CN110550907A - Water-based modified polypropylene polymer cement-based waterproof slurry and preparation method thereof - Google Patents
Water-based modified polypropylene polymer cement-based waterproof slurry and preparation method thereof Download PDFInfo
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- CN110550907A CN110550907A CN201910897760.XA CN201910897760A CN110550907A CN 110550907 A CN110550907 A CN 110550907A CN 201910897760 A CN201910897760 A CN 201910897760A CN 110550907 A CN110550907 A CN 110550907A
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- modified polypropylene
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- polypropylene polymer
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2611—Polyalkenes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based modified polypropylene polymer cement-based waterproof slurry and a preparation method thereof, belonging to the technical field of coatings, and the water-based modified polypropylene polymer cement-based waterproof slurry comprises a liquid material and a powder material, wherein the liquid material comprises: rigid propyl benzene emulsion, flexible propyl benzene emulsion, preservative, dispersant, defoaming agent and water; the powder material comprises the following components in percentage by mass: cement, 80-120 mesh modified polypropylene, quartz powder, cellulose ether, a water reducing agent and dispersible rubber powder; the invention adopts the rigid styrene-acrylic emulsion which has good compositeness with cement, has the glass transition temperature of 0 ℃, has the VOC content of less than 1g/L, is environment-friendly, has excellent waterproof performance and good rigidity, and improves the waterproof performance and the strength of the waterproof coating. The flexible styrene-acrylic emulsion with good wrapping capacity and flexibility is added, so that the workability of the waterproof coating is improved, the flexibility of the waterproof coating is improved, and the tightness of the waterproof coating is improved.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based modified polypropylene polymer cement-based waterproof slurry and a preparation method thereof.
Background
in recent years, with the development of the building industry, the use of the coating is more advanced and more novel. Buildings are subject to erosion and penetration by rain, ground water and other moisture, which requires the use of some waterproofing materials. Therefore, the waterproof material becomes an indispensable part of the construction engineering structure. The waterproof coating is inoculated and produced at the same time, and is developed rapidly. However, in recent years, various waterproof coating products have been introduced from various manufacturers with the development of waterproof coatings. The polymer cement waterproof slurry needs a large amount of colored sand, and the colored sand in the market is rare at present, so that the environment protection situation is severe. A large number of manufacturers start to replace the colored sand with some novel materials, but the effect of the colored sand is difficult to achieve.
Disclosure of Invention
The invention aims to provide a water-based modified polypropylene polymer cement-based waterproof slurry and a preparation method thereof, which are used for solving the problems in the prior art and obtaining a water-based waterproof coating with water-based environmental protection, good construction performance, good construction effect, excellent performance and high strength.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a water-based modified polypropylene polymer cement-based waterproof slurry, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 3.5-4;
The liquid material comprises the following components in percentage by mass:
The powder material comprises the following components in percentage by mass:
Further, the cement is Portland lime number 42.5 cement or Portland white number 52.5 cement.
Further, the particle size of the quartz powder is 200 meshes.
Furthermore, the soluble rubber powder is styrene and butadiene copolymerized rubber powder, and the lowest film forming temperature is more than 0 ℃.
Further, the cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether, and the viscosity is 20000 mPa.s-40000 mPa.s.
Further, the water reducing agent is a sulfonated melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent; the antibacterial agent is a kasong bactericide; the defoaming agent is mineral oil or organic silicon defoaming agent, and the dispersing agent is polyacrylate dispersing agent.
Furthermore, the vitrification temperature of the rigid propyl benzene emulsion is 0 ℃, the VOC content is less than 1g/L, and the VOC content of the flexible propyl benzene emulsion is less than 1 g/L.
Further, the modified polypropylene is prepared by hot-melt extrusion molding of polypropylene particles and filamentous carbon fibers and grinding.
The invention also provides a preparation method of the water-based modified polypropylene polymer cement-based waterproof slurry, which comprises the following steps:
(1) preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) and respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
The invention discloses the following technical effects:
the invention adopts the rigid styrene-acrylic emulsion which has good compositeness with cement, has the glass transition temperature of 0 ℃, has the VOC content of less than 1g/L, is environment-friendly, has good waterproof performance and good rigidity, and improves the waterproof performance and the strength of the waterproof coating. The flexible styrene-acrylic emulsion with good wrapping capacity and flexibility is added, so that the workability of the waterproof coating is improved, the flexibility of the waterproof coating is improved, and the tightness of the waterproof coating is improved.
the modified polypropylene is used for replacing natural colored sand, so that the paint has good acid and alkali resistance, good weather resistance, low implementation cost, energy conservation, environmental protection, excellent solvent resistance and excellent friction resistance, and the modified polypropylene containing the carbon fibers is used as a reinforcement to improve the cracking resistance of the paint.
the dispersible rubber powder is added into the product, so that the associativity of the waterproof coating is improved, and the waterproof performance of the waterproof coating is improved.
Detailed Description
reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
it will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
as used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
The "parts" referred to in the present invention are by mass unless otherwise specified.
Example 1
The water-based modified polypropylene polymer cement-based waterproof slurry comprises a liquid material and a powder material, wherein the liquid material and the powder material are in a ratio of 1: 3.6;
the liquid material comprises the following components in percentage by mass:
The powder material comprises the following components in percentage by mass:
The preparation method comprises the following steps:
(1) Preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) Preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) And respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
Example 2
The water-based modified polypropylene polymer cement-based waterproof slurry comprises a liquid material and a powder material, wherein the liquid material and the powder material are in a ratio of 1: 3.6;
the liquid material comprises the following components in percentage by mass:
the powder material comprises the following components in percentage by mass:
The preparation method comprises the following steps:
(1) preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) Preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) and respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
example 3
the water-based modified polypropylene polymer cement-based waterproof slurry comprises a liquid material and a powder material, wherein the liquid material and the powder material are in a ratio of 1: 3.8 of the total weight of the mixture;
The liquid material comprises the following components in percentage by mass:
The powder material comprises the following components in percentage by mass:
The preparation method comprises the following steps:
(1) Preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) and respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
Example 4
The water-based modified polypropylene polymer cement-based waterproof slurry comprises a liquid material and a powder material, wherein the liquid material and the powder material are in a ratio of 1: 4;
the liquid material comprises the following components in percentage by mass:
the powder material comprises the following components in percentage by mass:
The preparation method comprises the following steps:
(1) Preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) Preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) And respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
comparative example 1
The difference from example 1 is that comparative example 1 uses 80-120 mesh sand in place of 80-120 mesh modified polypropylene in equal amount.
comparative example 2
The difference from example 1 is that comparative example 2 uses unmodified polypropylene and filamentous carbon fibers in the same amount as in example 1.
Comparative example 3
the difference from example 1 is that comparative example 3 replaces the flexible styrene-acrylic emulsion with a rigid styrene-acrylic emulsion in equal amounts.
the results of the tests conducted on examples 1 to 4 and comparative examples 1 to 3 are shown in Table 1.
TABLE 1
note: the content, drying time, bonding strength, impermeability, flexibility, alkali resistance, heat resistance, frost resistance, tensile strength and elongation at break are detected according to a detection method in JC/T2090-2011I type Polymer Cement waterproof mortar.
In conclusion, the waterproof coating has excellent acid and alkali resistance, water resistance, bonding strength and compression and fracture strength, is environment-friendly and energy-saving by using the modified polypropylene to replace natural colored sand, improves the strength of the waterproof coating, and reduces the construction difficulty. Meanwhile, extremely low VOC, heavy metal and the like are in an undetected range, so that the product has excellent waterproof performance and compression and cracking resistance.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The water-based modified polypropylene polymer cement-based waterproof slurry is characterized by comprising a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 3.5-4;
the liquid material comprises the following components in percentage by mass:
the powder material comprises the following components in percentage by mass:
2. the aqueous modified polypropylene polymer cement-based waterproofing slurry according to claim 1, wherein said cement is Portland lime number 42.5 cement or Portland white number 52.5 cement.
3. the aqueous modified polypropylene polymer cement-based waterproof slurry as claimed in claim 1, wherein the particle size of the quartz powder is 200 mesh.
4. The water-based modified polypropylene polymer cement-based waterproof slurry as claimed in claim 1, wherein the soluble rubber powder is styrene and butadiene copolymerized rubber powder, and the minimum film forming temperature is more than 0 ℃.
5. the aqueous modified polypropylene polymer cement-based waterproofing slurry according to claim 1, wherein the cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether and has a viscosity of 20000mpa.s to 40000 mpa.s.
6. The water-based modified polypropylene polymer cement-based waterproof slurry as claimed in claim 1, wherein the water reducing agent is a sulfonated melamine high efficiency water reducing agent or a polycarboxylic acid water reducing agent; the antibacterial agent is a kasong bactericide; the defoaming agent is mineral oil or organic silicon defoaming agent, and the dispersing agent is polyacrylate dispersing agent.
7. the aqueous modified polypropylene polymer cement-based waterproof slurry as claimed in claim 1, wherein the glass transition temperature of the rigid propyl benzene emulsion is 0 ℃, the VOC content is less than 1g/L, and the VOC content of the flexible propyl benzene emulsion is less than 1 g/L.
8. The aqueous modified polypropylene polymer cement-based waterproof slurry as claimed in claim 1, wherein the modified polypropylene is prepared by hot melt extrusion molding of polypropylene particles and filamentous carbon fibers and grinding.
9. A method for preparing an aqueous modified polypropylene polymer cement-based waterproofing slurry according to any of claims 1 to 8, comprising the steps of:
(1) preparing liquid material components: adding water into a reaction kettle according to the formula amount, and then sequentially adding a rigid styrene-acrylic emulsion, a dispersing agent, a flexible styrene-acrylic emulsion, a defoaming agent and a preservative; stirring at the rotation speed of 450-;
(2) preparing a powder component: sequentially adding cement, quartz powder, cellulose ether, a water reducing agent, 80-120 mesh modified polypropylene and dispersible rubber powder into a stirring tank, stirring at 600r/min for 500-30 min until the materials are uniform, and sieving with a 40-mesh sieve to obtain a powder component;
(3) And respectively forming uniform paint paste by the liquid component and the powder component, and mixing the uniform paint paste according to a proportion to obtain the water-based modified polypropylene polymer cement-based waterproof paste.
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| CN201910897760.XA CN110550907A (en) | 2019-09-23 | 2019-09-23 | Water-based modified polypropylene polymer cement-based waterproof slurry and preparation method thereof |
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| CN201910897760.XA CN110550907A (en) | 2019-09-23 | 2019-09-23 | Water-based modified polypropylene polymer cement-based waterproof slurry and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448667A (en) * | 2022-09-29 | 2022-12-09 | 科顺民用建材有限公司 | Anti-sagging waterproof mortar composition, anti-sagging waterproof mortar and preparation method and application thereof |
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2019
- 2019-09-23 CN CN201910897760.XA patent/CN110550907A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448667A (en) * | 2022-09-29 | 2022-12-09 | 科顺民用建材有限公司 | Anti-sagging waterproof mortar composition, anti-sagging waterproof mortar and preparation method and application thereof |
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