Waterproof plugging agent and production method thereof

Abstract

The invention relates to the technical field of building materials, and provides a waterproof plugging agent and a production method thereof. The waterproof plugging agent comprises the following raw material components in parts by weight: 40-52 parts of aluminate cement, 10-14 parts of a white carbon black composite material, 7-9 parts of gypsum, 12-17 parts of a filler and 5-15 parts of a waterproof agent, the raw materials of the white carbon black composite material comprise aniline-2, 4-disulfonic acid and white carbon black; the raw material of the filling agent comprises glass fibers. According to the technical scheme, the problem of low impermeability pressure during application of the waterproof plugging agent in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building materials, and in particular to a waterproof leak-proofing agent and a production method thereof. Background Art

[0002] In construction projects, waterproofing and leak plugging are key links to ensure the safety and durability of building structures. Traditional waterproofing and leak plugging agents can meet basic waterproofing needs to a certain extent, but with the development of the construction industry and the continuous improvement of people's requirements for building quality, their limitations have gradually become apparent.

[0003] The coating formed by the existing waterproof plugging agent has limited anti-seepage pressure, and it is difficult to effectively prevent water penetration when facing complex building environments and high water pressure. For example, in some underground buildings, tunnel projects and hydraulic structures, due to long-term erosion by groundwater, rainwater, etc., and high water pressure, ordinary waterproof plugging agent coatings are prone to leakage, which not only affects the normal use of the building, but may also cause structural damage, increase maintenance costs and safety hazards.

[0004] From the perspective of market demand, both the rising high-rise buildings in cities and the increasingly improved infrastructure construction have put forward more stringent requirements for waterproof and leak-proof materials. In commercial buildings, once leakage occurs, it may cause damage to the interior decoration and equipment failure, which in turn affects the normal operation of the business and causes huge economic losses. From the perspective of industry development trends, green, environmentally friendly, and high-performance building materials are the future direction, and improving the anti-seepage pressure of the waterproof and leak-proof agent coating is a key step towards this goal.

[0005] In order to overcome these problems, the development of a waterproof plugging agent with higher anti-seepage pressure has become an urgent need in the industry. Summary of the invention

[0006] The invention provides a waterproof plugging agent and a production method thereof, which solves the problem of low anti-seepage pressure when the waterproof plugging agent is used in the related art.

[0007] The technical solution of the present invention is as follows: The present invention provides a waterproof plugging agent, wherein the raw materials include the following components in parts by weight: 40-52 parts of aluminate cement, 10-14 parts of white carbon black composite material, 7-9 parts of gypsum, 12-17 parts of filler, and 5-15 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The raw material of the filler includes glass fiber.

[0008] As a further technical solution, the mass ratio of the aniline-2,4-disulfonic acid to white carbon black is 2-3:17.

[0009] In the present invention, by adjusting the mass ratio of aniline-2,4-disulfonic acid to white carbon black to 2-3:17, the anti-seepage pressure of the waterproof plugging agent during application is further improved.

[0010] As a further technical solution, the preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid is added into ethanol, white carbon black is added, the mixture is mixed, and the mixture is dried to obtain a white carbon black composite material.

[0011] In the present invention, aniline-2,4-disulfonic acid is used to treat white carbon black to obtain a white carbon black composite material, which is then mixed with other components to obtain a waterproof plugging agent, thereby further improving the anti-seepage pressure of the waterproof plugging agent when used.

[0012] As a further technical solution, the mixing temperature is 60-75° C. and the mixing time is 1-1.5 h.

[0013] As a further technical solution, the raw materials of the filler also include zirconium hydrogen phosphate and 2,5-dihydroxytoluene.

[0014] In the present invention, the filler consists of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene, which improves the early compressive strength of the waterproof plugging agent.

[0015] As a further technical solution, the mass ratio of the glass fiber, zirconium hydrogen phosphate, and 2,5-dihydroxytoluene is 15:3~5:0.4.

[0016] In the present invention, the early compressive strength of the waterproof plugging agent is further improved by adjusting the mass ratio of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene to 15:3-5:0.4.

[0017] As a further technical solution, the preparation method of the filler comprises the following steps: A1, adding zirconium hydrogen phosphate and 2,5-dihydroxytoluene into ethanol, mixing evenly, and drying to obtain pretreated zirconium hydrogen phosphate; A2, mixing the pretreated zirconium hydrogen phosphate with glass fiber, and ball milling to obtain the filler; When the mixture is uniformly mixed as described in A1, the temperature is 70-80°C.

[0018] In the present invention, zirconium hydrogen phosphate is treated with 2,5-dihydroxytoluene to obtain pretreated zirconium hydrogen phosphate, which is then combined with glass fiber to obtain a filler, thereby further improving the early compressive strength of the waterproof plugging agent.

[0019] As a further technical solution, the waterproofing agent includes one or more of anhydrous aluminum chloride, ferric chloride, and aluminum sulfate.

[0020] The present invention also proposes a method for preparing the waterproof plugging agent, comprising the following steps: The components are mixed to obtain a waterproof plugging agent.

[0021] As a further technical solution, the mixing temperature is 25-35°C.

[0022] The working principle and beneficial effects of the present invention are: In the present invention, aluminate cement is selected, which has the characteristics of compensating shrinkage, high strength, wear resistance and chemical corrosion resistance, so that it can be used for waterproofing, plugging leaks, sealing cracks, etc. The white carbon black composite material has good dispersibility, can effectively fill the tiny pores inside the aluminate cement, and quickly increase the density of the material; the composite material composed of aniline-2,4-disulfonic acid and white carbon black prevents the white carbon black from agglomerating in the system, makes the white carbon black dispersed evenly, and improves the anti-seepage pressure of the waterproof plugging agent when used. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the following comparative examples and embodiments, the aluminate cement model is CA-60, the particle size of white carbon black is 800 mesh, and the glass fiber has a diameter of 13 μm and a length of 3 mm.

[0025] Example 1 A waterproof plugging agent, the raw materials include the following components in parts by weight: 52 parts of aluminate cement, 14 parts of white carbon black composite material, 9 parts of gypsum, 17 parts of filler, and 15 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The filler is glass fiber; The mass ratio of aniline-2,4-disulfonic acid to white carbon black is 6:17; The preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid was added to ethanol, white carbon black was added, mixed at 75° C. for 1 hour, and dried to obtain a white carbon black composite material; The waterproofing agent is anhydrous aluminum chloride; The preparation method of the waterproof plugging agent comprises the following steps: The components were mixed at 35°C to obtain a waterproof plugging agent.

[0026] Example 2 A waterproof plugging agent, the raw materials include the following components in parts by weight: 40 parts of aluminate cement, 10 parts of white carbon black composite material, 7 parts of gypsum, 12 parts of filler, and 5 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The filler is glass fiber; The mass ratio of aniline-2,4-disulfonic acid to white carbon black is 1:20; The preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid was added to ethanol, white carbon black was added, mixed at 60° C. for 1.5 h, and dried to obtain a white carbon black composite material; The waterproofing agent is ferric chloride; The preparation method of the waterproof plugging agent comprises the following steps: The components were mixed at 25°C to obtain a waterproof plugging agent.

[0027] Example 3 A waterproof plugging agent, the raw materials include the following components in parts by weight: 45 parts of aluminate cement, 12 parts of white carbon black composite material, 8 parts of gypsum, 15 parts of filler, and 10 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The filler is glass fiber; The mass ratio of aniline-2,4-disulfonic acid to white carbon black is 1:17; The preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid was added to ethanol, white carbon black was added, mixed at 65° C. for 1.2 h, and dried to obtain a white carbon black composite material; The waterproofing agent is aluminum sulfate; The preparation method of the waterproof plugging agent comprises the following steps: The components were mixed at 30°C to obtain a waterproof plugging agent.

[0028] Example 4 The only difference between this embodiment and embodiment 3 is that the mass ratio of aniline-2,4-disulfonic acid to white carbon black in this embodiment is 4:17.

[0029] Example 5 The only difference between this embodiment and embodiment 4 is that the mass ratio of aniline-2,4-disulfonic acid to white carbon black in this embodiment is 2:17.

[0030] Example 6 The only difference between this embodiment and embodiment 4 is that the mass ratio of aniline-2,4-disulfonic acid to white carbon black in this embodiment is 3:17.

[0031] Example 7 A waterproof plugging agent, the raw materials include the following components in parts by weight: 45 parts of aluminate cement, 12 parts of white carbon black composite material, 8 parts of gypsum, 15 parts of filler, and 10 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The fillers are glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene; The mass ratio of aniline-2,4-disulfonic acid to white carbon black is 1:17; The preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid was added to ethanol, white carbon black was added, mixed at 65° C. for 1.2 h, and dried to obtain a white carbon black composite material; The mass ratio of glass fiber, zirconium hydrogen phosphate, and 2,5-dihydroxytoluene is 15:6:0.4; The preparation method of the filler comprises the following steps: A1. Add zirconium hydrogen phosphate and 2,5-dihydroxytoluene into ethanol, mix evenly at 75° C., and dry to obtain pretreated zirconium hydrogen phosphate; A2, mixing the pretreated zirconium hydrogen phosphate with glass fiber, and ball milling to obtain a filler; The waterproofing agent is aluminum sulfate; The preparation method of the waterproof plugging agent comprises the following steps: The components were mixed at 30°C to obtain a waterproof plugging agent.

[0032] Example 8 The only difference between this embodiment and embodiment 7 is that the mass ratio of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene in this embodiment is 15:2:0.4.

[0033] Example 9 The only difference between this embodiment and embodiment 7 is that the mass ratio of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene in this embodiment is 15:3:0.4.

[0034] Example 10 The only difference between this embodiment and embodiment 7 is that the mass ratio of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene in this embodiment is 15:5:0.4.

[0035] Comparative Example 1 The difference between this comparative example and Example 2 is that the white carbon black composite material in this comparative example is replaced by an equal amount of white carbon black.

[0036] Experimental Example 1 The waterproof plugging agent prepared in Examples 1 to 6 and Comparative Example 1 was tested with reference to the method in the national standard GB 23440-2009 "Inorganic waterproof plugging material". The waterproof performance test was conducted on the anti-seepage pressure. The waterproof plugging agent was mixed with water in a mass ratio of 1:0.3 and then brushed on the water-facing and water-retaining surfaces of the benchmark mortar test block that had been cured for 1 day. The application was divided into two layers, and the application time should not exceed 5 minutes. The total thickness of the coating was 2 mm. The coating was moisturized and cured for 24 hours according to the method 6.1.2 in GB 23440-2009, and then cured to 7 days of age to form a coating test piece. The coating test piece was taken out and rinsed clean, the surface was air-dried, and an anti-seepage test was performed. If the pressure was increased to 15 MPa and the constant pressure was not permeable for 1 hour, the pressure should be stopped. The anti-seepage pressure of the coating test piece is the maximum water pressure when four of the six test pieces in each group did not seep water.

[0037] The test results are shown in Table 1.

[0038]

[0039] Comparing Example 2 with Comparative Example 1, it is shown that in the present invention, aniline-2,4-disulfonic acid is used to treat white carbon black to obtain a white carbon black composite material, which improves the anti-seepage pressure when the waterproof plugging agent is used.

[0040] Comparing Examples 5-6 with Examples 3-4, it is shown that the anti-seepage pressure of the waterproof plugging agent is further improved by adjusting the mass ratio of aniline-2,4-disulfonic acid to white carbon black to 2-3:17 in the present invention.

[0041] Experimental Example 2 The waterproof plugging agents prepared in Examples 3 and 7 to 10 were used to prepare samples at a mass ratio of the waterproof plugging agent to water of 1:0.3. The compressive strength of the samples was tested according to the method in GB 23440-2009 "Inorganic waterproof plugging materials". The test results are shown in Table 2.

[0042] Table 2 Compressive strength test results

[0043] Comparing Examples 7 to 10 with Example 3, it is shown that when the filler in the present invention is composed of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene, the early compressive strength of the waterproof plugging agent is improved. Comparing Examples 9 to 10 with Examples 7 to 8, it is shown that by adjusting the mass ratio of glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene to 15:3 to 5:0.4, the early compressive strength of the waterproof plugging agent is further improved.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof plugging agent, characterized in that: The raw materials include the following components in parts by weight: 40-52 parts of aluminate cement, 10-14 parts of white carbon black composite material, 7-9 parts of gypsum, 12-17 parts of filler, and 5-15 parts of waterproofing agent; The raw materials of the white carbon black composite material include aniline-2,4-disulfonic acid and white carbon black; The raw material of the filler includes glass fiber.

2. A waterproof plugging agent according to claim 1, characterized in that: The mass ratio of the aniline-2,4-disulfonic acid to white carbon black is 2-3:

17.

3. A waterproof plugging agent according to claim 1, characterized in that: The preparation method of the white carbon black composite material comprises the following steps: Aniline-2,4-disulfonic acid is added into ethanol, white carbon black is added, the mixture is mixed, and the mixture is dried to obtain a white carbon black composite material.

4. The method for preparing a waterproof plugging agent according to claim 3, characterized in that: The mixing temperature is 60-75° C. and the mixing time is 1-1.5 h.

5. A waterproof plugging agent according to claim 1, characterized in that: The raw materials of the filler also include zirconium hydrogen phosphate and 2,5-dihydroxytoluene.

6. A waterproof plugging agent according to claim 5, characterized in that: The mass ratio of the glass fiber, zirconium hydrogen phosphate and 2,5-dihydroxytoluene is 15:3-5:0.

4.

7. A waterproof plugging agent according to claim 5, characterized in that: The preparation method of the filler comprises the following steps: A1, adding zirconium hydrogen phosphate and 2,5-dihydroxytoluene into ethanol, mixing evenly, and drying to obtain pretreated zirconium hydrogen phosphate; A2, mixing the pretreated zirconium hydrogen phosphate with glass fiber, and ball milling to obtain the filler; When the mixture is uniformly mixed as described in A1, the temperature is 70-80°C.

8. The waterproof plugging agent according to claim 1, characterized in that: The waterproofing agent includes one or more of anhydrous aluminum chloride, ferric chloride, and aluminum sulfate.

9. The method for preparing a waterproof plugging agent according to any one of claims 1 to 8, characterized in that: The following steps are involved: The components are mixed evenly to obtain a waterproof plugging agent.

10. The method for preparing a waterproof plugging agent according to claim 9, characterized in that: The mixing temperature is 25-35°C.

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