CN104745071A - Polyurethane waterproof flame-retardant paint and preparation method thereof - Google Patents
Polyurethane waterproof flame-retardant paint and preparation method thereof Download PDFInfo
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- CN104745071A CN104745071A CN201510143492.4A CN201510143492A CN104745071A CN 104745071 A CN104745071 A CN 104745071A CN 201510143492 A CN201510143492 A CN 201510143492A CN 104745071 A CN104745071 A CN 104745071A
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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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
- C09D7/20—Diluents or solvents
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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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a polyurethane waterproof flame-retardant paint and a preparation method thereof. The paint comprises polyurethane prepolymers, diacetone acryloamide, buty stearate, titanate coupling agent TMC-311 and titanium pigment. The paint further comprises polydimethyl siloxane, white carbon black, mixed solvent and flame-retardant materials. The preparation method comprises the following steps: dissolving the diacetone acrylamide by ethanol of which the volume concentration is 65-80%, wherein the adding amount of the ethanol is 1.5 kilograms in per kilogram of diacetone acrylamide on the basis of weight; mixing the dissolved diacetone acrylamide with the polyurethane prepolymers in a reaction kettle, wherein the reaction temperature is 75-119 DEG C and the reaction time is 1.2-1.5 hours; adding the titanate coupling agent TMC-311 into the mixture and further reacting for 3-6 hours; then adding buty stearate, the rutile-type titanium pigment, polydimethyl siloxane, the flame-retardant materials, the white carbon black and the mixed solvent into the mixture and uniformly mixing, so that the polyurethane waterproof flame-retardant paint product is obtained. The paint prepared by the preparation method is good in waterproof and flame-retardant effects, friendly to the environment and not easy to age.
Description
Technical field
The present invention relates to a kind of anti-flaming dope, particularly relate to a kind of polyurethane water-proof anti-flaming dope and preparation method thereof.
Background technology
Along with the development of construction industry, the demand of coating grows with each passing day.Coating is a kind of material, and this material can be coated in article surface by different construction technologies, forms adhere well, has some strength, continuous print solid film, and the film common name film formed like this, also known as paint film or coating.Object is exposed among air; be subject to the erosion of oxygen, moisture etc.; easily cause the breakoff phenomenons such as corrosion of metal, foxy, cement weathering; coating is coated with at article surface; form layer protecting film; can stop or postpone generation and the development of these breakoff phenomenons, the prolongs life in work-ing life of various material can be made to extend.
Polyurethane coating is a kind of important building coating, also can be used as industrial coating, it is a kind of type material just grown up in the second half in 20th century, because its appearance of film is graceful, have good ornamental, and because of its good snappiness, shock-resistance, erosion resistance, the lower temperature resistance of chemical-resistant and excellence and wear resistance, hardness is large, the features such as snappiness, be widely used in car and boat, aviation, electronics, building, bridge, lathe, in the decoration in the field such as woodenware and indoor decoration and protection, simultaneously also a large amount of for petrochemical equipment, pipeline, maritime facilities, the anti-corrosion protection of the industry such as heavy-duty machinery and decoration.At present in buildings waterproof field, solvent borne polyurethane coating (WPU) Application comparison is extensive, but the increasing of dynamics along with environmental protection, coating certainly will to solvent-free, Water-borne modification future development.Solvent borne polyurethane coating is owing to introducing hydrophilic group, and the water tolerance of coating is not good, cannot meet the demand of building water-proof paint, so can be improved by modification and improve respective performances.The flame retardant properties of polyurethane coating is also very poor, when presence of fire, can not play good fire retardation, can not suppress spreading of the intensity of a fire, and polyurethane(s) also has combustion-supporting effect.Therefore, there is very large defect in polyurethane coating in fire preventing.And if the polyurethane coating produced has anti-flaming function, just effectively can stop when fire occurs, delay or stop flame transmission, reach fire-retardant effect, effectively reduce the loss of human consumer's lives and properties.Such as, and for improving the performance such as water tolerance, flame retardant resistance of polyurethane coating, current open source literature reports many method of modifying,
1, Chinese patent, title: a kind of organic silicon modified aqueous polyurethane coating and preparation method thereof, Application Number (patent): CN201310396330.2 applies for (patent right) people: Yancheng Changhua Outdoor Articles Co., Ltd., summary: a kind of organic silicon modified aqueous polyurethane and preparation method thereof, particularly a kind of main chain contains organosilyl aqueous polyurethane coating and preparation method thereof.This coating raw material component and content are: polyisocyanates 30 ~ 40; Polyether glycol 30 ~ 40; Hydrophilic chain extender 3 ~ 10; Chainextender 2 ~ 10; Linking agent 1 ~ 3; Neutralizing agent 3 ~ 10.Preparation method comprises the steps such as prepolymer synthesis, prepolymer neutralization, chain extension and emulsification.The organic silicon modified aqueous polyurethane coating of gained of the present invention introduces siloxane bond (-Si-O-Si-) on its molecular backbone chain, and the bond distance comparing carbon-carbon bond (-C-C-) due to siloxane bond is large many, and the kindliness of chain is improved greatly; Meanwhile, polyether glycol used is soft segment; Can be good at the kindliness improving urethane, significantly reduce the modulus of urethane; Huge application prospect is had in textiles, leather, building and some special industry.
2, Chinese patent, title: waterborne flame retardant urethane resin and preparation method's Application Number (patent): CN201110119112.5 apply for (patent right) people: Dandong Hengyue New Material Co. Ltd. makes a summary: a kind of waterborne flame retardant urethane resin and preparation method, it is a kind of waterborne polyurethane resin of brominated flame retarding polyether, and solid content is 20 ~ 40%.Preparation method, by preparing the base polyurethane prepolymer for use as A of E. D rings, preparing the urethane B of the blocked isocyanate of E. D rings, carries out emulsification chain extending reaction above-mentioned performed polymer A and urethane B, obtained waterborne flame retardant urethane resin.It has good flame retardant properties and washing fastness, can directly as the flame-retardant coatings glue of fabric etc., and anti-flaming dope uses.
3, Chinese patent, title: environment-friendly aqueous nanometer fireproof flame-retardant coating and preparation method's Application Number (patent): CN200710027403.5 apply for (patent right) people: Sunda Chemical Tech Co., Ltd., Zhongshan City makes a summary: the present invention is a kind of environment-friendly aqueous nanometer fireproof flame-retardant coating and preparation method, belongs to chemical industry fireproof flame-retardant coating production.It is by coming with two kinds of fire retardants and water-base resin, ammonium polyphosphate, trimeric cyanamide, carbon forming agent, nanometer face, filler, the anti-flaming dope that micron face, filler and other additive compound obtain.It does not conform to organic solvent and halogen flame, and VOC content is very low, and fire resistance is excellent, and physicochemical property is excellent.It composed as follows: water-base resin 10 ~ 90%, phyllosilicate nano fire retardant l ~ 50% of phosphorous, nitrogen organic intercalation, nano-magnesium hydrate fire retardant l ~ 50% of polymer overmold, ammonium polyphosphate l ~ 30%, trimeric cyanamide l ~ 20%, carbon forming agent l ~ 30%, nanometer face, filler 0.1 ~ 30%, micron filler 0.1 ~ 60%, dispersion agent 0.1 ~ 10%, stablizer 0.1 ~ 10%, water 0.1 ~ 50%, micron pigment is appropriate.It is first by water-base resin, nano-meter flame retardants, ammonium polyphosphate, trimeric cyanamide, carbon forming agent, nanometer face, filler, and it is even that dispersion agent and stablizer drop into dispersed with stirring in planet stirring still; Mixture after discharging adds a micron face, filler, water, dispersion agent and stablizer again and to be uniformly dispersed in high speed dispersor acquisition finished product.
But prepare a kind of tool and have fire-retardant, lightweight, waterproof, environmental protection, not easily aging, long-lasting coating simultaneously, also not very proven technique, therefore at present people also in water-borne coatings also in continuous research trial.
Summary of the invention
Object of the present invention provides a kind of polyurethane water-proof anti-flaming dope and preparation method thereof, and the coating prepared according to this preparation method has good water proof fire retardant effect, and environmental protection, not easily aging, cohesive force is strong.
The present invention is achieved in that
Polyurethane water-proof anti-flaming dope, make the raw material that this coating comprises following parts by weight:
Base polyurethane prepolymer for use as 45 ~ 55 parts;
Diacetone-acryloamide(DAA) 2-3 part;
Butyl stearate 4 ~ 6 parts;
Titanate coupling agent TMC-311 0.7 ~ 1.2 part;
Titanium dioxide 15 ~ 22 parts;
Defoamer 0.2 ~ 0.4 part;
White carbon black 7 ~ 12 parts;
Mixed solvent 13 ~ 17 parts;
Fire retardant material 5-10 part;
Described base polyurethane prepolymer for use as is the performed polymer with NCO end group, and molecular weight is between 10000-4000;
Described mixed solvent is propylene glycol monomethyl ether and water, and part by weight is 2:8;
Described fire retardant material is the three kinds or more in antimonous oxide, nano-zinc borate, xylenylphosphate, melamine.
Described defoamer is polydimethylsiloxane.
Described titanium dioxide is rutile titanium dioxide, because its specific refractory power of rutile titanium dioxide is 2.71, by adding titanium dioxide (rutile-type) material, can strengthen refraction and the scattering of light.Therefore, there is preferably reflection and heat-proof quality, also there is good light covering effect, thus reflect sun near-infrared band, improve solar heat radiation reflection, reduce solar heat and absorb, do not allow the sun in the accumulative intensification of body surface.
Polyurethane water-proof anti-flaming dope of the present invention, its preparation method comprises the following steps:
Per kilogram diacetone-acryloamide(DAA) adds the dissolve with ethanol of the volumetric concentration 65 ~ 80% of 1.5 kilograms by weight, then mix with base polyurethane prepolymer for use as in a kettle., temperature of reaction 75 ~ 119 DEG C, adds titanate coupling agent TMC-311 after 1.2 ~ 1.5 hours reaction times; Continue reaction 3 ~ 6 hours, then add butyl stearate, Rutile type Titanium Dioxide, polydimethylsiloxane, fire retardant material, white carbon black and mixed solvent, mix and can obtain polyurethane water-proof anti-flaming dope product.。
Polyurethane water-proof anti-flaming dope of the present invention, its raw material also comprises: one or more in flow agent, antifreezing agent and anti-settling agent, and parts by weight are 3 ~ 6; Described flow agent is cellulose acetate butyrate; Described antifreezing agent is phenylcarbinol; Described anti-settling agent is polyolefine ester.
Polyurethane water-proof anti-flaming dope of the present invention, can also add colorant further, provides the coating that wall color is in riotous profusion.
Base polyurethane prepolymer for use as of the present invention is that be polymerized, with the performed polymer of NCO end group, molecular weight is between 10000-4000, and it has good physicals with isocyanic ester, polyethers for main raw material, and cohesive force is strong, normal temperature moisture curing.
Diacetone-acryloamide(DAA) of the present invention is white or micro-yellow plate crystal, colourless after melting.Fusing point is 57 ~ 58 DEG C, and water-soluble, the organic solvent such as methyl alcohol, methyl chloride, benzene, acetonitrile, ethanol, acetone, tetrahydrofuran (THF), ethyl acetate, vinylbenzene, n-hexyl alcohol, is insoluble to sherwood oil (30 ~ 60 DEG C).Diacetone-acryloamide(DAA) has acid amides and the ketone of two kinds of reactive group: N-replacements, very easily with other ethene and monomer copolymerization, thus ketone carbonyl is introduced in polymkeric substance, utilize the chemical property of ketone carbonyl, the reactions such as polymkeric substance generation cross-linked graft can be made, be widely used in, in coating, playing crosslinked action.
Butyl stearate of the present invention is colourless or pale yellow oily liquid body, micro-tool fatty taste, and be a kind of softening agent, its plasticizing efficiency is high, and volatility is little, when butyl stearate is used for coating, can improve the glossiness of paint film, water tolerance and scratch-resistant.
Titanate coupling agent TMC-311 of the present invention are for coating industry, the mineral fillers such as white carbon black can be improved disperse in the polymer, there is result of prevention, the amount of filler in coating can be increased, the resistance to impact shock of matrix material, mobility can be improved, the waterproof of coating, fire prevention, antiseptic power can be increased; The titanate coupling agent with pyrophosphoryl oxygen base has fire-retardant, antirust, and strengthens bonding performance; Add titanate coupling agent TMC-311 and can also increase paint filler amount preparing in polyurethane coating process, pigment-dispersing can be made to significantly improve, the grinding distribution time can be shortened, make combinations color and lustre bright-coloured, can prevent growing dim, paint film intensity is improved, lovely luster, also has and urges dry characteristic, can also reduce storing temperature and shorten baking time to baking finish.
White carbon black of the present invention is a kind of white rouge (S
io
2 . nH
2o), the specific surface area of white carbon black is large, and dispersion force is very strong, can form stable colloid after absorbing moisture in coating, and white carbon black can also play the effect of thickening material except being used as filler.
Mixed solvent of the present invention is the mixture of propylene glycol monomethyl ether and water, propylene glycol monomethyl ether has hydroxyl again due to ether existing in its molecular structure, thus its solubility property is very excellent, is used for the industry such as coating, ink, printing and dyeing, agricultural chemicals, Mierocrystalline cellulose, acrylate as solvent, dispersion agent or thinner.Also can be used as fuel antifreezing agent, clean-out system, extraction agent, non-ferrous metal ore agent etc.Propylene glycol monomethyl ether adds the effect can playing film coalescence aid in paint making process.
Polyurethane water-proof anti-flaming dope of the present invention, can be coated with at the metope of common wall, grain depot, steel framed structure, hull or petroleum storage tank the application be covered with.
The invention has the beneficial effects as follows:
1, the polyurethane water-proof anti-flaming dope film forming matter that the present invention produces owing to adding diacetone-acryloamide(DAA) in base polyurethane prepolymer for use as, butyl stearate, titanate coupling agent TMC-311, after the material such as rutile titanium dioxide and mixed solvent, good chemically crosslinked effect can be played, to polyurethane coating, there is good modifying function, make the film of formation closely knit, waterproof layer is complete, leakless, free of pinholes, water vapor permeation coefficient is little, there is water-proof function, film has good snappiness, strong adaptability basic unit being stretched or ftractures, pull resistance intensity is high, the coating water-proof performance prepared is improved, and extend the coating life-span.
2, the three kinds or more in the fire retardant material antimonous oxide added, nano-zinc borate, xylenylphosphate, melamine; fire retardant material flame retardant effect used is good; after antimonous oxide or nano-zinc borate brushing, film affects the inherent color of object; brushing is on inorganic material matrix; inierpeneirating network structure can be formed with body surface; sticking power is good; there is the provide protection of certain heat insulation, anti-oxidation, anticorrosion, fire-retardant fireproof; extend the work-ing life of matrix, energy-conserving and environment-protective.Make an addition in polymer formulators, have fire-retardant, synergistic is fire-retardant or press down the mineral compound of hood.And weisspiessglanz, nano-zinc borate and xylenylphosphate or melamine with the use of time flame retardant effect more can significantly improve, fire retardant material is joined in coating, the flame retardant properties of coating can be improved, when presence of fire, coating can effectively slow down propagation of flame velocity of propagation, can stop burning within a certain period of time.
3, polyurethane water-proof anti-flaming dope of the present invention is applicable to common wall, the metope of grain depot, steel framed structure, hull, petroleum storage tank, and according to finishing requirements, can carry out selecting of color; Use water as solvent, cost is low, economic and practical, and construction is simple; The coating prepared has good water proof fire retardant effect, and environmental protection, not easily aging, cohesive force is strong.
Embodiment
Embodiment 1
First by weight by base polyurethane prepolymer for use as 45 parts; Diacetone-acryloamide(DAA) 2 parts; Butyl stearate 4 parts; Titanate coupling agent TMC-3110.7 part; Rutile type Titanium Dioxide 15 parts; Polydimethylsiloxane 0.2 part; White carbon black 7 parts; Mixed solvent (propylene glycol monomethyl ether and water, part by weight is 2:8) 13 parts; Fire retardant material (the 1:1:1 preparation by weight proportion of antimonous oxide, nano-zinc borate and xylenylphosphate) 5 parts; Flow agent cellulose acetate butyrate parts by weight are 3 parts and get the raw materials ready.
Production method, per kilogram diacetone-acryloamide(DAA) adds the dissolve with ethanol of the volumetric concentration 65 ~ 80% of 1.5 kilograms by weight, then mix with base polyurethane prepolymer for use as in a kettle., temperature of reaction 75 DEG C, adds titanate coupling agent TMC-311 after 1.2 hours reaction times; Continue reaction 3 hours, then add butyl stearate, Rutile type Titanium Dioxide, polydimethylsiloxane, fire retardant material, white carbon black, flow agent and mixed solvent, mix and can obtain polyurethane water-proof anti-flaming dope product.
Embodiment 2
First by weight by base polyurethane prepolymer for use as 50 parts; Diacetone-acryloamide(DAA) 2.5 parts; Butyl stearate 5 parts; Titanate coupling agent TMC-3111.0 part; Rutile type Titanium Dioxide 20 parts; Polydimethylsiloxane 0.3 part; White carbon black 10 parts; Mixed solvent (propylene glycol monomethyl ether and water, part by weight is 2:8) 15 parts; Fire retardant material (the 1:1:1 preparation by weight proportion of antimonous oxide, nano-zinc borate, melamine) 9 parts; Antifreezing agent phenylcarbinol 5 parts, gets the raw materials ready.
Production method, per kilogram diacetone-acryloamide(DAA) adds the dissolve with ethanol of the volumetric concentration 65 ~ 80% of 1.5 kilograms by weight, then mix with base polyurethane prepolymer for use as in a kettle., temperature of reaction 95 DEG C, adds titanate coupling agent TMC-311 after 1.3 hours reaction times; Continue reaction 4 hours, then add butyl stearate, Rutile type Titanium Dioxide, polydimethylsiloxane, fire retardant material, white carbon black, antifreezing agent and mixed solvent, mix and can obtain polyurethane water-proof anti-flaming dope product.
Embodiment 3
First by weight by base polyurethane prepolymer for use as 55 parts; Diacetone-acryloamide(DAA) 3 parts; Butyl stearate 6 parts; Titanate coupling agent TMC-3111.2 part; Rutile type Titanium Dioxide 22 parts; Polydimethylsiloxane 0.4 part; White carbon black 12 parts; Mixed solvent (propylene glycol monomethyl ether and water, part by weight is 2:8) 17 parts; Fire retardant material (nano-zinc borate, xylenylphosphate, melamine 1:1:1 by weight proportion) 10 parts; Anti-settling agent polyolefine ester 6 parts, gets the raw materials ready.
Production method, per kilogram diacetone-acryloamide(DAA) adds the dissolve with ethanol of the volumetric concentration 65 ~ 80% of 1.5 kilograms by weight, then mix with base polyurethane prepolymer for use as in a kettle., temperature of reaction 119 DEG C, adds titanate coupling agent TMC-311 after 1.5 hours reaction times; Continue reaction 6 hours; , after add butyl stearate, red stone-type titanium dioxide; , polydimethylsiloxane, fire retardant material, white carbon black, anti-settling agent and mixed solvent, mix and can obtain polyurethane water-proof anti-flaming dope product.
Embodiment of the present invention coating and Conventional insulation feature contrast:
All technical detected result of the present invention reaches GB/T9757-2001 and JG/T235-2008 standard rating, for ease of reference, is listed in the table below.
From above-mentioned detected result, indices of the present invention all meets national standard, is suitable for industrial mass and applies.
Claims (7)
1. polyurethane water-proof anti-flaming dope, is characterized in that: make the raw material that this coating comprises following parts by weight:
Base polyurethane prepolymer for use as 45 ~ 55 parts;
Diacetone-acryloamide(DAA) 2-3 part;
Butyl stearate 4 ~ 6 parts;
Titanate coupling agent TMC-311 0.7 ~ 1.2 part;
Titanium dioxide 15 ~ 22 parts;
Defoamer 0.2 ~ 0.4 part;
White carbon black 7 ~ 12 parts;
Mixed solvent 13 ~ 17 parts;
Fire retardant material 5-10 part;
Described base polyurethane prepolymer for use as is the performed polymer with NCO end group, and molecular weight is between 10000-4000;
Described mixed solvent is propylene glycol monomethyl ether and water, and part by weight is 2:8;
Described fire retardant material is the three kinds or more in antimonous oxide, nano-zinc borate, xylenylphosphate, melamine.
2. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: described titanium dioxide is Rutile type Titanium Dioxide.
3. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: described defoamer is polydimethylsiloxane.
4. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: its preparation method comprises the following steps:
Per kilogram diacetone-acryloamide(DAA) adds the dissolve with ethanol of the volumetric concentration 65 ~ 80% of 1.5 kilograms by weight, then mix with base polyurethane prepolymer for use as in a kettle., temperature of reaction 75 ~ 119 DEG C, adds titanate coupling agent TMC-311 after 1.2 ~ 1.5 hours reaction times; Continue reaction 3 ~ 6 hours, then add butyl stearate, Rutile type Titanium Dioxide, polydimethylsiloxane, fire retardant material, white carbon black and mixed solvent, mix and can obtain polyurethane water-proof anti-flaming dope product.
5. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: described coating also comprises: one or more in flow agent, antifreezing agent and anti-settling agent, and parts by weight are 3 ~ 6; Described flow agent is cellulose acetate butyrate, and described antifreezing agent is phenylcarbinol, and described anti-settling agent is polyolefine ester.
6. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: described coating can also add colorant further.
7. polyurethane water-proof anti-flaming dope according to claim 1, is characterized in that: this coating is to be coated with at the metope of common wall, grain depot, steel framed structure, hull or petroleum storage tank the application be covered with.
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Application publication date: 20150701 |