CN116731577A - High polymer cement waterproof paint - Google Patents

High polymer cement waterproof paint Download PDF

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Publication number
CN116731577A
CN116731577A CN202310925243.5A CN202310925243A CN116731577A CN 116731577 A CN116731577 A CN 116731577A CN 202310925243 A CN202310925243 A CN 202310925243A CN 116731577 A CN116731577 A CN 116731577A
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CN
China
Prior art keywords
modified zeolite
parts
zeolite
high polymer
polymer cement
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Pending
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CN202310925243.5A
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Chinese (zh)
Inventor
刘启军
吕广华
张涛
王健
邓又康
占丹
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Hubei Joyoung Waterproofing Material Technology Co ltd
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Hubei Joyoung Waterproofing Material Technology Co ltd
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Priority to CN202310925243.5A priority Critical patent/CN116731577A/en
Publication of CN116731577A publication Critical patent/CN116731577A/en
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Abstract

The invention belongs to the technical field of waterproof coating, and discloses a high polymer cement waterproof coating, which is prepared by mixing the following raw materials, by mass, 25-35 parts of acrylic emulsion, 1-10 parts of water, 0.1-1 part of defoamer, 0.1-1 part of bactericide, 28-38 parts of Portland cement, 28-38 parts of quartz sand, 0.1-1 part of water reducer and 5-10 parts of modified zeolite. The beneficial effects of the invention are as follows: the modified zeolite can play a role in moisture release, moisture is provided for cement hydration, meanwhile, due to the hard structural characteristic of the zeolite, after the moisture in zeolite pores reacts with cement, the volume of the zeolite is unchanged, the coating can be supported, and the volume shrinkage of the coating is avoided, so that the phenomenon of cracking of a film layer of the high polymer cement waterproof coating can be avoided when the coating thickness is large, the construction steps are simplified, and the construction efficiency is improved.

Description

High polymer cement waterproof paint
Technical Field
The invention belongs to the technical field of waterproof coatings, and particularly relates to a high polymer cement waterproof coating.
Background
The waterproof material is a main material for solving the waterproof problem of the building engineering, is a key carrier for improving the waterproof performance of the building engineering, and has very important promotion effect on improving the quality of the building waterproof engineering. The polymer cement waterproof paint is JS waterproof paint for short, J refers to polymer, S refers to cement, so JS is polymer cement waterproof paint. The polymer cement waterproof paint is an organic liquid material composed of polymer emulsion such as polyacrylate emulsion, ethylene-vinyl acetate copolymer emulsion and various additives.
The quality of the polymer cement paint is greatly influenced by construction environment, air temperature and humidity after the coating, the surface of the coating is quickly formed into a film, the film forming thickness is thinner, the surface strength of the coating is lower, the bottom of the coating is slow in drying and curing speed, and the cement can generate hydration in the drying and curing process to generate the phenomenon of volume shrinkage, so that when the coating thickness is larger, the surface of the coating is cracked in the process of drying to form a coating film. The constructor often needs to coat a thinner layer each time, and after the thin coating dries out, the constructor covers a layer again and repeats three to four times, and the construction process is tedious and the construction time is long. In the air-dried area, the water in the coating gradually evaporates, so that the volume of the coating is reduced, and the drying crack occurs, so that the service life of the coating is short.
Disclosure of Invention
The invention aims to provide a high polymer cement waterproof coating which has the effects of convenient construction and difficult cracking.
The technical aim of the invention is realized by the following technical scheme: the high polymer cement waterproof paint is prepared by mixing the following raw materials in parts by mass:
the invention is further provided with: also comprises 5-10 parts of modified zeolite.
The invention is further provided with: the modified zeolite is prepared by the following steps:
s1, selecting zeolite with 100-200 meshes, adopting sodium hydroxide alkali to mix and soak for 1-2 hours, and drying to obtain alkali modified zeolite;
s2, refluxing the alkali modified zeolite in the step S1 in an absolute ethanol solution of hexadecyl trimethyl ammonium bromide at 70 ℃ to obtain an organized modified zeolite;
s3, dropwise adding sodium hydroxide with the mass fraction of 20% into acrylic acid, adding the organic modified zeolite into the part solution, adding potassium persulfate, stirring and mixing a cross-linking agent N-N' -methylene bisacrylamide, and performing ultrasonic treatment for 30min to obtain an emulsified solution;
s4, removing oxygen in the cyclohexane and the mixed solution by using nitrogen, dissolving at 40 ℃, pouring the emulsified solution into the cyclohexane solution, reacting for 4 hours at 79 ℃, and carrying out vacuum drying and grinding on the obtained sample to obtain the modified zeolite.
The invention is further provided with: the step S3 comprises 10-20 parts by mass of organic modified zeolite, 100 parts by mass of solution and 0.3-1 part by mass of cross-linking agent N-N' -methylene bisacrylamide.
The invention is further provided with: the mesh number of the quartz sand is 70-140 meshes.
The beneficial effects of the invention are as follows:
1. the modified zeolite has good moisture absorption rate and moisture release rate, the modified zeolite is added into the high polymer cement, after the high polymer cement is coated, the surface of the coating is quickly formed into a film, the bottom of the coating is dried in the early stage, the modified zeolite can play a role in moisture release to provide moisture for cement hydration, meanwhile, the volume of the zeolite is unchanged after the moisture in the zeolite pores reacts with the cement due to the relatively hard structural characteristic of the zeolite, the function of supporting the coating can be realized, the volume shrinkage of the coating is avoided, and therefore, when the coating thickness of the high polymer cement waterproof coating is relatively large, the phenomenon of cracking of a film layer can not occur, the construction steps are simplified, and the construction efficiency is improved.
2. In the later drying and solidifying process of the coating, the modified zeolite can play a role in retaining water, can continuously provide water for cement in a drying environment, and avoids shrinkage and drying crack of the cement stone due to water loss in the drying environment.
The zeolite with the mesh of 3.100-200 is filled in the pores of the Portland cement, thereby increasing the structural density of the inside of the concrete and improving the mechanical property of the cement.
4. The sodium polyacrylate in the zeolite can be associated with acrylic acid ester in the acrylic emulsion, so that the tensile strength of the acrylic emulsion after film formation is enhanced, and the cracking of a coating is avoided.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1
The high polymer cement waterproof paint is characterized by being prepared by mixing the following raw materials in parts by mass:
the modified zeolite is prepared by the following steps:
s1, selecting 100-mesh zeolite, mixing and soaking the zeolite with sodium hydroxide alkali for 2 hours, and drying the zeolite to obtain alkali modified zeolite;
s2, refluxing the alkali modified zeolite in the step S1 in an absolute ethanol solution of hexadecyl trimethyl ammonium bromide at 70 ℃ to obtain an organized modified zeolite;
s3, dropwise adding 20% sodium hydroxide into acrylic acid, adding 10 parts of organic modified zeolite into 100 parts of solution, adding 3 parts of potassium persulfate, 0.3 part of cross-linking agent N-N' -methylene bisacrylamide, stirring and mixing, and performing ultrasonic treatment for 30min to obtain an emulsified solution;
s4, removing oxygen in the cyclohexane and the mixed solution by using nitrogen, dissolving at 40 ℃, pouring the emulsified solution into the cyclohexane solution, reacting for 4 hours at 79 ℃, and carrying out vacuum drying and grinding on the obtained sample to obtain the modified zeolite.
Example 2
The high polymer cement waterproof paint is characterized by being prepared by mixing the following raw materials in parts by mass:
the modified zeolite is prepared by the following steps:
s1, selecting zeolite with 200 meshes, mixing and soaking the zeolite with sodium hydroxide alkali for 1h, and drying the zeolite to obtain alkali modified zeolite;
s2, refluxing the alkali modified zeolite in the step S1 in an absolute ethanol solution of hexadecyl trimethyl ammonium bromide at 70 ℃ to obtain an organized modified zeolite;
s3, dropwise adding 20% sodium hydroxide into acrylic acid, adding 20 parts of organic modified zeolite into 100 parts of solution, adding 2 parts of potassium persulfate, 1 part of cross-linking agent N-N' -methylene bisacrylamide, stirring and mixing, and carrying out ultrasonic treatment for 30min to obtain an emulsified solution;
s4, removing oxygen in the cyclohexane and the mixed solution by using nitrogen, dissolving at 40 ℃, pouring the emulsified solution into the cyclohexane solution, reacting for 4 hours at 79 ℃, and carrying out vacuum drying and grinding on the obtained sample to obtain the modified zeolite.
Example 3
The high polymer cement waterproof paint is characterized by being prepared by mixing the following raw materials in parts by mass:
example 4
The high polymer cement waterproof paint is characterized by being prepared by mixing the following raw materials in parts by mass:
the modified zeolite is prepared by the following steps:
s1, selecting 100-mesh zeolite, mixing and soaking the zeolite with sodium hydroxide alkali for 2 hours, and drying the zeolite to obtain alkali modified zeolite;
s2, refluxing the alkali modified zeolite in the step S1 in an absolute ethanol solution of hexadecyl trimethyl ammonium bromide at 70 ℃ to obtain an organized modified zeolite;
s3, dropwise adding 20% sodium hydroxide into acrylic acid, adding 10 parts of organic modified zeolite into 100 parts of solution, adding 3 parts of potassium persulfate, 0.3 part of cross-linking agent N-N' -methylene bisacrylamide, stirring and mixing, and performing ultrasonic treatment for 30min to obtain an emulsified solution;
s4, removing oxygen in the cyclohexane and the mixed solution by using nitrogen, dissolving at 40 ℃, pouring the emulsified solution into the cyclohexane solution, reacting for 4 hours at 79 ℃, and carrying out vacuum drying and grinding on the obtained sample to obtain the modified zeolite.
Test data
According to the raw materials in examples 1-4, the raw materials were stirred and mixed to prepare a high polymer waterproof paint, and the drying time, tensile strength and elongation at break of the paint were tested with reference to GB T23445-2009 polymer cement waterproof paint, and the test results are shown in Table 1 below.
TABLE 1
The waterproof coating is constructed on the ground, the vertical face and the internal corner, the construction thickness is 2mm, the construction is performed once, the cracking state of the coating is observed, and the test results are shown in the following table 2.
TABLE 2
As can be seen from the combination of table 1 and table 2, the drying times of example 1 and example 2 are longer, but the strength after drying is higher, and cracking is not easy; the zeolite is adopted in the embodiment 3, the zeolite is not added in the embodiment 4, and the strength and the crack resistance in the embodiments 3 and 4 are not ideal, so that the modified zeolite can ensure that the high polymer cement waterproof paint can not crack when the coating thickness is larger, the construction step is simplified, the construction efficiency is improved, the zeolite with 100-200 meshes is filled in the pores of the Portland cement, the structural density in the concrete is increased, and the mechanical property of the cement can be improved.

Claims (5)

1. The high polymer cement waterproof paint is characterized by being prepared by mixing the following raw materials in parts by mass:
2. the high polymer cement waterproof paint as claimed in claim 1, wherein: also comprises 5-10 parts of modified zeolite.
3. A high polymer cement waterproof paint according to claim 2, characterized in that: the modified zeolite is prepared by the following steps:
s1, selecting zeolite with 100-200 meshes, adopting sodium hydroxide alkali to mix and soak for 1-2 hours, and drying to obtain alkali modified zeolite;
s2, refluxing the alkali modified zeolite in the step S1 in an absolute ethanol solution of hexadecyl trimethyl ammonium bromide at 70 ℃ to obtain an organized modified zeolite;
s3, dropwise adding sodium hydroxide with the mass fraction of 20% into acrylic acid, then adding the organic modified zeolite into the solution, adding potassium persulfate, stirring and mixing a cross-linking agent N-N' -methylene bisacrylamide, and carrying out ultrasonic treatment for 30min to obtain an emulsified solution;
s4, removing oxygen in the cyclohexane and the mixed solution by using nitrogen, dissolving at 40 ℃, pouring the emulsified solution into the cyclohexane solution, reacting for 4 hours at 79 ℃, and carrying out vacuum drying and grinding on the obtained sample to obtain the modified zeolite.
4. A high polymer cement waterproof paint according to claim 3, characterized in that: the step S3 comprises 10-20 parts by mass of organic modified zeolite, 100 parts by mass of solution and 0.3-1 part by mass of cross-linking agent N-N' -methylene bisacrylamide.
5. The high polymer cement waterproof paint as claimed in claim 1, wherein: the mesh number of the quartz sand is 70-140 meshes.
CN202310925243.5A 2023-07-26 2023-07-26 High polymer cement waterproof paint Pending CN116731577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310925243.5A CN116731577A (en) 2023-07-26 2023-07-26 High polymer cement waterproof paint

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Application Number Priority Date Filing Date Title
CN202310925243.5A CN116731577A (en) 2023-07-26 2023-07-26 High polymer cement waterproof paint

Publications (1)

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CN116731577A true CN116731577A (en) 2023-09-12

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009073925A (en) * 2007-09-20 2009-04-09 Aisin Chem Co Ltd Aqueous coating type damping material
US20100210745A1 (en) * 2002-09-09 2010-08-19 Reactive Surfaces, Ltd. Molecular Healing of Polymeric Materials, Coatings, Plastics, Elastomers, Composites, Laminates, Adhesives, and Sealants by Active Enzymes
CN102504466A (en) * 2011-10-17 2012-06-20 常熟市星源金属涂层厂 Method for preparing modified zeolite-sodium acrylate moisture-absorbing composite material
CN104140728A (en) * 2014-08-08 2014-11-12 鳄鱼制漆(上海)有限公司 JS elastic waterproof coating
CN106316293A (en) * 2016-08-24 2017-01-11 河南省德嘉丽科技开发有限公司 Water-proof coating of cement-based polymer
CN107629499A (en) * 2017-09-29 2018-01-26 佛山市涂无忧建材有限公司 A kind of elastic polymer waterproof paint and preparation method thereof
CN108147726A (en) * 2017-12-29 2018-06-12 中山市诚美涂料有限公司 A kind of water-repellent paint and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100210745A1 (en) * 2002-09-09 2010-08-19 Reactive Surfaces, Ltd. Molecular Healing of Polymeric Materials, Coatings, Plastics, Elastomers, Composites, Laminates, Adhesives, and Sealants by Active Enzymes
JP2009073925A (en) * 2007-09-20 2009-04-09 Aisin Chem Co Ltd Aqueous coating type damping material
CN102504466A (en) * 2011-10-17 2012-06-20 常熟市星源金属涂层厂 Method for preparing modified zeolite-sodium acrylate moisture-absorbing composite material
CN104140728A (en) * 2014-08-08 2014-11-12 鳄鱼制漆(上海)有限公司 JS elastic waterproof coating
CN106316293A (en) * 2016-08-24 2017-01-11 河南省德嘉丽科技开发有限公司 Water-proof coating of cement-based polymer
CN107629499A (en) * 2017-09-29 2018-01-26 佛山市涂无忧建材有限公司 A kind of elastic polymer waterproof paint and preparation method thereof
CN108147726A (en) * 2017-12-29 2018-06-12 中山市诚美涂料有限公司 A kind of water-repellent paint and preparation method thereof

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