CN107163733A - A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite - Google Patents

A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite Download PDF

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Publication number
CN107163733A
CN107163733A CN201710513023.6A CN201710513023A CN107163733A CN 107163733 A CN107163733 A CN 107163733A CN 201710513023 A CN201710513023 A CN 201710513023A CN 107163733 A CN107163733 A CN 107163733A
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aqueous polyurethane
boehmite
preparation
parts
flaming dope
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包伟强
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Suzhou Antek Industrial Co Ltd
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Suzhou Antek Industrial Co Ltd
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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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • C—CHEMISTRY; METALLURGY
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, following steps are specifically included：First in glycerol system, Aluminum Chloride Hexahydrate is hydrolyzed under conditions of water is slowly added dropwise, nm boehmite is made, then directly mixed with aqueous acrylic emulsion, avoid nm boehmite and dry caused reunite, so that its good dispersion in aqueous acrylic emulsion, is finally mixed evenly with aqueous polyurethane, nano-sized magnesium hydroxide and defoamer, dispersant, levelling agent, thickener and deionized water, aqueous polyurethane anti-flaming dope is made.Paint stability made from this method is good, and filming performance is excellent, and fire resistance is good, and mechanical property is good, and preparation method is simple.

Description

A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite
Technical field：
The present invention relates to building coating field, a kind of fire-retardant painting of aqueous polyurethane based on nm boehmite is specifically related to The preparation method of material.
Background technology：
With the progress and the raising of living standards of the people of society, requirement more and more higher of the people to living environment, wood Material and wood-based plate with its distinctive advantage and it is easy to process the characteristics of it is extensive in building, furniture and indoor decorating industry Using.According to statistics, in the fire incident of countries in the world, building fire accounts for first place.According to national statistics department statistics：In January, 2003- Big and small fire occurs altogether for October, the whole nation 200,000 times, causes more than 4000 casualties and 12.7 hundred million yuan of property loss. Because fire can bring huge loss to the lives and properties of the mankind, fire preventing turns into the cardinal task involved the interests of the state and the people.
With the high stratification of building, clustering, the development of industrial large-sizedization and the extensive use of organic synthesis material, prevention The requirement more and more higher of fire, and also increasingly cause the attention of people.Anti-flaming dope also arises at the historic moment.Anti-flaming dope is also known as Fireproof coating, refers to be coated on flammable substrates surface, can reduce the combustibility by painting material surface to prevent fire climing rapidly Prolong, or coating and a class material of the structural material surface for the raising structure fire resistance limit.With aqueous polyurethane emulsion In the extensive use of coating industry, the more research and development for paying close attention to some high-performance or environmental protection and safety type product of people.
The content of the invention：
, should it is an object of the invention to provide a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite Paint stability made from method is good, with certain fire resistance, excellent in mechanical performance.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 20-30h is reacted at 180-220 DEG C, after reaction terminates, aqueous acrylamide is added Yogurt liquid is cooled to room temperature, obtains mixed liquor A；
(2) aqueous polyurethane, nano-sized magnesium hydroxide and defoamer, dispersant, levelling agent, thickener and deionized water are mixed Conjunction stirs, and mixed liquid B is made；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope.
As the preferred of above-mentioned technical proposal, in step (1), the aqueous acrylic emulsion is hydridization graft crosslinking pure third Olefin(e) acid emulsion.
As the preferred of above-mentioned technical proposal, in step (1), the solid content of the aqueous acrylic emulsion is 40%.
As the preferred of above-mentioned technical proposal, in step (1), the glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate Mass ratio be 10：(7-11)：1.
As the preferred of above-mentioned technical proposal, in step (1), the addition of the deionized water is aqueous acrylic emulsion The 30% of weight.
As the preferred of above-mentioned technical proposal, in step (2), the aqueous polyurethane, nano-sized magnesium hydroxide, defoamer, Dispersant, levelling agent, the amount ratio of thickener and deionized water are respectively in parts by weight：50-85 parts of aqueous polyurethane, nanometer 4-11 parts of magnesium hydroxide, 3-7 parts of defoamer, 5-10 parts of dispersant, 5-8 parts of levelling agent, 4-9 parts of thickener and deionized water 40- 80 parts.
As the preferred of above-mentioned technical proposal, in step (3), mixed liquor A, the mass ratio of mixed liquid B are (2-3)：1.
As the preferred of above-mentioned technical proposal, in step (2), the dispersant is lauryl sodium sulfate, dodecyl One kind in benzene sulfonic acid sodium salt, polyacrylamide, ethylene-acrylic acid copolymer.
As the preferred of above-mentioned technical proposal, in step (2), the thickener is carboxymethyl cellulose, hydroxypropyl methyl One kind in cellulose, hydroxyethyl cellulose, modified polyurea, amino alcohol solvay-type titanate esters, casein.
As the preferred of above-mentioned technical proposal, in step (2), the defoamer be silicone emulsion, polypropylene glycerol aether, One kind in dimethyl silicone polymer.
Compared with prior art, the present invention has advantages below：
Boehmite is fine white crystal, and perfect crystalline, crystal grain is tiny, and crystal structure defects are few, thus thermal conductivity factor compared with It is high.Nano level boehmite Brownian movement is big, and specific surface area is big, particles collision frequently, by its modification thermal conductivity of material more It is good.But nm boehmite and polymer thing compatibility are poor, and the nm boehmite prepared at present all includes drying this ring Section, easily cause intergranular hard aggregation so that boehmite it is dispersed poor.In order to solve this problem, the present invention is with sweet Oil is reaction medium, and six water aluminum oxide are under the dropwise addition of control deionized water, and nm boehmite is made in slow hydrolysis, then reacts Moist after end directly to be mixed with aqueous acrylic emulsion, obtained nm boehmite can be very good to be dispersed in matrix material In, so as to be effectively improved the fire-retardant and mechanical property of matrix material.
Embodiment：
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solution The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 20h is reacted at 180 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：7：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) it is aqueous polyurethane, nano-sized magnesium hydroxide and silicone emulsion, lauryl sodium sulfate, levelling agent, carboxymethyl is fine Dimension element and deionized water are mixed evenly, and mixed liquid B is made；Wherein, the consumption of each component is：50 parts of aqueous polyurethane, receive 4 parts of magnesium hydroxide of rice, 3 parts of silicone emulsion, 5 parts of lauryl sodium sulfate, 5 parts of levelling agent, 4 parts of carboxymethyl cellulose and deionization 40 parts of water；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 2：1.
Embodiment 2
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 30h is reacted at 220 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：11：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) by aqueous polyurethane, nano-sized magnesium hydroxide and polypropylene glycerol aether, neopelex, levelling agent, Hydroxypropyl methyl cellulose and deionized water are mixed evenly, and mixed liquid B is made；Wherein, the consumption of each component is：It is aqueous poly- 85 parts of urethane, 11 parts of nano-sized magnesium hydroxide, 7 parts of polypropylene glycerol aether, 10 parts of neopelex, 8 parts of levelling agent, hydroxyl 80 parts of 9 parts of propyl methocel and deionized water；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 3：1.
Embodiment 3
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 22h is reacted at 190 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：8：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) by aqueous polyurethane, nano-sized magnesium hydroxide and neopelex, levelling agent, hydroxyethyl cellulose and Deionized water is mixed evenly, and mixed liquid B is made；Wherein, the consumption of each component is：Aqueous polyurethane 60 part, nanometer hydrogen-oxygen Change 5 parts of magnesium, 4 parts of dimethyl silicone polymer, 6 parts of polyacrylamide, 6 parts of levelling agent, 5 parts of hydroxyethyl cellulose and deionized water 50 Part；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 2.2：1.
Embodiment 4
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 24h is reacted at 200 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：9：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) by aqueous polyurethane, nano-sized magnesium hydroxide and silicone emulsion, ethylene-acrylic acid copolymer, levelling agent, modification Polyureas and deionized water are mixed evenly, and mixed liquid B is made；Wherein, the consumption of each component is：65 parts of aqueous polyurethane, receive Rice 6 parts of magnesium hydroxide, 5 parts of silicone emulsion, 7 parts of ethylene-acrylic acid copolymer, 6.5 parts of levelling agent, 6 parts of modified polyurea and go from Sub- 60 parts of water；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 2.4：1.
Embodiment 5
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 26h is reacted at 210 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：9：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) by aqueous polyurethane, nano-sized magnesium hydroxide and polypropylene glycerol aether, lauryl sodium sulfate, levelling agent, ammonia Base alcohol solvay-type titanate esters and deionized water are mixed evenly, and mixed liquid B is made；Wherein, the consumption of each component is：It is aqueous poly- 70 parts of urethane, 8 parts of nano-sized magnesium hydroxide, 5 parts of polypropylene glycerol aether, 8 parts of lauryl sodium sulfate, 5-8 parts of levelling agent, amino 70 parts of 7 parts of alcohol solvay-type titanate esters and deionized water；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 2.6：1.
Embodiment 6
A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following Step：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min stirrings 1h is stirred under rotating speed, is then transferred in reactor, 28h is reacted at 210 DEG C, after reaction terminates, aqueous acrylic emulsion is added Room temperature is cooled to, mixed liquor A is obtained；Wherein, the mass ratio of glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：10：1； The addition of deionized water is the 30% of aqueous acrylic emulsion weight；
(2) by aqueous polyurethane, nano-sized magnesium hydroxide and polypropylene glycerol aether, polyacrylamide, levelling agent, casein It is mixed evenly with deionized water, mixed liquid B is made；Wherein, the consumption of each component is：Aqueous polyurethane 80 part, nanometer hydrogen 10 parts of magnesia, 6 parts of polypropylene glycerol aether, 9 parts of polyacrylamide, 7.5 parts of levelling agent, 8 parts of casein and deionized water 70 Part；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made Aqueous polyurethane anti-flaming dope；Wherein, mixed liquor A, the mass ratio of mixed liquid B are 2.8：1.
Performance test is carried out to coating made from embodiment 1-6 below.
1st, dispersion stabilization
After obtained coating room temperature is placed 1 month, observation is produced without obvious sediment, shows that obtained coating stabilization is good.
2nd, tensile strength
By embodiment 1-6 anti-flaming dopes film forming on the glass sheet, dry and be put into 40 DEG C of baking oven at room temperature and dry 3d. The tensile strength of polyurethane is tested according to national standard GB/T528-2009.
3rd, fire resistance
Eucalyptus veneer is cut by size 30cm*10cm, Eucalyptus veneer two sides polished with sand paper, then wood is wiped with rag Consider to be worth doing and use and dried under absolute ethyl alcohol washing or wiping, natural conditions, 150mm × 6.5mm is cut into, according to GB/T2406.2-2009 And FH.PR.16-09 timber oxygen index (OI) experimental implementation codes, surveyed using the HC-2 types oxygen index instrument of Jiangning Instrumental Analysis company Have a try the limited oxygen index of sample.
Test result is as shown in the table, and wherein comparative example 1 does not add the coating of commercially available nm boehmite, comparative example directly 2 be the coating for being not added with nm boehmite.
Tensile strength, MPa Limited oxygen index, %
Embodiment 1 55.51 35
Embodiment 2 59.17 37
Embodiment 3 58.36 35
Embodiment 4 57.69 38
Embodiment 5 59.63 41
Embodiment 6 55.78 38
Comparative example 1 19.88 25
Comparative example 2 11.56 10
From the point of view of from the above, coating mechanical property produced by the present invention is good, excellent fireproof performance.

Claims (10)

1. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite, it is characterised in that including following step Suddenly：
(1) glycerine and Aluminum Chloride Hexahydrate are mixed evenly, are then slowly added into deionized water, 5000r/min speeds of agitator Lower stirring 1h, is then transferred in reactor, and 20-30h is reacted at 180-220 DEG C, after reaction terminates, adds aqueous acrylamide yogurt Liquid is cooled to room temperature, obtains mixed liquor A；
(2) aqueous polyurethane, nano-sized magnesium hydroxide and defoamer, dispersant, levelling agent, thickener and deionized water are mixed and stirred Mix uniform, mixed liquid B is made；
(3) mixed liquor A obtained above, mixed liquid B are mixed, 30min is stirred under 1000r/min speeds of agitator, be made aqueous Polyurethane flame-proof coating.
2. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (1), the aqueous acrylic emulsion is hydridization graft crosslinking pure acrylic latex.
3. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (1), the solid content of the aqueous acrylic emulsion is 40%.
4. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (1), the mass ratio of the glycerine, aqueous acrylic emulsion and Aluminum Chloride Hexahydrate is 10：(7-11)：1.
5. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (1), the addition of the deionized water is the 30% of aqueous acrylic emulsion weight.
6. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (2), the aqueous polyurethane, nano-sized magnesium hydroxide, defoamer, dispersant, levelling agent, thickener and go The amount ratio of ionized water is respectively in parts by weight：50-85 parts of aqueous polyurethane, 4-11 parts of nano-sized magnesium hydroxide, defoamer 3-7 Part, 5-10 parts of dispersant, 5-8 parts of levelling agent, 4-9 parts of thickener and 40-80 parts of deionized water.
7. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (3), mixed liquor A, the mass ratio of mixed liquid B are (2-3)：1.
8. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (2), the dispersant be lauryl sodium sulfate, neopelex, polyacrylamide, ethene- One kind in acrylic copolymer.
9. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (2), the thickener is carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, modification One kind in polyureas, amino alcohol solvay-type titanate esters, casein.
10. a kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite as claimed in claim 1, it is special Levy and be, in step (2), the defoamer is one kind in silicone emulsion, polypropylene glycerol aether, dimethyl silicone polymer.
CN201710513023.6A 2017-06-29 2017-06-29 A kind of preparation method of the aqueous polyurethane anti-flaming dope based on nm boehmite Pending CN107163733A (en)

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CN102241931A (en) * 2011-06-14 2011-11-16 清华大学深圳研究生院 Environment-friendly type flame-retarding and smoke-suppressing paint and preparation method thereof
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* Cited by examiner, † Cited by third party
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TWI732195B (en) * 2018-05-17 2021-07-01 利機企業股份有限公司 Flame-retardant and abrasion-resistant composite
US11208533B2 (en) 2018-05-17 2021-12-28 Niching Industrial Corp. Flame-retardant and abrasion-resistant composite

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