Flexible liquid waterproof coiled material, preparation method and application

Abstract

The invention provides a flexible liquid waterproof coiled material as well as a preparation method and application thereof, and the flexible liquid waterproof coiled material is prepared from the following raw material components in parts by weight: 30 to 36 parts of polymer emulsion, 28 to 36 parts of emulsified asphalt, 30 to 44 parts of inorganic filler, 0.1 to 0.3 part of coupling agent, 0.1 to 0.4 part of dispersing agent, 0.1 to 0.5 part of defoaming agent, 0.08 to 0.18 part of sterilizing agent and 0.5 to 1.0 part of thickening agent, the preparation method of the flexible liquid waterproof coiled material comprises the following steps: sequentially adding the polymer emulsion, the dispersing agent, the defoaming agent, the sterilizing agent and the coupling agent into a stirring cylinder, and stirring for a first preset time at a first rotating speed; sequentially adding the emulsified asphalt and the inorganic filler into the stirring cylinder, and stirring for a second preset time at a first rotating speed; adding the thickening agent into the stirring cylinder, stirring for a third preset time at the first rotating speed, controlling the rotating speed to the second rotating speed, and stirring for a fourth preset time to form the liquid waterproof coiled material, so that the bonding strength of the liquid waterproof coiled material is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building waterproof materials, and in particular to a flexible liquid waterproof coiled material, a preparation method and an application thereof. Background Art

[0002] In home waterproofing, "rigid walls and soft floors" means that the walls are made of rigid waterproof materials (such as polymer cement waterproof slurry) and the floors are made of flexible waterproof materials (such as polymer cement waterproof coatings, acrylic waterproof coatings, etc.).

[0003] The reasons for adopting the "hard wall and soft ground" combination are as follows:

[0004] Ground: As a horizontal surface, it is more likely to come into contact with water or accumulate moisture. Flexible waterproof materials can better adapt to this environment and provide more reliable waterproofing effects.

[0005] Walls: These are typically finished with ceramic tiles, which require a strong bond to the base layer. Rigid waterproofing materials (such as polymer cement slurry) provide this bond, ensuring the waterproofing of the tiles and the stability of the tile bonding system. Using flexible waterproofing materials for walls, while improving waterproofing, can pose a serious risk of tile falling later. Summary of the Invention

[0006] In view of the above situation, the present invention provides a flexible liquid waterproof roll, a preparation method and an application thereof, to solve the technical problems raised by the background technology.

[0007] The technical solution of the present invention is:

[0008] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0009] 30-36 parts of polymer emulsion, 28-36 parts of emulsified asphalt, 30-44 parts of inorganic filler, 0.1-0.3 parts of coupling agent, 0.1-0.4 parts of dispersant, 0.1-0.5 parts of defoaming agent, 0.08-0.18 parts of fungicide and 0.5-1.0 parts of thickener.

[0010] The flexible liquid waterproof roll material proposed in the present invention has the following beneficial effects:

[0011] This flexible liquid waterproof membrane includes 30-36 parts of polymer emulsion, 28-36 parts of emulsified asphalt, 30-44 parts of inorganic filler, 0.1-0.3 parts of coupling agent, 0.1-0.4 parts of dispersant, 0.1-0.5 parts of defoaming agent, 0.08-0.18 parts of fungicide and 0.5-1.0 parts of thickener, etc. It effectively improves the bonding strength of the liquid waterproof membrane, performs well in both testing and actual application, and solves the problem of brick falling off in the later stage of wall tiling on the "wall soft" waterproof system.

[0012] In addition, the flexible liquid waterproof roll provided by the present invention may also have the following additional technical features:

[0013] Furthermore, the polymer emulsion is one of acrylic emulsion, styrene acrylic emulsion or epoxy modified emulsion.

[0014] Furthermore, the coupling agent is a silane coupling agent or a titanate coupling agent.

[0015] Furthermore, the inorganic filler includes heavy calcium and / or wollastonite.

[0016] A method for preparing a flexible liquid waterproof roll comprises the following steps:

[0017] Putting the polymer emulsion, dispersant, defoamer, bactericide, and coupling agent into a stirring tank in sequence, and stirring at a first speed for a first preset time;

[0018] Putting emulsified asphalt and inorganic filler into the mixing tank in sequence, and stirring at a first speed for a second preset time;

[0019] The thickener is added into the mixing tank, stirred at a first speed for a third preset time, the speed is controlled to a second speed, and stirred for a fourth preset time to form a liquid waterproof membrane.

[0020] In addition, the method for preparing the flexible liquid waterproof roll provided by the present invention may also have the following additional technical features:

[0021] Furthermore, the first rotational speed is 700-800 rpm, and the second rotational speed is 300-400 rpm.

[0022] Furthermore, the first preset time, the second preset time and the third preset time are the same, and the sum of the three times is equal to the fourth preset time.

[0023] Furthermore, the stirring temperature at the first speed is 25-35°C, and the stirring temperature at the second speed is 20-30°C.

[0024] An application of a flexible liquid waterproofing membrane, wherein the flexible liquid waterproofing membrane is applied to a wall base to form a waterproof layer;

[0025] When the waterproof layer is not completely cured, tiles are directly pasted to form a finishing layer.

[0026] Furthermore, the thickness of the waterproof layer is 1.2-1.8 mm, the bonding strength of the liquid waterproof membrane is greater than 0.5 MPa, and the tiles of the finishing layer do not fall off during the impact resistance test within 3 days after construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The tension-deformation curves of manufacturers 1 to 3 of the present invention are shown;

[0028] Figure 2 is a tension-strain curve diagram of different acrylic emulsion models of the present invention;

[0029] Figure 3 Graphs showing the tension-deformation curves of Examples 3 to 7 of the present invention. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to various embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The embodiment of the present invention provides a flexible liquid waterproof membrane, comprising the following raw material components in parts by weight:

[0033] 30-36 parts of polymer emulsion, 28-36 parts of emulsified asphalt, 30-44 parts of inorganic filler, 0.1-0.3 parts of coupling agent, 0.1-0.4 parts of dispersant, 0.1-0.5 parts of defoaming agent, 0.08-0.18 parts of fungicide and 0.5-1.0 parts of thickener.

[0034] Preferably, the polymer emulsion is one of acrylic emulsion, styrene acrylic emulsion or epoxy modified emulsion.

[0035] Preferably, the coupling agent is a silane coupling agent or a titanate coupling agent.

[0036] Preferably, the thickener is a cellulose ether or polyurethane thickener.

[0037] The embodiment of the present invention further provides a method for preparing a flexible liquid waterproof roll, comprising the following steps:

[0038] Putting the polymer emulsion, dispersant, defoamer, bactericide, and coupling agent into a stirring tank in sequence, and stirring at a first speed for a first preset time;

[0039] Putting emulsified asphalt and inorganic filler into the mixing tank in sequence, and stirring at a first speed for a second preset time;

[0040] The thickener is added into the mixing tank, stirred at a first speed for a third preset time, the speed is controlled to a second speed, and stirred for a fourth preset time to form a liquid waterproof membrane.

[0041] Preferably, the first rotational speed is 700-800 rpm, and the second rotational speed is 300-400 rpm.

[0042] Preferably, the first preset time, the second preset time and the third preset time are the same, and the sum of the three times is equal to the fourth preset time.

[0043] Preferably, the stirring temperature at the first speed is 25-35°C, and the stirring temperature at the second speed is 20-30°C.

[0044] The following further describes the embodiments of the present invention in multiple embodiments. The embodiments of the present invention are not limited to the following specific embodiments. Within the scope of the unchanged main rights, appropriate changes can be made to the implementation.

[0045] Example 1

[0046] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0047] 36 parts of polymer emulsion, 0.2 parts of dispersant, 0.2 parts of defoamer, 0.2 parts of fungicide, 0.1 parts of coupling agent, 36 parts of emulsified asphalt, 1 part of inorganic filler, and 1.0 part of thickener.

[0048] In this embodiment, the polymer emulsion is a styrene acrylic emulsion.

[0049] In this embodiment, the coupling agent is a silane coupling agent.

[0050] In this embodiment, the thickener is cellulose ether.

[0051] Example 2

[0052] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0053] 30 parts of polymer emulsion, 0.1 parts of dispersant, 0.1 parts of defoamer, 0.1 parts of fungicide, 0.3 parts of coupling agent, 28 parts of emulsified asphalt, 40.9 parts of inorganic filler, and 0.5 parts of thickener.

[0054] In this embodiment, the polymer emulsion is a styrene acrylic emulsion.

[0055] In this embodiment, the coupling agent is a silane coupling agent.

[0056] In this embodiment, the thickener is cellulose ether.

[0057] Example 3

[0058] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0059] 30 parts of polymer emulsion, 0.1 parts of dispersant, 0.1 parts of defoamer, 0.1 parts of fungicide, 0.3 parts of coupling agent, 28 parts of emulsified asphalt, 40.9 parts of heavy calcium carbonate, and 0.5 parts of thickener.

[0060] In this embodiment, the polymer emulsion is acrylic emulsion.

[0061] Example 4

[0062] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0063] 30 parts of polymer emulsion, 0.1 parts of dispersant, 0.1 parts of defoamer, 0.1 parts of fungicide, 0.6 parts of coupling agent, 28 parts of emulsified asphalt, 40.9 parts of heavy calcium carbonate, and 0.5 parts of thickener.

[0064] In this embodiment, the polymer emulsion is acrylic emulsion.

[0065] Example 5

[0066] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0067] 36 parts of polymer emulsion, 0.1 parts of dispersant, 0.1 parts of defoamer, 0.1 parts of fungicide, 0.6 parts of coupling agent, 22 parts of emulsified asphalt, 40.9 parts of heavy calcium carbonate, and 0.5 parts of thickener.

[0068] In this embodiment, the polymer emulsion is acrylic emulsion.

[0069] Example 6

[0070] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0071] 36 parts of polymer emulsion, 0.1 parts of dispersant, 0.1 parts of defoamer, 0.1 parts of fungicide, 0.6 parts of coupling agent, 22 parts of emulsified asphalt, 30.9 parts of heavy calcium carbonate, 10 parts of wollastonite, and 0.5 parts of thickener.

[0072] In this embodiment, the polymer emulsion is acrylic emulsion.

[0073] Example 7

[0074] A flexible liquid waterproof roll material comprises the following raw material components in parts by weight:

[0075] 36 parts of polymer emulsion, 0.1 part of dispersant, 0.1 part of defoamer, 0.1 part of fungicide, 0.6 part of coupling agent, 22 parts of emulsified asphalt, 20.9 parts of heavy calcium carbonate, 20 parts of wollastonite, and 0.5 part of thickener.

[0076] In this embodiment, the polymer emulsion is acrylic emulsion.

[0077] A method for preparing a flexible liquid waterproof roll comprises the following steps:

[0078] 36 parts of polymer emulsion, 0.1 part of dispersant, 0.1 part of defoamer, 0.1 part of fungicide, and 0.6 part of coupling agent are added into a stirring tank and stirred at a first speed for a first preset time;

[0079] 22 parts of emulsified asphalt, 20.9 parts of heavy calcium carbonate, and 20 parts of wollastonite are sequentially added into the mixing tank, and stirred at a first speed for a second preset time;

[0080] 0.5 parts of the thickener are added to the mixing tank, stirred at a first speed for a third preset time, the speed is controlled to a second speed, and stirred for a fourth preset time to form a liquid waterproof membrane.

[0081] In this embodiment, the first rotational speed is 750 rpm, and the second rotational speed is 350 rpm.

[0082] In this embodiment, the first preset time, the second preset time, and the third preset time are 10 minutes, and the fourth preset time is 30 minutes.

[0083] Preferably, the stirring temperature at the first speed is 30°C, and the stirring temperature at the second speed is 25°C.

[0084] Specifically, the processing requirements for the liquid waterproofing membrane of the present invention are as follows: First, add the polymer emulsion, dispersant, defoamer, fungicide, and coupling agent to a mixing tank and stir rapidly for 10 minutes. Then, add the emulsified asphalt and inorganic filler to the mixing tank in sequence and stir rapidly for 10 minutes. Finally, add the thickener to the mixing tank and stir rapidly for 10 minutes. Then, control the stirring speed and stir slowly for half an hour.

[0085] To ensure the best effect, the raw materials must be added in the order mentioned above during the processing. During the mixing process, the speed should be controlled at 700-800 in the first half hour and at 300-400 in the second half hour. If the speed is too low in the first half hour, the powder will be unevenly dispersed. If the speed is too fast in the second half hour, too many bubbles will be generated and the emulsion will break. The preferred speed is 750 in the first half hour and 350 in the second half hour to achieve the best mixing effect.

[0086] The emulsion, emulsified asphalt, and calcium powder in the slurry exhibit excellent compatibility, forming a continuous network film within the solidified slurry, enhancing its adhesion, density, flexibility, corrosion resistance, impact resistance, and wear resistance. Industrial dispersants ensure uniform mixing of the slurry components; industrial defoamers prevent the formation of bubbles in the slurry; industrial fungicides effectively prevent deterioration of the liquid material, extending its shelf life; industrial coupling agents effectively enhance the bond strength between the liquid material and the substrate, and between the liquid material and the mortar; and industrial thickeners effectively increase viscosity, enhancing ease of construction.

[0087] Test Example 1

[0088] A comparative test was conducted on liquid waterproof membranes from different manufacturers on the market. The method was to smash the tiles three days after laying. The results are shown in Table 1:

[0089]

[0090] Table 1 is a comparative test table

[0091] See Figure 1 The data in Table 1 show that existing liquid waterproof membrane products on the market cannot pass the smash test. Their average bond strength is only 0.35 MPa, which is lower than the 0.5 MPa standard required for tile laying.

[0092] Test Example 2

[0093] Comparative tests were conducted using acrylic emulsions of different types from different manufacturers, including acrylic emulsions 6099, 6098, 230, 768, and 7855. The results are shown in Table 2:

[0094]

[0095] See Figure 2 The data in Table 2 show that the bonding strength of these acrylic emulsions has been improved, with an average tensile strength of 0.664 MPa, meeting the tile strength standard of 0.5 MPa.

[0096] Test Example 3

[0097] Acrylic emulsion 7855 was selected as the polymer emulsion, and the raw material components of Examples 3 to 7 were used to prepare flexible liquid waterproof membranes, and a comparative test of smashing was carried out 3 days after tiling. The results are shown in Table 3:

[0098]

[0099] See Figure 3 The data in Table 3 show that the prepared flexible liquid waterproof membrane has significant effects in practical applications. The laboratory pull-out strength is greater than 1.0 MPa, and there is no risk of tiles falling off in a smash test three days after tile laying.

[0100] Application Example 1

[0101] The flexible liquid waterproof membrane in Example 7 is applied to the wall base to form a waterproof layer;

[0102] When the waterproof layer is not completely cured, tiles are directly pasted to form a finishing layer.

[0103] Specifically, the thickness of the waterproof layer is 1.2-1.8 mm, the bonding strength of the liquid waterproof membrane is greater than 0.5 MPa, and the tiles of the finishing layer do not fall off in the impact resistance test within 3 days after construction.

[0104] In summary, according to the flexible liquid waterproof membrane, preparation method and application provided by the present invention, the flexible liquid waterproof membrane includes 30-36 parts of polymer emulsion, 28-36 parts of emulsified asphalt, 30-44 parts of inorganic filler, 0.1-0.3 parts of coupling agent, 0.1-0.4 parts of dispersant, 0.1-0.5 parts of defoaming agent, 0.08-0.18 parts of fungicide and 0.5-1.0 parts of thickener, etc., which effectively improves the bonding strength of the liquid waterproof membrane, performs well in both testing and actual application, and solves the problem of brick falling off in the later stage of wall tiling on the "wall soft" waterproof system.

[0105] 1. Break the traditional "rigid wall and soft ground" construction mode and adopt a new "soft wall and soft ground" construction method to make the wall waterproof more reliable.

[0106] This allows walls and floors to be constructed with flexible liquid waterproof membranes with better waterproofing effects. Walls and floors do not need to be constructed with multiple materials, which improves the convenience and efficiency of construction, and also improves the waterproofing effect and quality.

[0107] 2. It solves the problem of brick falling off in the later stage when tiling on the wall with the existing "soft wall" waterproof system.

[0108] The use of customized emulsions, emulsified asphalt, coupling agents and other additives has effectively improved the bonding strength of liquid waterproof membranes, achieving good results in both testing and actual applications.

[0109] The "soft wall, soft floor" construction method utilizes flexible liquid waterproofing membranes on both walls and floors, enabling convenient and efficient construction and superior waterproofing effectiveness and quality. Customized emulsions, emulsified asphalt, coupling agents, and other additives effectively enhance the adhesive strength of the liquid waterproofing membrane, demonstrating excellent performance in both testing and actual application, resolving the issue of tile fall-off during late-stage wall tiling with the "soft wall" waterproofing system.

[0110] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A flexible liquid waterproof roll, characterized in that: The raw material components include the following parts by weight: 30-36 parts of polymer emulsion, 28-36 parts of emulsified asphalt, 30-44 parts of inorganic filler, 0.1-0.3 parts of coupling agent, 0.1-0.4 parts of dispersant, 0.1-0.5 parts of defoaming agent, 0.08-0.18 parts of fungicide and 0.5-1.0 parts of thickener.

2. The flexible liquid waterproofing membrane according to claim 1, characterized in that: The polymer emulsion is one of acrylic emulsion, styrene acrylic emulsion or epoxy modified emulsion.

3. The flexible liquid waterproof membrane according to claim 1, characterized in that: The coupling agent is a silane coupling agent or a titanate coupling agent.

4. The flexible liquid waterproof membrane according to claim 1, characterized in that: The inorganic filler includes calcium carbonate and / or wollastonite.

5. The method for preparing the flexible liquid waterproof roll according to any one of claims 1 to 4, characterized in that: The following steps are involved: Putting the polymer emulsion, dispersant, defoamer, bactericide, and coupling agent into a stirring tank in sequence, and stirring at a first speed for a first preset time; Putting emulsified asphalt and inorganic filler into the mixing tank in sequence, and stirring at a first speed for a second preset time; The thickener is added into the mixing tank, stirred at a first speed for a third preset time, the speed is controlled to a second speed, and stirred for a fourth preset time to form a liquid waterproof membrane.

6. The method for preparing the flexible liquid waterproofing membrane according to claim 5, characterized in that: The first rotation speed is 700-800 rpm, and the second rotation speed is 300-400 rpm.

7. The method for preparing the flexible liquid waterproofing membrane according to claim 5, characterized in that: The first preset time, the second preset time and the third preset time are the same, and the sum of the three times is equal to the fourth preset time.

8. The method for preparing the flexible liquid waterproof membrane according to claim 5, characterized in that: The stirring temperature at the first rotation speed is 25-35°C, and the stirring temperature at the second rotation speed is 20-30°C.

9. Use of the flexible liquid waterproofing membrane according to any one of claims 1 to 4, characterized in that: Applying the flexible liquid waterproof membrane to the wall base to form a waterproof layer; When the waterproof layer is not completely cured, tiles are directly pasted to form a finishing layer.

10. The use of the flexible liquid waterproofing membrane according to claim 9, characterized in that: The thickness of the waterproof layer is 1.2-1.8 mm, the bonding strength of the liquid waterproof membrane is greater than 0.5 MPa, and the tiles of the finishing layer do not fall off in the impact resistance test within 3 days after construction.

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