CN115044260A - Root-blocking environment-friendly polymer cement waterproof coating and preparation method thereof - Google Patents
Root-blocking environment-friendly polymer cement waterproof coating 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
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- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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Abstract
The invention belongs to the field of waterproof coatings, and relates to a root-blocking environment-friendly polymer cement waterproof coating and a preparation method thereof; comprises a component A and a component B, wherein the weight mixing ratio of the component A to the component B is 1:1-1: 1.3; the invention aims to solve the problem of application of a polymer cement waterproof coating in planting surface waterproof construction, and provides a preparation method of a root-blocking environment-friendly polymer cement waterproof coating, so that the polymer cement waterproof coating with good root-blocking property, environmental protection property, high strength, high extension and super-strong base surface bonding is prepared.
Description
Technical Field
The invention belongs to the field of waterproof coatings, and relates to a root-blocking environment-friendly polymer cement waterproof coating and a preparation method thereof.
Background
Since the polymer cement waterproof paint is popularized and applied in China in the last 90 th century, the paint has the flexibility of a polymer coating, improves the defect of drying shrinkage deformation of cement mortar, has the rigidity of a cement hydraulic material, can be directly constructed on a wet base surface, has strong bonding force with a base layer, can adjust the flexibility and the strength of the cement mortar according to different waterproof parts, takes water as a dispersion medium, overcomes the defects of asphalt, tar and solvent type waterproof paint, is beneficial to the environment, is convenient to construct, has excellent overall waterproof effect, is widely applied to waterproof construction of toilets, kitchens, building outer walls, underground engineering, reservoirs and the like, and becomes a coating type waterproof paint which is successfully popularized and applied after a polyurethane waterproof paint.
Along with the continuous development of waterproof technology, people have higher and higher requirements on polymer cement waterproof paint, so that the basic performance of the material is required to be met, the material is also required to be non-toxic and harmless, the environmental protection requirement is met, the appearance is attractive, the adhesive force with a base layer is stronger, the water resistance and the corrosion resistance are stronger, and the polymer cement waterproof paint can be used for exposed construction and other functions.
The plant root system puncture resistance has been greatly developed in the field of waterproof coiled materials at present, for example, the root puncture resistant waterproof coiled material can be used for waterproof construction of a planting surface, but the root puncture resistant waterproof coiled material is not related in the field of waterproof coatings, and the conventional waterproof coatings cannot resist plant root systems.
Therefore, it is required to develop a polymer cement waterproof coating material having better root resistance, environmental protection, high strength, high elongation and ultra-strong base surface bonding.
Disclosure of Invention
The invention aims to provide a root-blocking environment-friendly polymer cement waterproof coating and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
a root-blocking environment-friendly polymer cement waterproof coating comprises a component A and a component B, wherein the weight mixing ratio of the component A to the component B is 1:1-1: 1.3.
Further, the component A comprises the following raw materials: high molecular polymer emulsion, root-resisting agent, surfactant, defoaming agent, preservative, dispersing agent, plasticizer, thickening agent, anti-aging agent, high-efficiency nano adhesive and water.
Further, the component A comprises the following materials in parts by weight of 1000: 900 parts of high-molecular polymer emulsion, 5-8 parts of root-resisting agent, 5-8 parts of surfactant, 3-5 parts of defoaming agent, 2-3 parts of preservative, 2-3 parts of dispersing agent, 15-20 parts of plasticizer, 1-3 parts of thickening agent, 1-2 parts of anti-aging agent, 1-2 parts of high-efficiency nano adhesive and 65-117 parts of water.
The high molecular polymer emulsion in the component A is environment-friendly pure acrylic emulsion or styrene-acrylic emulsion; the root-resisting agent is a German imported environment-friendly root-resisting agent (B2); the surfactant is acetylenic diol polyoxyethylene ether (FS-660); the defoaming agent, the dispersing agent and the preservative are high-efficiency auxiliary agents purchased from the market; the plasticizer is dibutyl ester; the thickening agent is hydroxyethyl cellulose or an alkali swelling thickening agent; the anti-aging agent is food-grade Butylated Hydroxyanisole (BHA); the high-efficiency nano adhesive is an environment-friendly modified resin adhesive; the water is deionized water;
further, the component B comprises the following raw materials: cement, ground limestone, quartz powder, kaolin, precipitated barium sulfate, mica powder and graphene.
Further, the component B comprises the following materials in parts by weight of 1000: 500 portions of 415-containing cement, 300 portions of 200-containing heavy calcium carbonate, 200 portions of quartz powder, 50-60 portions of kaolin, 50-60 portions of precipitated barium sulfate, 50-60 portions of mica powder and 3-5 portions of graphene.
The cement in the component B is PO42.5 ordinary portland cement; the filler is 1250-mesh heavy calcium carbonate; the quartz powder is purchased in 300 meshes in the market; the fineness of the functional powder kaolin, the precipitated barium sulfate and the mica powder is 1250-1500 meshes; the graphene is a sp2 hybridized single-layer two-dimensional honeycomb lattice structure;
a preparation method of root-resistant environment-friendly polymer cement waterproof coating,
(1) preparation of the component A: the component A is a water aqua, which is prepared by taking high molecular polymer emulsion as a main material, adding a root-blocking agent, a surfactant, a defoaming agent, a preservative, a dispersing agent, a plasticizer, a thickening agent, an anti-aging agent, a high-efficiency nano adhesive and a small amount of water and stirring and mixing;
the specific preparation process comprises the following steps:
a. weighing the required high-efficiency nano adhesive according to the formula amount, diluting the high-efficiency nano adhesive by 40 times with deionized water, pouring the diluted high-efficiency nano adhesive into a stirrer, stirring the mixture at a speed of 1500r/min for 40min, and pouring the mixture out for later use;
b. diluting the anti-aging agent by 10 times with deionized water for later use;
c. diluting the thickening agent by 10 times with deionized water for later use;
d. weighing the high molecular polymer emulsion with the formula weight, pouring the high molecular polymer emulsion into a stirrer, stirring at the speed of 600r/min, slowly adding the preservative, the dispersing agent, the plasticizer, the root inhibitor, half of the defoaming agent and the surfactant while stirring, and stirring for 30min after the addition;
e. slowly adding the diluted anti-aging agent into a stirrer, and stirring for 30min at a speed of 600 r/min;
f. adding the rest water into a stirrer at one time, and stirring for 15 min;
g. adjusting the stirring speed to 1000r/min, slowly adding the diluted high-efficiency nano adhesive solution, and stirring for 1 h;
h. reducing the speed to 800r/min, adding the diluted thickening agent into a stirrer, and stirring for 40 min;
i. and adding the other half of the defoaming agent into the stirrer, stirring for 20min at the speed of 800r/min, reducing the speed to 400r/min, and stirring for 20min to pour out.
(2) Preparation of the component B: the component B is powder, and the required cement, ground limestone, quartz powder, kaolin, precipitated barium sulfate, mica powder and graphene are weighed according to the formula, and are sequentially added into a powder mixing stirrer and stirred at medium speed for 2 hours;
(3) mixing: weighing a certain weight of the component A, pouring the component A into a mixing stirrer, weighing a certain weight of the component B according to a mixing proportion, slowly pouring the component B into the component A, stirring the component B while pouring at a speed of 600r/min, stirring the component B for 10 to 15min, reducing the speed to 300r/min, and stirring the component B for 5 to 10 min until no obvious bubbles exist in the coating.
Compared with the prior art, the invention has at least one of the following beneficial effects:
the conventional polymer cement waterproof coating cannot resist penetration of plant roots and therefore cannot be used for waterproof construction engineering of a planting surface, but the root-blocking environment-friendly polymer cement waterproof coating provided by the invention can change the growth direction of the plant roots due to the addition of the imported environment-friendly root-blocking agent, has good plant root penetration resistance, can be used for waterproof construction of the planting surface, and solves the problem that the planting surface cannot be constructed by using the coating. The material belongs to a multifunctional environment-friendly material, is non-toxic and harmless, and has no pollution to the environment; the coating can be used for exposure, is corrosion-resistant and acid-alkali-resistant, and can effectively resist ultraviolet rays to achieve the effects of heat preservation and heat insulation, and a protective layer is formed by the coated graphene; the added high-efficiency nano adhesive can enable the material to have better adhesive force with a base layer and can be strongly bonded with concrete, color steel tiles, glass and the like; the material can be added with various water-based color pastes according to the requirements to realize the color mixing treatment of the material; the tensile strength and the elongation at break of the waterproof paint are higher than those of common polymer cement waterproof paint, the production process and the construction process are simple, and the production efficiency and the construction efficiency can be greatly improved, so that the material cost and the labor cost are reduced.
Drawings
FIG. 1 is a graph of tensile strength analysis;
FIG. 2 is a graph showing the retention rate after a special treatment;
FIG. 3 is a graph of analysis of elongation at break;
fig. 4 is a graph of bond strength analysis.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A root-resistant environment-friendly polymer cement waterproof coating comprises a component A and a component B, wherein the mixing weight ratio of the component A to the component B is as follows: 1:1.
The component A comprises 900 parts of acrylic emulsion, 5 parts of surfactant, 5 parts of root inhibitor, 5 parts of defoaming agent, 3 parts of preservative, 2 parts of dispersant, 15 parts of plasticizer, 2 parts of alkali swelling thickener, 1 part of anti-aging agent, 1 part of high-efficiency nano adhesive and 60 parts of deionized water.
The component B comprises 415 parts of ordinary portland cement, 200 parts of heavy calcium carbonate, 200 parts of quartz powder, 60 parts of kaolin, 60 parts of precipitated barium sulfate, 60 parts of mica powder and 5 parts of graphene.
The preparation method comprises the following steps:
a. weighing the required high-efficiency nano adhesive according to the formula amount, diluting the high-efficiency nano adhesive by 40 times with deionized water, pouring the diluted high-efficiency nano adhesive into a stirrer, stirring the mixture at a speed of 1500r/min for 40min, and pouring the mixture out for later use;
b. diluting the anti-aging agent by 10 times with deionized water for later use;
c. diluting the thickening agent by 10 times with deionized water for later use;
d. weighing the high molecular polymer emulsion with the formula weight, pouring the high molecular polymer emulsion into a stirrer, stirring at the speed of 600r/min, slowly adding the preservative, the dispersing agent, the plasticizer, the root inhibitor, the surfactant and half of the defoaming agent while stirring, and stirring for 30min after the addition;
e. slowly adding the diluted anti-aging agent into a stirrer, and stirring for 30min at a speed of 600 r/min;
f. adding the rest water into a stirrer at one time, and stirring for 15 min;
g. adjusting the stirring speed to 1000r/min, slowly adding the diluted high-efficiency nano adhesive solution, and stirring for 1 h;
h. reducing the speed to 800r/min, adding the diluted thickening agent into a stirrer, and stirring for 40 min;
i. adding the other half of defoaming agent into a stirrer, stirring for 20min at 800r/min, then reducing the speed to 400r/min, stirring for 20min, pouring out to obtain a component A, and pouring out the component A for later use;
j. weighing required cement, ground limestone, quartz powder, kaolin, precipitated barium sulfate, mica powder and graphene according to a formula, sequentially adding the materials into a powder mixing stirrer, stirring at a medium speed for 2 hours to obtain a component B, and pouring the component B for later use;
weighing a certain weight of the component A, pouring the component A into a mixing stirrer, weighing the component B according to a mixing proportion, slowly pouring the component B into the component A, stirring the component A while pouring at a speed of 600r/min, reducing the speed to 300r/min after stirring for 10-15min, stirring for 5-10 min, and preparing a sample when no obvious air bubbles are in the stirrer.
Comparative example 1: comparative example 1 is the same process as example 1 except that the root-stopper is replaced equally with deionized water in comparative example 1.
Example 2 and comparative example 2: example 2 and comparative example 2 the process is the same as that of example 1, and example 2 is different from comparative example 2 in that the root inhibitor is equally replaced by deionized water in comparative example 2.
Example 3 and comparative example 3: example 3 and comparative example 3 are the same as example 1, and comparative example 3 is a general polymer cement waterproof coating.
The compositions of examples 1-3, comparative examples 1-3 are shown in Table 1:
TABLE 1
Experimental analysis:
examples 1 to 3 and comparative examples 1 to 3 were examined.
1. And (3) detection process:
(1) the solid content, the tensile strength, the elongation at break, the low-temperature flexibility, the bonding strength, the impermeability and the sample preparation, the maintenance and the detection are carried out according to GB/T23445-;
(2) the root puncture resistance test method is designed according to appendix A in GB/T35468-2017, and the test box is designed into a wet layer, a protective layer, a coating layer, a test coating layer, a planting soil layer and plants from the bottom to the top;
a. the test chamber uses a transparent bottom plate so as to observe the root puncture condition;
b. the wet layer is made of an excellent ceramsite (with the granularity of 8mm-16mm) suitable for a cultivation system, and the thickness of the ceramsite is (50 +/-5) mm;
c. the protective layer is made of polyester non-woven fabric and is placed on the wet layer and below the test coating layer;
d. the planting soil layer is a mixture of uniform raw materials with good and applicable quality and long-term stable performance;
e. the plants are selected from pyracantha fortuneana with similar growth vigor;
f. the test box is placed outdoors in a place with sufficient illumination, and is adapted and watered regularly to ensure the normal growth of plants;
the test time is 1 year, and whether the plant root system penetrates through the coating or not is observed after 1 year as a root penetration resistance test result.
2. And (3) data comparison analysis:
the results are shown in Table 2 and FIGS. 1-4:
TABLE 2
As can be seen from fig. 2 and tables 1-4:
(1) the tensile strength is analyzed, and the observation data shows that the tensile strength, heat resistance, alkali resistance, water resistance and ultraviolet resistance of the powder obtained in examples 1, 2, 3, 1 and 2 are higher than those of the powder obtained in comparative example 3 without the functional powder after the functional powder such as kaolin, precipitated barium sulfate, mica powder, graphene and the like is added;
(2) the breaking elongation is analyzed, so that the breaking elongation of the pure acrylic emulsion is higher than that of the styrene-acrylic emulsion, and the addition amount of the emulsion is in direct proportion to the breaking elongation;
(3) the analysis on the bonding strength shows that the bonding strength of the examples 1, 2, 3, 1 and 2 is obviously higher than that of the comparative example 1 without the high-efficiency nano adhesive after the high-efficiency nano adhesive is added;
(4) when the root penetration resistance is analyzed, the plants do not penetrate in the examples 1, 2 and 3 after the root-resisting agent is added, but the plant root systems cannot be prevented from penetrating in the cases of the comparative examples 1, 2 and 3 without the root-resisting agent;
(5) the data analysis shows that the material has excellent performance, heat resistance, water resistance, alkali resistance and ultraviolet resistance which are superior to those of common materials, and particularly, the material has obvious root resistance effect and can be used for planting surfaces.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A root-resistant environment-friendly polymer cement waterproof coating is characterized in that: comprises a component A and a component B, wherein the weight mixing ratio of the component A to the component B is 1:1-1: 1.3.
2. The root-blocking environment-friendly polymer cement waterproof coating material as claimed in claim 1, characterized in that: the component A comprises the following raw materials: high molecular polymer emulsion, a root-resisting agent, a surfactant, a defoaming agent, a preservative, a dispersing agent, a plasticizer, a thickening agent, an anti-aging agent, a high-efficiency nano adhesive and water.
3. The root-blocking environment-friendly polymer cement waterproof coating material as claimed in claim 2, characterized in that: the component A comprises the following materials in parts by weight of 1000: 900 parts of high-molecular polymer emulsion, 5-8 parts of root-resisting agent, 5-8 parts of surfactant, 3-5 parts of defoaming agent, 2-3 parts of preservative, 2-3 parts of dispersing agent, 15-20 parts of plasticizer, 1-3 parts of thickening agent, 1-2 parts of anti-aging agent, 1-2 parts of high-efficiency nano adhesive and 65-117 parts of water.
4. The root-blocking environment-friendly polymer cement waterproof coating material as claimed in claim 1, characterized in that: the component B comprises the following raw materials: cement, ground limestone, quartz powder, kaolin, precipitated barium sulfate, mica powder and graphene.
5. The root-blocking environment-friendly polymer cement waterproof coating material as claimed in claim 4, wherein: the component B comprises the following materials in parts by weight of 1000: 500 portions of 415-containing cement, 300 portions of 200-containing heavy calcium carbonate, 200 portions of quartz powder, 50-60 portions of kaolin, 50-60 portions of precipitated barium sulfate, 50-60 portions of mica powder and 3-5 portions of graphene.
6. The method for preparing the root-blocking environment-friendly polymer cement waterproof coating as claimed in any one of claims 1 to 5, wherein:
(1) preparation of the component A: the component A is a water aqua, which is prepared by taking high molecular polymer emulsion as a main material, adding a root-blocking agent, a surfactant, a defoaming agent, a preservative, a dispersing agent, a plasticizer, a thickening agent, an anti-aging agent, a high-efficiency nano adhesive and a small amount of water and stirring and mixing;
(2) preparation of the component B: the component B is powder, and the required cement, ground limestone, quartz powder, kaolin, precipitated barium sulfate, mica powder and graphene are weighed according to the formula, and are sequentially added into a powder mixing stirrer and stirred at medium speed for 2 hours;
(3) mixing: weighing a certain weight of the component A, pouring the component A into a mixing stirrer, weighing a certain weight of the component B according to a mixing proportion, slowly pouring the component B into the component A, stirring the component B while pouring at a speed of 600r/min, stirring the component B for 10 to 15min, reducing the speed to 300r/min, and stirring the component B for 5 to 10 min until no obvious bubbles exist in the coating.
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