparation method is the same as that of example 1.
Example 3:
an HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises an A component epoxy resin modifier and a B component amine compound curing agent,
wherein, according to the mass portion,
the component A is composed of 40 parts of bisphenol A epoxy resin E51, 10 parts of epoxidized soybean oil, 10 parts of epoxy modified silicone oil, 10 parts of benzyl alcohol, 5 parts of polyfunctional glycidyl ether, 0.3 part of an organic silicon defoamer, 50 parts of active micro silicon powder, 10 parts of nano attapulgite, 2 parts of titanium carbide silicon powder and 0.6 part of silane coupling agent WD 60;
the component B, namely the amine compound curing agent, comprises 10 parts of Mannich amine, 30 parts of polyamide, 70 parts of modified alicyclic amine WZH-155 and 5 parts of hydroxyl-terminated polyether.
The preparation method is the same as that of example 1.
Comparative example 1:
other components and component contents are the same as those in example 2, and the technical feature is that epoxy-modified silicone oil is not added, unlike example 2.
Comparative example 2
The other components and the component contents are the same as those in example 2, and the technical difference from example 2 is that the active silica fume is not added.
Comparative example 3
The other components and the component contents are the same as those in the embodiment 2, and the technical difference from the embodiment 2 is that nano attapulgite and titanium carbide silicon powder are not added.
Comparative example 4
The other components and the component contents are the same as those in example 2, and the technical difference from example 2 is that titanium carbide silicon powder is not added.
The experimental data are shown in table 1:
TABLE 1 examples 1 to 3 and comparative examples 1 to 4 parts by weight of the respective components
| Group of | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Bisphenol A type epoxy resin E51 | 30 | 35 | 40 | 35 | 35 | 35 | 35 |
| Epoxidized soybean oil | 5 | 7 | 10 | 7 | 7 | 7 | 7 |
| Epoxy modified silicone oil | 5 | 7 | 10 | — | 7 | 7 | 7 |
| Benzyl alcohol | 5 | 7 | 10 | 7 | 7 | 7 | 7 |
| Polyfunctional glycidyl ether | 3 | 4 | 5 | 4 | 4 | 4 | 4 |
| Silane coupling agent WD60 | 0.2 | 0.4 | 0.6 | 0.4 | 0.4 | 0.4 | 0.4 |
| Organic silicon defoaming agent | 0.1 | 0.2 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 |
| Active micro silicon powder | 40 | 45 | 50 | 45 | — | 45 | 45 |
| Titanium carbide silicon powder | 1 | 1.5 | 2 | 1.5 | 1.5 | — | — |
| Nano attapulgite | 5 | 7 | 10 | 7 | 7 | — | 7 |
| Mannich amines | 5 | 7 | 10 | 7 | 7 | 7 | 7 |
| Polyamide | 20 | 25 | 30 | 25 | 25 | 25 | 25 |
| Modified alicyclic amine WZH-155 | 50 | 60 | 70 | 60 | 60 | 60 | 60 |
| Hydroxyl terminated polyethers | 3 | 4 | 5 | 4 | 4 | 4 | 4 |
Note: to be free of this item
The performance test of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating in the embodiments 1-3 and the comparative examples 1-4 is carried out according to the GB/T27806-:
table 2 test results of the Cold-coating type modified epoxy road anti-skid coatings in examples 1 to 3 and comparative examples 1 to 4
As can be seen from the data in the table, the road surface anti-skid coatings prepared in the embodiments 1 to 3 meet the requirements of the road surface anti-skid coatings, have excellent performance, and are remarkably improved in strength, artificial climate aging resistance and the like, so that the service life of the coatings is prolonged, and the problems of poor impact resistance flexibility and short service life of the coatings in the prior art are solved. The raw material proportion and the preparation method adopted in the embodiment 2 are relatively better technical schemes of the invention, and the prepared coating has the best performance.
Comparative example 1 compared with example 2 of the present invention, the impact resistance of the coating prepared in example 2 was improved from 35 to 51, which shows that the addition of epoxy silicone oil in the present invention, in cooperation with other components, significantly improves the impact resistance flexibility of the coating.
Comparative example 2 compared with example 2 of the present invention, the impact resistance of the coating prepared in example 2 is improved from 44 to 51, and the artificially accelerated weather resistance is improved, which shows that the addition of the active silica powder in the present invention, which is synergistic with other components, significantly improves the impact resistance of the coating, and simultaneously increases the service life of the coating.
Compared with the example 2 of the invention, the impact resistance of the coating prepared in the example 2 is improved from 41 to 51, and the artificially accelerated weather resistance is improved, which shows that the service life and the impact resistance flexibility of the coating are obviously improved by adding the nano attapulgite and the titanium carbide silicon powder to the coating and mutually cooperating with other components.
Compared with the comparative example 4 and the example 2 of the invention, the impact resistance of the coating prepared in the example 2 is improved from 43 to 51, and the artificially accelerated weather resistance is improved, compared with the comparative example 3, the impact resistance of the coating prepared in the comparative example 4 is improved from 41 to 43, and the artificially accelerated weather resistance is improved, which shows that the titanium carbide silicon powder is added in the invention and compounded with the nano attapulgite, so that the wear resistance and the strength of the coating are improved.
In conclusion, the invention can solve the technical problems of short service life and poor impact resistance flexibility of the bisphenol A epoxy resin coating in the prior art, and has the following prominent substantive characteristics and remarkable progress compared with the prior art:
1. the epoxy modified silicone oil is an organic silicon material formed by grafting polymethyl siloxane and epoxy alkane, has the characteristics of the polymethyl siloxane and the epoxy alkane, and can improve the internal stress of epoxy resin and enhance the flexibility of the epoxy resin by adding the epoxy modified silicone oil so that the epoxy resin is not brittle and does not crack.
2. The active silica fume is non-toxic, tasteless, pollution-free, hydrophobic and lipophilic high-purity white micro powder, and has the excellent performances of good temperature resistance, acid and alkali corrosion resistance, poor thermal conductivity, high insulation, low expansion, stable chemical performance, high hardness and the like. Under the action of silane coupling agent, the surface of active silica fume is modified to change the original physical property of the surface, raise the surface adhesion and interface hydrophobicity of epoxy resin and active silica fume and improve the mechanical performance and weather resistance of the paint
3. According to the invention, the addition of the nano attapulgite and the titanium carbide silicon powder obviously improves the corrosion resistance and wear resistance of the anti-skid coating, the nano attapulgite is a water-containing magnesium-rich aluminosilicate clay mineral with a layer chain structure, a layer of magnesium (aluminum) oxygen octahedron is sandwiched between two layers of silicon-oxygen tetrahedrons, the nano attapulgite is modified and introduced into a polymer, the advantages of the nano attapulgite such as corrosion resistance, heat resistance, wear resistance and self-cleaning property are effectively combined with the characteristics of good polymer dispersibility, good solubility, easy film forming and the like, and the titanium carbide silicon is Mn+1AXnA ternary layered compound of the (n-1, 2,3) group, which combines the excellent properties of metals and ceramics and has excellent wear resistanceThe coating has higher strength, is compounded with the nano attapulgite and has synergistic effect with other components, so that the service life of the coating is prolonged, and the impact strength is higher.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating is characterized by comprising an epoxy resin modifier A and an amine compound curing agent B,
wherein, according to the mass portion,
the component A is composed of 35 parts of bisphenol A epoxy resin, 7 parts of epoxidized soybean oil, 7 parts of epoxy modified silicone oil, 7 parts of benzyl alcohol, 4 parts of polyfunctional glycidyl ether, 0.4 part of silane coupling agent, 0.2 part of defoaming agent, 45 parts of active micro silicon powder, 7 parts of nano attapulgite and 1.5 parts of titanium carbide silicon powder;
the component B, namely the amine compound curing agent, comprises 7 parts of Mannich amine, 25 parts of polyamide, 60 parts of modified alicyclic amine and 4 parts of hydroxyl-terminated polyether;
the preparation method of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating comprises the following steps:
s1, weighing each component for later use according to the formula of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating;
s2, sequentially adding bisphenol A epoxy resin, epoxidized soybean oil, epoxy modified silicone oil, benzyl alcohol, polyfunctional glycidyl ether, a silane coupling agent and a defoaming agent into a stirring tank, stirring at a low speed of 70 revolutions per minute for 30 minutes, then adding active micro silicon powder, titanium carbide silicon powder and nano attapulgite, stirring at a high speed of 1200 revolutions per minute after stirring at a high speed for 90 minutes, and discharging to obtain a component A;
s3, sequentially adding Mannich amine, polyamide and modified alicyclic amine into a stirring tank, stirring for 50 minutes, then adding hydroxyl-terminated polyether, stirring for 30 minutes, and stirring at a low speed of 70 revolutions per minute to obtain a component B;
s4, mixing the component A and the component B according to the weight ratio of 100: 40 to obtain the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating.
2. A preparation method of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating is characterized by comprising the following steps:
s1, weighing each component for later use according to the formula of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating disclosed in claim 1;
s2, sequentially adding bisphenol A epoxy resin, epoxidized soybean oil, epoxy modified silicone oil, benzyl alcohol, polyfunctional glycidyl ether, a silane coupling agent and a defoaming agent into a stirring tank, stirring at a low speed of 70 revolutions per minute for 30 minutes, then adding active micro silicon powder, titanium carbide silicon powder and nano attapulgite, stirring at a high speed of 1200 revolutions per minute after stirring at a high speed for 90 minutes, and discharging to obtain a component A;
s3, sequentially adding Mannich amine, polyamide and modified alicyclic amine into a stirring tank, stirring for 50 minutes, then adding hydroxyl-terminated polyether, stirring for 30 minutes, and stirring at a low speed of 70 revolutions per minute to obtain a component B;
s4, mixing the component A and the component B according to the weight ratio of 100: 40 to obtain the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating.
3. The application of the HEME high-performance epoxy modified elastic composite anticorrosive waterproof coating as claimed in claim 1, which is characterized in that the coating is coated on the surface of a concrete structure or a metal structure, and the coating is coated for different times according to design requirements and then naturally solidified and formed after the coating is finished.
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| CN105733412A (en) * | 2016-05-12 | 2016-07-06 | 武汉赫斯特涂层材料股份有限公司 | Epoxy polysiloxane anticorrosive paint |
| JP2018003005A (en) * | 2016-05-25 | 2018-01-11 | 関西ペイント株式会社 | Ordinary temperature curable weather resistant coating composition |
| CN108546467A (en) * | 2018-04-19 | 2018-09-18 | 厦门富思特新材料科技有限公司 | A kind of high hardness wear-resisting aqueous wooden ware solid color enamel and preparation method thereof |
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