CN116042042A - Non-cured waterproof coating and preparation method thereof - Google Patents
Non-cured waterproof coating and preparation method thereof Download PDFInfo
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- CN116042042A CN116042042A CN202211653464.3A CN202211653464A CN116042042A CN 116042042 A CN116042042 A CN 116042042A CN 202211653464 A CN202211653464 A CN 202211653464A CN 116042042 A CN116042042 A CN 116042042A
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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
- C09D157/00—Coating compositions based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D157/02—Copolymers of mineral oil hydrocarbons
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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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention discloses a non-curing waterproof paint and a preparation method thereof, wherein the waterproof paint comprises the following components: petroleum resins, process oils, rubber, hyperdispersants, modified organic montmorillonite, aerogel powder and optionally pigments. The waterproof coating disclosed by the invention has the properties of good heat insulation property, weather resistance, light weight (weight reduction), corrosion resistance, stability, environmental friendliness and the like.
Description
Technical Field
The invention belongs to the technical field of waterproof coatings, and particularly relates to a non-cured waterproof coating and a preparation method thereof.
Background
The non-cured rubber asphalt waterproof paint is prepared by taking petroleum asphalt as an important constituent and adding a certain proportion of functional modifier, and has the characteristic of realizing full adhesion effect with base layers made of different materials such as cement, steel plates, glass and the like, and is generally compounded with waterproof coiled materials to form a coiled waterproof system.
Although the non-cured rubber asphalt waterproof paint has become an important waterproof paint, it also has the following problems: (1) The main component of the non-cured rubber asphalt waterproof paint is petroleum asphalt, which needs to be heated in the production and construction processes, asphalt smoke is generated, the surrounding environment is polluted, and the physical health of people is affected; (2) The non-cured rubber asphalt waterproof paint is used as an auxiliary waterproof material, has single function, and can not effectively ensure heat insulation and noise reduction for most roof structures by only one heat insulation layer; (3) The non-cured rubber asphalt waterproof paint has high specific gravity, and the consumption of spraying or knife coating with the thickness of 1mm is about 1.3-1.5kg per square meter, so that the consumption is high; (4) The non-cured rubber asphalt waterproof paint adopts inorganic powder materials such as talcum powder, stone powder, heavy calcium, light calcium, fly ash and the like, and has high density and easy sedimentation; the heat conductivity coefficient is large, and the aging is easy to accelerate under the heat aging effect, namely the aging resistance is poor; (5) The non-cured rubber asphalt waterproof paint adopts inorganic powder materials such as talcum powder, stone powder, heavy calcium, light calcium, fly ash and the like, and is easy to react under the action of acid and alkali, so that the stability of the system is damaged.
Disclosure of Invention
The invention aims to provide a non-curing waterproof coating and a preparation method thereof, so that the prepared waterproof coating has the properties of good heat insulation and heat preservation, weather resistance, light weight (weight reduction), corrosion resistance, stability, environmental protection and the like.
In order to achieve the above object, an aspect of the present invention provides a non-curable waterproof coating material comprising: petroleum resins, process oils, rubber, hyperdispersants, modified organic montmorillonite, aerogel powder and optionally pigments.
According to the present invention, preferably, the waterproof paint comprises, in parts by mass: 80-120 parts of petroleum resin, 120-160 parts of operation oil, 30-60 parts of rubber, 1.5-3 parts of hyper-dispersant, 10-20 parts of modified organic montmorillonite, 60-80 parts of aerogel powder and 0-10 parts of pigment.
According to the waterproof coating disclosed by the invention, asphalt smoke is prevented from being generated in the production and construction processes, and the waterproof coating has an environmental protection significance; meanwhile, compared with asphalt-based non-curing paint, the asphalt-based non-curing paint has the characteristics of heat insulation, noise reduction, low density, good fluidity and wide construction blade coating or spraying area.
Compared with the asphalt-based non-curing waterproof coating, the non-asphalt-based non-curing waterproof coating disclosed by the invention has better initial viscosity and system stability, can be better adhered to a polymer coiled material for use, and does not have the loss of initial viscosity caused by phase separation of light component precipitation.
According to the present invention, preferably, the petroleum resin is C5 petroleum resin and/or C9 petroleum resin produced by a cold polymerization process;
the softening point of the petroleum resin is more than or equal to 120 ℃.
According to the present invention, preferably, the aerogel powder is at least one of silica aerogel powder, graphene oxide aerogel powder, and fiber powder reinforced silica aerogel powder.
In the invention, the density of the aerogel powder is 0.03-0.08g/m, which is 1/30 times of the density of other filling powder, more than 95 percent (volume ratio) of the structure is air, the thermal conductivity is only (0.015+/-0.002 w/m.k), and the aerogel powder has very high surface area and excellent adsorption performance. Meanwhile, the catalyst does not react with acid-base salt, is suitable for different environments, and has stable system and excellent durability. Aerogel powder is added into the non-asphalt-based non-curing waterproof coating to replace traditional mineral powder (talcum powder, heavy calcium carbonate, light calcium carbonate and other mineral filling powder), the aerogel powder is uniformly distributed in the system, and the system is filled with air, so that the unit volume and the mass are reduced, heat radiation conduction is effectively blocked, and meanwhile, the coating is endowed with excellent sound insulation, noise reduction, waterproof and heat insulation performances.
According to the present invention, preferably, the modified organic montmorillonite is a cationic surfactant modified organic montmorillonite.
In the invention, the modified organic montmorillonite is added to improve the lipophilicity and lock the light component, so that the system is stable. The subsequent rubber processing performance is convenient.
According to the present invention, preferably, the hyperdispersant is a polyester-based dispersant.
According to the invention, the hyperdispersant is added to rapidly and uniformly disperse the aerogel powder and each material, so that the system is more uniform and stable.
According to the present invention, preferably, the process oil is paraffin-based process oil and/or naphthenic process oil;
the flash point of the operating oil is more than or equal to 205 ℃.
According to the present invention, preferably, the rubber is at least one of butyl rubber, natural rubber, butadiene rubber, chloroprene rubber and isoprene rubber;
the pigment is at least one of titanium nickel yellow, titanium chrome brown, copper chrome black and iron red.
Another aspect of the present invention provides a method for preparing the waterproof paint described above, the method comprising:
(1) Mixing and granulating the rubber, the aerogel powder and part of the operating oil to obtain rubber particles;
(2) Heating the residual operating oil and the petroleum resin to melt the petroleum resin, and then stirring; thirdly, adding the rubber particles after heating, and stirring; and finally, adding the modified organic montmorillonite, the hyperdispersant and the optional pigment, and stirring to obtain the non-cured waterproof coating.
In the invention, the rubber is banburying, the operation oil is added to open the molecular chain of the rubber, the rubber is filled with the oil, and then the rubber is granulated, so that the rubber is convenient to melt and modify fully and disperse uniformly in the subsequent hot melt modification.
According to the invention, preferably, in the step (1), the banburying is carried out at a temperature of 150-160 ℃ for 45-60min;
in the step (2), the heating temperature is 130-140 ℃; the stirring condition is that stirring is carried out for 20-30min under the condition that the motor frequency is 20-25 HZ;
thirdly, heating to 160-170 ℃, adding the rubber particles, and stirring for 60-90min;
and finally, adding the modified organic montmorillonite, the hyperdispersant and the optional pigment, and stirring for 45-60min to obtain the non-cured waterproof coating.
The technical scheme of the invention has the following beneficial technical effects:
(1) The non-asphalt-based non-curing waterproof paint is prepared from raw materials and is free from asphalt smoke due to the addition of the environment-friendly resin material in the production and construction processes.
(2) The non-asphalt-based non-curing waterproof coating can still have peristaltic self-healing capability at extremely low temperature, can be in a wiredrawing state between a coiled material and a base layer, realizes 100% cohesive failure, fills cracks of the base layer and prevents water leakage.
(3) According to the invention, aerogel powder is used for replacing mineral filling powder materials such as talcum powder, heavy calcium carbonate and light calcium carbonate in the non-asphalt-based non-curing waterproof coating, so that the non-curing waterproof coating has excellent heat insulation and heat preservation properties, weather resistance, light weight (weight reduction), corrosion resistance and sound barrier property. Meanwhile, the non-cured waterproof paint has the advantages of low density and good fluidity, the consumption of spraying or knife coating with the thickness of 1mm is 1.0-1.2kg per square meter, the consumption is small, and the spraying or knife coating area is increased by 3-5 square meters.
(4) Compared with asphalt-based non-cured waterproof paint, the waterproof paint disclosed by the invention has the advantages of stable formula system, no phase separation phenomenon, long storage period and good aging resistance.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention is further illustrated by the following examples:
the modified organic montmorillonite used in the following examples and comparative examples is a cationic surfactant modified organic montmorillonite, specifically a polymer nano organic montmorillonite, purchased from Zhejiang Feng iridescent New Material Co., ltd, with the brand name DK5; the hyper-dispersant is Lubo-super-dispersant SOLSPERSE 8000; the cold polymerized C9 petroleum resin is purchased from the He Material technologies Co., ltd, and the brand is HHP-1204; the silica aerogel powder is purchased from Shenzhen middling technology Co., ltd, and the brand is AG-D aerogel powder; butyl rubber is purchased from the Yanshan petrochemical company under the brand 1751; natural rubber was purchased from ambery and lisis rubber technology limited; the hyper-dispersant is polyester dispersant, and is SOLSPERSE 8000 of Lubrizol;
in the following test items, the method for testing the adhesion performance of the coiled material at 5 ℃ and the non-curing waterproof coating is as follows: (1) cleaning floating sand and ash layers of 200 mm/50 mm cement sample blocks and polishing the floating sand and ash layers; then, the non-cured waterproof paint is scraped on a cement sample block with the thickness of 200mm being 50mm, the scraping thickness of 1mm being 50mm, the scraping area of 75mm being 50mm, and the cement sample block is placed in a low-temperature test box with the temperature of 5 ℃ for 1h;
(2) removing the isolating film from the self-adhesive waterproof coiled material after curing under standard conditions, adhering the self-adhesive surface with the non-curing waterproof coating, and repeatedly pressing for 3 times by using a 2kg pressing roller;
(3) after curing for 20 hours in a low temperature oven at 5 ℃, the coiled material and the cement block were peeled off immediately, and the adhesion effect of the coiled material and the cement block was observed and recorded.
Comparative example 1
This comparative example provides an asphalt-based non-cured waterproof coating.
Raw materials: 70# asphalt (jingbo): 15 parts by mass of 200# asphalt (Beijing bo): 50 parts by mass of SBR (Shandong chemical technology Co., ltd.): 8 parts by mass of modified powder (purchased from high-energy environment and with the brand name of PMA-1086): 7 parts by mass, 1000 mesh talcum powder: 20 parts by mass;
(2) the preparation process comprises the following steps:
1) Firstly, sequentially adding 70# asphalt and 200# asphalt into a reaction kettle, and starting stirring for 20-30HZ for 10min. Then heating to 150-160 ℃;
2) Adding SBR, adjusting the stirring frequency to 50HZ after the addition is finished, stirring at a high speed for 15min, then starting a colloid mill for self-circulation, grinding for 50-60min, stopping the colloid mill after no particles exist, and keeping the whole process temperature at not more than 190 ℃;
3) Adding the modified powder, stirring at 50HZ for 15min, then starting a colloid mill for self-circulation, grinding for 50-60min, stopping the colloid mill after no particles exist, and keeping the whole process temperature at 190 ℃;
4) Adding talcum powder, stirring at 50HZ, and stirring for 1h;
5) And after the control is qualified, transferring to a vacuum stirring kettle with the frequency of 10HZ, defoaming, cooling to 130-150 ℃ and filling.
Example 1
Raw materials: 100kg of cold polymerization C9 petroleum resin (softening point 130+/-5 ℃ C., gardner color number 3.1-4), 140kg of paraffin-based operating oil (flash point is more than or equal to 205 ℃) 140kg of butyl rubber, 2kg of hyperdispersant, 10kg of titanium chrome brown, 15kg of modified organic montmorillonite and 65kg of silica aerogel powder.
The preparation process comprises the following steps:
(1) 45kg of butyl rubber is added into an internal mixer, and the temperature is set at 150 ℃;
(2) adding 65kg of silica aerogel powder and 50kg of paraffin-based operating oil, and banburying at 160 ℃ for 60min to ensure that oil is fully filled among butyl rubber molecular chains;
(3) granulating the banburying butyl rubber (particle size of 2-3 mm), and cooling for later use;
(4) adding the rest 90kg of paraffin-based operation oil and 100kg of cold polymerization C5 petroleum resin into a small vertical kettle, heating to 130, and stirring for 30min at 25HZ by starting a motor until the resin is melted;
(5) heating to 160 ℃, slowly adding the banburying butyl rubber particles, stirring for 90min, and keeping the temperature at 180 ℃;
(6) 15kg of modified organic montmorillonite, 10kg of titanium chrome brown pigment and 2kg of hyperdispersant are added in sequence and stirred for 60min;
(7) cooling to 140 ℃, and discharging.
The waterproof coating prepared in example 1 was tested for performance according to JC/T2428-2017 standard, see in particular Table 1.
TABLE 1
The waterproof paint prepared in example 1 was subjected to construction application performance test, and the specific results are shown in table 2; wherein, the liquid crystal display device comprises a liquid crystal display device,
TABLE 2
Example 2
Raw materials: 90kg of cold polymerization C9 petroleum resin (softening point 140+/-5 ℃ C., gardner color number 3.1-4), 155kg of paraffin-based operating oil (flash point is more than or equal to 205 ℃ C.), 50kg of natural rubber, 2kg of hyperdispersant, 8kg of iron oxide red, 15kg of modified organic montmorillonite and 80kg of silica aerogel powder.
The preparation process comprises the following steps:
(1) adding 50kg of natural rubber into an internal mixer, and setting the temperature at 150 ℃;
(2) adding 80kg of silica aerogel powder and 50kg of paraffin-based operating oil, and banburying at 160 ℃ for 60min to ensure that oil is fully filled between natural rubber molecular chains;
(3) granulating the banburying natural rubber (particle size of 2-3 mm), and cooling for later use;
(4) adding the rest 105kg of paraffin-based operating oil and 90kg of cold polymerized C9 petroleum resin into a small vertical kettle, heating to 130 ℃, and stirring for 30min at the frequency of 25HZ after the resin is melted;
(5) heating to 160 ℃, slowly adding banburying natural rubber particles, stirring for 90min, and keeping the temperature at 180 ℃;
(6) 15kg of modified organic montmorillonite, 8kg of iron oxide red pigment and 2kg of hyperdispersant are added in sequence and stirred for 60min;
(7) cooling to 140 ℃, and discharging.
The waterproof coating prepared in example 2 was tested for performance according to JC/T2428-2017 standard, see in particular Table 3.
TABLE 3 Table 3
The waterproof paint prepared in example 2 was subjected to a construction application performance test, and is specifically shown in table 4.
TABLE 4 Table 4
Example 3
Raw materials: 100kg of cold polymerization C9 petroleum resin (softening point 130+/-5 ℃ C., gardner color number 3.1-4), 150kg of cycloalkyl operation oil (flash point is more than or equal to 205 ℃) and 55kg of butyl rubber, 2kg of hyperdispersant, 10kg of titanium chrome brown, 15kg of modified organic montmorillonite and 65kg of silica aerogel powder.
The preparation process comprises the following steps:
(1) 55kg of butyl rubber is added into an internal mixer, and the temperature is set at 160 ℃;
(2) adding 65kg of silicon dioxide aerogel powder and 50kg of naphthenic base operation oil, and banburying at 160 ℃ for 60min to ensure that oil is fully filled among molecular chains of butyl rubber;
(3) granulating the banburying butyl rubber (particle size of 2-3 mm), and cooling for later use;
(4) adding the rest 100kg of cycloalkyl operation oil and 100kg of cold polymerization C5 petroleum resin into a small vertical kettle, heating to 140 ℃, starting a motor for stirring until the resin is melted, and stirring for 20min at the frequency of 25 HZ;
(5) heating to 160 ℃, slowly adding the banburying butyl rubber particles, stirring for 60min, and keeping the temperature at not more than 180 ℃;
(6) 15kg of modified organic montmorillonite, 10kg of titanium chrome brown pigment and 2kg of hyperdispersant are added in sequence and stirred for 45min;
(7) cooling to 130 ℃, and discharging.
The waterproof coating prepared in example 3 was tested for performance according to JC/T2428-2017 standard, see in particular Table 5.
TABLE 5
The waterproof paint prepared in example 3 was subjected to a construction application performance test, and is specifically shown in table 6.
TABLE 6
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. A non-curable waterproof coating material, characterized in that the waterproof coating material comprises: petroleum resins, process oils, rubber, hyperdispersants, modified organic montmorillonite, aerogel powder and optionally pigments.
2. The waterproof coating material according to claim 1, wherein the waterproof coating material comprises, in parts by mass: 80-120 parts of petroleum resin, 120-160 parts of operation oil, 30-60 parts of rubber, 1.5-3 parts of hyper-dispersant, 10-20 parts of modified organic montmorillonite, 60-80 parts of aerogel powder and 0-10 parts of pigment.
3. The waterproof coating according to claim 1 or 2, wherein the petroleum resin is a C5 petroleum resin and/or a C9 petroleum resin produced by a cold polymerization process;
the softening point of the petroleum resin is more than or equal to 120 ℃.
4. The waterproof coating material according to claim 1 or 2, wherein the aerogel powder is at least one of silica aerogel powder, graphene oxide aerogel powder, and fiber powder reinforced silica aerogel powder.
5. The waterproof coating according to claim 1 or 2, wherein the modified organic montmorillonite is a cationic surfactant modified organic montmorillonite.
6. The waterproof coating material according to claim 1 or 2, wherein the hyper-dispersant is a polyester-based dispersant.
7. The waterproof coating material according to claim 1 or 2, wherein the process oil is a paraffin-based process oil and/or a cycloalkyl process oil;
the flash point of the operating oil is more than or equal to 205 ℃.
8. The waterproof coating according to claim 1 or 2, wherein the rubber is at least one of butyl rubber, natural rubber, butadiene rubber, neoprene rubber and isoprene rubber;
the pigment is at least one of titanium nickel yellow, titanium chrome brown, copper chrome black and iron red.
9. A method for producing the waterproof paint according to any one of claims 1 to 8, characterized in that the method comprises:
(1) Mixing and granulating the rubber, the aerogel powder and part of the operating oil to obtain rubber particles;
(2) Heating the residual operating oil and the petroleum resin to melt the petroleum resin, and then stirring; thirdly, adding the rubber particles after heating, and stirring; and finally, adding the modified organic montmorillonite, the hyperdispersant and the optional pigment, and stirring to obtain the non-cured waterproof coating.
10. The preparation method according to claim 9, wherein in the step (1), the banburying is carried out at a temperature of 150-160 ℃ for 45-60min;
in the step (2), the heating temperature is 130-140 ℃; the stirring condition is that stirring is carried out for 20-30min under the condition that the motor frequency is 20-25 HZ;
thirdly, heating to 160-170 ℃, adding the rubber particles, and stirring for 60-90min;
and finally, adding the modified organic montmorillonite, the hyperdispersant and the optional pigment, and stirring for 45-60min to obtain the non-cured waterproof coating.
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| CN102120912A (en) * | 2011-03-12 | 2011-07-13 | 广东三和化工科技有限公司 | Elastic fuzz polyurethane paint |
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| CN112760037A (en) * | 2020-12-30 | 2021-05-07 | 上海三棵树防水技术有限公司 | Non-asphalt-based non-cured rubber waterproof coating and preparation method thereof |
| CN112852300A (en) * | 2020-12-31 | 2021-05-28 | 江苏纽克莱涂料有限公司 | Aerogel thermal insulation coating and preparation method thereof |
| CN115418149A (en) * | 2022-08-01 | 2022-12-02 | 北京东方雨虹防水技术股份有限公司 | Non-asphalt-based non-cured waterproof coating and preparation method thereof |
-
2022
- 2022-12-21 CN CN202211653464.3A patent/CN116042042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120912A (en) * | 2011-03-12 | 2011-07-13 | 广东三和化工科技有限公司 | Elastic fuzz polyurethane paint |
| CN111518475A (en) * | 2020-06-02 | 2020-08-11 | 岳阳市科兴防水材料有限公司 | Smokeless non-cured rubber waterproof coating and preparation method thereof |
| CN112760037A (en) * | 2020-12-30 | 2021-05-07 | 上海三棵树防水技术有限公司 | Non-asphalt-based non-cured rubber waterproof coating and preparation method thereof |
| CN112852300A (en) * | 2020-12-31 | 2021-05-28 | 江苏纽克莱涂料有限公司 | Aerogel thermal insulation coating and preparation method thereof |
| CN115418149A (en) * | 2022-08-01 | 2022-12-02 | 北京东方雨虹防水技术股份有限公司 | Non-asphalt-based non-cured waterproof coating and preparation method thereof |
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