A wear-resistant water-based floor paint and a preparation method thereof

By modifying polyurethane and epoxy acrylic resin to form a complex cross-linked structure, the problems of poor density and workability of water-based floor coatings are solved, the wear resistance and weather resistance of floor coatings are improved, and better mechanical properties and service life are achieved.

CN118206903BActive Publication Date: 2025-12-09JINHUA PUHUI PAINT CO LTD
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Patent Information

Application Number
CN202410438458.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-12
Publication Date
2025-12-09
Estimated Expiration
2044-04-12

AI Technical Summary

Technical Problem

Existing solvent-based epoxy floor coatings pose environmental pollution problems during production and use, while water-based floor coatings have disadvantages such as low film density and poor workability.

Method used

A complex cross-linked structure is formed by modifying polyurethane and epoxy acrylic resin. Hydrogen bonds and rigid non-coplanar structures are generated by reacting the terminal amino-modified silicone oil in the modified polyurethane with the modified isocyanate, which improves the mechanical properties and wear resistance of the floor coating and introduces BO bonds to improve heat resistance.

Benefits of technology

It improves the mechanical properties, wear resistance, and weather resistance of floor coatings, thereby extending their service life and ease of application.

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Abstract

The application discloses a wear-resistant water-based floor paint and a preparation method thereof. The wear-resistant water-based floor paint comprises the following raw materials in parts by weight: 60-70 parts of epoxy acrylic resin, 15-30 parts of modified polyurethane, 15-25 parts of a curing agent, 20-30 parts of a filler, 5-15 parts of deionized water, 2-3 parts of an antistatic agent, 1-3 parts of a leveling agent, 1-2 parts of a dispersing agent and 0.5-1 part of a defoaming agent. The modified polyurethane is added into the floor paint, so that the modified polyurethane participates in the curing process of the floor paint. The modified polyurethane can form a complex cross-linking structure with the epoxy acrylic resin. The cross-linking structure can better increase the wear resistance of the floor paint. Meanwhile, the secondary amine group, the amino methyl acid ester group and the substituted urea group can form a large number of hydrogen bonds with ether bonds in the epoxy acrylic resin, so that the mechanical properties of the floor paint are better improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of coatings, in particular to a wear-resistant water-based floor paint and a preparation method thereof. BACKGROUND

[0002] In modern production and living space, floor painting is considered an essential measure for building protection and decoration as the direct contact layer for vehicle access and personnel activities. The primary function of floor paint is to absorb and disperse static and dynamic loads, so the paint film must have sufficient impact resistance, wear resistance, chemical resistance, slip resistance, easy cleaning and decoration functions, etc.

[0003] Epoxy acrylic floor paint is a common floor paint on the market, mainly composed of epoxy acrylic resin and additives. It has excellent properties such as strong acid and alkali resistance, pressure resistance, impact resistance, mildew and dust resistance, slip resistance, and anti-static, electromagnetic wave, etc. Moreover, it has bright and colorful colors, and is easy to clean. However, the current mainstream solvent-based epoxy floor paint will emit a certain amount of volatile organic compounds during production, construction and curing process, and will release a large amount of toxic substances during use, causing damage to the environment and human body. However, water-based floor paint has the disadvantages of low paint film density and poor workability. SUMMARY

[0004] In order to solve the above problems, the purpose of the present application is to provide a wear-resistant water-based floor paint and a preparation method thereof.

[0005] The purpose of the present application can be achieved by the following technical scheme: a wear-resistant water-based floor paint and a preparation method thereof comprising the following raw materials by weight: 60-70 parts of epoxy acrylic resin, 15-30 parts of modified polyurethane, 15-25 parts of curing agent, 20-30 parts of filler, 5-15 parts of deionized water, 2-3 parts of antistatic agent, 1-3 parts of leveling agent, 1-2 parts of dispersing agent and 0.5-1 parts of defoaming agent.

[0006] The wear-resistant water-based floor paint is prepared by the following steps: adding epoxy acrylic resin, filler, deionized water, antistatic agent, leveling agent and dispersing agent into a stirring container, stirring at a stirring rate of 800-1000 rpm and room temperature for 20-30 min, then adding defoaming agent, curing agent and modified polyurethane, stirring and mixing to obtain a wear-resistant water-based floor paint.

[0007] The modified polyurethane is prepared by the following steps:

[0008] A1: dimethyldichlorosilane, methyl dichlorosilane, toluene and deionized water were added into a container, stirred at room temperature for 30-40 min, p-trifluoromethyl phenylboronic acid and concentrated sulfuric acid were added into the container, reacted at 50°C under the condition of stirring rate of 100-200 rpm for 4 h, pentamethyldisiloxane was added, and the reaction was continued for 1 h, and then the mixture was allowed to stand and separate, rotary evaporation was performed, anhydrous ethanol was washed for three times, deionized water was washed until neutral, and vacuum drying was performed at 70°C for 12 h to obtain a modified silicone oil, the mass fraction of concentrated sulfuric acid was 70%, and the amount ratio of dimethyldichlorosilane, methyl dichlorosilane, toluene, deionized water, p-trifluoromethyl phenylboronic acid, concentrated sulfuric acid and pentamethyldisiloxane was 1 mol: 0.05 mol: 150-200 mL: 400-500 mL: 0.1 mol: 15 g: 0.01 mol;

[0009] During the reaction, dimethyldichlorosilane and methyl dichlorosilane were hydrolyzed in the mixed system of water and toluene to obtain hydroxyl silane, then the boronic acid group of p-trifluoromethyl phenylboronic acid reacted with the hydroxyl silane to undergo dehydration condensation, and then pentamethyldisiloxane was added to cap to obtain a modified silicone oil containing boron and hydrogen in the main chain and end hydrogen;

[0010] A2: the modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst were added into a container, reacted at 60°C under the condition of stirring rate of 200-300 rpm for 12-16 h, and then cooled to obtain an amino-terminated modified silicone oil, and the amount ratio of the modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst was 150-200 g: 0.5-0.8 mol: 0.5-1 mL;

[0011] During the reaction, the alkyl group in 3-buten-1-amine reacted with the modified silicone oil to undergo a silicon-hydrogen addition reaction, the silicone oil introduced a side chain and amino groups at both ends, and an amino-terminated modified silicone oil was obtained;

[0012] A3: under the condition of nitrogen protection, 4-(4-hydroxyphenyl) phthalazine-1-ol, 4,4'-diphenyl methane diisocyanate and N,N-dimethylformamide were added into a container, stirred and mixed, stannous octoate was added, reacted at 110°C under the condition of stirring rate of 200-300 rpm for 4 h to obtain a modified isocyanate, and the amount ratio of 4-(4-hydroxyphenyl) phthalazine-1-ol, 4,4'-diphenyl methane diisocyanate, N,N-dimethylformamide and stannous octoate was 0.2-0.22 mol: 0.1 mol: 100-120 mL: 2-3 mL;

[0013] During the reaction, the hydroxyl group in 4-(4-hydroxyphenyl) phthalazine-1-ol reacted with the secondary amine and the isocyanate to obtain a modified isocyanate;

[0014] A4: The amino-terminated modified silicone oil, stannous octoate and N,N-dimethylformamide are added into a container, mixed under stirring, the modified isocyanate is added, and the reaction is carried out at a stirring rate of 200-300 rpm and 80°C for 4-6 h, then the ethylene glycol is added, and the reaction is continued for 2-3 h, followed by rotary evaporation, cooling, and washing with deionized water for three times to obtain the modified polyurethane, and the amount ratio of the amino-terminated modified silicone oil, stannous octoate, N,N-dimethylformamide, modified isocyanate and ethylene glycol is 150-200 g: 2-3 mL: 300-400 mL: 0.2-0.5 mol: 0.3-0.6 mol;

[0015] During the reaction, the amino group in the amino-terminated modified silicone oil reacts with the isocyanate in the modified isocyanate, and then the ethylene glycol is added for capping to obtain the modified polyurethane;

[0016] Further, the curing agent is diethylenetriamine;

[0017] Further, the filler is one or more of quartz powder, barium sulfate powder and titanium dioxide powder;

[0018] Further, the antistatic agent is a quaternary ammonium salt antistatic agent;

[0019] Further, the leveling agent is a polyether siloxane copolymer;

[0020] Further, the dispersing agent is a polycarboxylic acid sodium salt;

[0021] Further, the defoaming agent is a polyether type defoaming agent;

[0022] The present application provides a wear-resistant water-based floor paint and a preparation method thereof, by adding modified polyurethane into the floor paint, the modified polyurethane participates in the curing process of the floor paint, the modified polyurethane can react with the epoxy acrylate resin to form a complex cross-linking structure, and the cross-linking structure can better increase the wear resistance of the floor paint; the modified polyurethane is obtained by reacting the amino-modified silicone oil with the modified isocyanate, and then being capped by ethylene glycol, a large number of secondary amine groups, amino acid ester groups and substituted urea groups are generated in the reaction process, these structures can form a large number of hydrogen bonds with the ether bond in the epoxy acrylate resin, and the molecular forces between the amino acid ester groups can also be used, these actions strengthen the structure of the floor paint and better improve the mechanical properties thereof, the modified isocyanate contains a twisted, non-coplanar structure of benzophenone biphenyl structure, the rigid non-coplanar structure is introduced into the cross-linking network by participating in the curing of the floor paint, so that the floor paint has good mechanical properties and high temperature resistance, the B-O bond with higher bond energy than the Si-O bond is introduced into the main chain of the modified silicone oil, so that the silicone oil has good heat resistance, and the B-O bond can also form hydrogen bonds with other groups, thereby improving the wear resistance of the floor paint, and the fluorine groups are also introduced to improve the weather resistance of the floor paint, so that the floor paint has a longer service life. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0024] Embodiment 1

[0025] The modified polyurethane is prepared by the following steps:

[0026] A1: dimethyldichlorosilane, methyldichlorosilane, toluene and deionized water are added to a container, stirred at room temperature for 40 min, p-trifluoromethylphenylboric acid and concentrated sulfuric acid are added to the container, reacted at a stirring rate of 200 rpm and 50 DEG C for 4 h, pentamethyldisiloxane is added, and the reaction is continued for 1 h, the liquid is separated by standing, rotary evaporation, washed with anhydrous ethanol for three times, washed with deionized water until neutral, and vacuum dried at 70 DEG C for 12 h to obtain the modified silicone oil, the mass fraction of concentrated sulfuric acid is 70%, and the amount of dimethyldichlorosilane, methyldichlorosilane, toluene, deionized water, p-trifluoromethylphenylboric acid, concentrated sulfuric acid and pentamethyldisiloxane is 1 mol: 0.05 mol: 150 mL: 400 mL: 0.1 mol: 15 g: 0.01 mol;

[0027] A2: Modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst were added into a container, reacted for 12 h at 60 °C with stirring rate of 300 rpm, cooled to obtain an amino-terminated modified silicone oil, the amount ratio of modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst was 150 g:0.5 mol:0.5 mL;

[0028] A3: 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate and N,N-dimethylformamide were added into a container, stirred and mixed, stannous octoate was added, reacted for 4 h at 110 °C with stirring rate of 200 rpm to obtain a modified isocyanate, the amount ratio of 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate, N,N-dimethylformamide and stannous octoate was 0.2 mol:0.1 mol:100 mL:2 mL;

[0029] A4: The amino-terminated modified silicone oil, stannous octoate and N,N-dimethylformamide were added into a container, stirred and mixed, the modified isocyanate was added, reacted for 6 h at 80 °C with stirring rate of 200 rpm, then ethylene glycol was added, continued to react for 3 h, rotary evaporation, cooled, washed with deionized water for three times to obtain a modified polyurethane, the amount ratio of amino-terminated modified silicone oil, stannous octoate, N,N-dimethylformamide, modified isocyanate and ethylene glycol was 150 g:2 mL:300 mL:0.2 mol:0.3 mol;

[0030] Example 2

[0031] The modified polyurethane was prepared by the following steps:

[0032] A1: Dimethyldichlorosilane, methyl dichlorosilane, toluene and deionized water were added into a container, stirred for 40 min at room temperature, p-trifluoromethylphenylboronic acid and concentrated sulfuric acid were added into the container, reacted for 4 h at 50 °C with stirring rate of 100 rpm, then pentamethyldisiloxane was added, continued to react for 1 h, static separation, rotary evaporation, washed with anhydrous ethanol for three times, washed with deionized water until neutral, vacuum dried at 70 °C for 12 h to obtain a modified silicone oil, the mass fraction of concentrated sulfuric acid was 70%, the amount ratio of dimethyldichlorosilane, methyl dichlorosilane, toluene, deionized water, p-trifluoromethylphenylboronic acid, concentrated sulfuric acid and pentamethyldisiloxane was 1 mol:0.05 mol:200 mL:500 mL:0.1 mol:15 g:0.01 mol;

[0033] A2: Modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst were added into a container, reacted for 12-16 h at 60 °C with stirring rate of 300 rpm, cooled to obtain an amino-terminated modified silicone oil, and the amount ratio of modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst was 200 g:0.5 mol:0.5 mL;

[0034] A3: 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate and N,N-dimethylformamide were added into a container, stirred and mixed, stannous octoate was added, reacted for 4 h at 110 °C with stirring rate of 200 rpm to obtain a modified isocyanate, and the amount ratio of 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate, N,N-dimethylformamide and stannous octoate was 0.22 mol:0.1 mol:100 mL:2 mL;

[0035] A4: The amino-terminated modified silicone oil, stannous octoate and N,N-dimethylformamide were added into a container, stirred and mixed, the modified isocyanate was added, reacted for 4 h at 80 °C with stirring rate of 200 rpm, then ethylene glycol was added, and the reaction was continued for 2-3 h, rotary evaporation was performed, cooled, washed with deionized water for three times to obtain a modified polyurethane, and the amount ratio of amino-terminated modified silicone oil, stannous octoate, N,N-dimethylformamide, modified isocyanate and ethylene glycol was 200 g:2 mL:400 mL:0.2-0.5 mol:0.3 mol;

[0036] Example 3

[0037] The modified polyurethane was prepared by the following steps:

[0038] A1: Dimethyldichlorosilane, methyl dichlorosilane, toluene and deionized water were added into a container, stirred for 40 min at room temperature, p-trifluoromethylphenylboronic acid and concentrated sulfuric acid were added into the container, reacted for 4 h at 50 °C with stirring rate of 200 rpm, pentamethyldisiloxane was added, and the reaction was continued for 1 h, the liquid was separated by standing, rotary evaporation was performed, washed with anhydrous ethanol for three times, washed with deionized water until neutral, and vacuum dried at 70 °C for 12 h to obtain a modified silicone oil, and the amount ratio of dimethyldichlorosilane, methyl dichlorosilane, toluene, deionized water, p-trifluoromethylphenylboronic acid, concentrated sulfuric acid and pentamethyldisiloxane was 1 mol:0.05 mol:200 mL:500 mL:0.1 mol:15 g:0.01 mol;

[0039] A2: The modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst were added into a container, reacted at 60°C for 12-16h with stirring rate of 300rpm, cooled to obtain the amino-terminated modified silicone oil, and the amount ratio of the modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst was 200g:0.8mol:1mL;

[0040] A3: 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate and N,N-dimethylformamide were added into a container, stirred and mixed, stannous octoate was added, reacted at 110°C for 4h with stirring rate of 300rpm to obtain the modified isocyanate, and the amount ratio of 4-(4-hydroxyphenyl)phthalazine-1-ol, 4,4'-diphenylmethane diisocyanate, N,N-dimethylformamide and stannous octoate was 0.22mol:0.1mol:120mL:3mL;

[0041] A4: The amino-terminated modified silicone oil, stannous octoate and N,N-dimethylformamide were added into a container, stirred and mixed, the modified isocyanate was added, reacted at 80°C for 6h with stirring rate of 300rpm, then ethylene glycol was added and reacted for another 3h, rotary evaporated, cooled, washed with deionized water for three times to obtain the modified polyurethane, and the amount ratio of the amino-terminated modified silicone oil, stannous octoate, N,N-dimethylformamide, modified isocyanate and ethylene glycol was 200g:3mL:400mL:0.5mol:0.6mol;

[0042] Example 4

[0043] A wear-resistant water-based floor paint and a preparation method thereof include the following raw materials by weight: 60 parts of commercially available EBECRYL 3500 epoxy acrylate resin, 15 parts of the modified polyurethane of Example 1, 15 parts of commercially available diethylenetriamine curing agent, 20 parts of commercially available QianDong 800 mesh quartz powder filler, 5 parts of deionized water, 2 parts of commercially available M-550 antistatic agent, 1 part of commercially available TEGO 410 leveling agent, 1 part of commercially available Nuopko 5040 dispersant and 0.5 part of commercially available THIX-286 defoaming agent;

[0044] The wear-resistant water-based floor paint is prepared by the following steps: the epoxy acrylate resin, filler, deionized water, antistatic agent, leveling agent and dispersant are added into a stirring container, stirred at room temperature for 30min with stirring rate of 800rpm, then the defoaming agent, curing agent and modified polyurethane are added, stirred and mixed to obtain a wear-resistant water-based floor paint;

[0045] Example 5

[0046] A wear-resistant water-based floor paint and a preparation method thereof include the following raw materials by weight: 70 parts of commercially available EBECRYL 3500 epoxy acrylate resin, 30 parts of modified polyurethane of Example 2, 25 parts of commercially available diethylene triamine curing agent, 30 parts of commercially available R-312 barium sulfate powder filler, 15 parts of deionized water, 2 parts of commercially available M-550 antistatic agent, 1 part of commercially available TEGO 410 leveling agent, 1 part of commercially available Nopco 5040 dispersant, and 0.5 parts of commercially available THIX-286 defoaming agent;

[0047] The wear-resistant water-based floor paint is prepared by the following steps: adding the epoxy acrylate resin, the filler, the deionized water, the antistatic agent, the leveling agent, and the dispersant into a stirring container, stirring at a stirring rate of 1000 rpm and under room temperature conditions for 20 min, and then adding the defoaming agent, the curing agent, and the modified polyurethane, stirring and mixing to obtain a wear-resistant water-based floor paint;

[0048] Example 6

[0049] A wear-resistant water-based floor paint and a preparation method thereof include the following raw materials by weight: 70 parts of commercially available EBECRYL 3500 epoxy acrylate resin, 30 parts of modified polyurethane of Example 3, 25 parts of commercially available diethylene triamine curing agent, 30 parts of commercially available R-616S titanium dioxide powder filler, 15 parts of deionized water, 3 parts of commercially available M-550 antistatic agent, 3 parts of commercially available TEGO 410 leveling agent, 2 parts of commercially available Nopco 5040 dispersant, and 1 part of commercially available THIX-286 defoaming agent;

[0050] The wear-resistant water-based floor paint is prepared by the following steps: adding the epoxy acrylate resin, the filler, the deionized water, the antistatic agent, the leveling agent, and the dispersant into a stirring container, stirring at a stirring rate of 1000 rpm and under room temperature conditions for 30 min, and then adding the defoaming agent, the curing agent, and the modified polyurethane, stirring and mixing to obtain a wear-resistant water-based floor paint;

[0051] Comparative Example 1

[0052] Comparative Example 1 replaces the modified polyurethane in Example 6 with commercially available Covestro hydroxyl polyurethane, and other steps are exactly the same as in Example 6 to obtain a wear-resistant water-based floor paint;

[0053] Comparative Example 2

[0054] Comparative Example 2 replaces the modified polyurethane in Example 6 with a mixture of commercially available Covestro hydroxyl polyurethane and commercially available Huaxiangkejie hydroxyl silicone oil, wherein the ratio of the amount of commercially available Covestro hydroxyl polyurethane to the amount of commercially available Huaxiangkejie hydroxyl silicone oil is 5 g:1 g, and other steps are exactly the same as in Example 6 to obtain a wear-resistant water-based floor paint;

[0055] The abrasion-resistant water-based floor paint prepared in Example 4, Example 5, Example 6, Comparative Example 1 and Comparative Example 2 was evenly applied on a sample board, and cured at room temperature for 4 h, and then its abrasion resistance was measured according to GB / T 1768-2006, its pencil hardness, adhesion, acid resistance, alkali resistance, salt water resistance and water resistance were measured according to GB / T 22374-2018, and its weather resistance was measured according to GB / T 1865-2009, and the specific test results are as follows:

[0056]

[0057]

[0058] As can be seen from the test results in the table, by comparing Example 4, Example 5 and Example 6 with Comparative Example 1 and Comparative Example 2, it can be found that under the same conditions, the abrasion resistance of Example 4, Example 5 and Example 6 is obviously better than that of Comparative Example 1 and Comparative Example 2, which shows that the presence of modified polyurethane can better improve the abrasion resistance of the floor paint, and at the same time, the hardness and adhesion of the floor paint are also improved to a certain extent, and due to the addition of modified polyurethane, the weather resistance of the floor paint is obviously improved.

[0059] The above content is only an example and description of the concept of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the concept of the present application or exceed the scope defined by the present claims, and they should belong to the protection scope of the present application.

Claims

1. A wear resistant waterborne floor paint characterized by: The raw materials include 60-70 parts of epoxy acrylic resin, 15-30 parts of modified polyurethane, 15-25 parts of curing agent, 20-30 parts of filler, 5-15 parts of deionized water, 2-3 parts of antistatic agent, 1-3 parts of leveling agent, 1-2 parts of dispersing agent and 0.5-1 part of defoaming agent; The wear-resistant water-based floor paint is prepared by the following steps: adding epoxy acrylic resin, filler, deionized water, antistatic agent, leveling agent and dispersing agent into a stirring container, stirring at a stirring rate of 800-1000 rpm and room temperature for 20-30 min, then adding defoaming agent, curing agent and modified polyurethane, stirring and mixing to obtain a wear-resistant water-based floor paint; The modified polyurethane is prepared by the following steps: A1: adding dimethyldichlorosilane, methyl dichlorosilane, toluene and deionized water into a container, stirring at room temperature for 30-40 min, adding p-trifluoromethyl phenylboronic acid and concentrated sulfuric acid into the container, reacting at a stirring rate of 100-200 rpm and 50°C for 4 h, adding pentamethyldisiloxane, continuing to react for 1 h, standing and separating, rotary evaporation, washing with anhydrous ethanol for 3 times, washing with deionized water until neutral, vacuum drying at 70°C for 12 h to obtain modified silicone oil; A2: adding modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst into a container, reacting at a stirring rate of 200-300 rpm and 60°C for 12-16 h, cooling to obtain amino-terminated modified silicone oil; A3: under the condition of nitrogen protection, adding 4-(4-hydroxyphenyl) phthalazine-1-ol, 4,4'-diphenyl methane diisocyanate and N,N-dimethylformamide into a container, stirring and mixing, adding stannous octoate, reacting at a stirring rate of 200-300 rpm and 110°C for 4 h to obtain modified isocyanate; A4: adding amino-terminated modified silicone oil, stannous octoate and N,N-dimethylformamide into a container, stirring and mixing, adding modified isocyanate, reacting at a stirring rate of 200-300 rpm and 80°C for 4-6 h, then adding ethylene glycol, continuing to react for 2-3 h, rotary evaporation, cooling, washing with deionized water for 3 times to obtain modified polyurethane.

2. A wear resistant water based floor paint according to claim 1, characterized in that: In step A1, the mass fraction of concentrated sulfuric acid is 70%, and the amount ratio of dimethyldichlorosilane, methyl dichlorosilane, toluene, deionized water, p-trifluoromethyl phenylboronic acid, concentrated sulfuric acid and pentamethyldisiloxane is 1 mol: 0.05 mol: 150-200 mL: 400-500 mL: 0.1 mol: 15 g: 0.01 mol; In step A2, the amount ratio of modified silicone oil, 3-buten-1-amine and KARSTEDT catalyst is 150-200 g: 0.5-0.8 mol: 0.5-1 mL; In step A3, the amount ratio of 4-(4-hydroxyphenyl) phthalazine-1-ol, 4,4'-diphenyl methane diisocyanate, N,N-dimethylformamide and stannous octoate is 0.2-0.22 mol: 0.1 mol: 100-120 mL: 2-3 mL; In the A4 step, the amount ratio of the terminal amino-modified silicone oil, stannous octoate, N,N-dimethylformamide, modified isocyanate and ethylene glycol is 150-200 g: 2-3 mL: 300-400 mL: 0.2-0.5 mol: 0.3-0.6 mol.

3. A wear resistant water based floor paint according to claim 1, characterized in that: The curing agent is diethylenetriamine.

4. The abrasion resistant water-based floor paint according to claim 1, characterized in that: The filler is one or more of quartz powder, barium sulfate powder and titanium dioxide powder.

5. The abrasion resistant water-based floor paint according to claim 1, characterized in that: The antistatic agent is a quaternary ammonium salt antistatic agent.

6. The abrasion resistant water-based floor paint according to claim 1, wherein: The leveling agent is a polyether siloxane copolymer.

7. The abrasion resistant water-based floor paint according to claim 1, wherein: The dispersing agent is a polycarboxylic acid sodium salt.

8. The abrasion resistant water-based floor paint according to claim 1, wherein: The defoaming agent is a polyether type defoaming agent.

9. A process for the preparation of a wear resistant water based floor paint as claimed in claim 1, wherein: The epoxy acrylate resin, the filler, deionized water, the antistatic agent, the leveling agent and the dispersing agent are added into a stirring container, stirred at a stirring rate of 800-1000 rpm and at room temperature for 20-30 min, and then the defoaming agent, the curing agent and the modified polyurethane are added and stirred to obtain a wear-resistant water-based floor paint.

Citation Information

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