CN108192394B - Copolymerization modified acrylate spray film waterproof material and preparation method thereof - Google Patents
Copolymerization modified acrylate spray film waterproof material and preparation method thereof Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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Abstract
The invention discloses a copolymerization modified acrylate spray film waterproof material and a preparation method thereof, wherein the raw materials for preparing the waterproof material comprise the following components in parts by weight: 40-95 parts of acrylate aqueous solution, 5-40 parts of double-bond-containing super absorbent polymer monomer, 0.5-10 parts of oxidant, 0.5-10 parts of reducing agent, 0-100 parts of pigment and 0-10 parts of cosolvent. The invention can effectively solve the problem of film cracking of the acrylate spray film waterproof material under lower humidity, adopts professional equipment for construction, forms the acrylate spray film material which can keep moisture for a longer time, and is suitable for waterproof projects such as subways, urban underground comprehensive pipe galleries, tunnels, underground projects and the like.
Description
Technical Field
The invention belongs to the field of waterproof materials, and particularly relates to a copolymerization modified acrylate spray film waterproof material and a preparation method thereof.
Background
The waterproof material is used as an enclosure structure of a building to prevent rainwater, snow water and underground water from permeating; to prevent the erosion of moisture, steam and other harmful gases and liquids in the air; the partition structure is used for preventing the water supply and drainage from seeping. These materials that resist permeation, leakage and erosion are collectively referred to as water-resistant materials. The variety of waterproof materials is various, and the new waterproof materials are also endless.
Japanese patent No. 61-19683 discloses a spray material for forming a film, which comprises acrylic acid or its derivatives as a film-forming component, an oxidizing agent, a reducing agent, an aggregate filler, an auxiliary component, and water, and which is sprayed on a surface to be treated for preventing water leakage, such as a tunnel wall surface, using a special spraying device, and then the surface is adhered to the surface and undergoes a polymerization reaction to form a film layer capable of preventing water leakage. This opens the search and research for acrylate spray film waterproof material. The patent documents with publication numbers of CN1803948A, CN102936430A, CN101429352, CN104945967A, CN105295468, CN104277516A, CN104959269A, CN204746647U, CN2855543Y, CN204745853 and CN104297073A disclose a series of acrylate spray film materials and equipment for the problems of tensile strength, storage stability, construction performance, construction, detection equipment and the like.
However, when the relative humidity of the construction environment is lower than 90%, the brittleness of the waterproof coating layer formed on the treated base surface by the acrylic acid film spraying material is high, and the waterproof layer is easy to lose efficacy due to the damage of structural deformation. CN105315737 discloses a magnesium acrylate spray film waterproof material containing continuous basalt fibers for the film cracking of acrylate spray film material under low humidity, but this patent document does not fundamentally solve the problem of brittleness of the material caused by water loss in dry environment, and the addition of continuous basalt fibers in the liquid material of the acrylate spray film material can easily cause the blockage of the spray equipment to a certain extent and affect the construction due to the long particle size and random distribution of the continuous basalt fibers in the liquid material. The problem that the coating film is easy to curl on a flexible base layer and crack on a rigid base layer when the acrylate membrane-spraying material is placed for a period of time under lower humidity is that the application and development of the acrylate membrane-spraying material are severely restricted.
Disclosure of Invention
The invention aims to provide a copolymerization modified acrylate spray film waterproof material and a preparation method thereof. The problems that a film coated by the acrylate film-spraying waterproof material is easy to curl on a flexible base layer and crack on a rigid base layer under low humidity are solved.
In order to achieve the above object, one aspect of the present invention provides a copolymerization modified acrylate spray film waterproof material, which comprises the following raw materials in parts by weight: 40-95 parts of acrylate aqueous solution, 5-40 parts of double-bond-containing super absorbent polymer monomer, 0.5-10 parts of oxidant, 0.5-10 parts of reducing agent, 0-100 parts of pigment and 0-10 parts of cosolvent.
The invention also provides a preparation method of the copolymerization modified acrylate spray film waterproof material, which comprises the following steps: uniformly mixing an aqueous acrylate solution, a double-bond-containing super absorbent polymer monomer and optional pigment and/or cosolvent, dividing into A, B parts, and respectively mixing with an oxidizing agent and a reducing agent.
The invention can effectively solve the problem of film cracking of the acrylate spray film waterproof material under lower humidity, adopts professional equipment for construction, forms the acrylate spray film material which can keep moisture for a longer time, and is suitable for waterproof projects such as subways, urban underground comprehensive pipe galleries, tunnels, underground projects and the like.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a copolymerization modified acrylate spray film waterproof material, which comprises the following raw materials in parts by weight: 40-95 parts of acrylate aqueous solution, 5-40 parts of double-bond-containing super absorbent polymer monomer, 0.5-10 parts of oxidant, 0.5-10 parts of reducing agent, 0-100 parts of pigment and 0-10 parts of cosolvent.
The copolymerization modified acrylate spray film waterproof material of the invention introduces a chain segment with high water absorbability on the main chain of the acrylate spray film polymer molecule through the copolymerization of the high water absorbability polymer monomer containing double bonds and acrylate free radicals, thereby improving the water retention and water absorbability of the acrylate spray film coating, and solving the problems that the acrylate spray film is easy to curl on a flexible base layer and crack on a rigid base layer under low humidity from the material per se.
According to the present invention, it is preferable that the aqueous acrylate solution is 50 to 95 parts.
According to the invention, preferably, the double bond-containing super absorbent polymer monomer is 5 to 30 parts.
According to the present invention, preferably, the aqueous acrylate solution is an aqueous alkaline earth metal acrylate salt solution, preferably at least one of an aqueous calcium acrylate solution, an aqueous magnesium methacrylate solution and an aqueous calcium methacrylate solution.
According to the present invention, preferably, the double bond-containing super absorbent polymer monomer is at least one of a double bond-containing organic alkali metal salt, a double bond-containing ammonium compound, a double bond-containing organic amide compound, and a double bond-containing organic acid compound; preferably, at least one of sodium acrylate, ammonium acrylate, acrylamide, acrylic acid, sodium styrene sulfonate, styrene sulfonic acid amine, and styrene sulfonic acid is included.
In the invention, the double-bond-containing super absorbent polymer monomer can be completely water-soluble; the water solubility of the homopolymer or the copolymer is superior to that of the homopolymer of the acrylic acid alkaline earth metal salt; it is capable of free radical polymerization with alkaline earth metal salts of acrylic acid, the resulting polymer being highly water-absorbent and even water-soluble.
According to the present invention, preferably, the oxidizing agent is at least one of potassium persulfate, ammonium persulfate, sodium persulfate, methyl ethyl ketone peroxide, and cyclohexanone peroxide.
According to the present invention, preferably, the reducing agent is at least one of stannous chloride, sodium thiosulfate, sodium sulfite, ferrous sulfate, potassium borohydride and sodium borohydride.
According to the present invention, preferably, the pigment includes at least one of fumed silica, precipitated silica, light calcium carbonate, ground calcium carbonate, kaolin, talc, iron black, phthalocyanine blue, and iron yellow.
According to the present invention, preferably, the co-solvent comprises at least one of ethanol, propylene glycol and glycerol. The co-solvent can increase the solubility of the double bond-containing superabsorbent polymer monomer in aqueous solutions of alkaline earth metal acrylates.
The invention also provides a preparation method of the copolymerization modified acrylate spray film waterproof material, which comprises the following steps: uniformly mixing an aqueous acrylate solution, a double-bond-containing super absorbent polymer monomer and optional pigment and/or cosolvent, dividing into A, B parts, and respectively mixing with an oxidizing agent and a reducing agent. The phrase "separately mixed with an oxidizing agent and a reducing agent" means that one part is mixed with an oxidizing agent and the other part is mixed with a reducing agent.
According to the invention, the ratio of the part A to the part B can be determined according to requirements, and preferably, the ratio of the part A to the part B is 0.01:1-1: 0.01.
As a preferable scheme, raw materials for preparing the copolymerization modified acrylate spray film waterproof material can be obtained commercially.
The invention is further illustrated by the following examples:
example 1
The waterproof material of the embodiment is prepared from the following raw materials in parts by weight: 60 parts of magnesium acrylate aqueous solution with the mass concentration of 45%, 25 parts of sodium acrylate, 5 parts of sodium persulfate, 5 parts of sodium thiosulfate, 30 parts of light calcium carbonate and 5 parts of glycerol.
The preparation method comprises the following specific steps:
60 parts of magnesium acrylate aqueous solution with the mass concentration of 45%, 25 parts of sodium acrylate, 5 parts of glycerol and 30 parts of light calcium carbonate are mixed, dispersed at a high speed, uniformly stirred, divided into A, B parts according to the proportion of 1:1, and respectively added with 5 parts of sodium persulfate and 5 parts of sodium thiosulfate.
Example 2
The waterproof material of the embodiment is prepared from the following raw materials in parts by weight: 50 parts of a magnesium acrylate aqueous solution with the mass concentration of 45%, 30 parts of a calcium acrylate aqueous solution with the mass concentration of 45%, 15 parts of sodium styrene sulfonate, 5 parts of ammonium persulfate, 5 parts of sodium thiosulfate and 30 parts of heavy calcium carbonate.
The preparation method comprises the following specific steps:
50 parts of a 45 mass percent magnesium acrylate aqueous solution, 15 parts of sodium styrene sulfonate, 30 parts of a 45 mass percent calcium acrylate aqueous solution and 30 parts of ground calcium carbonate are mixed, dispersed at a high speed, uniformly stirred, divided into A, B parts according to a ratio of 1:10, and respectively added with 5 parts of ammonium persulfate and 5 parts of sodium thiosulfate.
Example 3
The waterproof material of the embodiment is prepared from the following raw materials in parts by weight: 80 parts of 35% magnesium acrylate aqueous solution, 10 parts of acrylamide, 15 parts of sodium acrylate, 5 parts of potassium persulfate, 5 parts of sodium thiosulfate, 2 parts of fumed silica and 30 parts of light calcium carbonate.
The preparation method comprises the following specific steps:
80 parts of 35 mass percent aqueous magnesium acrylate solution, 10 parts of acrylamide, 15 parts of sodium acrylate, 2 parts of fumed silica and 30 parts of light calcium carbonate are mixed, dispersed at a high speed, uniformly stirred, divided into A, B parts according to a ratio of 10:1, and respectively added with 5 parts of potassium persulfate and 5 parts of sodium thiosulfate.
Example 4
The waterproof material of the embodiment is prepared from the following raw materials in parts by weight: 50 parts of 35% magnesium acrylate aqueous solution, 15 parts of sodium styrene sulfonate, 15 parts of sodium acrylate, 5 parts of ammonium persulfate, 5 parts of ferrous sulfate, 2 parts of fumed silica, 30 parts of ground calcium carbonate and 5 parts of ethanol.
The preparation method comprises the following specific steps:
50 parts of 35% magnesium acrylate aqueous solution, 15 parts of sodium styrene sulfonate, 15 parts of sodium acrylate, 5 parts of ethanol, 2 parts of fumed silica and 30 parts of ground calcium carbonate are mixed, dispersed at a high speed, uniformly stirred, divided into A, B parts according to the ratio of 1:1, and 5 parts of ammonium persulfate and 5 parts of ferrous sulfate are respectively added.
Comparative example 1
The waterproof material of the comparative example is prepared from the following raw materials in parts by weight: 85 parts of magnesium acrylate aqueous solution with the mass concentration of 45%, 5 parts of sodium persulfate, 5 parts of sodium thiosulfate and 30 parts of light calcium carbonate.
The preparation method comprises the following specific steps:
85 parts of magnesium acrylate aqueous solution and 30 parts of light calcium carbonate are mixed, dispersed at a high speed, evenly stirred, divided into A, B parts according to the proportion of 1:1, and 5 parts of sodium persulfate and 5 parts of sodium thiosulfate are respectively added.
Test example
The examples 1-4 and the comparative example are sprayed on a flexible substrate to form a film by using special equipment, and the flexible substrate is placed in a blast oven at a standard environment (23 +/-2 ℃, RH50 +/-10) and a 60 ℃ respectively for different times, and the flexibility and the cracking condition of the film are observed, and the specific conditions are shown in tables 1 and 2.
TABLE 1 coating film condition left in Standard Environment
TABLE 260 ℃ coating Condition placed under a forced air oven
| Time of day | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| 0h | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable |
| 4h | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Hardening of |
| 8h | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Crimping |
| 16h | Hardening of | Is flexible and pliable | Is flexible and pliable | Is flexible and pliable | Crimping |
| 32h | Hardening of | Hardening of | Is flexible and pliable | Is flexible and pliable | Crimping |
As shown in tables 1 and 2, the film-spraying materials prepared in examples 1-4 and comparative examples are respectively placed in a blast oven under a standard environment (23 +/-2 ℃, RH50 +/-10) and at 60 ℃, so that the film-spraying materials of examples 1-4 have good flexibility, longer hardening resistance time of a coating film and better water retention property, and can effectively solve the construction problems that the coating film of an acrylate film-spraying material is easy to curl on a flexible base layer and crack on a rigid base layer under lower humidity.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (11)
1. The copolymerization modified acrylate spray film waterproof material is characterized in that the raw materials for preparing the waterproof material comprise, by weight: 40-95 parts of acrylate aqueous solution, 5-40 parts of double-bond-containing super absorbent polymer monomer, 0.5-10 parts of oxidant, 0.5-10 parts of reducing agent, 0-100 parts of pigment and 0-10 parts of cosolvent;
wherein the double-bond-containing super absorbent polymer monomer is at least one of double-bond-containing organic alkali metal salt, double-bond-containing ammonium compound, double-bond-containing organic amide compound and double-bond-containing organic acid compound.
2. The copolymerization modified acrylate spray film waterproof material according to claim 1, wherein the acrylate aqueous solution is 50-95 parts, and the double bond-containing super absorbent polymer monomer is 5-30 parts.
3. The co-polymerized modified acrylate spray-coated waterproofing material according to claim 1, wherein the aqueous acrylate solution is an aqueous alkaline earth metal acrylate salt solution.
4. The copolymer modified acrylate spray waterproof material according to claim 3, wherein the aqueous acrylate solution is at least one of an aqueous calcium acrylate solution, an aqueous magnesium methacrylate solution and an aqueous calcium methacrylate solution.
5. The co-polymer modified acrylate spray film waterproofing material according to claim 1, wherein the double bond-containing super absorbent polymer monomer comprises at least one of sodium acrylate, ammonium acrylate, acrylamide, acrylic acid, sodium styrene sulfonate, styrene sulfonic acid amine and styrene sulfonic acid.
6. The copolymer modified acrylate spray film waterproof material according to claim 1, wherein the oxidant is at least one of potassium persulfate, ammonium persulfate, sodium persulfate, methyl ethyl ketone peroxide and cyclohexanone peroxide.
7. The co-polymerized modified acrylate spray film waterproofing material according to claim 1, wherein the reducing agent is at least one of stannous chloride, sodium thiosulfate, sodium sulfite, ferrous sulfate, potassium borohydride and sodium borohydride.
8. The co-modified acrylate spray coated waterproofing material of claim 1, wherein the pigment comprises at least one of fumed silica, precipitated calcium carbonate, ground limestone, kaolin, talc, iron black, phthalocyanine blue, and iron yellow.
9. The co-polymer modified acrylate spray film waterproofing material according to claim 1, wherein the co-solvent comprises at least one of ethanol, propylene glycol, and glycerol.
10. The preparation method of the copolymerization modified acrylate spray film waterproof material according to any one of claims 1 to 9, characterized by comprising the following steps: uniformly mixing an aqueous acrylate solution, a double-bond-containing super absorbent polymer monomer and optional pigment and/or cosolvent, dividing into A, B parts, and respectively mixing with an oxidizing agent and a reducing agent.
11. The method of claim 10, wherein the ratio of part a to part B is from 0.01:1 to 1: 0.01.
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| CN110128860A (en) * | 2019-04-23 | 2019-08-16 | 浙江工业大学 | Waterproof spray film material capable of being quickly self-repaired and preparation method thereof |
| CN112063246B (en) * | 2020-09-03 | 2021-10-08 | 广西青龙化学建材有限公司 | High-performance acrylate film-spraying waterproof coating and preparation method thereof |
| CN116042068B (en) * | 2022-12-30 | 2024-06-11 | 安徽朗凯奇建材有限公司 | Photo-curing acrylate film-spraying waterproof material and preparation method thereof |
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| CN104277516A (en) * | 2014-10-07 | 2015-01-14 | 成都市嘉洲新型防水材料有限公司 | Waterproof film spraying material, and preparation method and application thereof |
| CN104710849A (en) * | 2015-04-08 | 2015-06-17 | 成都金嘉洲建材有限公司 | Film-spraying waterproof material, and preparation and application methods thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104277516A (en) * | 2014-10-07 | 2015-01-14 | 成都市嘉洲新型防水材料有限公司 | Waterproof film spraying material, and preparation method and application thereof |
| CN104710849A (en) * | 2015-04-08 | 2015-06-17 | 成都金嘉洲建材有限公司 | Film-spraying waterproof material, and preparation and application methods thereof |
Non-Patent Citations (1)
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| CW520丙烯酸盐灌浆材料交联剂合成及其浆液性能研究;张健等;《长江科学院院报》;20120228;第55-59页 * |
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