CN113025097A - High-weather-resistance exposed roof waterproof coating and preparation method thereof - Google Patents
High-weather-resistance exposed roof waterproof coating and preparation method thereof Download PDFInfo
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- CN113025097A CN113025097A CN201911344742.5A CN201911344742A CN113025097A CN 113025097 A CN113025097 A CN 113025097A CN 201911344742 A CN201911344742 A CN 201911344742A CN 113025097 A CN113025097 A CN 113025097A
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
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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
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
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Abstract
The invention discloses a high weather resistance exposed roof waterproof coating and a preparation method thereof, and the coating comprises the following components, by weight, 15 parts of organic silicon resin A, 25 parts of organic silicon resin B, 1 parts of organic silicon monomer A of a reaction group, 3 parts of organic silicon monomer B of a reaction group, 1 parts of organic silicon monomer C of a reaction group, 3 parts of an environment-friendly plasticizer, 15.5 parts of superfine heavy calcium carbonate, 28.5 parts of superfine light calcium carbonate, 5 parts of quartz sand, 0.5 part of a defoaming agent, 1 part of a light stabilizer, 0.5 part of a pigment, 0.05 part of an environment-friendly catalyst and 0.95 part of a thickening agent. The invention integrates the characteristics of good water resistance, high flexibility, crack resistance and weather resistance of the waterproof slurry and the organic material, overcomes the defects that the waterproof slurry and the organic material need to be stirred on site, cannot be used for moist base layer construction and has low bonding strength with the base layer, and has the advantages of high permeability, high bonding strength, high flexibility, high water resistance and high weather resistance.
Description
Technical Field
The invention relates to the field of waterproof coatings, in particular to a high-weather-resistance exposed roof waterproof coating and a preparation method thereof.
Background
The exposed waterproof is a polyether silane end-capped polymer waterproof coating, the appearance is transparent, various colors can be adjusted during production, the attractiveness of the roof of the current building can be met, and the product has the excellent characteristics of polyether and organosilicon, such as high mechanical strength, good elasticity, excellent hydrophobicity and weather resistance. Rapid curing at room temperature under moisture and catalyst conditions, outstanding adhesion, and no need for pretreatment. The high-weather-resistance exposed roof waterproof coating provided by the invention adopts various silane connection technologies, the product viscosity is low, heating and cold construction are not required, the construction is convenient and fast, the coating is easy to brush and dry, the waterproof coating has strong adaptability, heat resistance and cold resistance, and the application is wide.
Disclosure of Invention
The invention aims to provide a waterproof coating, namely a high-weather-resistance exposed roof waterproof coating and a preparation method thereof.
The technical problem to be solved by the invention is solved by adopting the following technical scheme:
a high weather resistance exposed roof waterproof coating and a preparation method thereof are disclosed, wherein the coating comprises, by weight, 15-25 parts of organic silicon resin A, 25-35 parts of organic silicon resin B, 1-3 parts of reactive group organic silicon monomer A, 3-6 parts of reactive group organic silicon monomer B, 1-3 parts of reactive group organic silicon monomer C, 3-5 parts of environment-friendly plasticizer, 15.5-20 parts of superfine heavy calcium, 28.5-32.5 parts of superfine light calcium, 5-8 parts of quartz sand, 0.5-1.2 parts of defoaming agent, 1-2 parts of light stabilizer, 0.5-0.8 part of pigment, 0.05-0.08 part of environment-friendly catalyst and 0.95-1.5 parts of thickener.
The high-weather-resistance exposed roof waterproof coating comprises, by weight, 15 parts of organic silicon resin A, 25 parts of organic silicon resin B, 1 parts of reactive group organic silicon monomer A, 3 parts of reactive group organic silicon monomer B, 1 parts of reactive group organic silicon monomer C, 3 parts of an environment-friendly plasticizer, 15.5 parts of superfine heavy calcium, 28.5 parts of superfine light calcium, 5 parts of quartz sand, 0.5 part of a defoaming agent, 1 part of a light stabilizer, 0.5 part of a pigment, 0.05 part of an environment-friendly catalyst and 0.95 part of a thickening agent.
The organic silicon resin is polyether siloxane modified polymer, and can be one or more of Dow DOWSIL 3 Additive, Japanese three-well HIPRENE XL/AL, GENEISOIL WP1, STP-E35, Wake XL10/GF9, Yingchuang Delong 1146, Mi chart A171, Dow Corning Daokun Z-6020.
The organic silicon monomer of the reactive group is one or more of silane coupling agent, vinyl trimethoxy silane, diamino functional group silane, 3-aminopropyl trimethoxy silane and gamma-methacryloxypropyl trimethoxy silane.
The environment-friendly plasticizer is diisononyl phthalate (DINP)
The superfine heavy calcium is a mixture of 800 meshes and 1250 meshes, the superfine light calcium is 1500 meshes of modified low-oil-absorption-value powder, and the quartz sand is a mixture of 70-110 meshes and 120-180 meshes.
The defoaming agent is one or more of a mineral oil defoaming agent, an organic silicon defoaming agent and a polysiloxane defoaming agent.
The light stabilizer is a liquid heat and light stabilizing system, and is a synergistic mixture composed of IRGANOX1135, TINUVIN571 and TINUVIN 765. Chemical name uv absorber: 20% IRGANOX1135 + 40% TINUVIN571 + 40% TINUVIN765
The pigment is a mineral inorganic pigment with low oil absorption.
The environment-friendly catalyst is one or more of dibutyltin dilaurate, pentamethyldiethylenetriamine and bismuth isooctanoate.
The thickening agent is fumed silica white.
The preparation method of the high-weather-resistance exposed roof waterproof coating comprises the following steps:
and T1, weighing the organic silicon resin A and the organic silicon resin B, putting the weighed organic silicon resin A and the organic silicon resin B into a stirring kettle, and starting low-speed stirring.
T2, weighing the reaction group organosilicon monomers A, B and C and the environment-friendly plasticizer respectively, slowly putting the weighed materials into a stirring kettle while stirring, and stirring the materials at a low speed for 5 minutes;
t3, respectively weighing the superfine heavy calcium carbonate, the superfine light calcium carbonate and the quartz sand, slowly putting into a stirring kettle while stirring, then adding the defoaming agent, and stirring at a high speed for 15 minutes;
t4, adding the weighed light stabilizer, the pigment and the environment-friendly catalyst into a stirring kettle, and regulating the speed to be medium-speed dispersion for 10 minutes;
t5, slowly adding the weighed thickening agent into a dispersion kettle, and stirring at a low speed for 10 minutes;
and T6, after all the materials are added, purging the pot cover on the side of the kettle by using nitrogen, closing the pot cover, keeping the speed at low stirring speed, opening a vacuum system, and carrying out dewatering and defoaming under the pressure of minus 0.1MPa for 15 minutes.
And T7, closing the vacuum system, opening a negative pressure valve, detecting the state of the waterproof coating, and filtering, discharging and packaging the fine, full and fruitless state.
The invention has the positive effects that: the invention integrates the characteristics of good water resistance, high flexibility, crack resistance and weather resistance of the waterproof slurry and the organic material, overcomes the defects that the waterproof slurry and the organic material need to be stirred on site, cannot be used for moist base layer construction and has low bonding strength with the base layer, and has the advantages of high permeability, high bonding strength, high flexibility, high water resistance and high weather resistance.
Detailed Description
The technical solution of the present invention will be further specifically described below with reference to specific embodiments.
A high weather resistance exposed roof waterproof coating and a preparation method thereof are disclosed, wherein the coating comprises, by weight, 15-25 parts of organic silicon resin A, 25-35 parts of organic silicon resin B, 1-3 parts of reactive group organic silicon monomer A, 3-6 parts of reactive group organic silicon monomer B, 1-3 parts of reactive group organic silicon monomer C, 3-5 parts of environment-friendly plasticizer, 15.5-20 parts of superfine heavy calcium, 28.5-32.5 parts of superfine light calcium, 5-8 parts of quartz sand, 0.5-1.2 parts of defoaming agent, 1-2 parts of light stabilizer, 0.5-0.8 part of pigment, 0.05-0.08 part of environment-friendly catalyst and 0.95-1.5 parts of thickener.
The organic silicon resin is polyether siloxane modified polymer, can be Dow DOSIL 3 Additive, Japanese three-well HIPRENE XL/AL, GENEISOIL WP1, STP-E35, Wake XL10/GF9, Yingchuang Delong 1146, Mi graph A171 and Dow Corning Z-6020, the organic silicon monomer of the reaction group is one or more of silane coupling agent, vinyl trimethoxy silane, diamino type functional group silane, 3-aminopropyl trimethoxy silane and gamma-methacryloxypropyl trimethoxy silane, the environment-friendly plasticizer is diisononyl phthalate (DINP), the superfine heavy calcium is a mixture of 800 meshes and 1250 meshes, the superfine light calcium is 1500 meshes modified low-value powder, the quartz sand is a mixture of 70 meshes to 110 meshes and 120 meshes, the defoaming agent is mineral oil, one or more of an organic silicon defoaming agent and a polysiloxane defoaming agent.
The light stabilizer is a liquid heat and light stabilizing system, and is a synergistic mixture composed of IRGANOX1135, TINUVIN571 and TINUVIN 765. Chemical name uv absorber: 20% of IRGANOX1135 + 40% of TINUVIN571 + 40% of TINUVIN765, wherein the pigment is a mineral inorganic pigment with low oil absorption, the environment-friendly catalyst is one or more of dibutyltin dilaurate, pentamethyl diethylenetriamine and bismuth isooctanoate, and the thickening agent is fumed silica white carbon black.
A preparation method of the high-weather-resistance exposed roof waterproof coating comprises the following steps:
and T1, weighing the organic silicon resin A and the organic silicon resin B, putting the weighed organic silicon resin A and the organic silicon resin B into a stirring kettle, and starting low-speed stirring.
T2, weighing the reaction group organosilicon monomers A, B and C and the environment-friendly plasticizer respectively, slowly putting the weighed materials into a stirring kettle while stirring, and stirring the materials at a low speed for 5 minutes;
t3, respectively weighing the superfine heavy calcium carbonate, the superfine light calcium carbonate and the quartz sand, slowly putting into a stirring kettle while stirring, then adding the defoaming agent, and stirring at a high speed for 15 minutes;
t4, adding the weighed light stabilizer, the pigment and the environment-friendly catalyst into a stirring kettle, and regulating the speed to be medium-speed dispersion for 10 minutes;
t5, slowly adding the weighed thickening agent into a dispersion kettle, and stirring at a low speed for 10 minutes;
and T6, after all the materials are added, purging the pot cover on the side of the kettle by using nitrogen, closing the pot cover, keeping the speed at low stirring speed, opening a vacuum system, and carrying out dewatering and defoaming under the pressure of minus 0.1MPa for 15 minutes.
And T7, closing the vacuum system, opening a negative pressure valve, detecting the state of the waterproof coating, and filtering, discharging and packaging the fine, full and fruitless state.
Example 1
The high weather resistance exposed roof waterproof paint consists of organosilicon resin A15 weight portions, organosilicon resin B25 weight portions, reaction radical organosilicon monomer A1 weight portions, reaction radical organosilicon monomer B3 weight portions, reaction radical organosilicon monomer C1 weight portions, environment protecting plasticizer 3 weight portions, superfine heavy calcium 15.5 weight portions, superfine light calcium 28.5 weight portions, quartz sand 5 weight portions, defoaming agent 0.5 weight portions, light stabilizer 1 weight portions, pigment 0.5 weight portions, environment protecting catalyst 0.05 weight portions and thickener 0.95 weight portions.
A preparation method of the high-weather-resistance exposed roof waterproof coating comprises the following steps:
and T1, weighing the organic silicon resin A and the organic silicon resin B, putting the weighed organic silicon resin A and the organic silicon resin B into a stirring kettle, and starting low-speed stirring.
T2, weighing the reaction group organosilicon monomers A, B and C and the environment-friendly plasticizer respectively, slowly putting the weighed materials into a stirring kettle while stirring, and stirring the materials at a low speed for 5 minutes;
t3, respectively weighing the superfine heavy calcium carbonate, the superfine light calcium carbonate and the quartz sand, slowly putting into a stirring kettle while stirring, then adding the defoaming agent, and stirring at a high speed for 15 minutes;
t4, adding the weighed light stabilizer, the pigment and the environment-friendly catalyst into a stirring kettle, and regulating the speed to be medium-speed dispersion for 10 minutes;
t5, slowly adding the weighed thickening agent into a dispersion kettle, and stirring at a low speed for 10 minutes;
and T6, after all the materials are added, purging the pot cover on the side of the kettle by using nitrogen, closing the pot cover, keeping the speed at low stirring speed, opening a vacuum system, and carrying out dewatering and defoaming under the pressure of minus 0.1MPa for 15 minutes.
And T7, closing the vacuum system, opening a negative pressure valve, detecting the state of the waterproof coating, and filtering, discharging and packaging the fine, full and fruitless state.
The paint prepared by the formula and the preparation method of the embodiment 1 is tested and has the following main technical indexes:
TABLE 1
| Serial number | Item | Technical index | Measured value | Determination |
| 1 | Solids content of% | ≥85.0 | 96.81 | Qualified |
| 2 | Surface drying time/h | ≤12 | 5 | Qualified |
| 3 | Actual drying time/h | ≤24 | 12 | Qualified |
| 4 | Tensile strength, MPa | ≥2.0 | 2.24 | Qualified |
| 5 | Adhesive strength/MPa | ≥0.5 | 0.7 | Qualified |
| 6 | Elongation at break | ≥100 | 190 | Qualified |
| 7 | Tear Strength/(N/mm) | ≥10 | 15 | Qualified |
| 8 | Low temperature bendability | No crack at-30 deg.C | Without cracks | Qualified |
| 9 | Water impermeability | 0.3MPa,120min is waterproof | 0.3MPa,120min is waterproof | Qualified |
Example 2
The high weather resistance exposed roof waterproof paint consists of organosilicon resin A18 weight portions, organosilicon resin B230 weight portions, reaction radical organosilicon monomer A2 weight portions, reaction radical organosilicon monomer B5 weight portions, reaction radical organosilicon monomer C2 weight portions, environment protecting plasticizer 4 weight portions, superfine heavy calcium carbonate 18.5 weight portions, superfine light calcium carbonate 30.5 weight portions, quartz sand 7 weight portions, defoaming agent 1.0 weight portion, light stabilizer 1 weight portion, pigment 0.6 weight portion, environment protecting catalyst 0.06 weight portion and thickener 1.2 weight portions.
The preparation method is the same as that in example 1.
The paint prepared by the formula and the preparation method of the embodiment 2 is tested and has the following main technical indexes:
TABLE 2
| Serial number | Item | Technical index | Measured value | Determination |
| 1 | Solids content of% | ≥85.0 | 94.45 | Qualified |
| 2 | Surface drying time/h | ≤12 | 7 | Qualified |
| 3 | Actual drying time/h | ≤24 | 14 | Qualified |
| 4 | Tensile strength, MPa | ≥2.0 | 2.12 | Qualified |
| 5 | Adhesive strength/MPa | ≥0.5 | 0.62 | Qualified |
| 6 | Elongation at break | ≥100 | 160 | Qualified |
| 7 | Tear Strength/(N/mm) | ≥10 | 13 | Qualified |
| 8 | Low temperature bendability | No crack at-30 deg.C | Without cracks | Qualified |
| 9 | Water impermeability | 0.3MPa,120min is waterproof | 0.3MPa,120min is waterproof | Qualified |
Example 3
The high weather resistance exposed roof waterproof paint consists of organosilicon resin A25 weight portions, organosilicon resin B35 weight portions, reaction radical organosilicon monomer A3 weight portions, reaction radical organosilicon monomer B6 weight portions, reaction radical organosilicon monomer C3 weight portions, environment protecting plasticizer 5 weight portions, superfine heavy calcium 20 weight portions, superfine light calcium 32.5 weight portions, quartz sand 8 weight portions, defoaming agent 1.2 weight portions, light stabilizer 2 weight portions, pigment 0.8 weight portions, environment protecting catalyst 0.08 weight portions and thickener 1.5 weight portions.
The preparation method is the same as that in example 1.
The paint prepared by the formula and the preparation method of the embodiment 2 is tested and has the following main technical indexes:
TABLE 3
| Serial number | Item | Technical index | Measured value | Determination |
| 1 | Solids content of% | ≥85.0 | 95.85 | Qualified |
| 2 | Surface drying time/h | ≤12 | 8 | Qualified |
| 3 | Actual drying time/h | ≤24 | 16 | Qualified |
| 4 | Tensile strength, MPa | ≥2.0 | 2.01 | Qualified |
| 5 | Adhesive strength/MPa | ≥0.5 | 0.5 | Qualified |
| 6 | Elongation at break | ≥100 | 160 | Qualified |
| 7 | Tear Strength/(N/mm) | ≥10 | 18 | Qualified |
| 8 | Low temperature bendability | No crack at-30 deg.C | Without cracks | Qualified |
| 9 | Water impermeability | 0.3MPa,120min is waterproof | 0.3MPa,120min is waterproof | Qualified |
The above embodiments are provided to further explain the technical problems, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A high weather resistance exposed roof waterproof coating and a preparation method thereof are characterized in that: according to parts by weight, the environment-friendly calcium carbonate comprises the following components of 15-25 parts of organic silicon resin A, 25-35 parts of organic silicon resin B, 1-3 parts of reactive group organic silicon monomer A, 3-6 parts of reactive group organic silicon monomer B, 1-3 parts of reactive group organic silicon monomer C, 3-5 parts of an environment-friendly plasticizer, 15.5-20 parts of superfine heavy calcium carbonate, 28.5-32.5 parts of superfine light calcium carbonate, 5-8 parts of quartz sand, 0.5-1.2 parts of a defoaming agent, 1-2 parts of a light stabilizer, 0.5-0.8 part of pigment, 0.05-0.08 part of an environment-friendly catalyst and 0.95-1.5 parts of a thickening agent.
2. The high weather resistance exposed roof waterproof paint and the preparation method thereof as claimed in claim 1, characterized in that, the paint comprises the following components, by weight, 15 parts of organic silicon resin A, 25 parts of organic silicon resin B, 1 parts of reactive group organic silicon monomer A, 3 parts of reactive group organic silicon monomer B, 1 parts of reactive group organic silicon monomer C, 3 parts of environment-friendly plasticizer, 15.5 parts of ultra-fine heavy calcium, 28.5 parts of ultra-fine light calcium, 5 parts of quartz sand, 0.5 part of defoamer, 1 part of light stabilizer, 0.5 part of pigment, 0.05 part of environment-friendly catalyst and 0.95 part of thickener.
3. The highly weatherable exposed roof waterproof coating according to claim 1, wherein said silicone resin is polyether siloxane modified polymer selected from Dow DOWSIL 3 Additive, Japanese Sandhore HIPRENE XL/AL, GENEISOIL WP1, STP-E35, Wake XL10/GF9, Yingchunggusai 1146, Mitogen A171, Dow Corning Z-6020.
4. The highly weather-resistant exposed roof waterproof coating as claimed in claim 1, wherein the reactive organosilicon monomer is one or more of silane coupling agent, vinyl trimethoxy silane, diamino functional silane, 3-aminopropyl trimethoxy silane, and gamma-methacryloxypropyl trimethoxy silane.
5. The highly weatherable, exposed roof waterproofing coating according to claim 1 wherein the environmentally friendly plasticizer is diisononyl phthalate (DINP).
6. The highly weather-resistant exposed roof waterproof coating as claimed in claim 1, wherein the ultrafine heavy calcium carbonate is a mixture of 800 meshes and 1250 meshes, the ultrafine light calcium carbonate is 1500 meshes of modified low oil absorption powder, and the quartz sand is a mixture of 70-110 meshes and 120 meshes and 180 meshes.
7. The highly weather-resistant exposed roof waterproof coating as claimed in claim 1, wherein the defoamer is one or more of a mineral oil defoamer, a silicone defoamer and a polysiloxane defoamer, the light stabilizer is a liquid heat and light stabilizing system which is a synergistic mixture consisting of IRGANOX1135, TINUVIN571 and TINUVIN765, chemical name is ultraviolet absorber: 20% IRGANOX1135 + 40% TINUVIN571 + 40% TINUVIN 765.
8. The highly weather-resistant exposed roof waterproof coating as claimed in claim 1, wherein the pigment is a mineral inorganic pigment with low oil absorption, and the environmentally-friendly catalyst is one or more of dibutyltin dilaurate, pentamethyldiethylenetriamine and bismuth isooctanoate.
9. The highly weatherable, exposed and waterproof roof coating of claim 1, wherein the thickener is fumed silica.
10. The preparation method of the high-weather-resistance exposed roof waterproof coating as claimed in claims 1 to 10, wherein the preparation method comprises the following steps:
t1, weighing the organic silicon resin A and the organic silicon resin B, putting the organic silicon resin A and the organic silicon resin B into a stirring kettle, and starting low-speed stirring;
t2, weighing the reaction group organosilicon monomers A, B and C and the environment-friendly plasticizer respectively, slowly putting the weighed materials into a stirring kettle while stirring, and stirring the materials at a low speed for 5 minutes;
t3, respectively weighing the superfine heavy calcium carbonate, the superfine light calcium carbonate and the quartz sand, slowly putting into a stirring kettle while stirring, then adding the defoaming agent, and stirring at a high speed for 15 minutes;
t4, adding the weighed light stabilizer, the pigment and the environment-friendly catalyst into a stirring kettle, and regulating the speed to be medium-speed dispersion for 10 minutes;
t5, slowly adding the weighed thickening agent into a dispersion kettle, and stirring at a low speed for 10 minutes;
t6, after all the materials are added, purging a pot cover on the side of the kettle by using nitrogen, closing the pot cover, keeping stirring at a low speed, opening a vacuum system, and removing water and bubbles, wherein the pressure is negative 0.1MPa, and the time is 15 minutes;
and T7, closing the vacuum system, opening a negative pressure valve, detecting the state of the waterproof coating, and filtering, discharging and packaging the fine, full and fruitless state.
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Application publication date: 20210625 |