CN114196290B - Industrial water-based paint coating and application method thereof - Google Patents
Industrial water-based paint coating and application method thereof Download PDFInfo
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- CN114196290B CN114196290B CN202111641330.5A CN202111641330A CN114196290B CN 114196290 B CN114196290 B CN 114196290B CN 202111641330 A CN202111641330 A CN 202111641330A CN 114196290 B CN114196290 B CN 114196290B
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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Abstract
The invention discloses coating of an industrial water-based paint, which comprises a water-based epoxy primer and a water-based aliphatic polyurethane finish; the water-based epoxy primer comprises the following components: 30-40 parts of water-based epoxy resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 35-45 parts of filler, 3-10 parts of acrylic resin, 0.1-0.5 part of flatting agent, 0.1-0.5 part of surfactant, 0.3-0.6 part of low-shear-force thickening agent and 0.1-0.3 part of medium-shear-force thickening agent; the water-based aliphatic polyurethane finish paint comprises the following components: 40-50 parts of hydroxy acrylic acid secondary dispersion resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 15-25 parts of filler, 10-20 parts of hydroxy acrylic acid primary dispersion resin, 0.1-0.5 part of wetting and leveling agent, 0.1-0.5 part of surfactant, 0.2-0.5 part of low-shear-force thickening agent and 0.1-0.3 part of medium-shear-force thickening agent. The industrial water-based paint coating provided by the invention can solve the problem of environmental pollution emission and solve the problem of safety and privacy; the performance can also meet the protection requirement of mechanical equipment in the field of heavy corrosion protection.
Description
Technical Field
The invention relates to industrial water-based paint coating and a using method thereof, belonging to the technical field of water-based paint.
Background
Most of mechanical equipment is made of metal, so that the surface of the mechanical equipment needs to be coated with anticorrosive paint to avoid corroding the mechanical equipment. With the increasing strictness of the requirements on environmental protection, safety and occupational health, the application of the water-based industrial paint is inevitable. However, most of the aqueous industrial anticorrosive coatings have poor coating performance, are difficult to be made into high-solid type, have serious sagging phenomenon during spraying, have poor leveling property and thin film thickness of a single coating, can be quickly worn and peeled off if being used on mechanical equipment, and cannot well play a role in protecting the mechanical equipment. Therefore, the traditional oily industrial epoxy coating and polyurethane coating which are toxic, harmful, flammable and explosive and have serious standard-exceeding VOC are adopted in the anticorrosion and antirust paint on equipment in numerous heavy anticorrosion fields (anticorrosion grades C4 and C5).
Disclosure of Invention
The invention provides an industrial water-based paint coating, which can solve the problem of environmental pollution emission and potential safety hazard; the performance can also meet the protection requirements of the coating standards of C4 and C5.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an industrial water-based paint coating comprises an intermediate paint, a water-based epoxy primer and a water-based aliphatic polyurethane finish; the water-based epoxy primer comprises the following components: 30-40 parts of water-based epoxy resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 35-45 parts of filler, 3-10 parts of acrylic resin, 0.1-0.5 part of wetting and leveling agent, 0.1-0.5 part of surfactant, 0.3-0.6 part of low-shear-force thickening agent and 0.1-0.3 part of medium-shear-force thickening agent; the waterborne aliphatic polyurethane finish paint comprises the following components: by weight, 40-50 parts of hydroxy acrylic acid secondary dispersion resin, 10-30 parts of deionized water, 1-2 parts of polyacrylate dispersant, 0.1-0.3 part of defoaming agent, 15-25 parts of filler, 10-20 parts of hydroxy acrylic acid primary dispersion resin, 0.1-0.5 part of wetting and leveling agent, 0.1-0.5 part of surfactant and 0.2-0.5 part of polyurethane low-shear thickening agent; 0.1-0.3 of shear thickening agent in polyurethane. An economic wetting and leveling agent is selected to reduce the surface tension of a paint film and improve the lipophilicity of the paint film, so that a good film forming and adhering effect is achieved; meanwhile, the proportions of the components are reasonably selected, and the polyurethane thickening agent with low shearing force and medium shearing force is matched, so that the quick-drying property of a paint film can be effectively improved, and the sagging resistance of the primer can be effectively adjusted.
Preferably, the dispersant is polyacrylate, and the defoaming agent is a non-silicon polymeric defoaming agent or an acetylene glycol defoaming agent.
Preferably, the low shear thickener is a polyurethane low shear thickener; the medium shear force thickener is a polyurethane medium shear thickener.
Preferably, the water-based epoxy primer also comprises 0.1-0.5 part of metal catalyst and 1-3 parts of antirust agent; the water-based aliphatic polyurethane finish paint also comprises 0.1-0.5 of metal catalyst and 0.5-1 of modified compound inorganic anti-settling thixotropic agent.
Preferably, the antirust agent comprises 30-40 parts of distilled water, 2-5 parts of metal inorganic chelating agent, 1-5 parts of alkynediol composite surfactant, 1-5 parts of phosphate, 5-10 parts of ethanolamine, 10-30 parts of dicyclohexylamine and 1-3 parts of metal catalyst, wherein the modified phosphate can penetrate into the metal surface to generate passivation effect so as to prevent flash rust phenomenon of a paint film substance in a short time.
Preferably, the metal catalyst is one or more of metal cobalt, calcium, iron and manganese. The polyurethane thickener with low and medium shearing force can further improve the quick drying property of a paint film and effectively adjust the sagging resistance of the primer under the initiation action of a metal catalyst with a certain proportion.
An application method of industrial water-based paint coating comprises the following steps of: 1, spraying, wherein the mass ratio of the waterborne aliphatic polyurethane finish paint to the finish paint curing agent is (5-7): 1, spraying.
Further, the primer curing agent is a non-ionic aqueous secondary dispersion curing agent of a polyamide adduct; the finishing paint curing agent is a waterborne aliphatic isocyanate curing agent.
According to the invention, the components are reasonably selected in proportion, and the polyurethane thickening agent with low shearing force and medium shearing force is matched, so that the quick drying property of a paint film is improved, and the high-film-thickness sagging resistance of the primer is effectively adjusted.
The water-based epoxy primer and the water-based aliphatic polyurethane finish coat are matched and sleeved on the surface of a metal base material for spraying, a composite coating combining the primer and the finish coat has strong adhesive force, and the adhesive force of the water-based epoxy polyurethane coating is more than 5MPa compared with that of an oily epoxy polyurethane coating. Meanwhile, the water-based aliphatic polyurethane finish paint disclosed by the invention has the miliaria resistance, can form good weather resistance, is high in gloss, and is full and fresh in paint film appearance. The performance index of the water-based paint coating is Q/CNF70-2021, and the technical parameters of the index are all higher than the existing chemical industry standard: HG/T4759-2014; HG/T4761-2014.
On one hand, the water-based paint coating can meet the paint film thickness of one-time spraying because the primer has high solid, so that repeated spraying is not needed, and the one-time spraying does not sag, and simultaneously has excellent rust resistance and corrosion resistance; on the other hand, the finish paint can meet the requirements of no prickly heat on appearance, no sagging after one-time spraying, high gloss, plump and fresh paint film, and has an auxiliary effect on the anticorrosion and antirust effects of the primer. The water-based paint coating ensures the anti-corrosion and anti-rust effects and simultaneously gives consideration to the appearance effect.
Detailed Description
In order that the nature of the invention may be better understood, the invention will now be further described with reference to specific examples.
The industrial water-based paint coating comprises a water-based epoxy primer, an intermediate paint and a water-based aliphatic polyurethane finish paint, and is suitable for spraying equipment in the field of industrial heavy corrosion protection (C4 and C5 standards).
Example 1
The water-based epoxy primer takes water as a dispersion medium, and the mass ratio of the component A to the component B is 7.5-9: 1, and then mixing the mixture to be used, thereby crosslinking and curing the mixture to form a film. The component B is a non-ionic water-based secondary dispersion curing agent of polyamide addition compound.
The component A comprises the following raw material components: 30-40 parts of water-based epoxy resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 35-45 parts of filler, 3-10 parts of acrylic resin, 0.1-0.5 part of wetting and leveling agent, 0.1-0.5 part of surfactant, 0.3-0.6 part of low-shear-force thickening agent and 0.1-0.3 part of medium-shear-force thickening agent.
In a preferred embodiment of the present invention, the aqueous epoxy resin is a solid bisphenol A epoxy resin secondary dispersion modified with a solid 901-type epoxy resin. The dispersant is polyacrylate, and the defoaming agent is non-silicon polymeric defoaming agent or acetylene glycol defoaming agent. The low-shear thickening agent is a polyurethane low-shear thickening agent; the medium shear force thickener is a polyurethane medium shear thickener.
As a preferable preference of the invention, the water-based epoxy primer further comprises 0.1-0.5 part of metal catalyst and 1-3 parts of antirust agent. The metal catalyst is one or more of metal cobalt, calcium, iron and manganese.
The antirust agent comprises 30-40 parts of distilled water, 2-5 parts of metal inorganic chelating agent, 1-5 parts of alkynediol composite surfactant, 1-5 parts of phosphate, 5-10 parts of ethanolamine, 10-30 parts of dicyclohexylamine and 1-3 parts of the metal catalyst. The pH of the rust inhibitor is about 10-11.
The antirust agent is added into the water-based epoxy primer, and the modified phosphate can penetrate through the metal surface to generate passivation effect, so that the flash rust phenomenon of a paint film substance in a short time can be prevented; an economic wetting and leveling agent is selected to reduce the surface tension of a paint film and improve the lipophilicity of the paint film, so that a good film forming and adhering effect is achieved; meanwhile, the proportions of the components are reasonably selected, the low-shearing force polyurethane thickening agent and the medium-shearing force polyurethane thickening agent are matched, and under the initiation action of a metal catalyst with a certain proportion, the quick drying property of a paint film can be improved, and the sagging resistance of the high-film thickness of the primer can be effectively adjusted.
The preparation method of the water-based epoxy primer comprises the following steps:
adding deionized water into a stirring cylinder according to the weight ratio of the raw material components, and adding a dispersing agent, a defoaming agent, modified epoxy resin, pigment and an anticorrosive filler under uniform-speed stirring; then dispersing and stirring at a high speed for 20 minutes, transferring into a sand mill for dispersing and grinding for about 60 minutes to ensure that the fineness of the material is lower than 35 um; and finally, transferring the mixture into a paint mixing kettle, adding acrylic resin, a metal catalyst, an antirust agent, a surfactant and a wetting leveling agent while stirring at a uniform speed, and adding a polyurethane low-shearing-force thickening agent and a polyurethane medium-shearing-force thickening agent after a pH regulator is adjusted to 7-8 so that the viscosity of the product reaches 11-14MPa.s (3# rotor, 6r/min), thereby obtaining the water-based epoxy primer.
Example 2
The waterborne aliphatic polyurethane finish paint of the invention takes water as a dispersion medium, and the hydroxyl acrylic acid primary dispersion and the hydroxyl acrylic acid secondary dispersion are mixed and mixed with a waterborne aliphatic isocyanate curing agent according to the ratio of 5-7: 1, crosslinking and curing to form a paint film.
The waterborne aliphatic polyurethane finish paint comprises the following components: 10-20 parts of hydroxy acrylic acid primary dispersion resin, 40-50 parts of hydroxy acrylic acid secondary dispersion resin, 10-30 parts of deionized water, 1-2 parts of polyacrylate dispersant, 0.1-0.3 part of non-silicon polymeric defoaming agent, 15-25 parts of filler, 0.1-0.5 part of wetting and leveling agent, 0.1-0.5 part of surfactant and 0.2-0.5 part of polyurethane low-shear thickening agent; 0.1-0.3 of shear force thickening agent in polyurethane.
As a preferable selection of the invention, the waterborne aliphatic polyurethane finish paint also comprises 0.1-0.5 of metal catalyst and 0.5-1 of modified compound inorganic anti-settling thixotropic agent. The metal catalyst is a mixture of one or more of metal cobalt, calcium, iron and manganese and deionized water.
The preparation method of the waterborne aliphatic polyurethane finish paint comprises the following steps:
adding deionized water into a stirring cylinder according to the weight parts of the raw material components, and adding a dispersing agent, an antifoaming agent, a hydroxyacrylic acid secondary dispersion resin, a pigment filler and a modified composite inorganic anti-settling thixotropic agent under uniform stirring; then dispersing and stirring at a high speed for 30 minutes, transferring into a sand mill for about 80 minutes for dispersing and grinding, and enabling the fineness of the material to be lower than 25 um; and finally, transferring the mixture into a paint mixing kettle, adding hydroxyl acrylic acid primary dispersion resin, a metal catalyst and a surfactant wetting leveling agent while stirring at a uniform speed, and adding a polyurethane low-shear thickening agent and a polyurethane medium-shear thickening agent to enable the viscosity of the product to be 5-10MPa.s (3# rotor, 6r/min), thereby obtaining the water-based aliphatic polyurethane finish paint.
Example 3
According to the components and the method in the embodiment 1 and the embodiment 2, a water-based epoxy primer and a water-based aliphatic polyurethane finish paint are respectively prepared.
Water-based epoxy primer: the water-based epoxy resin paint comprises 38 parts of water-based epoxy resin, 15 parts of deionized water, 1.5 parts of a dispersing agent, 0.2 part of a defoaming agent, 38 parts of a filler, 8 parts of acrylic resin, 0.3 part of a wetting and leveling agent, 0.3 part of a surfactant, 0.1 part of a metal catalyst, 2 parts of an antirust agent, 0.5 part of a low-shear-force thickening agent and 0.2 part of a medium-shear-force thickening agent.
Water-based aliphatic polyurethane finish: 50 parts of hydroxy acrylic acid secondary dispersion resin, 10 parts of deionized water, 2 parts of polyacrylate dispersant, 0.3 part of non-silicon polymeric defoaming agent, 20 parts of filler, 18 parts of hydroxy acrylic acid primary dispersion resin, 0.1-0.5 part of wetting and leveling agent, 0.5 part of surfactant, 0.3 part of metal catalyst, 1 part of modified composite inorganic anti-settling thixotropic agent, 0.2 part of polyurethane low-shear-force thickener and 0.1 part of polyurethane medium-shear-force thickener.
8-10 parts of non-ionic polyamide addition compound aqueous secondary dispersion, wherein the mass ratio of the aqueous epoxy primer to the curing agent is (9): and 1, spraying a primer. According to 100 parts of waterborne aliphatic isocyanate curing agent, the mass ratio of waterborne aliphatic polyurethane finish paint to waterborne aliphatic isocyanate curing agent is 6: and 1, spraying finish paint. And after the coating and overall spraying are finished, carrying out corresponding detection.
The industrial water-based paint coating has the advantages that in the actual use process, the drying time is fast, the technical requirements in the heavy-duty anticorrosion field are completely met, and the environmental protection performance reaches the standard:
(1) water-based epoxy primer: the solid content is high and can reach 64.1 percent; the water resistance and the salt water resistance are good and can reach 240 h; adhesion (MPa): 11; the salt spray resistance is good and can reach 720 h; the VOC content is very low and is 80 g/L; benzene series (mg/kg) such as benzene and xylene: not detected; formaldehyde, mercury, chromium, lead, cadmium (mg/kg): it was not detected.
(2) Aqueous industrial polyurethane coating: the glossiness of 60 degrees is more than or equal to 85, and the product is qualified.
(3) And (3) composite coating: the water resistance and the salt water resistance are good and can reach 240 h; adhesion (MPa): average 16.12 MPa; the salt spray resistance is good, and the salt spray resistance is qualified when being more than or equal to 1000 h; the condensate water resistance is not less than 480h and is qualified; the aging resistance is qualified when the time is more than or equal to 1000 hours; the VOC content of the product is very low and is 50 g/L; benzene series (mg/kg) such as benzene and xylene: not detected; formaldehyde, mercury, chromium, lead, cadmium (mg/kg): it was not detected.
The method comprises the following steps of anti-sag measurement:
1. the actual measured anti-sagging technical indexes of the water-based epoxy primer are shown in the table 1:
TABLE 1
2. The actually measured anti-sagging technical indexes of the waterborne aliphatic polyurethane finish paint are shown in table 2:
TABLE 2
According to tables 1 and 2, the sag resistance of the waterborne epoxy coating is more than or equal to 475 microns, and the nonvolatile content (solid content) of the waterborne epoxy coating is more than or equal to 60 percent, while the sag resistance of the waterborne epoxy coating in the prior art is about 225 microns, and the nonvolatile content of the waterborne epoxy coating is about 50 percent; the anti-sagging property of the water-based aliphatic polyurethane finish paint is more than or equal to 475 mu m, while the anti-sagging property of the existing water-based polyurethane paint is mostly about 175 mu m. The anti-sagging performance of the water-based epoxy primer and the water-based aliphatic polyurethane finish paint is superior to that of other water-based primers and finish paints in the prior art.
And secondly, testing the overall adhesion (pull open method) of coating.
Adhesion (pull open method) test standard ISO12944-1998, test conditions temperature/humidity: 7-15 ℃/85%, test data is shown in table 3:
TABLE 3
As can be seen from Table 3, the water-based paint coating of the invention has excellent adhesion, and the average adhesion of different paint film thicknesses can reach 16.12 MPa.
And thirdly, testing the salt spray resistance of the coating.
And (3) testing conditions are as follows: 5% NaCL, pH: 6.5-7.2, and the temperature of the spray chamber is 35 +/-2 ℃. Actually measuring salt spray: and 1008 h.
The salt spray value of the existing water-based paint coating is about 500h, and the water-based paint coating has excellent corrosion resistance and rust resistance and can meet the requirements of corrosion resistance and rust resistance on equipment in the field of heavy corrosion resistance.
The water-based epoxy primer and the water-based aliphatic polyurethane finish paint are matched and sleeved on the surface of a metal base material for spraying, and a composite coating combining the primer and the finish paint has strong adhesive force. Compared with the oily epoxy polyurethane coating, the adhesive force of the waterborne epoxy polyurethane coating is more than 5 MPa. Meanwhile, the water-based aliphatic polyurethane finish paint has miliaria resistance, can form good weather resistance, has high gloss, and is full and fresh in paint film appearance. The performance index of the water-based paint coating is Q/CNF70-2021, and the technical parameters of the index are all higher than the existing chemical industry standard: HG/T4759-2014; HG/T4761-2014.
On one hand, the water-based paint coating can meet the paint film thickness of one-time spraying because the primer has high solid and can form high film thickness, and the one-time spraying does not sag and has excellent rust resistance and corrosion resistance; on the other hand, the finish paint can meet the requirements of no miliaria in appearance, no sagging after one-time spraying, high gloss, plump and fresh paint film and has an auxiliary effect on the anticorrosion and antirust effects of the primer. The water-based paint coating ensures the anticorrosive and antirust effects and simultaneously gives consideration to the appearance effect.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (8)
1. An industrial water-based paint coating is characterized in that: comprises a water-based epoxy primer and a water-based aliphatic polyurethane finish;
the water-based epoxy primer comprises the following components: 30-40 parts of water-based epoxy resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 35-45 parts of filler, 3-10 parts of acrylic resin, 0.1-0.5 part of flatting agent, 0.1-0.5 part of surfactant, 0.3-0.6 part of low-shear-force thickening agent and 0.1-0.3 part of medium-shear-force thickening agent;
the water-based aliphatic polyurethane finish paint comprises the following components: 10-20 parts of hydroxy acrylic acid primary dispersion resin, 40-50 parts of hydroxy acrylic acid secondary dispersion resin, 10-30 parts of deionized water, 1-2 parts of dispersing agent, 0.1-0.3 part of defoaming agent, 15-25 parts of filler, 0.1-0.5 part of flatting agent, 0.1-0.5 part of surfactant, 0.2-0.5 part of low-shear thickening agent and 0.1-0.3 part of medium-shear thickening agent;
the low-shear-force thickener is a polyurethane low-shear-force thickener; the medium shear force thickener is a polyurethane medium shear force thickener.
2. The industrial water-based paint coating according to claim 1, characterized in that: the water-based epoxy resin is a non-ionic water-based secondary dispersion of solid bisphenol A epoxy resin modified by solid 901-type epoxy resin.
3. The industrial water-based paint coating according to claim 1, characterized in that: the dispersing agent is polyacrylate, and the defoaming agent is a non-silicon polymerization type defoaming agent or an acetylene glycol type defoaming agent.
4. The industrial water-based paint coating according to claim 1, characterized in that: the water-based epoxy primer also comprises 0.1-0.5 part of metal catalyst and 1-3 parts of antirust agent; the water-based aliphatic polyurethane finish paint also comprises 0.1-0.5 part of metal catalyst and 0.5-1 part of modified composite inorganic anti-settling thixotropic agent.
5. The industrial water-based paint coating according to claim 4, characterized in that: the antirust agent comprises, by weight, 30-40 parts of distilled water, 2-5 parts of a metal inorganic chelating agent, 1-5 parts of an alkynediol composite surfactant, 1-5 parts of phosphate, 5-10 parts of ethanolamine, 10-30 parts of dicyclohexylamine and 1-3 parts of a metal catalyst.
6. The industrial water-based paint coating according to claim 4 or 5, characterized in that: the metal catalyst is one or more of metal cobalt, calcium, iron and manganese.
7. The application method of the industrial water-based paint coating is characterized by comprising the following steps: adopting a primer and a primer curing agent in a mass ratio of 7.5-9: 1, spraying, wherein the mass ratio of the finish paint to the finish paint curing agent is 5-7: 1, spraying; the primer is the water-based epoxy primer in the claim 1, and the finish coat is the water-based aliphatic polyurethane finish coat in the claim 1.
8. The method of using the industrial water-based paint coating according to claim 7, characterized in that: the primer curing agent is a non-ionic aqueous secondary dispersion curing agent of a polyamide adduct; the finish paint curing agent is a waterborne aliphatic isocyanate curing agent.
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| CN115368765A (en) * | 2022-05-30 | 2022-11-22 | 东方电气集团东方锅炉股份有限公司 | Low-surface-treatment water-based environment-friendly coating and preparation method thereof |
| CN115141532B (en) * | 2022-08-17 | 2023-04-25 | 广州市雨田实业有限公司 | Low-VOC safe and environment-friendly water-based paint and preparation method thereof |
| CN116179062A (en) * | 2022-12-08 | 2023-05-30 | 成都展辰涂料有限公司 | Water-based antibacterial bi-component clean-surface wood material and manufacturing method thereof |
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| CN103436136B (en) * | 2013-07-24 | 2016-04-20 | 广州擎天材料科技有限公司 | Waterborne anti-corrosive primer for the application of crane outside surface of a kind of ambient temperature curable and preparation method thereof |
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