CN114574015A - Antibacterial algae-attached coating for concrete - Google Patents
Antibacterial algae-attached coating for concrete Download PDFInfo
- Publication number
- CN114574015A CN114574015A CN202210248799.0A CN202210248799A CN114574015A CN 114574015 A CN114574015 A CN 114574015A CN 202210248799 A CN202210248799 A CN 202210248799A CN 114574015 A CN114574015 A CN 114574015A
- Authority
- CN
- China
- Prior art keywords
- parts
- algae
- concrete
- coating
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D131/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an antibacterial alga-attached coating for concrete. The antibacterial algae coating for concrete comprises sodium silicate, potassium silicate, a surfactant, OIT, Diuron, a polymer emulsion, a defoaming agent, a film forming aid, superfine cement powder, an early strength agent and a water reducing agent. The antibacterial algae coating for the concrete acts on the surface of the concrete in an overspray construction mode, a compact crystal structure is generated on the surface of the concrete, a compact nano protective layer is formed, the smoothness is high, the adhesion of mildew and algae can be effectively inhibited, and the concrete has the functions of resisting common germs, mildew and algae, inhibiting drug resistance germs, and being efficient and durable.
Description
Technical Field
The invention relates to an antibacterial algae-attached coating for concrete, and belongs to the technical field of concrete coatings.
Background
Algae, which is a lower organism abundant in nature, can absorb moisture from the air and remain in the surrounding space for a long time, thereby causing great damage to coatings of outdoor buildings, underground works, and the like exposed to natural conditions. Although the existing traditional coating has certain efficacy in controlling antibiosis and algae resistance, algae still adhere to a certain degree, and the existing coating is further improved in order to further solve the problem of invasion and adhesion of bacteria and algae.
Disclosure of Invention
Technical problem to be solved
In order to solve the above problems of the prior art, the present invention provides an antibacterial algae-adhering coating for concrete.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
an antibacterial algae-attached paint for concrete comprises sodium silicate, potassium silicate, a surfactant, OIT (2-n-octyl-4-isothiazoline-3-ketone), Diuron (Diuron), a polymer emulsion, a defoaming agent, a film-forming aid, superfine cement powder, an early strength agent and a water reducing agent.
The coating with the antibacterial algae attached to the concrete preferably comprises, by weight, 15-20 parts of sodium silicate, 15-20 parts of potassium silicate, 1-2 parts of surfactant, 0.5-1 part of OIT, 0.5-1 part of Diuron, 15-20 parts of polymer emulsion, 0.2-0.5 part of defoaming agent, 0.5-2 parts of film forming assistant, 1-5 parts of superfine cement powder, 1.5-5.0 parts of early strength agent and 0.5-1.0 part of water reducing agent.
The antibacterial alga-attached paint for concrete is preferably used with the amount of water added being 35 to 40 parts.
In the antibacterial algae-adhering paint for concrete as described above, the surfactant is preferably sodium stearate (CH)3(CH2)16COONa), the polymer emulsion is polyvinyl acetate, the defoaming agent is polysiloxane, the film-forming assistant is propylene glycol butyl ether, and the superfine cement powder is powder with the particle size of 100 percent smaller than 30 mu mThe early strength agent is nitrite, and the water reducing agent is a naphthalene sulfonate water reducing agent. Further, preferably, the nitrite is sodium nitrite and potassium nitrite, and the naphthalene sulfonate water reducing agent is PNS, NNO, NF, FDN, UNF or MF.
The preparation method of the antibacterial algae-attached paint for concrete preferably comprises the following steps: sequentially adding sodium silicate, potassium silicate, a defoaming agent, a film forming aid, an early strength agent, a water reducing agent, OIT, Diuron, sodium stearate, a polymer emulsion and superfine cement powder, mixing uniformly, adding 35-40 parts of water, and stirring uniformly to form the coating.
The OIT used in the invention is dissolved in an organic solvent in a liquid state, is slightly soluble in water, has low toxicity and high efficiency, has a killing effect on mould and can achieve an ideal mould-proof effect.
A Diuron: the compound herbicide has the advantages of low cost, low water solubility, no mildew-proof function, inhibition of photosynthesis by preventing the formation of ATP and NADH, effects of herbicide, photosystem-II inhibitor, environmental pollutant and mitochondrial respiratory chain inhibitor, killing effect on crops, and good algae resistance when being used together with OIT. Adding OIT and Diuron according to a certain proportion to obtain a compound product. As per OIT: the weight ratio of the Diuron to the raw material is 0.5-1.5: 1, so that the propagation of mould and algae can be effectively prevented.
(III) advantageous effects
The invention has the beneficial effects that:
the antibacterial algae-attached paint for concrete provided by the invention acts on the surface of concrete in a coating or spraying construction mode to generate a compact crystal structure on the surface of concrete, so that a compact nano protective layer is formed, the smoothness is high, the adhesion of mold and algae can be effectively inhibited, the concrete has the functions of resisting common bacteria, mold and algae, inhibiting drug-resistant bacteria, and being efficient and durable, and the algae-removing component is added, so that the corrosion of algae to a concrete base surface is further avoided.
The antibacterial algae-attached paint for concrete provided by the invention is the simplest and most effective method for realizing no pollution to the environment. The method is economical and convenient, has long-acting effect, can overcome the defects of bad smell, short drug effect, complex operation, large investment and the like of a physical and chemical method, and has very wide application field.
Drawings
FIG. 1 is a photograph of the surface of each test block before and after soaking in chlorella solution.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. The superfine cement powder used in the invention is PO 42.5 portland cement, the fineness of the cement powder is 800 meshes, the superfine cement powder is purchased from Beijing Jingyuan Xingda building material Co., Ltd, and other reagents can adopt products purchased from the market.
Example 1
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of sodium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polymer emulsion (polyvinyl acetate), 2 parts of superfine cement powder, 0.5 part of OIT and 1 parts of Diuron.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol monobutyl ether, nitrite, a naphthalene sulfonate water reducer, OIT, Diuron, sodium stearate, a polymer emulsion and superfine cement powder, mixing uniformly, adding 35 parts of water, and stirring uniformly to obtain the coating.
The obtained paint is smeared on a concrete test block with the thickness of 100mm multiplied by 100mm, and the surface of the test block is uniformly covered by the paint.
The following items were measured according to the methods in GB/T23445-2009 and JG/T26-2002, and the following test methods were used for antibacterial algaecide, and the measurement results in the other examples were day 12 test data.
S1, selecting algae from the water sample
Adopting a set-type microscope method: fixing a 1L water sample and a Lugo reagent in a container, naturally settling for 24h, absorbing supernatant by using a siphoning method, concentrating to a constant volume of 30-50 mL, putting 1mL into a blood counting plate, performing microscopic counting under a forward microscope, and selecting a large amount of algae as target algae. And determining that the chlorella is used as the target algae for culture after detection.
S2 cultivation of selected algae
The method comprises the following steps: inoculating strain in BG-11 culture solution at OD value of 730nm of 0.05 in triangular flask, culturing at gentle shaking speed of 70rpm and illumination intensity of 35 μmol.m with 4100K fluorescent tube as light source-2.s-1(about 2000lux), photoperiod 10L: 14D, and the culture temperature is 25 +/-1 ℃. Culturing experimental algae to logarithmic growth phase, centrifuging at 4000rpm, and suspending in 1/3BG-11 culture solution until cell density is 106The volume is ready for use.
S3, placing the concrete in the algae soaking solution for soaking
The method comprises the following steps: taking an original concrete test block (a control) and a test block (a test article) coated with the antibacterial algae paint, wherein the test blocks are 100mm multiplied by 100mm, standing in square plastic boxes respectively, soaking in the algae liquid cultured in the step S2, and immersing half of the test blocks in the algae liquid, namely, the height of the buried test blocks is 5 cm. The conditions of illumination and temperature are the same as the culture of algae seeds, and the uniformity is ensured by stirring twice a day.
S4, observing the breeding condition of bacteria and algae
Measuring the growth condition of algae on the surface of the test block every other day, scanning and recording or photographing the growth condition through a chlorophyll fluorescence imager, taking out the test block from the algae liquid, standing on a square culture dish for 1.5 hours to dry the surface, scanning within the range of excitation wavelength of 620nm, and measuring the chlorophyll fluorescence value of the soaking line and the soaking part of the test block at the emission wavelength of 695nm to 770 nm. The results of the tests performed on the original concrete test block without any treatment when the characterization measurements were performed using a chlorophyll fluorescence imager are shown in the following table. The photographing result is shown in figure 1, and the fluorescence intensity of the total chlorophyll of the algae liquid soaked in the concrete test block is measured to characterize the growth condition of the algae liquid. In the experimental process, the fact that the algae liquid obviously dies after being cultured for 6 days is found, the algae liquid is replaced by new algae liquid for soaking culture, and therefore the fluorescence value detected can be increased and then reduced; the experiment was stopped after 12 days of measurement.
Chlorophyll fluorescence relative value of chlorella on surface of concrete test block
For verifying the performance of the antibacterial algae coating, comparing the chlorophyll fluorescence relative fluorescence value of surface chlorella of an immersed part measured by an original concrete test block (namely blank control) which is not coated with the antibacterial algae coating with that of a concrete test block which is coated with the antibacterial algae coating, if the fluorescence value of the concrete test block coated with the antibacterial algae coating is 50-60 percent less than that of the original concrete test block which is not coated with the antibacterial algae coating, the antibacterial algae coating is better, and if the fluorescence value of the concrete test block coated with the antibacterial algae coating is not much different from that of the original concrete test block which is not coated with the antibacterial algae coating, the antibacterial algae coating is not good or poor.
The coating obtained in this example 1 was uniformly applied to a concrete test block of 100 mm. times.100 mm, and the results of the measurement are shown in Table 1, wherein the antibacterial-algaecide property is the fluorescence value measured on the submerged portion on the twelfth day.
TABLE 1
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 474 |
Example 2
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of sodium nitrite and a water reducer, namely a naphthalene sulfonate water reducer: 1 part of PNS, 20 parts of polyvinyl acetate, 2 parts of superfine cement powder, 1 parts of OIT and 0.5 part of Diurone.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, sodium nitrite, a naphthalene sulfonate water reducing agent, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder, mixing uniformly, adding 35 parts of water, and stirring uniformly to obtain the coating.
The coating obtained above was uniformly applied to a concrete block of 100 mm. times.100 mm.
The detection method was the same as in example 1, and the measurement results are shown in Table 2.
TABLE 2
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 497 |
Example 3
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of potassium nitrite and a water reducing agent: PNS1 parts, polyvinyl acetate 20 parts, superfine cement powder 2 parts, OIT 0.7 part and Diurone 0.7 part.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, potassium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder and mixing. And after uniformly mixing, adding 35 parts of water, and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were as shown in FIG. 3.
TABLE 3
Example 4
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 15 parts of sodium silicate, 20 parts of potassium silicate, 1 part of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of potassium nitrite and a water reducing agent: PNS1 parts, polyvinyl acetate 20 parts, superfine cement powder 2 parts, OIT 0.5 part and Diuron1 parts.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, potassium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 35 parts of water, and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were as shown in 4.
TABLE 4
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.0 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 475 |
Example 5
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 20 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of sodium nitrite and a water reducing agent: PNS1 parts, polyvinyl acetate 20 parts, superfine cement powder 4 parts, OIT 0.5 part and Diurone 0.5 part.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, sodium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were 5.
TABLE 5
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.0 |
| Elongation at break | ％ | 92 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 535 |
Example 6
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 20 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of potassium nitrite and a water reducing agent: PNS1 parts, polyvinyl acetate 20 parts, superfine cement powder 4 parts, OIT1 part and Diuron0.5 part.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, potassium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 35 parts of water, and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were as shown in 6.
TABLE 6
| Item | Unit | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.8 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 516 |
Example 7
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 15 parts of sodium silicate, 15 parts of potassium silicate, 1 part of sodium stearate, 1.5 parts of propylene glycol butyl ether, 0.5 part of polysiloxane, 3 parts of sodium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polyvinyl acetate, 4 parts of superfine cement powder, 0.5 part of OIT and 1 parts of Diuron.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, sodium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were 7.
TABLE 7
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.0 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 484 |
Example 8
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1.5 parts of propylene glycol butyl ether, 0.5 part of polysiloxane, 5 parts of sodium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polyvinyl acetate, 4 parts of superfine cement powder, 0.5 part of OIT and 1 parts of Diuron.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, sodium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The coating obtained above was applied to a concrete block of 100mm X100 mm.
The detection method was the same as in example 1, and the measurement results were 8.
TABLE 8
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 499 |
Example 9
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1.5 parts of propylene glycol butyl ether, 0.5 part of polysiloxane, 5 parts of sodium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polyvinyl acetate, 4 parts of superfine cement powder, 0.5 part of OIT and 0.7 part of Diurone.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, sodium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement result was 9.
TABLE 9
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 478 |
Example 10
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 20 parts of potassium silicate, 2 parts of sodium stearate, 1.5 parts of propylene glycol butyl ether, 0.5 part of polysiloxane, 5 parts of potassium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polyvinyl acetate, 4 parts of superfine cement powder, 0.7 part of OIT and 1 parts of Diuron.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, potassium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were 10.
Example 11
An antibacterial algae-attached coating for concrete is prepared from the following raw materials in parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1.5 parts of propylene glycol butyl ether, 0.5 part of polysiloxane, 5 parts of potassium nitrite and a water reducing agent: PNS1 parts, polyvinyl acetate 20 parts, superfine cement powder 4 parts, OIT 0.7 part and Diurone 0.5 part.
Preparation of the coating: sequentially adding sodium silicate, potassium silicate, polysiloxane, propylene glycol butyl ether, potassium nitrite, PNS, OIT, Diuron, sodium stearate, polyvinyl acetate and superfine cement powder in sequence for mixing; and after uniformly mixing, adding 40 parts of water and uniformly stirring to obtain the coating.
The paint obtained above was smeared on a concrete test block of 100mm × 100mm × 100 mm.
The detection method was the same as in example 1, and the measurement results were as shown in 4.
TABLE 4
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 1.0 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 432 |
Comparative example 1
The following raw materials are prepared according to parts by weight: 20 parts of sodium silicate, 15 parts of potassium silicate, 2 parts of sodium stearate, 1 part of propylene glycol butyl ether, 0.4 part of polysiloxane, 3 parts of sodium nitrite and a water reducing agent: 1 part of PNS, 20 parts of polyvinyl acetate, 2 parts of superfine cement powder and 35 parts of water.
Preparation of the coating: sequentially adding and mixing sodium silicate, potassium silicate, polysiloxane, propylene glycol monobutyl ether, sodium nitrite, a naphthalene sulfonate water reducing agent, sodium stearate, a polymer emulsion and superfine cement powder, uniformly mixing, adding 35 parts of water, and uniformly stirring to obtain the coating.
The coating obtained above was applied to a concrete block of 100 mm. times.100 mm by the same measurement method as in example 1, and the results are shown in Table 12.
TABLE 12
| Item | Unit of | Numerical value |
| Tensile strength | MPa | 2.1 |
| Elongation at break | ％ | 90 |
| Adhesive strength | MPa | 0.9 |
| Impermeability to water | MPa | 0.8 |
| Antibacterial and algicidal properties | / | 972 |
The results show that the antibacterial and anti-algae performances of the antibacterial algae coating provided by the invention are obviously improved compared with a comparison ratio, and the anti-algae performance is superior.
The above results show that the antibacterial algae coating prepared by the invention has better antibacterial algae resistance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art can change or modify the technical content disclosed above into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (6)
1. The paint for preventing the adhesion of bacteria and algae to concrete is characterized by comprising sodium silicate, potassium silicate, a surfactant, OIT, Diuron, a polymer emulsion, a defoaming agent, a film forming aid, superfine cement powder, an early strength agent and a water reducing agent.
2. The antibacterial algae-adhering coating for concrete according to claim 1, wherein the sodium silicate is 15 to 20 parts by weight, the potassium silicate is 15 to 20 parts by weight, the surfactant is 1 to 2 parts by weight, the OIT is 0.5 to 1 part by weight, the Diuron is 0.5 to 1 part by weight, the polymer emulsion is 15 to 20 parts by weight, the antifoaming agent is 0.2 to 0.5 part by weight, the film forming aid is 0.5 to 2 parts by weight, the ultrafine cement powder is 1 to 5 parts by weight, the early strength agent is 1.5 to 5.0 parts by weight, and the water reducing agent is 0.5 to 1.0 part by weight.
3. The antibacterial algae-adhering coating for concrete according to claim 1, wherein the amount of water added at the time of use is 35 to 40 parts.
4. The paint for antimicrobial algae attachment for concrete according to claim 1, wherein the surfactant is sodium stearate, the polymer emulsion is polyvinyl acetate, the defoaming agent is polysiloxane, the film forming aid is propylene glycol butyl ether, the early strength agent is nitrite, and the water reducing agent is a naphthalene sulfonate water reducing agent.
5. The antibacterial algae-adhering coating for concrete according to claim 4, wherein the nitrite is sodium nitrite, potassium nitrite, and the naphthalenesulfonate water-reducing agent is PNS, NNO, NF, FDN, UNF, or MF.
6. The method for preparing an antibacterial algae-attached paint for concrete according to any one of claims 1 to 4, wherein the raw materials are as follows: sequentially adding sodium silicate, potassium silicate, a defoaming agent, a film forming aid, an early strength agent, a water reducing agent, OIT, Diuron, sodium stearate, a polymer emulsion and superfine cement powder, mixing uniformly, adding 35-40 parts of water, and stirring uniformly to form the coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248799.0A CN114574015B (en) | 2022-03-14 | 2022-03-14 | Antibacterial algae-attached coating for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248799.0A CN114574015B (en) | 2022-03-14 | 2022-03-14 | Antibacterial algae-attached coating for concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114574015A true CN114574015A (en) | 2022-06-03 |
| CN114574015B CN114574015B (en) | 2023-06-27 |
Family
ID=81779610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210248799.0A Active CN114574015B (en) | 2022-03-14 | 2022-03-14 | Antibacterial algae-attached coating for concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114574015B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836065A (en) * | 2022-06-10 | 2022-08-02 | 杭州本创科技有限公司 | Water-based inorganic anti-mildew ceramic finishing coat and preparation method and application thereof |
| CN115353786A (en) * | 2022-09-19 | 2022-11-18 | 广东巴德富新材料有限公司 | Water-based exterior wall coating and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911597A (en) * | 2012-10-23 | 2013-02-06 | 江苏博特新材料有限公司 | Environment-friendly coating for protecting bare concrete and preparation method thereof |
| CN103601442A (en) * | 2013-10-31 | 2014-02-26 | 德高（广州）建材有限公司 | Waterproof slurry with sterilization function for toilet bath room decoration surfaces |
| CN103694830A (en) * | 2013-12-06 | 2014-04-02 | 成都嘉新科技集团有限公司 | Polymer cement waterproof coating |
| CN108929603A (en) * | 2018-07-16 | 2018-12-04 | 广东美涂士建材股份有限公司 | Resist general saline and alkaline elastic outer wall emulsion paint and preparation method thereof |
| CN111825411A (en) * | 2020-06-24 | 2020-10-27 | 佳固士(浙江)新材料有限公司 | Back water surface waterproof material capable of stopping open water and self-healing and preparation method and application thereof |
| CN112143313A (en) * | 2020-09-27 | 2020-12-29 | 天津佰思特交通科技股份有限公司 | Polymer concrete protective coating material and preparation method thereof |
| CN113873886A (en) * | 2019-05-31 | 2021-12-31 | 特洛伊公司 | Overcoat compositions |
-
2022
- 2022-03-14 CN CN202210248799.0A patent/CN114574015B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911597A (en) * | 2012-10-23 | 2013-02-06 | 江苏博特新材料有限公司 | Environment-friendly coating for protecting bare concrete and preparation method thereof |
| CN103601442A (en) * | 2013-10-31 | 2014-02-26 | 德高（广州）建材有限公司 | Waterproof slurry with sterilization function for toilet bath room decoration surfaces |
| CN103694830A (en) * | 2013-12-06 | 2014-04-02 | 成都嘉新科技集团有限公司 | Polymer cement waterproof coating |
| CN108929603A (en) * | 2018-07-16 | 2018-12-04 | 广东美涂士建材股份有限公司 | Resist general saline and alkaline elastic outer wall emulsion paint and preparation method thereof |
| CN113873886A (en) * | 2019-05-31 | 2021-12-31 | 特洛伊公司 | Overcoat compositions |
| CN111825411A (en) * | 2020-06-24 | 2020-10-27 | 佳固士(浙江)新材料有限公司 | Back water surface waterproof material capable of stopping open water and self-healing and preparation method and application thereof |
| CN112143313A (en) * | 2020-09-27 | 2020-12-29 | 天津佰思特交通科技股份有限公司 | Polymer concrete protective coating material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨成德, 科学技术文献出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836065A (en) * | 2022-06-10 | 2022-08-02 | 杭州本创科技有限公司 | Water-based inorganic anti-mildew ceramic finishing coat and preparation method and application thereof |
| CN114836065B (en) * | 2022-06-10 | 2024-03-22 | 杭州本创科技有限公司 | Water-based inorganic anti-mildew ceramic finishing paint and preparation method and application thereof |
| CN115353786A (en) * | 2022-09-19 | 2022-11-18 | 广东巴德富新材料有限公司 | Water-based exterior wall coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114574015B (en) | 2023-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114574015A (en) | Antibacterial algae-attached coating for concrete | |
| Cadée et al. | Primary production of the benthic microflora living on tidal flats in the Dutch Wadden Sea | |
| Crawford et al. | Influence of zinc and iron enrichments on phytoplankton growth in the northeastern subarctic Pacific | |
| JP2002526427A (en) | Antifouling agent | |
| CN1156471A (en) | Anti-fouling compositions | |
| US4154818A (en) | Gel product for destroying harmful marine organisms and method of applying the same | |
| Miles et al. | Diel variation in microphytobenthic productivity in areas of different tidal amplitude | |
| Sha et al. | Eco-friendly self-polishing antifouling coating via eugenol ester hydrolysis | |
| NO326673B1 (en) | Use of a compound selected from the group consisting of (?) - 4- [1- (2,3-dimethylphenyl) ethyl] -1H-imidazole monohydrochloride and 2- (2,6-dichloro-aniline ) -2-Imidazoline as a means of inhibiting marine biofouling | |
| Mardones et al. | Increasing the effectiveness of a liquid biocide component used in antifungal waterborne paints by its encapsulation in mesoporous silicas | |
| Randazzo et al. | Anti-fouling additives for the consolidation of archaeological mortars in underwater environment: Efficacy tests performed on the apsidal fishpond of Castrum Novum (Rome, Italy) | |
| DE4002471C2 (en) | Use of a microbiocidal agent in the manufacture of concrete roof tiles | |
| Harris et al. | In situ visualisation of fungi in soil thin sections: problems with crystallisation of the fluorochrome FB 28 (Calcofluor M2R) and improved staining by SCRI Renaissance 2200 | |
| CN111574658B (en) | Structure of acrylic ester antifouling resin grafted with benzisothiazolinone formate monomer and preparation method thereof | |
| CN110726804B (en) | Quick evaluation method for antifouling performance of bionic and low-surface-energy marine antifouling coating | |
| Zhang et al. | Transparent hydrophilic-oleophobic waterborne coating for multifunctional applications | |
| US20010051274A1 (en) | Antifouling compounds and uses thereof | |
| Prieto et al. | Deleterious effect plastic-based biocides on back-ventilated granite facades | |
| Onn et al. | Morphology and characterization study on effective microorganism (EM) water based epoxy coatings | |
| CN104073045A (en) | Application of halogenated indole and derivatives thereof as marine antifouling agent | |
| CN111793463B (en) | Preparation method of antibacterial and mildewproof silicone sealant and product thereof | |
| CN102701786A (en) | Water-based protective agent for stone and preparation method and application of protective agent | |
| US4168174A (en) | Marine antifoulant processes | |
| RU2028379C1 (en) | Method of cultivation of fungus drechslera rostrata (dreachler/richardson et fraser) | |
| Kosel et al. | Growth of xerophilic fungi on model paint samples on glass and wooden supports under low humidity conditions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |