CN104559731B - A kind of waterproof paint composition - Google Patents
A kind of waterproof paint composition Download PDFInfo
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- CN104559731B CN104559731B CN201510078136.9A CN201510078136A CN104559731B CN 104559731 B CN104559731 B CN 104559731B CN 201510078136 A CN201510078136 A CN 201510078136A CN 104559731 B CN104559731 B CN 104559731B
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- diphenylmethane diisocyanate
- polyacrylate dispersion
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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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
- C08F259/08—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The invention provides a kind of waterproof paint composition, this coating composition comprises polyacrylate dispersion 15 parts, modified diphenylmethane diisocyanate 16 parts, alkyd resin 15 parts, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts, wherein using polyacrylate dispersion, modified diphenylmethane diisocyanate and alkyd resin as the film forming matter of coating, is effectively increased the hydrophobicity of film, hardness and service life.
Description
Technical field
The present invention relates to a kind of waterproof paint composition.
Background technology
Along with China's infrastructure construction increases, railway, highway, city underground etc. are built in a large number, and waterproofing work amount is huge.In these work, polyurethane water-proof paint is the most commonly used water-repellent paint.
On April 5th, 2007, the suggestion that science and technology department of the Ministry of Railways is reflected during construction waterproof layer according to the applicable cases of ballastless track waterproof layer of bridge, up-to-date experimental study and current unit in charge of construction, to Line for Passenger Transportation, the water-repellent paint especially used on high speed passenger dedicated railway is had higher requirement, wherein painting film strength and fracture elongation are proposed higher standard, and most water-repellent paints the most on the market are all extremely difficult to this requirement.
There is a lot of problem in usual pure methyl diphenylene diisocyanate during using, is solid-state the most at normal temperatures, also needs to heat and dissolve during construction；At room temperature being easy to self-polymeric reaction, react very fast, difficult operation, difficult storage, therefore with regard to current technology level, pure methyl diphenylene diisocyanate is difficult to replace toluene di-isocyanate(TDI) completely becomes the raw materials for production of water-repellent paint.On the basis of existing technology, the further water resistance improving coating is still and is currently needed for solving the technical problem that.
Summary of the invention
For coating waterproofing, the technical problem of intensity deficiency in prior art, the invention provides the coating that a kind of water proofing property is excellent, this coating employs specific composition and proportioning, wherein using polyacrylate dispersion, modified diphenylmethane diisocyanate and alkyd resin as the film forming matter of coating, it is effectively increased the hydrophobicity of film, hardness and service life.
The present invention adopts the following technical scheme that and solves above-mentioned technical problem:
A kind of waterproof paint composition, this coating composition comprises the component of following parts by weight:
Polyacrylate dispersion 15 parts, modified diphenylmethane diisocyanate 16 parts, alkyd resin 15 parts, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts；
Described polyacrylate dispersion is adopted and is prepared with the following method: emulsifying agent, distilled water and initiator is mixed, dispersed with stirring post-heating to 80 DEG C, reacts 1 hour, obtain emulsion standby；Kynoar, methyl methacrylate and ethyl acrylate are mixed, stirs 1 hour, ultrasonic disperse 20 minutes, then feed the mixture in above-mentioned emulsion, then add initiator, isothermal reaction 2 hours at 80 DEG C, it is thus achieved that polyacrylate dispersion；
Described modified diphenylmethane diisocyanate is adopted and is prepared with the following method: take 4; 4 '-methyl diphenylene diisocyanate, methyl acetate and antioxidant 1010 add in reaction vessel; under nitrogen atmosphere protective condition; it is warming up to 70 DEG C; add three-(dimethylamino methyl) phenol; isothermal reaction 1 hour, then adds Benzenecarbonyl chloride., obtains modified diphenylmethane diisocyanate.
The consumption of the initiator in the preparation process of described polyacrylate dispersion accounts for the 3wt% of emulsifying agent weight.
In the preparation process of described modified diphenylmethane diisocyanate, the consumption of three-(dimethylamino methyl) phenol accounts for the 2wt% of 4,4 '-methyl diphenylene diisocyanate weight.
Beneficial effects of the present invention:
After traditional methyl diphenylene diisocyanate type urethane coating sprays paint, crosslink density is low, coating hardness is low, rate of drying is slow, the application use polyreaction be easily controlled 4,4 '-methyl diphenylene diisocyanate is raw material, reacted acquisition modified diphenylmethane diisocyanate, use it for coating is effectively increased rate of drying and the intensity of film, in addition, use polyacrylate dispersion as one of film forming matter, not only improve the stability of coating, and add durability and the hydrophobicity of film.Polyacrylate dispersion, modified diphenylmethane diisocyanate and alkyd resin are mixing cured, the high comprehensive performance such as the coating waterproofing of formation, scratch resistance, hardness, intensity.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated:
Embodiment
1
The preparation of polyacrylate dispersion: emulsifying agent, distilled water and initiator being mixed, wherein the consumption of initiator accounts for the 3wt% of emulsifying agent weight, dispersed with stirring post-heating to 80 DEG C, reacts 1 hour, obtains emulsion standby；Kynoar, methyl methacrylate and ethyl acrylate are mixed, stirs 1 hour, ultrasonic disperse 20 minutes, then feed the mixture in above-mentioned emulsion, then add initiator, isothermal reaction 2 hours at 80 DEG C, it is thus achieved that polyacrylate dispersion, standby.
Modified diphenylmethane diisocyanate is adopted and is prepared with the following method: take 4; 4 '-methyl diphenylene diisocyanate, methyl acetate and antioxidant 1010 add in reaction vessel; under nitrogen atmosphere protective condition; it is warming up to 70 DEG C; add three-(dimethylamino methyl) phenol; wherein the consumption of three-(dimethylamino methyl) phenol accounts for 4; the 2wt% of 4 '-methyl diphenylene diisocyanate weight; isothermal reaction 1 hour; then add Benzenecarbonyl chloride.; obtain modified diphenylmethane diisocyanate, standby.
Weigh polyacrylate dispersion 15 parts respectively, modified diphenylmethane diisocyanate 16 parts, alkyd resin 15 parts, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts.Polyacrylate dispersion, modified diphenylmethane diisocyanate and alkyd resin are mixed, then it is sequentially added into alumina powder, nano-bentonite, dispersant, trimethylhexamethylenediamine, vegetable oil, defoamer, zinc sulfate and deionized water, it is sufficiently stirred for disperseing 30 minutes, it is thus achieved that coating composition.
Comparative example
1
Weighing the polyacrylate dispersion 35 parts of embodiment 1 preparation respectively, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts.By polyacrylate dispersion and alumina powder, nano-bentonite, dispersant, trimethylhexamethylenediamine, vegetable oil, defoamer, zinc sulfate, deionized water mixing, it is sufficiently stirred for disperseing 30 minutes, it is thus achieved that coating composition.
Comparative example
2
Weighing the modified diphenylmethane diisocyanate 16 parts of embodiment 1 preparation, alkyd resin 15 parts respectively, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts.Modified diphenylmethane diisocyanate and alkyd resin are mixed, then it is sequentially added into alumina powder, nano-bentonite, dispersant, trimethylhexamethylenediamine, vegetable oil, defoamer, zinc sulfate and deionized water, it is sufficiently stirred for disperseing 30 minutes, it is thus achieved that coating composition.
Table 1 properties of product test result
| Sample | Hot strength/MPa | Elongation at break/% | Impermeability | Surface drying time/h | Do solid work the time/h |
| Embodiment 1 | 3.6 | 554 | Good | 5 | 9 |
| Comparative example 1 | 3.2 | 523 | Typically | 6 | 10 |
| Comparative example 2 | 3.05 | 516 | Typically | 4.5 | 8 |
Claims (3)
1. a waterproof paint composition, it is characterised in that this coating composition comprises the component of following parts by weight:
Polyacrylate dispersion 15 parts, modified diphenylmethane diisocyanate 16 parts, alkyd resin 15 parts, granularity is the alumina powder 6 parts of 1000 mesh, nano-bentonite 5 parts, dispersant 4 parts, trimethylhexamethylenediamine 6 parts, vegetable oil 4 parts, defoamer 4 parts, 3 parts of zinc sulfate, deionized water 35 parts；
Described polyacrylate dispersion is adopted and is prepared with the following method: emulsifying agent, distilled water and initiator is mixed, dispersed with stirring post-heating to 80 DEG C, reacts 1 hour, obtain emulsion standby；Kynoar, methyl methacrylate and ethyl acrylate are mixed, stirs 1 hour, ultrasonic disperse 20 minutes, then feed the mixture in above-mentioned emulsion, then add initiator, isothermal reaction 2 hours at 80 DEG C, it is thus achieved that polyacrylate dispersion；
Described modified diphenylmethane diisocyanate is adopted and is prepared with the following method: take 4; 4 '-methyl diphenylene diisocyanate, methyl acetate and antioxidant 1010 add in reaction vessel; under nitrogen atmosphere protective condition; it is warming up to 70 DEG C; add three-(dimethylamino methyl) phenol; isothermal reaction 1 hour, then adds Benzenecarbonyl chloride., obtains modified diphenylmethane diisocyanate.
2. coating composition as claimed in claim 1, it is characterised in that: the consumption of the initiator in the preparation process of polyacrylate dispersion accounts for the 3wt% of emulsifying agent weight.
3. coating composition as claimed in claim 1, it is characterised in that: in the preparation process of modified diphenylmethane diisocyanate, the consumption of three-(dimethylamino methyl) phenol accounts for 4, the 2wt% of 4 '-methyl diphenylene diisocyanate weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078136.9A CN104559731B (en) | 2015-02-15 | 2015-02-15 | A kind of waterproof paint composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078136.9A CN104559731B (en) | 2015-02-15 | 2015-02-15 | A kind of waterproof paint composition |
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| Publication Number | Publication Date |
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| CN104559731A CN104559731A (en) | 2015-04-29 |
| CN104559731B true CN104559731B (en) | 2016-11-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105038562A (en) * | 2015-07-30 | 2015-11-11 | 安徽荣达阀门有限公司 | Antifouling powder coating with high strength and good heat insulation property for valves, and preparation method for antifouling powder coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4910230A (en) * | 1987-12-25 | 1990-03-20 | Tosoh Corporation | Preparation of fine-cell rigid polyurethane foam using amine catalyst |
| CN102108246A (en) * | 2010-12-26 | 2011-06-29 | 华南理工大学 | Double-component polyurethane water-based paint |
| CN103805041B (en) * | 2012-11-08 | 2016-06-22 | 东莞劲胜精密组件股份有限公司 | Composite high-performance coating |
| CN103421374B (en) * | 2013-08-23 | 2015-10-21 | 苏州长盛机电有限公司 | A kind of art metal furniture coating |
| CN104497926B (en) * | 2015-01-26 | 2016-06-01 | 温州泓呈祥科技有限公司 | A kind of water-proof environmental protection binding agent |
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Inventor after: Zhang Hongfa Inventor before: Li Chengwei |
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Effective date of registration: 20170316 Address after: 516021 Huizhou City, Guangdong City, the town of East Village Patentee after: Huizhou Weirkang Wang paint Chemical Co. Ltd. Address before: Dayuan town of Fuyang city new village in Hangzhou city of Zhejiang province in 311414. Patentee before: FUYANG HONGXIANG TECHNOLOGY SERVICES CO., LTD. |