CN108822714A - A kind of water-repellent paint that hydrophobicity is promoted - Google Patents
A kind of water-repellent paint that hydrophobicity is promoted Download PDFInfo
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/482—Mixtures of polyethers containing at least one polyether containing nitrogen
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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Abstract
The present invention relates to technical field of coatings, and in particular to a kind of water-repellent paint that hydrophobicity is promoted.Contain following components in water-repellent paint：Amine terminated polyether, end hydroxy polyether, isocyanates, dioctyl phthalate, chain extender, hydrophobically modified filler, catalyst, hexamethylene, silane coupling agent and auxiliary agent；Wherein, the inorganic filler contained in hydrophobically modified filler is kaolin, talcum powder and precipitated calcium carbonate；Inorganic filler is passed through with the surface treatment of organo silane coupling agent, stearic acid, ethylene glycol and acetic acid modifying agent as main component, so that the hydrophobicity of inorganic filler and being improved with the compatibility of polyether polyols, so as to improve hydrophobic performance, stability of material and the weather resistance of remodeling water-repellent paint.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of water-repellent paint that hydrophobicity is promoted.
Background technique
Water-repellent paint is a kind of one pack system Environmental-protecwaterproof waterproof paint of liquid construction, is using imported polyurethane performed polymer as base
This composition.Solidify after its aerial moisture contact, can substrate surface formed one layer it is firm tough and tensile jointless
Integral waterproofing film.The construction technology of this coating is simple, and for the structure and property to substrate without particular requirement, bond effect is good, Gu
It is lower to change the time.
Polyurethanes waterproof material in the market has two major classes：First is that conventional polyurethanes class water-repellent paint；This kind of material one
As be made of polyurethane and coal tar as raw material.The tar gas toxicity that it is volatilized is big, and does not allow easy-clear.Still in pin
The polyurethane waterproofing coating sold is that pitch is used to replace coal tar as raw material.When using this coating, general use contains first
The organic solvents such as benzene, dimethylbenzene dilute, these solvents also contain toxic；Another kind of is polymer cement-base waterproof coating.It
The lotion synthesized by a variety of waterborne polymerics is formed with the high grade cement mixed with various additives, flexibility and the cement of polymer
Rigidity becames one, so that it is excellent in terms of impermeability is with the strength of materials.Its advantages are easy for construction, comprehensive costs
It is low, short time limit, and asepsis environment-protecting.But since the hydrophobicity of cement base-material in polymer cement fundamental mode water-repellent paint is poor, because
The waterproof performance of this this coating is generally below conventional polyurethanes class water-repellent paint.Further, since having been used in coating inorganic
The compatibility of filler ingredient, this material and organic polymer is poor, and weatherability is relatively low, and the curing time of coating is more
It is long.
Patent publication No. CN105462479A provides a kind of weather-proof self demixing single-component waterproof coating material of environment-friendly type and its system
Preparation Method, aqueous polyurethane emulsion, waterborne polyurethane modified fluorocarbon resin lotion, fungicide, defoaming agent in the water-repellent paint, by
In not using inorganic filler, therefore the stability of the type water-repellent paint is more preferable, but the weatherability of coating is poor, corrosion-resistant, anti-
Ageing properties are insufficient, and the intensity of material is lower, and aging is easy in use process and is fallen off.
Patent publication No. CN104559733A discloses a kind of double-component polyurethane coating, be added in the coating coarse whiting,
The mechanical strength and weather resistance of coating can be improved as inorganic filler in carbon black and talcum powder, but due to inorganic filler and
The compatibility of organic solvent is poor, and the chemical stability of coating is poor, and adhesive property performance is insufficient, due to making for inorganic filler
With the hydrophobicity of coating accordingly reduces.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides the water-repellent paint that a kind of hydrophobicity is promoted, this paintings
Material is added to the inorganic filler of hydrophobically modified in polyurethanes organic polymer, not only improves the intensity of coating, bonding effect
Fruit also improves hydrophobicity, stability of material and the weather resistance of coating.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
The water-repellent paint that a kind of hydrophobicity is promoted contains following components in water-repellent paint according to mass fraction：Amino End Group is poly-
40-50 parts of ether, 20-35 parts of end hydroxy polyether, 15-20 parts of isocyanates, 1-2 parts of dioctyl phthalate, chain extender 2-3
Part, 18-23 parts of hydrophobically modified filler, 1-3 parts of catalyst, 6-8 parts of hexamethylene, 1.3-1.6 parts of silane coupling agent, 2-5 parts of auxiliary agent.
Preferably, according to mass fraction, contain following components in water-repellent paint：42-45 parts of amine terminated polyether, terminal hydroxy group is poly-
35-30 parts of ether, 17-18 parts of isocyanates, 1.4-1.6 parts of dioctyl phthalate, 2.4-2.7 parts of chain extender, hydrophobically modified
21-22 parts of filler, 1.8-2.4 parts of catalyst, 7.4-7.8 parts of hexamethylene, 1.4-1.5 parts of coupling agent, 3-4 parts of auxiliary agent.
It is further preferred that containing following components in water-repellent paint according to mass fraction：43 parts of amine terminated polyether, hold hydroxyl
It 32 parts of base polyethers, 18 parts of isocyanates, 1.6 parts of dioctyl phthalate, 2.6 parts of chain extender, 22 parts of hydrophobically modified filler, urges
2 parts of agent, 7.6 parts of hexamethylene, 1.4 parts of coupling agent, 3.5 parts of auxiliary agent.
Preferably, the inorganic filler contained in the hydrophobically modified filler is kaolin, talcum powder and precipitated calcium carbonate.
In the present invention, the preparation method of hydrophobically modified filler is, according to mass fraction, to prepare following raw material：Kaolin 45
Part, 32 parts of talcum powder, 18 parts of precipitated calcium carbonate, 3 parts of organo silane coupling agent, 4 parts of stearic acid, 17 parts of ethylene glycol, 6 parts of acetic acid,
Organo silane coupling agent and stearic acid are mixed, the in the mixed solvent of stearic acid and ethylene glycol is then added to, is sufficiently stirred
It is even, obtain modifying agent；Kaolin, talcum powder and precipitated calcium carbonate are added in batch mixer, with the revolving speed of 200-250r/min
It is mixed, on the mixed fillers being injected in batch mixer after being atomized modifying agent using atomizer in whipping process, mixing is stirred
The time is mixed as 20-30min, after mixing, freeze-day with constant temperature processing is carried out with 60-65 DEG C of temperature, it is completely dry to surface of material
After dry, material is sent in grinder and is smashed and ground, obtains required hydrophobically modified filler.
Wherein, the material fineness after hydrophobically modified filling material grinding is 2-5 μm.
Preferably, the molecular weight of amine terminated polyether is 2000-3000；The molecular weight of section hydroxy polyethers is 1000-1500.
Preferably, chain extender is the grade ratio mixture of hydrazine hydrate and bishydroxymethyl propionic acid；Catalyst is stannous octoate, two
Two fourth tin of lauric acid or isooctyl acid lead.
Preferably, auxiliary agent includes levelling agent, anti-settling agent, defoaming agent and antioxidant, and four mass ratio is 1:1:2:3.
The preparation method of water-repellent paint provided by the invention includes the following steps：
According to mass fraction, amine terminated polyether and end hydroxy polyether are added in reaction kettle, with 90-100 DEG C of temperature
Vacuum dehydration processing, is then down to 30-35 DEG C for the temperature in reaction kettle, and isocyanates, hexamethylene, neighbour are put into reaction kettle
Dioctyl phthalate, chain extender and catalyst are stirred, and are warming up to 60-65 DEG C, and insulated and stirred reacts 3-3.5h, then
It after temperature of charge in reaction kettle is down to 30-35 DEG C, puts into ultrasonic disperse machine, and is added into ultrasonic disperse machine hydrophobic
Modified filler, silane coupling agent and auxiliary agent, ultrasonic disperse handle 15-20min, obtain required water-repellent paint.
The present invention has following beneficial effect：
The type water-repellent paint is using polyurethane polymer as coating matrix, and wherein polyurethane polymer is poly- with Amino End Group
Ether and end hydroxy polyether are obtained after reacting after mixing in specific proportions with isocyanate polymeric, specifically hold in this polymer
Base makes the compatibility of remaining modified inorganic filler more preferable, to improve the stability and weather resistance of coating.
Inorganic filler used in the type water-repellent paint includes kaolin, talcum powder and precipitated calcium carbonate, and inorganic filler exists
Pass through modification using preceding, effect of the inorganic filler due to surface special groups after modification, the hydrophobic performance of material
It is significantly improved, and improves the interface compatibility of filler and polyether polyols.
Polyether polyols, inorganic filler, dioctyl phthalate in the type water-repellent paint and between hexamethylene
Synergistic effect further improves the curing time of coating, so that the type coating has good quick-drying performance.
It include levelling agent, anti-settling agent and defoaming agent in auxiliary agent in coating, the film forming effect of coating can be improved in these auxiliary agents
Fruit, so that the waterproof coating stable and uniform formed, to improve the intensity of coating；Coating can be improved in antioxidant in coating
Anti-aging property and weather resistance extend the service life of coating.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
The water-repellent paint that a kind of hydrophobicity is promoted contains following components in water-repellent paint according to mass fraction：Amino End Group is poly-
40 parts of ether, 20 parts of end hydroxy polyether, 15 parts of isocyanates, 1 part of dioctyl phthalate, 2 parts of chain extender, hydrophobically modified filler
18 parts, 1 part of catalyst, 6 parts of hexamethylene, 1.3 parts of silane coupling agent, 2 parts of auxiliary agent.
The inorganic filler contained in hydrophobically modified filler is kaolin, talcum powder and precipitated calcium carbonate.
In the present invention, the preparation method of hydrophobically modified filler is, according to mass fraction, to prepare following raw material：Kaolin 45
Part, 32 parts of talcum powder, 18 parts of precipitated calcium carbonate, 3 parts of organo silane coupling agent, 4 parts of stearic acid, 17 parts of ethylene glycol, 6 parts of acetic acid,
Organo silane coupling agent and stearic acid are mixed, the in the mixed solvent of stearic acid and ethylene glycol is then added to, is sufficiently stirred
It is even, obtain modifying agent；Kaolin, talcum powder and precipitated calcium carbonate are added in batch mixer, mixed with the revolving speed of 200r/min
Stirring, on the mixed fillers being injected in batch mixer after being atomized modifying agent using atomizer in whipping process, when mixing
Between be 20min, after mixing, freeze-day with constant temperature processing is carried out with 60 DEG C of temperature, after surface of material is completely dried, by material
It is sent in grinder and smashes and grinds, obtain required hydrophobically modified filler.Material fineness after hydrophobically modified filling material grinding is 2-5
μm。
Wherein, the molecular weight of amine terminated polyether is 2000-3000；The molecular weight of section hydroxy polyethers is 1000-1500.
Chain extender is the grade ratio mixture of hydrazine hydrate and bishydroxymethyl propionic acid；Catalyst is stannous octoate.
Auxiliary agent includes levelling agent, anti-settling agent, defoaming agent and antioxidant, and four mass ratio is 1:1:2:3.
The preparation method of water-repellent paint provided in this embodiment includes the following steps：
According to mass fraction, amine terminated polyether and end hydroxy polyether are added in reaction kettle, with 90 DEG C of Temperature Vacuum
Then temperature in reaction kettle is down to 30 DEG C by dehydration, isocyanates, hexamethylene, O-phthalic are put into reaction kettle
Dioctyl phthalate, chain extender and catalyst are stirred, and are warming up to 60 DEG C, and insulated and stirred reacts 3h, then will be in reaction kettle
It after temperature of charge is down to 30 DEG C, puts into ultrasonic disperse machine, and hydrophobically modified filler, silane idol is added into ultrasonic disperse machine
Join agent and auxiliary agent, ultrasonic disperse handles 15min, obtains required water-repellent paint.
Embodiment 2
The water-repellent paint that a kind of hydrophobicity is promoted contains following components in water-repellent paint according to mass fraction：Amino End Group is poly-
50 parts of ether, 35 parts of end hydroxy polyether, 20 parts of isocyanates, 2 parts of dioctyl phthalate, 3 parts of chain extender, hydrophobically modified filler
23 parts, 3 parts of catalyst, 8 parts of hexamethylene, 1.6 parts of silane coupling agent, 5 parts of auxiliary agent.
The inorganic filler contained in hydrophobically modified filler is kaolin, talcum powder and precipitated calcium carbonate.
In the present invention, the preparation method of hydrophobically modified filler is, according to mass fraction, to prepare following raw material：Kaolin 45
Part, 32 parts of talcum powder, 18 parts of precipitated calcium carbonate, 3 parts of organo silane coupling agent, 4 parts of stearic acid, 17 parts of ethylene glycol, 6 parts of acetic acid,
Organo silane coupling agent and stearic acid are mixed, the in the mixed solvent of stearic acid and ethylene glycol is then added to, is sufficiently stirred
It is even, obtain modifying agent；Kaolin, talcum powder and precipitated calcium carbonate are added in batch mixer, mixed with the revolving speed of 250r/min
Stirring, on the mixed fillers being injected in batch mixer after being atomized modifying agent using atomizer in whipping process, when mixing
Between be 30min, after mixing, freeze-day with constant temperature processing is carried out with 65 DEG C of temperature, after surface of material is completely dried, by material
It is sent in grinder and smashes and grinds, obtain required hydrophobically modified filler.Material fineness after hydrophobically modified filling material grinding is 2-5
μm。
Wherein, the molecular weight of amine terminated polyether is 2000-3000；The molecular weight of section hydroxy polyethers is 1000-1500.
Chain extender is the grade ratio mixture of hydrazine hydrate and bishydroxymethyl propionic acid；Catalyst is dibutyl tin dilaurate.
Auxiliary agent includes levelling agent, anti-settling agent, defoaming agent and antioxidant, and four mass ratio is 1:1:2:3.
The preparation method of water-repellent paint provided in this embodiment includes the following steps：
According to mass fraction, amine terminated polyether and end hydroxy polyether are added in reaction kettle, with 100 DEG C of Temperature Vacuum
Then temperature in reaction kettle is down to 35 DEG C by dehydration, isocyanates, hexamethylene, O-phthalic are put into reaction kettle
Dioctyl phthalate, chain extender and catalyst are stirred, and are warming up to 65 DEG C, and insulated and stirred reacts 3.5h, then will be in reaction kettle
Temperature of charge be down to 35 DEG C after, put into ultrasonic disperse machine, and into ultrasonic disperse machine be added hydrophobically modified filler, silane
Coupling agent and auxiliary agent, ultrasonic disperse handle 20min, obtain required water-repellent paint.
Embodiment 3
The water-repellent paint that a kind of hydrophobicity is promoted contains following components in water-repellent paint according to mass fraction：Amino End Group is poly-
45 parts of ether, 30 parts of end hydroxy polyether, 18 parts of isocyanates, 1.5 parts of dioctyl phthalate, 2.5 parts of chain extender, hydrophobically modified
20 parts of filler, 2 parts of catalyst, 7 parts of hexamethylene, 1.5 parts of silane coupling agent, 4 parts of auxiliary agent.
The inorganic filler contained in hydrophobically modified filler is kaolin, talcum powder and precipitated calcium carbonate.
In the present invention, the preparation method of hydrophobically modified filler is, according to mass fraction, to prepare following raw material：Kaolin 45
Part, 32 parts of talcum powder, 18 parts of precipitated calcium carbonate, 3 parts of organo silane coupling agent, 4 parts of stearic acid, 17 parts of ethylene glycol, 6 parts of acetic acid,
Organo silane coupling agent and stearic acid are mixed, the in the mixed solvent of stearic acid and ethylene glycol is then added to, is sufficiently stirred
It is even, obtain modifying agent；Kaolin, talcum powder and precipitated calcium carbonate are added in batch mixer, mixed with the revolving speed of 230r/min
Stirring, on the mixed fillers being injected in batch mixer after being atomized modifying agent using atomizer in whipping process, when mixing
Between be 25min, after mixing, freeze-day with constant temperature processing is carried out with 63 DEG C of temperature, after surface of material is completely dried, by material
It is sent in grinder and smashes and grinds, obtain required hydrophobically modified filler.Material fineness after hydrophobically modified filling material grinding is 2-5
μm。
Wherein, the molecular weight of amine terminated polyether is 2000-3000；The molecular weight of section hydroxy polyethers is 1000-1500.
Chain extender is the grade ratio mixture of hydrazine hydrate and bishydroxymethyl propionic acid；Catalyst is isooctyl acid lead.
Auxiliary agent includes levelling agent, anti-settling agent, defoaming agent and antioxidant, and four mass ratio is 1:1:2:3.
The preparation method of water-repellent paint provided in this embodiment includes the following steps：
According to mass fraction, amine terminated polyether and end hydroxy polyether are added in reaction kettle, with 95 DEG C of Temperature Vacuum
Then temperature in reaction kettle is down to 33 DEG C by dehydration, isocyanates, hexamethylene, O-phthalic are put into reaction kettle
Dioctyl phthalate, chain extender and catalyst are stirred, and are warming up to 62 DEG C, and insulated and stirred reacts 3.3h, then will be in reaction kettle
Temperature of charge be down to 34 DEG C after, put into ultrasonic disperse machine, and into ultrasonic disperse machine be added hydrophobically modified filler, silane
Coupling agent and auxiliary agent, ultrasonic disperse handle 17min, obtain required water-repellent paint.
Performance test
According to GB/T19250-2013《Polyurethane water-proof paint》Test method in technical standard, to the present embodiment waterproof
The performances such as the drying time of coating, tensile strength, elongation at break, impermeability and adhesion strength are tested, and are obtained as follows
Test result：
Table 1：The performance test results of the present embodiment water-repellent paint：
The above experimental data discovery is analyzed, the water-repellent paint of the present embodiment is in drying time, tensile strength, elongation at break
In the performance indicators such as adhesion strength, the requirement of national standard can be met and exceeded, performance is very prominent, wherein the present embodiment
In water-repellent paint impermeability performance it is especially prominent, material is tested with the experiment parameter of remote superstate standard requirements,
Good waterproof performance can be still kept, this hydrophobicity for embodying water-repellent paint in the present invention is higher than general waterproof and applies
Material.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. the water-repellent paint that a kind of hydrophobicity is promoted, it is characterised in that：According to mass fraction, containing following in the water-repellent paint
Component：40-50 parts of amine terminated polyether, 20-35 parts of end hydroxy polyether, 15-20 parts of isocyanates, dioctyl phthalate 1-2
Part, 2-3 parts of chain extender, 18-23 parts of hydrophobically modified filler, 1-3 parts of catalyst, 6-8 parts of hexamethylene, silane coupling agent 1.3-1.6
Part, 2-5 parts of auxiliary agent.
2. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, it is characterised in that：According to mass fraction, institute
It states and contains following components in water-repellent paint：42-45 parts of amine terminated polyether, 35-30 parts of end hydroxy polyether, 17-18 parts of isocyanates,
1.4-1.6 parts of dioctyl phthalate, 2.4-2.7 parts of chain extender, 21-22 parts of hydrophobically modified filler, catalyst 1.8-2.4
Part, 7.4-7.8 parts of hexamethylene, 1.4-1.5 parts of coupling agent, 3-4 parts of auxiliary agent.
3. the water-repellent paint that a kind of hydrophobicity according to claim 2 is promoted, it is characterised in that：According to mass fraction, institute
It states and contains following components in water-repellent paint：43 parts of amine terminated polyether, 32 parts of end hydroxy polyether, 18 parts of isocyanates, O-phthalic
1.6 parts of dioctyl phthalate, 2.6 parts of chain extender, 22 parts of hydrophobically modified filler, 2 parts of catalyst, 7.6 parts of hexamethylene, 1.4 parts of coupling agent,
3.5 parts of auxiliary agent.
4. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, it is characterised in that：The hydrophobically modified is filled out
The inorganic filler contained in material is kaolin, talcum powder and precipitated calcium carbonate.
5. the water-repellent paint that a kind of hydrophobicity according to claim 4 is promoted, it is characterised in that：The hydrophobically modified filler
Preparation method be, according to mass fraction, to prepare following raw material：45 parts of kaolin, 32 parts of talcum powder, 18 parts of precipitated calcium carbonate,
3 parts of organo silane coupling agent, 4 parts of stearic acid, 17 parts of ethylene glycol, 6 parts of acetic acid, organo silane coupling agent and stearic acid are mixed,
It is then added to the in the mixed solvent of stearic acid and ethylene glycol, is stirred, modifying agent is obtained；By kaolin, talcum powder
It is added in batch mixer with precipitated calcium carbonate, is mixed with the revolving speed of 200-250r/min, atomizer is used in whipping process
It is injected to after modifying agent is atomized on the mixed fillers in batch mixer, mixing time 20-30min, after mixing, with
60-65 DEG C of temperature carries out freeze-day with constant temperature processing, after surface of material is completely dried, material is sent to crush in grinder and is ground
Mill, obtains required hydrophobically modified filler.
6. the water-repellent paint that a kind of hydrophobicity according to claim 5 is promoted, it is characterised in that：The hydrophobically modified filler
Material fineness after grinding is 2-5 μm.
7. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, it is characterised in that：The amine terminated polyether
Molecular weight is 2000-3000；The molecular weight of section hydroxy polyethers is 1000-1500.
8. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, it is characterised in that：The chain extender is hydration
The grade ratio mixture of hydrazine and bishydroxymethyl propionic acid；Catalyst is stannous octoate, dibutyl tin dilaurate or isooctyl acid lead.
9. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, which is characterized in that the auxiliary agent includes levelling
Agent, anti-settling agent, defoaming agent and antioxidant, four mass ratio are 1:1:2:3.
10. the water-repellent paint that a kind of hydrophobicity according to claim 1 is promoted, it is characterised in that：The water-repellent paint
Preparation method includes the following steps：
According to mass fraction, amine terminated polyether and end hydroxy polyether are added in reaction kettle, with 90-100 DEG C of Temperature Vacuum
Then temperature in reaction kettle is down to 30-35 DEG C by dehydration, isocyanates, hexamethylene, adjacent benzene two are put into reaction kettle
Formic acid dioctyl ester, chain extender and catalyst are stirred, and are warming up to 60-65 DEG C, and insulated and stirred reacts 3-3.5h, then will be anti-
It after answering the temperature of charge in kettle to be down to 30-35 DEG C, puts into ultrasonic disperse machine, and hydrophobically modified is added into ultrasonic disperse machine
Filler, silane coupling agent and auxiliary agent, ultrasonic disperse handle 15-20min, obtain required water-repellent paint.
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| CN110180769A (en) * | 2019-05-24 | 2019-08-30 | 南京林业大学 | A kind of weatherability enhanced processing method of historic gardens armored concrete plastic stone rockery |
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| CN110180769A (en) * | 2019-05-24 | 2019-08-30 | 南京林业大学 | A kind of weatherability enhanced processing method of historic gardens armored concrete plastic stone rockery |
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| CN110272681A (en) * | 2019-06-03 | 2019-09-24 | 成都市宏智达科技有限公司 | A kind of quick-drying roofing spraying water-repellent paint |
| CN111019082A (en) * | 2019-12-16 | 2020-04-17 | 东南大学 | Nonionic photo-curing polyurethane aqueous dispersion resin composition with excellent compatibility and preparation method and application thereof |
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| CN116024846A (en) * | 2022-12-02 | 2023-04-28 | 华邦古楼新材料有限公司 | Preparation method of natural-color high-stiffness straw base paper |
| CN116445081A (en) * | 2023-05-12 | 2023-07-18 | 合肥中通防水工程有限公司 | High-viscosity anti-slip rubber asphalt waterproof coating and preparation method thereof |
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