CN109897514A - A kind of aqueous polyurethane antibiotic paint and preparation method for inside ultrafiltration pond - Google Patents
A kind of aqueous polyurethane antibiotic paint and preparation method for inside ultrafiltration pond Download PDFInfo
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Abstract
The present invention provides a kind of aqueous polyurethane antibiotic paint and preparation method thereof for inside ultrafiltration pond, belongs to technical field of coatings.The aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by percentage to the quality, it is prepared by the following raw material: 40-60 parts of water-based hydroxyl polyacrylic acid dispersion, 2-3 parts of dispersing agent, 1-2 parts of defoaming agent, 2-4 parts of moistening flatting agent, 3-5 parts of coalescing agent, 1-2 parts of antifreezing agent, 20-30 parts of pigments and fillers, 10-30 parts of the 4A zeolite solution of silver ion doping, 70-90 parts of isocyanate curing agent, 15-25 parts of solvent.Aqueous polyurethane antibiotic paint of the present invention for inside ultrafiltration pond, can effectively inhibit the bacterial micro-organism of coating surface to generate, strong antibacterial；Compact in paint film degree is high, and water resistance is strong, hardness is high, chemical resistance is good.
Description
Technical field
The present invention relates to a kind of aqueous polyurethane antibiotic paints and preparation method thereof for inside ultrafiltration pond, belong to painting
Material field.
Background technique
Ultrafiltration pond produces the transfer pond that water enters counter-infiltration system as ultrafiltration system, acts on very crucial.Ultrafiltration water
Pond material has a different types material such as glass reinforced plastic, stainless steel, concrete, and the ultrafiltration pond of concrete structure because its low cost,
It easy to maintain, the advantages that capacity is big, is used widely in large-size thermal power plant；It is reverse osmosis to be used as pro desalting device, with its height
The salt rejection rate of effect on producing desalination hydraulic art, but due to the accuracy of reverse osmosis membrane, pollutes water inlet by large-scale application
Object index has a strict demand, and the substance for causing pollutant index higher have minute solid particles object, organic matter, microorganism and its
Secretion.Ultrafiltration pond will prevent external contaminant as reverse osmosis entrance and enter, and guarantee water stabilization.
Interior walls common coating in ultrafiltration pond is water-borne acrylic coatings at present, can be formed and be protected in concrete surface
Cuticula blocks gap and the microscopic checks of concrete structure, smile solid particle, organic matter and the microorganism effectivelying prevent in water
It is endangered Deng caused by pool inner wall.Traditional coating can meet general requirement inside pond, but during the broiling summer, ultrafiltration
Comparatively closed space inside pond, temperature and humidity is higher, easily causes the breeding of microorganism, and existing water at present
Property polyurethane coating does not have powerful antibacterial ability, therefore micro- life of frequent periodic cleaning ultrafiltration pool inner wall is wanted in summer
Object, this considerably increases cost of human and material resources, also easily cause reverse osmosis equipment operation hidden danger.Therefore, it invents a resistance to
It is aqueous it is strong, good weatherability, hardness are high, it is decorative it is strong, without precipitate, strong antibacterial and all kinds of chemical attacks can be resisted
Environmental Protective Water-paint is extremely urgent.
Summary of the invention
The technical problem to be solved by the present invention is to existing coating to have preferable anti-corrosive properties and preferable weatherability, still
Do not have stronger antibacterial ability and enhanced water resistance, and then provides a kind of low, heat-resist, resistance to antimicrobial efficiency height, toxicity
Hou Xinggao and the features such as excellent chemical-resistance for inside ultrafiltration pond aqueous polyurethane antibiotic paint and its preparation side
Method.
In order to solve the above-mentioned technical problems, the present invention provides a kind of aqueous polyurethane antibacterials for inside ultrafiltration pond
Coating is prepared by the component of following parts by weight: 40-60 parts of water-based hydroxyl polyacrylic acid dispersion, disappears at 2-3 parts of dispersing agent
1-2 parts of infusion, 2-4 parts of moistening flatting agent, 3-5 parts of coalescing agent, 1-2 parts of antifreezing agent, 20-30 parts of pigments and fillers, silver ion doping
10-30 parts of 4A zeolite solution, 70-90 parts of isocyanate curing agent, 15-25 parts of solvent.
Further, the water-based hydroxyl polyacrylic acid dispersion be the first resin of water-based hydroxyl polyacrylic acid dispersion and
The mixture of water-based hydroxyl polyacrylic acid the second resin of dispersion, the first resin of the water-based hydroxyl polyacrylic acid dispersion and water
Property the second resin of poly- hydroxyl polyacrylic acid dispersion addition mass ratio be (2~3): 1；Wherein, the water-based hydroxyl polyacrylic acid
The solid content of the first resin of dispersion is 44 ± 5wt%, and pH value 8.5, hydroxy radical content value is 3.3%；The water-based hydroxyl is poly-
The solid content of the second resin of acrylic acid dispersion is 42wt%, pH value 7.7, hydroxy radical content 2%.
Further, the antifreezing agent is ethylene glycol.
Further, the 4a zeolite solution of silver ion doping the preparation method comprises the following steps: being made using 1g/L silver nitrate solution
For solvent, 30g/L 4a zeolite solution is prepared, while carrying out high-speed stirred, mixing speed 500r/min, stirring with dispersion machine
Time is 5min, until dispersion is completely to get the 4A zeolite solution adulterated to silver ion.
Further, the isocyanate curing agent is two kinds of isocyanate curing agent blendings, the first cured with isocyanates
Agent be the hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate, NCO content 20.7wt%~21.7wt%,
Viscosity is 3500 ± 1000mpas, density 1.16g/cm at 23 DEG C3；Second isocyanate curing agent is based on isophorone two
The hydrophilic modifying aliphatic polymeric isocyanate of isocyanates, NCO content are 8.9wt%~9.9wt%, non-volatile part content 70 ±
2wt%, viscosity is 600 ± 200mpas, density 1.07g/cm at 23 DEG C3；First isocyanate curing agent and the second isocyanic acid
The mass ratio of the additive amount of ester curing agent is (1-2): 1.
Further, the present invention provides the production sides for the aqueous polyurethane antibiotic paint inside ultrafiltration pond
Method, comprising the following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
The invention has the following advantages over the prior art:
(1) the aqueous polyurethane antibiotic paint of the present invention for inside ultrafiltration pond, for the first time in polyurethane coating
4A Zeolite support load silver ion is added, can effectively inhibit the bacterial micro-organism of coating surface to generate, strong antibacterial；Paint film
Consistency is high, and water resistance is strong, hardness is high, chemical resistance is good.
(2) the aqueous polyurethane antibiotic paint of the present invention for inside ultrafiltration pond, further limits the hydroxyl
Polyacrylic acid dispersion uses the hydroxyl polyacrylic acid dispersion of the first resin and the second resin blending, since the first resin has
The characteristic of high solids content, high molecular weight, the second resin collective effect that with hydroxy radical content be 2%, pH value is 7.7, further
It limits isocyanate curing agent and uses two kinds of isocyanate curing agent blendings, while limiting the first curing agent as based on hexa-methylene
The hydrophilic aliphatic polyisocyanate of diisocyanate (HDI), the second curing agent are based on isoflurane chalcone diisocyanate
(IPDI) hydrophilic modifying aliphatic polymeric isocyanate, while the first curing agent and the second curing agent are limited with of the present invention
Specific physical property, the mass ratio of the additive amount of the first curing agent and the second curing agent is (1-2) when use: 1, it is aqueous with mixing
Hydroxyl polyacrylic acid dispersion is used cooperatively, the water paint being prepared, the consistency with paint film is high, water resistance is extremely strong,
The extremely strong advantage of heat resistance cooperates the 4A zeolite solution of silver ion obtained doping under specific preparation method, the use being prepared
Aqueous polyurethane antibiotic paint inside ultrafiltration pond has that water resistance more outstanding is strong, good weatherability, hardness are high, decoration
Property it is strong, without precipitate, strong antibacterial and the advantages of all kinds of chemical attacks can be resisted.
Specific embodiment
With reference to embodiments, the present invention is further described in detail, but not limited to this.
Raw material employed in following embodiments is marketable material unless otherwise specified, and concrete model and producer are as follows
It is shown:
Water-based hydroxyl polyacrylic acid the first resin of dispersion, solid content are 44 ± 5wt%, pH value 8.5, hydroxy radical content value
It is 3.3%；
Water-based hydroxyl polyacrylic acid the second resin of dispersion, solid content 42wt%, pH value 7.7, hydroxy radical content are
2%；
First isocyanate curing agent is the hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate,
NCO content 20.7wt%~21.7wt%, viscosity is 3500 ± 1000mpas, density 1.16g/cm at 23 DEG C3；
Second isocyanate curing agent is the hydrophilic modifying aliphatic polymeric isocyanate based on isoflurane chalcone diisocyanate,
NCO content is 8.9wt%~9.9wt%, non-volatile part content 70 ± 2wt%, and viscosity is 600 ± 200mpas, density at 23 DEG C
For 1.07g/cm3；
The dispersing agent be BYK-190 and BYK-194 any one, Bi Ke chemistry；
The defoaming agent is tego810, Degussa Digao；
The moistening flatting agent is BYK-331, Bi Ke chemistry；
The coalescing agent is dipropylene glycol methyl ether (PM), Dow；
The antifreezing agent is ethylene glycol, Shouguang City's gold space chemical industry；
The pigments and fillers are carbon black MA100, titanium dioxide (TiO2), 1500 mesh of blanc fixe any one, be city
It sells；
The solvent is propylene-glycol diacetate (PGDA), higher boiling environmentally friendly solvent, Dow；
In following embodiments, the 4a zeolite solution of used silver ion doping is prepared with the following method: using
1g/L silver nitrate solution prepares the 4a zeolite solution of 30g/L as solvent, while carrying out high-speed stirred, stirring speed with dispersion machine
Degree is 500r/min, mixing time 5min, until dispersion is completely to get the 4A zeolite solution adulterated to silver ion.
Embodiment
A kind of aqueous polyurethane antibiotic paint for inside ultrafiltration pond of the invention, each embodiment specific implementation are matched
Side such as the following table 1:
Each embodiment of table 1 specific implementation formula
Embodiment 1
In the present embodiment, the aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by the group of following parts by weight
Divide and be prepared: 30 parts of the first resin of water-based hydroxyl polyacrylic acid dispersion, water-based hydroxyl polyacrylic acid the second resin of dispersion
10 parts, 2 parts of BYK-190 dispersing agent, 1 part of tego810 defoaming agent, 2 parts of BYK-331 moistening flatting agent, 3 parts of PM coalescing agent, second
1 part of glycol antifreezing agent, 20 parts of carbon black MA100 pigments and fillers, 10 parts of the 4A zeolite solution of silver ion doping, the first cured with isocyanates
35 parts of agent, 35 parts of the second isocyanate curing agent, 15 parts of PGDA solvent.
In above-described embodiment, the production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, including
Following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
Embodiment 2
In the present embodiment, the aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by the group of following parts by weight
Divide and be prepared: 46 parts of the first resin of water-based hydroxyl polyacrylic acid dispersion, 2.3 parts of BYK-194 dispersing agent, tego810 defoaming
1.3 parts of agent, 2.2 parts of BYK-331 moistening flatting agent, 3.7 parts of PM coalescing agent, 1.1 parts of ethylene glycol antifreeze, titanium dioxide pigments and fillers
22 parts, 17 parts of the 4A zeolite solution of silver ion doping, 47 parts of the first isocyanate curing agent, the second isocyanate curing agent 29
Part, 19 parts of PGDA solvent.
In above-described embodiment, the production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, including
Following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
Embodiment 3
In the present embodiment, the aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by the group of following parts by weight
Divide and be prepared: 37 parts of the first resin of water-based hydroxyl polyacrylic acid dispersion, water-based hydroxyl polyacrylic acid the second resin of dispersion
16 parts, 2.6 parts of BYK-190 dispersing agent, 1.7 parts of tego810 defoaming agent, 3.5 parts of BYK-331 moistening flatting agent, PM coalescing agent
4.2 parts, it is 1.6 parts of ethylene glycol antifreeze, 28 parts of carbon black MA100 pigments and fillers, 23 parts of the 4A zeolite solution of silver ion doping, first different
49 parts of cyanate curing agent, 31 parts of the second isocyanate curing agent, 23 parts of PGDA solvent.
In above-described embodiment, the production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, including
Following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
Embodiment 4
In the present embodiment, the aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by the group of following parts by weight
Divide and be prepared: 42 parts of the first resin of water-based hydroxyl polyacrylic acid dispersion, water-based hydroxyl polyacrylic acid the second resin of dispersion
18 parts, 3 parts of BYK-190 dispersing agent, 2 parts of tego810 defoaming agent, 4 parts of BYK-331 moistening flatting agent, 5 parts of PM coalescing agent, second
2 parts of glycol antifreezing agent, 30 parts of carbon black MA100 pigments and fillers, 30 parts of the 4A zeolite solution of silver ion doping, the first cured with isocyanates
60 parts of agent, 30 parts of the second isocyanate curing agent, 25 parts of PGDA solvent.
In above-described embodiment, the production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, including
Following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
Embodiment 5
In the present embodiment, the aqueous polyurethane antibiotic paint for inside ultrafiltration pond, by the group of following parts by weight
Divide and be prepared: 35 parts of the first resin of water-based hydroxyl polyacrylic acid dispersion, water-based hydroxyl polyacrylic acid the second resin of dispersion
15 parts, 2.4 parts of BYK-190 dispersing agent, 1.5 parts of tego810 defoaming agent, 3 parts of BYK-331 moistening flatting agent, PM coalescing agent 4
Part, 21 parts of the 4A zeolite solution of 1.3 parts of ethylene glycol antifreeze, 26 parts of carbon black MA100 pigments and fillers, silver ion doping, the first isocyanide
47 parts of acid esters curing agent, 33 parts of the second isocyanate curing agent, 21 parts of PGDA solvent.
In above-described embodiment, the production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, including
Following steps:
(1) 4a by the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, silver ion doping boils
Stone solution sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, at the uniform velocity disperses
After complete, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent is added, forms a film and helps
Agent, high speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed
600-800 turns/min, and after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
Comparative example
In order to illustrate beneficial effect possessed by the present invention, the present invention also provides following comparative examples to carry out further
Explanation.
Comparative example 1: the first isocyanate curing agent whole equivalent in embodiment 5 is replaced with into the second cured with isocyanates
Agent, other components are constant.
Comparative example 2: the second isocyanate curing agent whole equivalent in embodiment 5 is replaced with into the first cured with isocyanates
Agent, other components are constant.
Comparative example 3: the 4A zeolite solution whole equivalent that silver ion in embodiment 1 adulterates is replaced with into commercially available silver type zeolite and is resisted
Microbial inoculum, remaining component are constant.
Further, the present invention is also used for inside ultrafiltration pond to described in above-described embodiment 1~5 and comparative example 1~3
Aqueous polyurethane antibiotic paint carried out performance test, specific test method and test result is as follows:
Performance test results list of the table 2 for the aqueous polyurethane antibiotic paint inside ultrafiltration pond
Above-mentioned test result is it is found that (1) two kind of isocyanide ester curing agent mixes according to a certain ratio, with water-based hydroxyl polypropylene
Sour dispersion is used cooperatively, and can greatly improve the acid and alkali-resistance and salt spray resistance of product, and especially antibiotic rate can be up to
99.9%；(2) the 4a zeolite solution for the silver ion doping being prepared using the method for the invention, and it is of the present invention aqueous
Polyurethane antibiotic formulation for coating material is used cooperatively, and can generate synergistic effect, and the anti-microbial property of obtained antibiotic paint can be up to
99.9%.And commercially available silver type zeolite antibacterial agent is used, anti-microbial property is only capable of reaching 90%, and with using the time to increase,
Anti-microbial property can also decline to a great extent.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments, and it is extended from this it is obvious variation or
It changes among still in the invention scope of protection of the claims.
Claims (6)
1. a kind of aqueous polyurethane antibiotic paint for inside ultrafiltration pond, which is characterized in that by the component of following parts by weight
It is prepared: 40-60 parts of water-based hydroxyl polyacrylic acid dispersion, 2-3 parts of dispersing agent, 1-2 parts of defoaming agent, moistening flatting agent 2-4
Part, 10-30 parts of the 4A zeolite solution of 3-5 parts of coalescing agent, 1-2 parts of antifreezing agent, 20-30 parts of pigments and fillers, silver ion doping, isocyanide
70-90 parts of acid esters curing agent, 15-25 parts of solvent.
2. according to claim 1 for the aqueous polyurethane antibiotic paint inside ultrafiltration pond, which is characterized in that the water
Property hydroxyl polyacrylic acid dispersion be the first resin of water-based hydroxyl polyacrylic acid dispersion and water-based hydroxyl polyacrylic acid dispersion
The mixture of second resin, the first resin of the water-based hydroxyl polyacrylic acid dispersion and aqueous poly- hydroxyl polyacrylic acid dispersion
It is (2~3) that second resin, which adds mass ratio: 1；Wherein, the solid content of the first resin of the water-based hydroxyl polyacrylic acid dispersion
For 44 ± 5wt%, pH value 8.5, hydroxy radical content value is 3.3%；The second resin of the water-based hydroxyl polyacrylic acid dispersion
Solid content is 42wt%, pH value 7.7, hydroxy radical content 2%.
3. the aqueous polyurethane antibiotic paint according to claim 1 or claim 2 for inside ultrafiltration pond, which is characterized in that institute
Stating antifreezing agent is ethylene glycol.
4. any aqueous polyurethane antibiotic paint for inside ultrafiltration pond, feature exist according to claim 1~3
In, the 4a zeolite solution of silver ion doping the preparation method comprises the following steps: using 1g/L silver nitrate solution as solvent, preparation 30g/
L 4a zeolite solution, while high-speed stirred, mixing speed 500r/min, mixing time 5min are carried out with dispersion machine, until dividing
It clears entirely to get the 4A zeolite solution adulterated to silver ion.
5. any aqueous polyurethane antibiotic paint for inside ultrafiltration pond, feature exist according to claim 1~4
In the isocyanate curing agent is two kinds of isocyanate curing agent blendings, and the first isocyanate curing agent is based on six methylenes
The hydrophilic aliphatic polyisocyanate of group diisocyanate, NCO content 20.7wt%~21.7wt%, viscosity is at 23 DEG C
3500 ± 1000mpas, density 1.16g/cm3；Second isocyanate curing agent is the parent based on isoflurane chalcone diisocyanate
Water modified aliphatic polyisocyanate, NCO content are 8.9wt%~9.9wt%, non-volatile part content 70 ± 2wt%, at 23 DEG C
Viscosity is 600 ± 200mpas, density 1.07g/cm3；First isocyanate curing agent adds with the second isocyanate curing agent
The mass ratio of dosage is (1-2): 1.
6. any production method for the aqueous polyurethane antibiotic paint inside ultrafiltration pond of Claims 1 to 5, including
Following steps:
(1) the first polyacrylic acid dispersion, dispersing agent, defoaming agent, antifreezing agent, pigments and fillers, the 4a zeolite of silver ion doping is molten
Liquid sequentially adds in stock kettle, and is dispersed with high speed disperser, and revolving speed is about that 800-1000 turns/min, has at the uniform velocity dispersed
Afterwards, concussion is ground to fineness≤20 μm, and uses 200 mesh filter-cloth filterings, as slurry early period to paint.
(2) the second polyacrylic acid dispersion is added in starching early period in step 1, and moistening flatting agent, coalescing agent is added, it is high
Speed dispersion, revolving speed is that 600-800 turns/min, and after 200 mesh filter-cloth filterings, filling is component A.
(3) the first curing agent and the second curing agent, solvent are added in stock kettle, and are at the uniform velocity dispersed with dispersion machine, revolving speed 600-
800 turns/min, after being uniformly dispersed, 200 mesh filter-cloth filterings are filling, as component B.
(4) in use, the mass ratio of the additive amount of component A and component B is (2~4): 1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113122092A (en) * | 2021-04-07 | 2021-07-16 | 广州雷诺丽特塑料有限公司 | Antibacterial coating and preparation method and application thereof |
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