CN115537098A - Waterborne epoxy floor base coating composition for sand-blasting ground and preparation method thereof - Google Patents
Waterborne epoxy floor base coating composition for sand-blasting ground and preparation method thereof Download PDFInfo
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- CN115537098A CN115537098A CN202211180784.1A CN202211180784A CN115537098A CN 115537098 A CN115537098 A CN 115537098A CN 202211180784 A CN202211180784 A CN 202211180784A CN 115537098 A CN115537098 A CN 115537098A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
Abstract
The invention relates to the technical field of coatings, and particularly relates to a water-based epoxy floor base coating composition for a sand-blasting ground and a preparation method thereof, wherein the water-based epoxy floor base coating composition comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 75-85 parts of water-based epoxy resin emulsion, 14-24 parts of deionized water, 0.5-2 parts of thickening and leveling agent, 0.1-0.5 part of water-based base material wetting agent and 0.1-0.5 part of water-based defoaming agent; the component B comprises the following components in parts by mass: 80-100 parts of waterborne epoxy curing agent, 3-10 parts of deionized water, 3-8 parts of ethylene glycol butyl ether, 1-5 parts of waterborne silane coupling agent, 0.1-0.5 part of waterborne defoamer and 0.1-0.5 part of waterborne base material wetting agent. The problem that the surface drying time and the actual drying time can be increased in the process of improving the tensile bonding strength of the conventional waterborne epoxy floor base coating composition is effectively solved. The waterborne epoxy floor base coating composition for the sand-blasting ground has strong tensile bonding strength, and does not prolong the surface drying time and the actual drying time, so that the composition can be formed more quickly and better.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based epoxy floor base coating composition for a sand-blasting ground and a preparation method thereof.
Background
The epoxy resin base coat is used as a necessary component of an epoxy floor coating system and plays a role in sealing and bonding the base material. At present, a solvent-type and solvent-free epoxy primer coating material which still uses polyamide as a curing agent is used more. The solvent-based epoxy primer has a high VOC content and a high peculiar smell, so that the use environment of the solvent-based epoxy primer is greatly limited, particularly the use of the solvent-free epoxy primer in a semiconductor chip factory floor coating system, and the solvent-free epoxy primer is limited due to high raw material cost and unfriendly construction process. Meanwhile, the solvent-type and solvent-free epoxy floor base coating materials are influenced by the water content of the base material, and are difficult to use on a damp base surface, particularly a newly-poured concrete base surface and a water seepage base surface.
The water-based epoxy resin coating takes water as a dispersion medium, so that the water-based epoxy resin coating has the advantage of construction in a high-humidity environment, has the characteristics of low Volatile Organic Compound (VOC), small peculiar smell and the like, is friendly to human and environment, is concerned by people, and has a large amount of application in floor coating materials, particularly microelectronic workshops in recent years.
In the process of evaluating the epoxy floor base coating composition, the tensile bonding strength in the physical properties is an important index for evaluating a class of epoxy floor base coating compositions, basic performance requirements of water-based, solvent-based and solvent-free floor coating material surface coatings and coating systems of the existing GB/T2237-2018 floor coating material are explicitly recorded in a table, the tensile bonding strength is more than or equal to 2.0 under standard conditions and immersion conditions, and the higher the tensile bonding strength is, the better the flexibility of the coating is, the strong the micro-crack following performance of the coating is, so that the tensile bonding strength can be improved as much as possible when the existing epoxy floor base coating composition is blended, but the surface drying time and the actual drying time can be increased in the process of improving the tensile bonding strength.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide a water-based epoxy floor base coating composition for a sand-blasting ground and a preparation method thereof, which effectively solve the problem that the surface drying time and the actual drying time of the existing water-based epoxy floor base coating composition are increased in the process of improving the tensile bonding strength.
The invention provides a water-based epoxy floor base coating composition for a sand-making ground, which comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 75-85 parts of water-based epoxy resin emulsion, 14-24 parts of deionized water, 0.5-2 parts of thickening and leveling agent, 0.1-0.5 part of water-based base material wetting agent and 0.1-0.5 part of water-based defoaming agent; the component B comprises the following components in parts by mass: 80-100 parts of waterborne epoxy curing agent, 3-10 parts of deionized water, 3-8 parts of ethylene glycol monobutyl ether, 1-5 parts of waterborne silane coupling agent, 0.1-0.5 part of waterborne defoamer and 0.1-0.5 part of waterborne base material wetting agent.
Preferably, the aqueous epoxy resin emulsion is a self-emulsifying aqueous epoxy resin emulsion.
Preferably, the water-based epoxy curing agent is a non-ionic self-emulsifying water-based epoxy curing agent.
Preferably, the thickening and leveling agent is an associated thickening and leveling agent.
A preparation method of a waterborne epoxy floor base coating composition for a sand-blasting ground comprises the following steps:
step one, preparing a component A;
step two, preparing a component B;
step three, mixing the component A obtained in the step one and the component B obtained in the step two according to the ratio of 1:1 to obtain the waterborne epoxy floor base coating composition.
Preferably, the first step includes weighing the above parts by mass of the aqueous epoxy resin and deionized water, placing them in a suitable container, stirring and premixing, weighing the above parts by mass of the thickening and leveling agent, the aqueous base material wetting agent and the aqueous defoaming agent, continuously dropping the above raw materials one by one while stirring the aqueous epoxy resin emulsion, and stirring the above raw materials in the container to obtain the component a.
Preferably, the stirring speed of the aqueous epoxy resin emulsion in the first step is 800r/min, and the stirring time is 15min after the raw materials of the component A are added.
Preferably, the second step includes: weighing the above parts by mass of the waterborne epoxy curing agent and adding the waterborne epoxy curing agent into a new container, weighing the above parts by mass of ethylene glycol butyl ether, deionized water, a waterborne defoamer, a waterborne base material wetting agent and a waterborne silane coupling agent and adding the weighed materials into the container containing the waterborne epoxy curing agent, stirring the waterborne epoxy curing agent when the above raw materials are added into the container containing the waterborne epoxy curing agent, and stirring after the addition of the above raw materials is finished to obtain the component B.
Preferably, the stirring speed of the aqueous epoxy curing agent in the second step is 800r/min, and the stirring time is 15min after the raw materials of the component B are added.
Preferably, the mixing time of the A, B components in the third step is 3-5min.
The beneficial effects of the invention are as follows:
the water-based epoxy floor base coating composition for the sand-making ground has strong tensile bonding strength, and does not prolong the surface drying time and the actual drying time, so that the composition can be formed more quickly and better.
Drawings
FIG. 1 is a flow chart of the steps of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples of the present invention.
Example 1:
the water-based epoxy floor base coating composition for the sanding ground comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 75-85 parts of water-based epoxy resin emulsion, 14-24 parts of deionized water, 0.5-2 parts of thickening and leveling agent, 0.1-0.5 part of water-based base material wetting agent and 0.1-0.5 part of water-based defoaming agent, wherein the water-based epoxy resin emulsion is CYDW-125 self-emulsifying water-based epoxy resin emulsion of the Baling petrochemical company, and the thickening and leveling agent is PUR-40 associative thickening and leveling agent of the public chemical company;
the component B comprises the following components in parts by mass: 80-100 parts of waterborne epoxy curing agent, 3-10 parts of deionized water, 3-8 parts of ethylene glycol butyl ether, 1-5 parts of waterborne silane coupling agent, 0.1-0.5 part of waterborne defoamer and 0.1-0.5 part of waterborne base material wetting agent, wherein the waterborne epoxy curing agent adopts CYDHD-208 non-ionic self-emulsifying waterborne epoxy curing agent of the ba Ling petrochemical company;
the water-based defoaming agent adopts a T-4505 defoaming agent of Shilan company, the water-based base material wetting agent adopts a BYK-346 base material wetting agent of Pick chemical company, and the water-based silane coupling agent adopts a KBM-403 water-based silane coupling agent of Xinyue company.
The component A comprises: accurately weighing 800g of water-based epoxy resin emulsion and 180g of deionized water, adding the water-based epoxy resin emulsion and the deionized water into a container, slowly adding 10g of weighed thickening and leveling agent, 5g of water-based defoaming agent and 5g of water-based base material wetting agent under stirring at 800r/min, and stirring for 15min to obtain a component A;
and B component: accurately weighing 800g of waterborne epoxy curing agent and 100g of deionized water, adding into a container, slowly adding 50g of weighed ethylene glycol monobutyl ether, 45g of waterborne silane coupling agent and 5g of waterborne defoamer respectively under stirring at 800r/min, and stirring for 15min to obtain a component B;
a: B = 1:1, AB is mixed and stirred for 3 minutes to obtain the water-based epoxy floor base coat.
Example 2:
the component A comprises: according to CN201610475505.2, example 2 preparing 800g of F-51 aqueous epoxy resin emulsion with the solid content of 40% and 180g of deionized water, adding the mixture into a container, slowly adding 10g of the weighed leveling agent, 5g of the aqueous defoaming agent and 5g of the substrate wetting agent respectively under the stirring of 800r/min, and stirring for 15min to obtain a component A;
and B component: accurately weighing 800g of waterborne epoxy curing agent and 100g of deionized water, adding into a container, slowly adding 50g of weighed ethylene glycol monobutyl ether, 45g of waterborne silane coupling agent and 5g of waterborne defoamer respectively under stirring at 800r/min, and stirring for 15min to obtain a component B;
and A: B = 1:1, and AB is mixed and stirred for 3 minutes to obtain the water-based epoxy floor base coat.
Example 3:
the component A comprises: weighing 800g of EPIKOTE7520-WD-52A water-based epoxy resin emulsion with solid content of 52% and 180g of deionized water, adding into a container, stirring at 800r/min, slowly adding 10g of the weighed leveling agent, 5g of the water-based defoaming agent and 5g of the base material wetting agent respectively, and stirring for 15min to obtain a component A;
and B component: 800g of waterborne epoxy curing agent and 100g of deionized water are accurately weighed and added into a container. Respectively and slowly adding 50g of weighed butyl cellosolve, 45g of waterborne silane coupling agent and 5g of waterborne defoamer under stirring at the speed of 800r/min, and stirring for 15min to obtain a component B;
and A: B = 1:1, and AB is mixed and stirred for 3 minutes to obtain the water-based epoxy floor base coat.
Example 4:
the component A comprises: adding 55% solid content PZ 3961-1 into deionized water to dilute into 800g of aqueous epoxy resin emulsion with 45% solid content and 180g of deionized water, adding into a container, slowly adding 10g of weighed leveling agent, 5g of aqueous defoaming agent and 5g of substrate wetting agent under stirring at 800r/min, and stirring for 15min to obtain a component A;
and B component: accurately weighing 800g of waterborne epoxy curing agent and 100g of deionized water, adding into a container, slowly adding 50g of weighed ethylene glycol monobutyl ether, 45g of waterborne silane coupling agent and 5g of waterborne defoamer respectively under stirring at 800r/min, and stirring for 15min to obtain a component B;
a: B = 1:1, AB is mixed and stirred for 3 minutes to obtain the water-based epoxy floor base coat.
The above examples 1-4 were tested in GB/T22374-2018 as follows
As shown in the table above, the indexes of the waterborne epoxy floor base coating materials prepared in examples 1 to 4 meet the requirements of the technical standard GB/T22374-2018, wherein one index of "tensile bond strength" used for characterizing the adhesion performance of a paint film in examples 2 to 4 is lower than that in example 1, and the tack-free time of example 1 is better than that in other examples.
In conclusion, the water-based epoxy floor base coating composition for the sand-blasting ground prepared by the invention has excellent tensile bonding strength, and meanwhile, the surface drying time and the actual drying time of the water-based epoxy floor base coating composition for the sand-blasting ground prepared by the invention are excellent compared with similar products.
Claims (10)
1. The utility model provides a be used for dull polish ground waterborne epoxy terrace prime coat composition which characterized in that: the coating comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 75-85 parts of water-based epoxy resin emulsion, 14-24 parts of deionized water, 0.5-2 parts of thickening and leveling agent, 0.1-0.5 part of water-based base material wetting agent and 0.1-0.5 part of water-based defoaming agent; the component B comprises the following components in parts by mass: 80-100 parts of waterborne epoxy curing agent, 3-10 parts of deionized water, 3-8 parts of ethylene glycol butyl ether, 1-5 parts of waterborne silane coupling agent, 0.1-0.5 part of waterborne defoamer and 0.1-0.5 part of waterborne base material wetting agent.
2. The waterborne epoxy floor base coating composition for a sand-blasting ground according to claim 1, characterized in that: the water-based epoxy resin emulsion is self-emulsifying water-based epoxy resin emulsion.
3. The waterborne epoxy floor base coating composition for a sand-blasting ground according to claim 1, characterized in that: the water-based epoxy curing agent is a non-ionic self-emulsifying water-based epoxy curing agent.
4. The waterborne epoxy floor base coating composition for a sand-blasting ground according to claim 1, characterized in that: the thickening and leveling agent is an associated thickening and leveling agent.
5. A preparation method of a water-based epoxy floor base coating composition for a sand-blasting ground is characterized by comprising the following steps:
step one, preparing a component A;
step two, manufacturing a component B;
step three, mixing the component A obtained in the step one and the component B obtained in the step two according to the proportion of 1:1 to obtain the waterborne epoxy floor base coating composition.
6. The preparation method of the waterborne epoxy floor base coating composition for the sand-raising ground according to claim 5, characterized in that: the first step comprises weighing the water-based epoxy resin and deionized water in parts by mass, placing the water-based epoxy resin and deionized water in a proper container, stirring and premixing, weighing the thickening and leveling agent, the water-based base material wetting agent and the water-based defoaming agent in parts by mass, continuously dripping the raw materials one by one in the stirring process of the water-based epoxy resin emulsion, and stirring the raw materials in the container subjected to premixing to obtain the component A.
7. The preparation method of the waterborne epoxy floor base coating composition for the sand-raising ground according to claim 6, characterized in that: the stirring speed of the aqueous epoxy resin emulsion in the step one is 800r/min, and the stirring time is 15min after the raw materials of the component A are added.
8. The preparation method of the waterborne epoxy floor base coating composition for the sand-raising ground according to claim 5, characterized in that: the second step comprises the following steps: weighing the above parts by mass of the waterborne epoxy curing agent and adding the waterborne epoxy curing agent into a new container, weighing the above parts by mass of ethylene glycol butyl ether, deionized water, a waterborne defoamer, a waterborne base material wetting agent and a waterborne silane coupling agent and adding the weighed materials into the container containing the waterborne epoxy curing agent, stirring the waterborne epoxy curing agent when the above raw materials are added into the container containing the waterborne epoxy curing agent, and stirring after the addition of the above raw materials is finished to obtain the component B.
9. The preparation method of the waterborne epoxy floor base coating composition for the sand-raising ground according to claim 8, characterized in that: and the stirring speed of the waterborne epoxy curing agent in the second step is 800r/min, and the stirring time is 15min after the raw materials of the component B are added.
10. The preparation method of the waterborne epoxy floor base coating composition for the sanding ground according to claim 5, characterized in that: and in the third step, the mixing time of the A, B component is 3-5min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211180784.1A CN115537098A (en) | 2022-09-27 | 2022-09-27 | Waterborne epoxy floor base coating composition for sand-blasting ground and preparation method thereof |
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| CN202211180784.1A CN115537098A (en) | 2022-09-27 | 2022-09-27 | Waterborne epoxy floor base coating composition for sand-blasting ground and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679457A (en) * | 2019-01-10 | 2019-04-26 | 汇克涂料(湖南)有限公司 | It is a kind of can Quick-air-drying waterborne epoxy floor paint |
| CN110591506A (en) * | 2019-10-08 | 2019-12-20 | 绵阳惠利环氧工程有限公司 | Bi-component water-based epoxy floor base coat and preparation method thereof |
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- 2022-09-27 CN CN202211180784.1A patent/CN115537098A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679457A (en) * | 2019-01-10 | 2019-04-26 | 汇克涂料(湖南)有限公司 | It is a kind of can Quick-air-drying waterborne epoxy floor paint |
| CN110591506A (en) * | 2019-10-08 | 2019-12-20 | 绵阳惠利环氧工程有限公司 | Bi-component water-based epoxy floor base coat and preparation method thereof |
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