CN115820083A - Solvent-free epoxy self-leveling coating and preparation method thereof - Google Patents
Solvent-free epoxy self-leveling coating and preparation method thereof Download PDFInfo
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- CN115820083A CN115820083A CN202211517959.3A CN202211517959A CN115820083A CN 115820083 A CN115820083 A CN 115820083A CN 202211517959 A CN202211517959 A CN 202211517959A CN 115820083 A CN115820083 A CN 115820083A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to the field of paint preparation, and particularly discloses a solvent-free epoxy self-leveling paint which comprises a raw material component A, a component B and a component C in parts by weight as follows: the component A comprises the following raw materials: 27-40 parts of bisphenol A epoxy resin; 10-12 parts of a reactive diluent; the component B comprises the following raw materials: 5-8 parts of an auxiliary agent; the component C comprises the following raw materials: 6-9 parts of a pigment; 15-20 parts of a filler; 10-15 parts of a corrosion inhibitor; the weight ratio of the component A to the component B to the component C is 2:1:6, the beneficial effects of the invention are as follows: the coating is internally added with the ion exchange type corrosion inhibitor, improves the coating efficiency, improves the barrier property, improves the corrosion resistance and reduces the using amount of the coating, replaces the traditional chromate-based corrosion inhibitor, reduces the toxicity of the coating on the premise of ensuring the corrosion resistance of the coating, reduces the damage to human bodies and the environment, and has higher practicability and market prospect.
Description
Technical Field
The invention relates to the paint industry, in particular to a solvent-free epoxy self-leveling paint and a preparation method thereof.
Background
When some middle-high grade districts or office building underground parking lots are built, certain requirements are required on the parking lot ground coating, the flatness and the smoothness of the ground in the area are high after the ground is built, meanwhile, the scratch-resistant and wear-resistant characteristics are required, and most of the currently used coating adopts a solvent-free self-leveling coating.
However, the existing solvent-free self-leveling coating also has many problems and defects in the actual use process, for example, the existing solvent-free self-leveling coating has certain harmfulness to the environment and human bodies in the construction and use processes in order to ensure the corrosion resistance, so that in order to solve the problem, the development of a solvent-free epoxy self-leveling coating and a preparation method thereof are urgently needed.
Disclosure of Invention
The invention aims to provide a solvent-free epoxy self-leveling coating and a preparation method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a solvent-free epoxy self-leveling coating comprises a raw material component A, a component B and a component C in parts by weight as follows:
the component A comprises the following raw materials:
27-40 parts of bisphenol A epoxy resin;
10-12 parts of a reactive diluent;
the component B comprises the following raw materials:
5-8 parts of an auxiliary agent;
the component C comprises the following raw materials:
6-9 parts of pigment;
15-20 parts of a filler;
10-15 parts of a corrosion inhibitor;
the weight ratio of the component A to the component B to the component C is 2:1:6.
compared with the prior art, the invention has the beneficial effects that: the coating is internally added with the ion exchange type corrosion inhibitor, improves the coating efficiency, improves the barrier property, improves the corrosion resistance and reduces the using amount of the coating, replaces the traditional chromate-based corrosion inhibitor, reduces the toxicity of the coating on the premise of ensuring the corrosion resistance of the coating, simultaneously reduces the damage to human body and environment, has higher practicability and market prospect, and is suitable for large-scale popularization and use.
Drawings
Fig. 1 is a flow chart of a preparation process of a solvent-free epoxy self-leveling coating and a preparation method thereof in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 creative effort, shall fall within the protection scope of the present invention.
The solvent-free epoxy self-leveling coating comprises the following raw materials in parts by weight: the component A comprises the following raw materials: 27-40 parts of bisphenol A type epoxy resin; 10-12 parts of a reactive diluent; the component B comprises the following raw materials: 5-8 parts of an auxiliary agent; the component C comprises the following raw materials: 6-9 parts of pigment; 15-20 parts of a filler; 10-15 parts of a corrosion inhibitor; the weight ratio of the component A to the component B to the component C is 2:1:6.
in one embodiment of the invention:
the reactive diluent selects ethylene glycol diglycidyl ether or phenyl glycidyl ether, most of the solvent-free epoxy self-leveling floor coatings produced at present adopt E-51 liquid epoxy resin which has the characteristics of good mechanical property, high bonding property, low curing shrinkage rate, excellent comprehensive performance and the like, and the synthetic resin is a synthetic resin for the most widely applied floor coatings at present, the addition of the reactive diluent such as the ethylene glycol diglycidyl ether or the phenyl glycidyl ether does not influence the dielectric property of the coating basically, the arc resistance is improved, and the reactive diluent such as the ethylene glycol diglycidyl ether or the phenyl glycidyl ether needs to be added in an environment at the temperature of 25-30 ℃ when being added, so that the prepared coating has better viscosity.
In one embodiment of the invention:
the filler is any one of talcum powder or quartz powder, the filler can improve the material performance, or can increase the volume and weight, and reduce the material cost, the filler plays a role of a framework in the paint, the coating thickness is increased, the talcum powder or quartz powder is used as the filler, the light reflectivity of the paint can be effectively increased, and the paint can be bright in color and elegant in appearance.
In one embodiment of the invention:
the leveling agent is any one of polymethylsiloxane, cellulose acetate butyrate and polyvinyl butyral, and a new interface appears after the coating is constructed, generally speaking, the new interface is a liquid/solid interface between the coating and a substrate and a liquid/gas interface between the coating and air. If the interfacial tension of the liquid/solid interface between the coating and the substrate is higher than the critical surface tension of the substrate, the coating cannot be spread on the substrate, leveling defects such as fish eyes, shrinkage cavities and the like can be generated naturally, the leveling agent can promote the coating to form a flat, smooth and uniform coating film in the drying film-forming process, the surface tension of the coating liquid is effectively reduced, the leveling property and the uniformity of the coating liquid are improved, the permeability of the coating liquid can be improved, the possibility of spots and scars generated in the brushing process can be reduced, the coverage is increased, and the film forming is uniform and natural.
In one embodiment of the invention:
the toughening agent is any one of ether sulfone, polyetherimide, polysulfone and polyether ether ketone, the epoxy resin is low in elongation and high in brittleness after being cured, cracks are easily generated when the bonding part bears external force and rapidly expand to cause cracking of a glue layer and fatigue resistance, and the bearing strength of the paint can be improved by adding the toughening agent.
In one embodiment of the invention:
the defoaming agent is a polyether defoaming agent, the defoaming agent can effectively reduce the surface tension of water, solution, suspension and the like, prevent foam from forming or reduce original foam in the paint, and the polyether defoaming agent is a copolymer of ethylene oxide and propylene oxide and mainly achieves a defoaming effect by utilizing different characteristics of solubility of the polyether defoaming agent expressed at different temperatures. At low temperatures, the polyether is dispersed in water, and as the temperature is increased, the hydrophilicity of the polyether gradually decreases, and the polyether is rendered insoluble until the cloud point, thus exerting defoaming action.
In one embodiment of the invention:
the corrosion inhibitor is a Halox 430 multipurpose heavy metal-free corrosion inhibitor, the adopted Halox 430 multipurpose heavy metal-free corrosion inhibitor is an ion exchange type corrosion inhibitor, nanotechnology is adopted, the coating efficiency is improved, the barrier property is improved, the corrosion resistance is improved, and the using amount of the coating is reduced.
The method for preparing the solvent-free epoxy self-leveling coating comprises the following steps: pouring reactive diluent and bisphenol A epoxy resin in corresponding parts by weight into a mixing container, and carrying out spiral mixing on the reactive diluent and the bisphenol A epoxy resin in the container by adopting a spiral mixing element at the rotating speed of 500-700rpm for 30-40min by rotary mixing to obtain a first mixed liquid; step two, sequentially adding the flatting agent, the toughening agent and the defoaming agent into the first mixed liquid agent, carrying out spiral mixing at the rotating speed of 200-300rpm for 20-25min, and obtaining a second mixed liquid agent; step three, sequentially adding the pigment, the filler and the corrosion inhibitor into the second mixed liquid agent, and carrying out spiral mixing at the rotating speed of 400-500rpm for 60-70min to obtain the epoxy self-leveling coating; and step four, guiding the epoxy self-leveling coating in the container out to a storage tank for storage.
The working principle of the invention is as follows: the addition of reactive diluents such as ethylene glycol diglycidyl ether or phenyl glycidyl ether added in the coating does not affect the dielectric property of the coating basically, the arc resistance is improved, the addition of the reactive diluents such as ethylene glycol diglycidyl ether or phenyl glycidyl ether is carried out at the temperature of 25-30 ℃, so that the prepared coating has better viscosity, the addition of the filler can improve the material property, or can increase the capacity and weight and reduce the cost of the material, the reactive diluents play a role of a framework in the coating and increase the thickness of the coating, the talc powder or quartz powder is used as the filler to effectively increase the light reflectivity of the coating, so that the color and luster of the coating are bright, and a new interface can appear after the coating is constructed, generally, the interface is a liquid/solid interface between the coating and a substrate and a liquid/gas interface between the coating and air. If the interfacial tension of a liquid/solid interface between the coating and the substrate is higher than the critical surface tension of the substrate, the coating cannot be spread on the substrate, leveling defects such as fish eyes, shrinkage cavities and the like can be generated naturally, the leveling agent can promote the coating to form a flat, smooth and uniform coating film in a drying film-forming process, the surface tension of the coating liquid is effectively reduced, the leveling property and uniformity of the coating liquid are improved, the permeability of the coating liquid can be improved, the possibility of spots and scars generated in the brushing process can be reduced, the coverage property is improved, the film forming is uniform and natural, meanwhile, the epoxy resin is low in elongation and high in brittleness after being cured, cracks are easily generated when an adhesive part bears external force and rapidly expand to cause cracking of a glue layer and fatigue resistance, the bearing strength of the paint can be improved by adding a flexibilizer, the surface tension of water, a solution, a suspension liquid and the like can be effectively reduced by the defoaming agent, the foam formation is prevented, or the original foam in the paint is reduced, the polyether type defoaming agent is a copolymer of ethylene oxide and propylene oxide, and mainly utilizes different characteristics of the dissolubility of the defoaming agent expressed in different temperatures to achieve the action. At low temperature, polyether is dispersed in water, when the temperature is continuously raised, the hydrophilicity of the polyether is gradually reduced, and the polyether is enabled to be in an insoluble state until the cloud point, so that the defoaming effect is exerted;
on the premise of ensuring the corrosion resistance of the coating, the Halox 430 multipurpose heavy metal-free corrosion inhibitor is an ion exchange type corrosion inhibitor, the nano technology is adopted, the coating efficiency is improved, the barrier property is improved, the corrosion resistance is improved, and the consumption of the coating is reduced.
In conclusion, the ion exchange type corrosion inhibitor is added into the coating, so that the coating efficiency is improved, the barrier property is improved, the corrosion resistance is improved, the using amount of the coating is reduced, the traditional chromate-based corrosion inhibitor is replaced, the toxicity of the coating is reduced on the premise of ensuring the corrosion resistance of the coating, and the damage to human bodies and the environment is reduced.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (9)
1. The solvent-free epoxy self-leveling coating is characterized by comprising the following raw materials in parts by weight:
the component A comprises the following raw materials:
27-40 parts of bisphenol A epoxy resin;
10-12 parts of a reactive diluent;
the component B comprises the following raw materials:
5-8 parts of an auxiliary agent;
the component C comprises the following raw materials:
6-9 parts of pigment;
15-20 parts of a filler;
10-15 parts of a corrosion inhibitor;
the weight ratio of the component A to the component B to the component C is 2:1:6.
2. the solventless epoxy self-leveling coating of claim 1 wherein the reactive diluent is ethylene glycol diglycidyl ether or phenyl glycidyl ether.
3. The solventless epoxy self-leveling coating according to claim 1, wherein the filler is any one of talc powder or quartz powder.
4. The solventless epoxy self-leveling coating of claim 3 wherein the auxiliaries are leveling agents, toughening agents and defoamers.
5. The solventless epoxy self-leveling coating according to claim 4, wherein the leveling agent is any one of polymethylsiloxane, cellulose acetate butyrate and polyvinyl butyral.
6. The solventless epoxy self-leveling coating of claim 4 wherein the toughening agent is any one of an ethersulfone, a polyetherimide, a polysulfone, and a polyetheretherketone.
7. The solventless epoxy self-leveling coating of claim 4 wherein the defoamer is a polyether defoamer.
8. The solventless epoxy self-leveling coating of claim 1 wherein the corrosion inhibitor is a Halox 430 multipurpose heavy metal free corrosion inhibitor.
9. A process for preparing the solventless epoxy self leveling coating of any one of claims 1 to 8 comprising the steps of:
pouring reactive diluent and bisphenol A epoxy resin in corresponding parts by weight into a mixing container, and carrying out spiral mixing on the reactive diluent and the bisphenol A epoxy resin in the container by adopting a spiral mixing element at the rotating speed of 500-700rpm for 30-40min by rotary mixing to obtain a first mixed liquid;
step two, sequentially adding the flatting agent, the toughening agent and the defoaming agent into the first mixed liquid agent, carrying out spiral mixing at the rotating speed of 200-300rpm for 20-25min, and obtaining a second mixed liquid agent;
step three, sequentially adding the pigment, the filler and the corrosion inhibitor into the second mixed liquid agent, and carrying out spiral mixing at the rotating speed of 400-500rpm for 60-70min to obtain the epoxy self-leveling coating;
and step four, guiding the epoxy self-leveling coating in the container out to a storage tank for storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211517959.3A CN115820083A (en) | 2022-11-29 | 2022-11-29 | Solvent-free epoxy self-leveling coating and preparation method thereof |
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| CN202211517959.3A CN115820083A (en) | 2022-11-29 | 2022-11-29 | Solvent-free epoxy self-leveling coating and preparation method thereof |
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| CN115820083A true CN115820083A (en) | 2023-03-21 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070224362A1 (en) * | 2004-12-20 | 2007-09-27 | Remi Briand | Two-part waterborne epoxy coating composition and method |
| CN102439100A (en) * | 2009-05-22 | 2012-05-02 | Ppg工业俄亥俄公司 | One-component epoxy coating compositions |
| CN102775884A (en) * | 2012-08-22 | 2012-11-14 | 山西省交通科学研究院 | Solvent-free colored floor coating |
| CN102876198A (en) * | 2012-09-16 | 2013-01-16 | 广州秀珀化工股份有限公司 | Solvent-free high-elasticity epoxy self-leveling coating and preparation method thereof |
| CN102993889A (en) * | 2012-11-28 | 2013-03-27 | 天长市开林化工有限公司 | Preparation method of floor coating |
| CN103073970A (en) * | 2012-11-23 | 2013-05-01 | 高凡 | Preparation method of novel solvent-free antistatic antibiosis epoxy self-leveling terrace paint |
| CN105368256A (en) * | 2015-11-30 | 2016-03-02 | 无锡拓能自动化科技有限公司 | Solvent-free epoxy floor paint and preparation method therefor |
-
2022
- 2022-11-29 CN CN202211517959.3A patent/CN115820083A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070224362A1 (en) * | 2004-12-20 | 2007-09-27 | Remi Briand | Two-part waterborne epoxy coating composition and method |
| CN102439100A (en) * | 2009-05-22 | 2012-05-02 | Ppg工业俄亥俄公司 | One-component epoxy coating compositions |
| CN102775884A (en) * | 2012-08-22 | 2012-11-14 | 山西省交通科学研究院 | Solvent-free colored floor coating |
| CN102876198A (en) * | 2012-09-16 | 2013-01-16 | 广州秀珀化工股份有限公司 | Solvent-free high-elasticity epoxy self-leveling coating and preparation method thereof |
| CN103073970A (en) * | 2012-11-23 | 2013-05-01 | 高凡 | Preparation method of novel solvent-free antistatic antibiosis epoxy self-leveling terrace paint |
| CN102993889A (en) * | 2012-11-28 | 2013-03-27 | 天长市开林化工有限公司 | Preparation method of floor coating |
| CN105368256A (en) * | 2015-11-30 | 2016-03-02 | 无锡拓能自动化科技有限公司 | Solvent-free epoxy floor paint and preparation method therefor |
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