Polyaspartic ester for floor protection finish and method of making the same

Abstract

The present application relates to the technical field of building coating, and particularly relates to a polyaspartic ester for floor protection and decoration paint and a preparation method thereof, wherein the composition of A component includes 500-600 parts of polyaspartic ester resin, 1-1.2 parts of wetting agent, 4-4.5 parts of dispersing agent, 4-4.5 parts of first defoaming agent, 5-10 parts of anti-settling agent, 100-150 parts of titanium white, 150-250 parts of precipitated barium sulfate, 0.5-30 parts of color paste, 4-4.5 parts of adhesion promoter, 4-4.5 parts of leveling agent and 1-3 parts of second defoaming agent; the composition of B component includes 1000 parts of HDI trimer. The present application has the advantages of rapid repair, rapid drying, rapid operation, good physical and chemical properties and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of architectural coatings, in particular to a synthetic polyaspartic ester resin for floor protection and decoration paint and a preparation method thereof. BACKGROUND

[0002] Poly(urea) urethane coatings are rapidly developed with the development of poly(urea) urethane synthetic chemistry and the wide application of poly(urea) urethane materials. With the sustained and rapid development of China's national economy and infrastructure, the requirements for long-term use of national key and large-scale projects are also increasingly high, which require not only excellent weather resistance, good acid, alkali and salt corrosion resistance and wear resistance, but also good decoration and construction properties.

[0003] People have increasingly high requirements for the protection and decoration effect of floors, especially some operating supermarkets, office buildings, hotels, automobile factories, electronic factories, textile factories and the like. The existing polyaspartic ester is found to have high hardness, high brittleness and slow drying in the use of epoxy in floor decoration and protection, which cannot meet the requirements of rapid repair and rapid operation. A new material is developed. SUMMARY

[0004] The technical problem to be solved by the present application is to synthesize a polyaspartic ester resin for floor protection and decoration paint to solve the above problems.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: a polyaspartic ester for floor protection and decoration paint, which is composed of A component and B component.

[0006] The A component comprises, by mass fraction:

[0007]

[0008]

[0009] The B component comprises, by mass fraction: 1000 parts of HDI trimer.

[0010] As a further scheme of the present application, the polyaspartic ester resin comprises the following components by mass percentage: high molecular weight amino-terminated polyether content of 30-50%, refluxing aid content of 1-10%, aspartic ester content of 30-50%, and HDI content of 5-10%.

[0011] As a further scheme of the present application, the mass ratio of the A component to the B component is 1:1.

[0012] As a further scheme of the present application, the wetting agent is a Gemini surface wetting agent.

[0013] As a further scheme of the present application, the first defoaming agent is polysiloxane 811; and the anti-settling agent is a polyamide wax anti-settling agent.

[0014] As a further scheme of the present application, the color paste is a solvent-free color paste.

[0015] As a further scheme of the present application, the adhesion promoter is a sulfonamide-based adhesion promoter.

[0016] As a further scheme of the present application, the leveling agent is a polyacrylate leveling agent 1123; and the second defoaming agent is a polyacrylate defoaming agent.

[0017] As a further scheme of the present application, the reflux aid is an ether ester reflux agent.

[0018] A preparation method of a polyaspartic ester for a floor protection and decoration paint, and the specific steps are as follows:

[0019] Step one, synthesis of polyaspartic ester resin: first, put the high molecular weight amino-terminated polyether into the kettle, start stirring, add the reflux aid, and at 60-80 DEG C, add the aspartic ester and HDI into the kettle through two dropping funnels at a fixed speed to participate in the chain extension and gradual reaction, so as to obtain the polyaspartic ester resin;

[0020] Step two, paint preparation with the synthesized polyaspartic ester resin: under the condition of starting the high-speed dispersion machine, sequentially put the polyaspartic ester resin, the wetting agent, the dispersing agent, the first defoaming agent, the anti-settling agent, the titanium white, the precipitated barium sulfate, the color paste, the adhesion promoter, the leveling agent and the second defoaming agent, and disperse at a high speed for 30-35 minutes at 40-60 DEG C, and then grind the fineness to below 30 um in a sand mill, adjust the viscosity, and test the performance.

[0021] In step one, the dropping is performed according to the isocyanate equivalent of HDI and the total active hydrogen equivalent at 5-10:1.

[0022] Due to the adoption of the above technical scheme, the present application has the following advantages and positive effects:

[0023] 1. The active hydrogen with the structure of 'ROO-NH-OOR' and the like and the fast cross-linking reaction with the structure of R"-N=C=O and the like can make the final product have the functions of fast repair, fast drying and fast operation.

[0024] 2, using the urea bond, hydrogen bond, urethane bond and other chemical bonds in R'-OO-NR-CO-NH-R" and similar structures to give wear resistance, cohesion, tensile and other physical properties, so that the final product has the ability of wear resistance, fine crack resistance of concrete, resistance to vehicle rolling, heavy object resistance, chemical resistance and so on. DETAILED DESCRIPTION

[0025] Example 1

[0026] The polyaspartic ester for the floor protection and decoration paint is composed of A component and B component;

[0027] The A component includes the following components by mass fraction:

[0028]

[0029]

[0030] The B component includes the following components by mass fraction: 1000 parts of HDI trimer;

[0031] The polyaspartic ester resin includes the following components by mass percentage: 30% of high molecular weight terminal amino polyether, 1% of refluxing aid, 30% of aspartic ester, and 5% of HDI; the mass ratio of the A component to the B component is 1:1.

[0032] The wetting agent is a gemini surface wetting agent; the dispersing agent is a controlled free radical polymerization super dispersing agent; the first defoaming agent is polysiloxane 811; the anti-settling agent is a polyamide wax anti-settling agent; the color paste is a solvent-free color paste; the adhesion promoter is a sulfonamide-based adhesion promoter; the leveling agent is a polyacrylate leveling agent 1123; the second defoaming agent is a polyacrylate defoaming agent; and the refluxing aid is an ether ester refluxing agent.

[0033] A preparation method of a polyaspartic ester for floor protection and decoration paint, the specific steps are as follows: step one, synthesis of polyaspartic ester resin: first, put the high molecular weight terminal amino polyether into the kettle, start stirring, add the refluxing aid, add the aspartic ester and HDI at 60℃ through two dropping funnels at a fixed speed to participate in the chain extension reaction step by step, and obtain the polyaspartic ester resin;

[0034] Step two, paint preparation with the synthesized polyaspartic ester resin: under the condition of starting the high-speed dispersing machine, sequentially add the polyaspartic ester resin, wetting agent, dispersing agent, first defoaming agent, anti-settling agent, titanium white, precipitated barium sulfate, color paste, adhesion promoter, leveling agent and second defoaming agent, high-speed disperse at 40℃ for 30 minutes, grind the fineness to below 30um in a sand mill, adjust the viscosity, and test the performance.

[0035] The total active hydrogen equivalent and the isocyanate equivalent of HDI are 5:1.

[0036] Example 2

[0037] The polyaspartic ester for the floor protection and decoration paint is characterized by being composed of A component and B component.

[0038] The A component comprises the following components by mass fraction:

[0039]

[0040] The B component comprises the following components by mass fraction: 1000 parts of HDI trimer.

[0041] The polyaspartic ester resin comprises the following components by mass percentage: high molecular weight terminal amino polyether content of 36%, refluxing aid content of 4%, aspartic ester content of 36%, and HDI content of 7%; the mass ratio of the A component to the B component is 1:1.

[0042] The wetting agent is a gemini surface wetting agent; the dispersing agent is a controlled free radical polymerization super dispersing agent; the first defoaming agent is polysiloxane 811; the anti-settling agent is a polyamide wax anti-settling agent; the color paste is a solvent-free color paste; the adhesion promoter is a sulfonamide-based adhesion promoter; the leveling agent is a polyacrylate leveling agent 1123; the second defoaming agent is a polyacrylate defoaming agent; and the refluxing aid is an ether ester refluxing agent.

[0043] A preparation method of a polyaspartic ester for a floor protection and decoration paint, and the specific steps are as follows: step one, synthesizing a polyaspartic ester resin: first, put high molecular weight terminal amino polyether into a kettle, start stirring, and add a refluxing aid; at 65°C, add aspartic ester and HDI into the kettle through two dropping funnels at a fixed speed to participate in chain extension and gradual reaction, so as to obtain a polyaspartic ester resin.

[0044] Step two, paint preparation using the synthesized polyaspartic ester resin: under the condition of starting a high-speed dispersing machine, sequentially add the polyaspartic ester resin, wetting agent, dispersing agent, first defoaming agent, anti-settling agent, titanium white, precipitated barium sulfate, color paste, adhesion promoter, leveling agent, and second defoaming agent, and disperse at a high speed for 30 minutes at 45°C; then, grind the mixture to a fineness of less than 30 um in a sand mill, adjust the viscosity, and test the performance.

[0045] In step one, the total active hydrogen equivalent and the isocyanate equivalent of HDI are 7:1.

[0046] Example 3

[0047] The polyaspartic ester for the floor protection and decoration paint is composed of A component and B component;

[0048] The A component comprises the following components by mass fraction:

[0049]

[0050]

[0051] The B component comprises the following components by mass fraction: 1000 parts of HDI trimer; the polyaspartic ester resin comprises the following components by mass percentage: 38% of high molecular weight terminal amino polyether content, 7% of refluxing aid content, 45% of aspartic ester content and 9% of HDI content; the mass ratio of the A component to the B component is 1:1;

[0052] The wetting agent is a gemini surface wetting agent; the dispersing agent is a controlled free radical polymerization super dispersing agent; the first defoaming agent is polysiloxane 811; the anti-sedimentation agent is a polyamide wax anti-sedimentation agent; the color paste is a solvent-free color paste; the adhesion promoter is a sulfonamide-based adhesion promoter; the leveling agent is a polyacrylate leveling agent 1123; the second defoaming agent is a polyacrylate defoaming agent; and the refluxing aid is an ether ester refluxing agent.

[0053] A preparation method of a polyaspartic ester for a floor protection and decoration paint, and the specific steps are as follows: step one, synthesizing a polyaspartic ester resin: first, put high molecular weight terminal amino polyether into a kettle, start stirring, add a refluxing aid, and then add aspartic ester and HDI into the kettle through two dropping funnels at a fixed speed at 74 DEG C for chain extension and gradual reaction to obtain the polyaspartic ester resin;

[0054] Step two, paint preparation using the synthesized polyaspartic ester resin: under the condition of starting a high-speed dispersing machine, sequentially add the polyaspartic ester resin, a wetting agent, a dispersing agent, a first defoaming agent, an anti-sedimentation agent, titanium white, precipitated barium sulfate, a color paste, an adhesion promoter, a leveling agent and a second defoaming agent, and then disperse at a high speed for 33 minutes at 50 DEG C, and then grind the mixture to a fineness of less than 30 um in a sand mill, adjust the viscosity and test the performance.

[0055] In step one, the dropping is performed according to the isocyanate equivalent of the total active hydrogen and HDI at 8:1.

[0056] Example 4

[0057] The polyaspartic ester for the floor protection and decoration paint is composed of A component and B component;

[0058] The A component comprises the following components by mass fraction:

[0059]

[0060] The B component comprises 1000 parts of HDI trimer by mass fraction, and the polyaspartic ester resin comprises the following components by mass percentage: high molecular weight terminal amino polyether content of 50%, refluxing aid content of 10%, aspartic ester content of 50%, and HDI content of 10%; the mass ratio of the A component to the B component is 1:1.

[0061] The wetting agent is a gemini surface wetting agent; the dispersing agent is a controlled free radical polymerization super dispersing agent; the first defoaming agent is polysiloxane 811; the anti-settling agent is a polyamide wax anti-settling agent; the color paste is a solvent-free color paste; the adhesion promoter is a sulfonamide-based adhesion promoter; the leveling agent is a polyacrylate leveling agent 1123; the second defoaming agent is a polyacrylate defoaming agent; and the refluxing aid is an ether ester refluxing agent.

[0062] A preparation method of a polyaspartic ester for a floor protection and decoration paint, and the specific steps are as follows: step one, synthesizing a polyaspartic ester resin: first, put high molecular weight terminal amino polyether into a kettle, start stirring, and add a refluxing aid; at 80℃, add aspartic ester and HDI into the kettle through two dropping funnels at a fixed speed to participate in chain extension and gradual reaction, and obtain the polyaspartic ester resin;

[0063] Step two, preparing a paint by using the synthesized polyaspartic ester resin: under the condition of starting a high-speed dispersing machine, sequentially add the polyaspartic ester resin, a wetting agent, a dispersing agent, a first defoaming agent, an anti-settling agent, titanium white, precipitated barium sulfate, a color paste, an adhesion promoter, a leveling agent, and a second defoaming agent, and disperse at a high speed for 35 minutes at 60℃; then, grind the mixture to a fineness of less than 30um in a sand mill, adjust the viscosity, and test the performance.

[0064] In step one, the dropping is performed at a total active hydrogen equivalent to isocyanate equivalent of HDI of 10:1.

[0065] Table 1 is the performance test of examples 1-4

[0066]

[0067] As shown in Table 1, the protection and decoration floor paint of the present application has the advantages of rapid repair, rapid drying, rapid operation, and good physical and chemical properties.

[0068] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only examples, and various changes or modifications can be made to the embodiments without departing from the principles and essence of the present application, and the protection scope of the present application is only defined by the appended claims.

Claims

1. A polyaspartic ester for use in a floor protection finish, characterized in that: It is composed of A component and B component; The A component comprises, by mass fraction: Polyaspartic ester resin 500-600 Wetting agent 1-1.2 Dispersant 4-4.5 First defoaming agent 4-4.5 Anti-settling agent 5-10 Titanium white 100-150 Precipitated barium sulfate 150-250 Color paste 0.5-30 Adhesion promoter 4-4.5 Leveling agent 4-4.5 Second defoaming agent 1-3 The B component comprises, by mass fraction: 1000 parts of HDI trimer; The preparation method of the polyaspartic ester resin is as follows: first, put high molecular weight amino-terminated polyether into a kettle, start stirring, add refluxing aid, and then add aspartic ester and HDI into the kettle through two dropping funnels at 60-80℃ to participate in chain extension and gradual reaction at a fixed speed; The preparation raw materials of the polyaspartic ester resin comprise, by mass percentage: 30-50% high molecular weight amino-terminated polyether, 1-10% refluxing aid, 30-50% aspartic ester, and 5-10% HDI.

2. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The dropping is carried out at 5-10:1 of the total active hydrogen equivalent to the isocyanate equivalent of HDI.

3. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The mass ratio of the A component to the B component is 1:

1.

4. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The wetting agent is a gemini surface wetting agent, and the dispersant is a controlled radical polymerization super dispersant.

5. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The first defoaming agent is polysiloxane 811, and the anti-settling agent is polyamide wax anti-settling agent.

6. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The color paste is a solvent-free color paste.

7. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The adhesion promoter is a sulfonamide-based adhesion promoter.

8. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The leveling agent is a polyacrylate-based leveling agent 1123, and the second defoaming agent is a polyacrylate-based defoaming agent.

9. A polyaspartic ester for use as a floor protection finish according to claim 1, characterized in that: The refluxing aid is an ether ester-based refluxing agent.

10. A process for the preparation of a polyaspartic ester for use in a floor protection finish according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Paint preparation with synthetic polyaspartic ester resin: under the condition of starting the high-speed disperser, sequentially add polyaspartic ester resin, wetting agent, dispersant, first defoaming agent, anti-settling agent, titanium white, precipitated barium sulfate, color paste, adhesion promoter, leveling agent, and second defoaming agent, and then disperse at high speed for 30-35 minutes at 40-60℃, grind to a fineness of less than 30um in a sand mill, adjust the viscosity, and test the performance.

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