CN111662634A - Thin-coating type water-based anti-static polyurethane mortar floor coating and preparation method thereof - Google Patents

Thin-coating type water-based anti-static polyurethane mortar floor coating and preparation method thereof Download PDF

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CN111662634A
CN111662634A CN202010587299.0A CN202010587299A CN111662634A CN 111662634 A CN111662634 A CN 111662634A CN 202010587299 A CN202010587299 A CN 202010587299A CN 111662634 A CN111662634 A CN 111662634A
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stirring
thin
water
coating
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CN111662634B (en
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吴彦鑫
杨金鑫
陈博远
何畅
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Guangdong Daer Novel Materials Co ltd
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Guangdong Daer Novel Materials Co ltd
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
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    • C09D1/00Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/06Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
    • C09D1/08Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
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    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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    • C09D7/69Particle size larger than 1000 nm
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    • C08K3/00Use of inorganic substances as compounding ingredients
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K2201/001Conductive additives
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    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/04Antistatic

Abstract

The invention discloses a thin-coating type water-based anti-static polyurethane mortar floor coating and a preparation method thereof. The terrace coating disclosed by the invention comprises a component A, a component B, a component C and a component D in a mass ratio of (3-5): (3-5): (10-25): 1, wherein: the component A comprises castor oil-based aqueous polyester polyol dispersoid, dispersant, carbon fiber, carbon nanotube slurry and water, the component B comprises polyisocyanate, the component C comprises cement, quartz sand, conductive filler, water reducing agent, carbon dioxide absorbent and defoaming agent, and the component D is color paste. The terrace coating is simple to prepare, and all the components are uniformly mixed in batches. The polyurethane mortar floor coating disclosed by the invention is small in construction thickness, and the formed floor has good antistatic performance, high hardness, high wear resistance, excellent scratch resistance and excellent chemical corrosion resistance, and can be applied to places requiring high load and antistatic performance.

Description

Thin-coating type water-based anti-static polyurethane mortar floor coating and preparation method thereof
Technical Field
The invention relates to a thin-coating type water-based anti-static polyurethane mortar floor coating and a preparation method thereof, belonging to the technical field of floor coatings.
Background
The electrostatic phenomenon widely exists in the nature, along with the application of a large amount of high polymer materials, the electrostatic electrification is more and more emphasized by people, and the static electricity is utilized by the human beings and brings disasters to the life and the production of the human beings. In order to combat electrostatic disasters, people have conducted intensive research on electrostatic charging and electrostatic control, in which antistatic materials have a considerable status in the field of material science, and it can be said that antistatic materials are the life lines of antistatic techniques and engineering.
The ground level is easy to accumulate a large amount of static charges due to frequent friction, so that the production process is hindered, the product quality is influenced, and even fire, explosion and other safety accidents can be caused seriously. The antistatic floor coating can endow the floor with conductivity to eliminate the harm of static electricity, and is widely applied to the fields of electronics, buildings, aviation, military and the like in recent years.
Along with the development of times, the automatic production of robots is gradually popularized, and simultaneously, higher requirements are provided for heavy loads of factory floor levels and the like. However, the anti-static floor coating on the market at present is mainly an epoxy self-leveling anti-static floor coating, and a film formed by the coating is insufficient in the aspects of hardness, wear resistance, skid resistance, corrosion resistance and the like, and the coating is relatively large in construction thickness and high in construction cost, and is difficult to apply to a factory floor with heavy load and high traffic volume.
Therefore, there is a need to develop an aqueous polyurethane mortar floor coating with small construction thickness, and the formed floor has good antistatic performance, high hardness, high wear resistance, excellent scratch resistance and excellent chemical corrosion resistance.
Disclosure of Invention
The invention aims to provide a thin-coating type water-based anti-static polyurethane mortar floor coating and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
a thin coating type water-based anti-static polyurethane mortar floor coating is prepared from a component A, a component B, a component C and a component D in a mass ratio of (3-5): (3-5): (10-25): 1, wherein:
the component A comprises the following components in percentage by mass: castor oil based aqueous polyester polyol dispersion: 60% -70%; dispersing agent: 1% -2%; carbon fiber: 0.2% -1%; carbon nanotube slurry: 1% -5%; water: the balance;
and B component: a polyisocyanate;
the component C comprises the following components in percentage by mass: cement: 30% -40%; quartz sand: 40% -70%; conductive filler: 5% -10%; water reducing agent: 0.5 to 1 percent; carbon dioxide absorbent: 5% -15%; defoaming agent: 0.5 to 1 percent;
and (D) component: and (4) color paste.
Preferably, the castor oil-based aqueous polyester polyol dispersion is prepared from the following raw materials in percentage by mass:
castor oil: 30% -50%;
sulfonic acid sodium salt monomer: 4% -6%;
a dihydric alcohol: 5% -10%;
dibasic acid: 25 to 35 percent;
catalyst: 0.01 to 0.2 percent;
water: and (4) the balance.
Preferably, the sulfonic acid sodium salt monomer is at least one of isophthalic acid-5-sodium sulfonate, isophthalic acid dimethyl ester-5-sodium sulfonate and isophthalic acid dihydroxy ethyl ester-5-sodium sulfonate.
Preferably, the dihydric alcohol is at least one of ethylene glycol, 1, 3-propylene glycol, 1, 4-butanediol and diethylene glycol.
Preferably, the dibasic acid is at least one of adipic acid and 1, 4-cyclohexanedicarboxylic acid.
Preferably, the catalyst is a titanate-based catalyst.
Further preferably, the catalyst is tetrabutyl titanate.
Preferably, the castor oil-based aqueous polyester polyol dispersion is prepared by the following method: adding dihydric alcohol, a sodium sulfonate monomer and a catalyst into a reaction kettle, charging protective gas, heating to 170-190 ℃ for reaction, adding castor oil and dibasic acid into the reaction kettle when the acid value of a reaction system is reduced to 1-5 mgKOH, heating to 200-230 ℃ for reaction for 3-5 h, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to below 80 ℃, adding water, and uniformly stirring.
Preferably, the dispersing agent is at least one of BYK-190, BYK-194N and TEGO Dispers 760W.
Preferably, the length of the carbon fiber is 1-4 mm.
Preferably, the mass percentage of the single-walled carbon nanotube in the carbon nanotube slurry is 1-4%.
Preferably, the polyisocyanate is at least one of polymethylene polyphenyl polyisocyanate, carbodiimide-modified diphenylmethane-4, 4' -diisocyanate, and hexamethylene diisocyanate trimer.
Preferably, the cement is white cement.
Preferably, the particle size of the quartz sand is 0.5-1.7 mm.
Preferably, the conductive filler is at least one of conductive mica powder, conductive barium sulfate and conductive titanium dioxide.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
Preferably, the carbon dioxide absorbent is hydrated lime.
Preferably, the defoaming agent is
Figure BDA0002554259500000021
At least one of VXW 6235 (Zhan new resins (China) Co., Ltd.), BYK-1691SD and AGITAN P803 (German Ming Ling).
The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 500-1000 r/min, stirring for 5-10 min, adding carbon fibers, carbon nanotube slurry and a dispersing agent, stirring for 20-40 min, adding water, adjusting the stirring speed to 300-500 r/min, and stirring to obtain a component A;
2) weighing polyisocyanate to obtain a component B;
3) mixing cement, quartz sand, conductive filler, a water reducing agent, a carbon dioxide absorbent and a defoaming agent, and stirring to obtain a component C;
4) weighing color paste for color matching to obtain a component D;
5) and mixing the component A and the component D, stirring, adding the component B, stirring for 1-2 min, adding the component C, and stirring for 3-5 min to obtain the thin-coating type water-based anti-static polyurethane mortar floor coating.
The invention has the beneficial effects that: the polyurethane mortar floor coating disclosed by the invention is small in construction thickness, and the formed floor has good antistatic performance, high hardness, high wear resistance, excellent scratch resistance and excellent chemical corrosion resistance, and can be applied to places requiring high load and antistatic performance.
Specifically, the method comprises the following steps:
1) the polyurethane mortar floor coating disclosed by the invention is added with the carbon fibers, the carbon nanotubes and the conductive filler, so that a perfect conductive network can be formed, the floor is endowed with good antistatic performance, and the resistance is stable, lasting and free of blind spots;
2) the castor oil-based aqueous polyester polyol dispersoid is added into the polyurethane mortar floor coating, the hydroxyl contained in the dispersoid can be crosslinked and cured with-NCO in polyisocyanate to endow the floor with the properties of high strength, high hardness, excellent chemical resistance, mechanical property and the like, simultaneously, the-NCO in the polyisocyanate can also react with water in the coating to generate a polyurethane urea bond, thereby improving the crosslinking density and increasing the mechanical properties of the floor, such as hardness, wear resistance and the like, on the other hand, cement is added into the polyurethane mortar floor coating, the cement not only can be subjected to hydration reaction and condensation, but also can form an interpenetrating network structure with a polyurethane chain segment, namely, the polyurethane high molecular material with excellent performance is subjected to a curing reaction in the coating film forming process, and inorganic cement mortar is subjected to hydration reaction to form an organic-inorganic composite floor, the final terrace has the advantages of high load, high wear resistance, excellent scratch resistance, chemical corrosion resistance and the like;
3) the polyurethane mortar floor coating disclosed by the invention can control the thickness of the floor to be below 3mm and the fluidity to be 135-150 mm under the condition of ensuring that the mechanical properties such as the compressive strength, the wear resistance and the like of the floor are not reduced, and the construction cost can be greatly reduced.
Detailed Description
The invention will be further explained and illustrated with reference to specific examples.
Example 1:
a thin coating type water-based antistatic polyurethane mortar floor coating comprises the following components:
TABLE 1 composition table of thin coating type waterborne antistatic polyurethane mortar floor coating
Figure BDA0002554259500000041
Note:
the castor oil based water-based polyester polyol dispersoid is prepared from the following raw materials in percentage by mass: castor oil: 40 percent; dimethyl isophthalate-5-sulfonic acid sodium salt: 5 percent; 1, 4-butanediol: 8 percent; 1, 4-cyclohexanedicarboxylic acid: 25 percent; tetrabutyl titanate: 0.1 percent; deionized water: 21.9%, and the preparation method comprises the following steps: adding dimethyl isophthalate-5-sodium sulfonate, 1, 4-butanediol and tetrabutyl titanate into a reaction kettle, introducing nitrogen, heating to 180 ℃ for reaction, adding castor oil and 1, 4-cyclohexanedicarboxylic acid into the reaction kettle when the acid value of a reaction system is reduced to 3mgKOH, heating to 220 ℃ for reaction for 5 hours, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to 60 ℃, adding deionized water, and uniformly stirring.
The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 800r/min, stirring for 7min, adding the carbon fibers, the single-walled carbon nanotube aqueous dispersion slurry and BYK-190, stirring for 30min, adding deionized water, adjusting the stirring speed to 500r/min, and uniformly stirring to obtain a component A;
2) weighing polymethylene polyphenyl polyisocyanate to obtain a component B;
3) white cement, quartz sand, conductive mica powder, polycarboxylic acid water reducing agent, hydrated lime and
Figure BDA0002554259500000052
mixing VXW 6235, and stirring uniformly to obtain a component C;
4) weighing special color paste for polyurethane, mixing colors, and stirring uniformly after color mixing is finished to obtain a component D;
5) and (2) mixing the component A and the component D according to the mass ratio of the component A to the component B to the component C to the component D of 3:3.5:15:1, uniformly stirring, adding the component B, stirring for 2min, adding the component C, and stirring for 4min to obtain the thin-coating type waterborne antistatic polyurethane mortar terrace coating.
Example 2:
a thin coating type water-based antistatic polyurethane mortar floor coating comprises the following components:
TABLE 2 composition table of thin coating type waterborne antistatic polyurethane mortar terrace coating
Figure BDA0002554259500000051
Note:
the castor oil based water-based polyester polyol dispersoid is prepared from the following raw materials in percentage by mass: castor oil: 40 percent; dimethyl isophthalate-5-sulfonic acid sodium salt: 5 percent; 1, 4-butanediol: 8 percent; 1, 4-cyclohexanedicarboxylic acid: 25 percent; tetrabutyl titanate: 0.1 percent; deionized water: 21.9%, and the preparation method comprises the following steps: adding dimethyl isophthalate-5-sodium sulfonate, 1, 4-butanediol and tetrabutyl titanate into a reaction kettle, introducing nitrogen, heating to 180 ℃ for reaction, adding castor oil and 1, 4-cyclohexanedicarboxylic acid into the reaction kettle when the acid value of a reaction system is reduced to 3mgKOH, heating to 220 ℃ for reaction for 5 hours, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to 60 ℃, adding deionized water, and uniformly stirring.
The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 800r/min, stirring for 7min, adding carbon fibers, the single-wall carbon nanotube aqueous dispersion slurry and TEGO Dispers 760W, stirring for 30min, adding deionized water, adjusting the stirring speed to 500r/min, and stirring uniformly to obtain a component A;
2) weighing hexamethylene diisocyanate trimer to obtain a component B;
3) mixing white cement, quartz sand, conductive barium sulfate, a polycarboxylic acid water reducing agent, hydrated lime and AGITAN P803, and uniformly stirring to obtain a component C;
4) weighing special color paste for polyurethane, mixing colors, and stirring uniformly after color mixing is finished to obtain a component D;
5) and (2) mixing the component A and the component D according to the mass ratio of the component A to the component B to the component C to the component D of 3:5:15:1, uniformly stirring, adding the component B, stirring for 2min, adding the component C, and stirring for 4min to obtain the thin-coating type waterborne anti-static polyurethane mortar floor coating.
Example 3:
a thin coating type water-based antistatic polyurethane mortar floor coating comprises the following components:
TABLE 3 composition table of thin coating type waterborne antistatic polyurethane mortar terrace coating
Figure BDA0002554259500000061
Figure BDA0002554259500000071
Note:
the castor oil based water-based polyester polyol dispersoid is prepared from the following raw materials in percentage by mass: castor oil: 36 percent; dimethyl isophthalate-5-sulfonic acid sodium salt: 5 percent; diethylene glycol: 6 percent; adipic acid: 27%; tetrabutyl titanate: 0.1 percent; deionized water: 25.9%, the preparation method comprises the following steps: adding dimethyl isophthalate-5-sodium sulfonate, diethylene glycol and tetrabutyl titanate into a reaction kettle, introducing nitrogen, heating to 180 ℃ for reaction, adding castor oil and adipic acid into the reaction kettle when the acid value of a reaction system is reduced to 3mgKOH, heating to 220 ℃ for reaction for 5 hours, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to 60 ℃, adding deionized water, and uniformly stirring.
The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 800r/min, stirring for 7min, adding the carbon fibers, the single-walled carbon nanotube aqueous dispersion slurry and BYK-190, stirring for 30min, adding deionized water, adjusting the stirring speed to 500r/min, and uniformly stirring to obtain a component A;
2) weighing carbodiimide modified diphenylmethane-4, 4' -diisocyanate to obtain a component B;
3) mixing white cement, quartz sand, conductive mica powder, a polycarboxylic acid water reducing agent, hydrated lime and BYK-1691SD, and uniformly stirring to obtain a component C;
4) weighing special color paste for polyurethane, mixing colors, and stirring uniformly after color mixing is finished to obtain a component D;
5) and (2) mixing the component A and the component D according to the mass ratio of the component A to the component B to the component C to the component D of 4:5:15:1, uniformly stirring, adding the component B, stirring for 2min, adding the component C, and stirring for 4min to obtain the thin-coating type waterborne anti-static polyurethane mortar floor coating.
Example 4:
a thin coating type water-based antistatic polyurethane mortar floor coating comprises the following components:
TABLE 4 composition table of thin coating type waterborne antistatic polyurethane mortar terrace coating
Figure BDA0002554259500000081
Note:
the castor oil based water-based polyester polyol dispersoid is prepared from the following raw materials in percentage by mass: castor oil: 34.9 percent; sodium bis hydroxyethyl isophthalate-5-sulfonate: 5 percent; 1, 4-butanediol: 8 percent; 1, 4-cyclohexanedicarboxylic acid: 30 percent; tetrabutyl titanate: 0.1 percent; deionized water: 22%, and the preparation method comprises the following steps: adding m-phthalic acid dihydroxy ethyl ester-5-sodium sulfonate, 1, 4-butanediol and tetrabutyl titanate into a reaction kettle, charging nitrogen, heating to 180 ℃ for reaction, adding castor oil and 1, 4-cyclohexanedicarboxylic acid into the reaction kettle when the acid value of a reaction system is reduced to 3mgKOH, heating to 220 ℃ for reaction for 5 hours, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to 60 ℃, adding deionized water, and uniformly stirring.
The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 800r/min, stirring for 7min, adding the carbon fibers, the single-walled carbon nanotube aqueous dispersion slurry and BYK-190, stirring for 30min, adding deionized water, adjusting the stirring speed to 500r/min, and uniformly stirring to obtain a component A;
2) weighing polymethylene polyphenyl polyisocyanate to obtain a component B;
3) white cement, quartz sand, conductive titanium dioxide, polycarboxylic acid water reducing agent, hydrated lime and
Figure BDA0002554259500000091
mixing VXW 6235, and stirring uniformly to obtain a component C;
4) weighing special color paste for polyurethane, mixing colors, and stirring uniformly after color mixing is finished to obtain a component D;
5) and (2) mixing the component A and the component D according to the mass ratio of the component A to the component B to the component C to the component D of 5:5:15:1, uniformly stirring, adding the component B, stirring for 2min, adding the component C, and stirring for 4min to obtain the thin-coating type waterborne anti-static polyurethane mortar floor coating.
Comparative example 1:
an aqueous antistatic polyurethane mortar floor coating was the same as in example 1 except that the castor oil-based aqueous polyester polyol dispersion was replaced with a common aqueous polyester polyol dispersion.
Comparative example 2:
the epoxy antistatic floor coating is a two-component epoxy floor coating, wherein liquid bisphenol A epoxy resin is used as a film forming substance, modified amine is used as a curing agent, and conductive carbon fiber is used as a conductive filler.
Comparative example 3:
an aqueous antistatic polyurethane mortar floor coating was prepared as in example 1 except that the aqueous dispersion slurry of single-walled carbon nanotubes was replaced with deionized water.
And (3) performance testing:
according to GB/T22374 and 2018 floor coating materials, the floor coatings of the embodiments 1-4 and the comparative examples 1-3 are subjected to performance tests, and the test results are shown in the following table:
TABLE 5 Performance test results of terrace coatings of examples 1 to 4 and comparative examples 1 to 3
Figure BDA0002554259500000092
Figure BDA0002554259500000101
As can be seen from Table 5: compared with a polyurethane mortar terrace prepared by a common aqueous polyester dispersion and a common commercially available epoxy antistatic terrace, the aqueous polyurethane mortar terrace prepared by the castor oil modified aqueous polyester dispersion has better fluidity, more excellent compressive strength, higher hardness and better wear resistance; the carbon nanotube-carbon fiber-conductive filler electrical conductor system has a lower electrical resistance than the conductive fiber-conductive filler system, and has no blind spots, i.e., has more excellent electrical conductivity.
In conclusion, the thin coating type water-based anti-static polyurethane mortar floor coating disclosed by the invention is good in fluidity, and the obtained floor has mechanical properties such as more excellent compressive strength, higher hardness, better wear resistance and the like, and has an excellent and long-acting anti-static function.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (10)

1. The utility model provides a thin type waterborne prevents static polyurethane mortar terrace coating which characterized in that: the paint is prepared from a component A, a component B, a component C and a component D according to the mass ratio (3-5): (3-5): (10-25): 1, wherein:
the component A comprises the following components in percentage by mass: castor oil based aqueous polyester polyol dispersion: 60% -70%; dispersing agent: 1% -2%; carbon fiber: 0.2% -1%; carbon nanotube slurry: 1% -5%; water: the balance;
and B component: a polyisocyanate;
the component C comprises the following components in percentage by mass: cement: 30% -40%; quartz sand: 40% -70%; conductive filler: 5% -10%; water reducing agent: 0.5 to 1 percent; carbon dioxide absorbent: 5% -15%; defoaming agent: 0.5 to 1 percent; and (D) component: and (4) color paste.
2. The thin-coating type waterborne antistatic polyurethane mortar floor coating according to claim 1, characterized in that: the castor oil based water-based polyester polyol dispersoid is prepared from the following raw materials in percentage by mass:
castor oil: 30% -50%;
sulfonic acid sodium salt monomer: 4% -6%;
a dihydric alcohol: 5% -10%;
dibasic acid: 25 to 35 percent;
catalyst: 0.01 to 0.2 percent;
water: and (4) the balance.
3. The thin-coating type waterborne antistatic polyurethane mortar floor coating according to claim 2, characterized in that: the sulfonic acid sodium salt monomer is at least one of isophthalic acid-5-sodium sulfonate, isophthalic acid dimethyl ester-5-sodium sulfonate and isophthalic acid dihydroxy ethyl ester-5-sodium sulfonate; the dihydric alcohol is at least one of ethylene glycol, 1, 3-propylene glycol, 1, 4-butanediol and diethylene glycol; the dibasic acid is at least one of adipic acid and 1, 4-cyclohexanedicarboxylic acid.
4. The thin-coating type waterborne antistatic polyurethane mortar floor coating according to claim 2, characterized in that: the castor oil-based aqueous polyester polyol dispersion is prepared by the following method: adding dihydric alcohol, a sodium sulfonate monomer and a catalyst into a reaction kettle, charging protective gas, heating to 170-190 ℃ for reaction, adding castor oil and dibasic acid into the reaction kettle when the acid value of a reaction system is reduced to 1-5 mgKOH, heating to 200-230 ℃ for reaction for 3-5 h, stopping the reaction when the hydroxyl value reaches a theoretical value, cooling to below 80 ℃, adding water, and uniformly stirring.
5. The thin coating type water-based antistatic polyurethane mortar floor coating according to any one of claims 1 to 4, characterized in that: the dispersing agent is at least one of BYK-190, BYK-194N and TEGO Dispers 760W.
6. The thin coating type water-based antistatic polyurethane mortar floor coating according to any one of claims 1 to 4, characterized in that: the length of the carbon fiber is 1-4 mm.
7. The thin coating type water-based antistatic polyurethane mortar floor coating according to any one of claims 1 to 4, characterized in that: the mass percentage of the single-walled carbon nanotube in the carbon nanotube slurry is 1-4%.
8. The thin coating type water-based antistatic polyurethane mortar floor coating according to any one of claims 1 to 4, characterized in that: the polyisocyanate is at least one of polymethylene polyphenyl polyisocyanate, carbodiimide modified diphenylmethane-4, 4' -diisocyanate and hexamethylene diisocyanate trimer.
9. The thin coating type water-based antistatic polyurethane mortar floor coating according to any one of claims 1 to 4, characterized in that: the particle size of the quartz sand is 0.5-1.7 mm; the conductive filler is at least one of conductive mica powder, conductive barium sulfate and conductive titanium dioxide.
10. The preparation method of the thin coating type water-based antistatic polyurethane mortar floor coating of any one of claims 1 to 9, characterized in that: the method comprises the following steps:
1) adding the castor oil-based aqueous polyester polyol dispersoid into a dispersion cylinder, adjusting the stirring speed to 500-1000 r/min, stirring for 5-10 min, adding carbon fibers, carbon nanotube slurry and a dispersing agent, stirring for 20-40 min, adding water, adjusting the stirring speed to 300-500 r/min, and stirring to obtain a component A;
2) weighing polyisocyanate to obtain a component B;
3) mixing cement, quartz sand, conductive filler, a water reducing agent, a carbon dioxide absorbent and a defoaming agent, and stirring to obtain a component C;
4) weighing color paste for color matching to obtain a component D;
5) and mixing the component A and the component D, stirring, adding the component B, stirring for 1-2 min, adding the component C, and stirring for 3-5 min to obtain the thin-coating type water-based anti-static polyurethane mortar floor coating.
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CN116515374A (en) * 2022-11-29 2023-08-01 海口正宇企业管理咨询服务有限公司 Fireproof water-based polyurethane mortar floor coating and preparation method thereof
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CN115975426A (en) * 2023-01-06 2023-04-18 深圳市迪美瑞新材料科技有限公司 Anti-static super-wear-resistant terrace material

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