CN102746784A - Energy-saving insulated flame-retardant water-proof corrosion-proof functional coating and preparation method thereof - Google Patents
Energy-saving insulated flame-retardant water-proof corrosion-proof functional coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an energy-saving insulated flame-retardant water-proof corrosion-proof functional coating and a preparation method thereof. The functional coating is prepared from the following raw materials: an aqueous polyurethane dispersion, a flame retardant, a flame-retardant antismoke agent, a hollow glass bead, a wetting dispersant, an anti-settling agent, a thickening agent, water, a leveling agent and a de-foaming agent, has the functions of heat preservation, flame retarding, water prevention and corrosion resistance and the like, is unlikely to become yellow when in use, is safe and reliable, is excellent in performance, is good in compatibility with pigment dyestuff, is unlikely to damage the coated surface, is easy to modify, is nontoxic, is safe to use, does not pollute environment and is suitable for the fields of inner and outer wall coating, pipeline coating, wood furniture coating, decoration coating, chemical corrosion-proof coating and the like.
Description
Technical field
The invention belongs to chemical field, be specifically related to corrosion-resistant functional paint of a kind of heat-insulating and fire-proof waterproof and preparation method thereof.
Background technology
Energy-saving and emission-reduction have become the fundamental state policy of China, and building energy conservation is an important component part wherein.In the energy-conservation design of architectural exterior-protecting construction; Widespread use along with external thermal insulation system; Finishing material has also been proposed stricter requirement; Heavy material such as ceramic tile commonly used in the past, stone material are abandoned, and, water-repellancy good with outer heat preservation system consistency and matching and ventilation property is excellent, contamination resistance and the good functional veneer coating of weather resistance are favored.
But the key property of relevant veneer coatings such as that prior function property veneer coating does not all relate to is fire-retardant, resistant to chemical media.Improving over-all propertieies such as flame retardant properties, waterproof, resistant to chemical media, reduction pollution when therefore, how to improve functional veneer coating heat-insulating property is heat retaining property coating development key problem.
Summary of the invention
The objective of the invention is problems such as existing thermal insulation coatings resistant to chemical media is poor, contaminate environment, function singleness, provide a kind of and have advantages such as low cigarette, low toxicity, difficult combustion, waterproof, resistant to chemical media in the corrosion-resistant functional paint of energy saving heat-insulating and fire-proof waterproof of one in order to overcome.
Another object of the present invention provides the preparation method of this energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint.
The objective of the invention is to realize in the following manner:
The corrosion-resistant functional paint of a kind of energy saving heat-insulating and fire-proof waterproof, this coating is prepared by following component: 100 parts of aqueous pu dispersions, 5-30 part fire retardant; 1-10 part fire-proof smoke suppressor, 40-100 part hollow glass micropearl, 0.1-2 part wetting dispersing agent; 0.1-2 portion anti-settling agent; 1-5 part thickening material, 10-50 part water, 0.1-1 part flow agent and 0.1-2 part skimmer.
This coating is preferably prepared by following component: 100 parts of aqueous pu dispersions, 15-25 part fire retardant, 5-8 part fire-proof smoke suppressor; 60-90 part hollow glass micropearl; 1-2 part wetting dispersing agent, 0.5-1.5 part anti-settling agent, 2-4 part thickening material; 20-50 part water, 0.4-1 part flow agent and 0.5-1 part skimmer.
The main performance index of described aqueous pu dispersions is: solid content is 20-40%, and viscosity is 11-20s/ (being coated with-4 glasss, 25 ℃).Fire retardant is preferably the mixture of TDE and Antimony Trioxide: 99.5Min, and mass ratio is 1:5-5:1.Described fire-proof smoke suppressor is preferably in Marinco H, white lake, the zinc borate a kind of.The thermal conductivity of preferred hollow glass micropearl is 0.03-0.08W/mK, particle diameter 1000-5000 order.Described wetting dispersing agent, anti-settling agent, thickening material, flow agent and skimmer are the commercially available prod.The wetting dispersing agent BYK-AT204 that the preferred German Bi Ke of wetting dispersing agent chemical company produces; The anti-settling agent BYK-410 that the preferred German Bi Ke of anti-settling agent chemical company produces; The thickening material K-800 that ring Chemical Industry Science Co., Ltd of the preferred Guangzhou of thickening material section produces; The flow agent BYK-307 that the preferred German Bi Ke of flow agent chemical company produces, the skimmer CA-2011 that the preferred Guangzhou of skimmer Xuan Ning Chemical Industry Science Co., Ltd produces.
Above-mentioned aqueous pu dispersions can prepare through following method: polyether glycol is vacuumized dehydration 0.5-2 hour under 100-110 ℃; Be cooled to below 50 ℃; Add aliphatics or alicyclic diisocyanate by the mol ratio-NCO/-OH=2-5 of functional group; Reacted 1-2 hour down at 70-80 ℃, add dimethylol propionic acid, low molecular polylol chainextender then, above raw material reacts in the presence of catalyzer by the mol ratio-NCO/-OH=1.1-1.5 of functional group; Temperature of reaction 70-80 ℃; Reaction times 2-4 hour, in reaction process, control reactant viscosity below 4000mPa.s through adding acetone, having made end group is that master, carboxyl-content are the base polyurethane prepolymer for use as of 0.7-2.0% with the isocyanate groups; The above-mentioned base polyurethane prepolymer for use as that makes is cooled to 30-50 ℃, and the adding triethylamine makes in the performed polymer and obtains prepolymer, the preferred 80-110% of degree of neutralization with salify; The prepolymer discharging under agitation adds deionized water and disperses, and heats up to steam the acetone of 70-90%, promptly makes aqueous pu dispersions.
Said polyether glycol molecular weight between 400-5000, preferred 1500-2500; Described aliphatics or alicyclic diisocyanate are one or more mixing in hexamethylene diisocyanate, isoflurane chalcone diisocyanate, xylylene diisocyanate, Methylcyclohexyl diisocyanate, dicyclohexyl methane diisocyanate, the tetramethylxylylene diisocyanate.Described low molecular polylol chainextender is TriMethylolPropane(TMP), glycerine, terepthaloyl moietie, 1,4-butyleneglycol, 1,6-pinakon, 2, one or more mixing in 3-butyleneglycol, the glycol ether; Described catalyzer is a kind of in dibutyl tin laurate, the stannous octoate.
The preparation method of the corrosion-resistant functional paint of energy-saving heat preserving fire-resistant waterproof of the present invention may further comprise the steps:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry stirred 10-30 minute, preferred stirring velocity is 600-1200 rev/min;
(2) add fire retardant, fire-proof smoke suppressor stirring 30-60 minute; Preferred stirring velocity is 1000-2000 rev/min;
(3) add aqueous pu dispersions, stirred 10-30 minute; Preferred stirring velocity is 600-1200 rev/min;
(4) keep rotating speed constant, adding hollow glass micropearl, thickening material stir and get final product.
With prior art beneficial effect more of the present invention:
1, compare with widely used solvent borne polyurethane coating in the market, the present invention fill a prescription adopt a certain amount of aqueous pu dispersions to make aqueous polyurethane coating have when using to be difficult for xanthochromia, safe and reliable, excellent property, good with the consistency of pigment dye, not easy damaged by coating surface, be easy to modification, advantage such as nontoxic, safe in utilization, free from environmental pollution.
2, adopt reactive flame retardant to combine, make it to play fire-retardant synergy, make coating of the present invention have characteristics such as low cigarette, low toxicity, difficult combustion with fire-proof smoke suppressor.
3, increased the heat-blocking action of coating through adding a certain amount of hollow glass micropearl in the polyurethane coating prescription of the present invention; Reduce density; Combine fire retardant and fire-proof smoke suppressor simultaneously; Make aqueous polyurethane coating have insulation, fire-retardant, waterproof, anticorrosion etc. multi-functional, fields such as exterior wall application in being fit to, wood furniture application, finishing application, Chemical Preservation application in one.
Embodiment
Below just the present invention illustrate, but be not limitation of the present invention.Wherein routine 1-4 is the preparation of aqueous pu dispersions, and routine 5-8 is the preparation of functional paint.
Embodiment 1
In the reactor drum that whisking appliance, TM, reflux exchanger are housed, add polyether glycol (molecular weight is 2300) 40g, vacuumize dehydration 1 hour under 110 ℃, be cooled to and add isoflurane chalcone diisocyanate 18g below 50 ℃; Be warming up to 80 ℃, reacted 2 hours, add dimethylol propionic acid 3g; 1,4-butyleneglycol 1.2g, TriMethylolPropane(TMP) 0.3g; Stannous octoate 0.12g under agitation continues reaction 2 hours, in reaction process, controls reactant viscosity below 4000mPa.s through adding acetone; Obtain performed polymer, be cooled to then about 40 ℃, adding 2g triethylamine makes in the performed polymer and obtains prepolymer with salify; The prepolymer discharging adds deionized water 117g under high speed shear to decollator, the acetone that steams 90% volume obtains aqueous pu dispersions.Its performance is following: solid content: 33.2%; PH value: 6.7; Viscosity (being coated with-4 glasss/25 ℃): 15 seconds.
Embodiment 2
In the reactor drum that whisking appliance, TM, reflux exchanger are housed, add polyether glycol (molecular weight is 2100) 40g, vacuumize dehydration 1 hour under 105 ℃, be cooled to and add isoflurane chalcone diisocyanate 12.5g below 50 ℃; Hexamethylene diisocyanate 6.2g is warming up to 80 ℃, reacts 1 hour; Add dimethylol propionic acid 2.3g, 1,4-butyleneglycol 2.3g, glycerine 0.3g; Dibutyl tin laurate 0.13g under agitation continues reaction 3 hours, in reaction process, controls reactant viscosity below 4000mPa.s through adding acetone; Obtain performed polymer, be cooled to then about 35 ℃, adding 1.5g triethylamine makes in the performed polymer and obtains prepolymer with salify; The prepolymer discharging adds deionized water 125g under high speed shear to decollator, the acetone that steams 90% volume obtains aqueous pu dispersions.Its performance is following: solid content: 32.3%; PH value: 7.1; Viscosity (being coated with-4 glasss/25 ℃): 17 seconds.
Embodiment 3
In the reactor drum that whisking appliance, TM, reflux exchanger are housed, add polyether glycol (molecular weight is 1800) 40g, vacuumize dehydration 1 hour under 105 ℃; Be cooled to the dicyclohexyl methane diisocyanate of adding below 50 ℃ 18g, be warming up to 75 ℃, reacted 1 hour; Add dimethylol propionic acid 3.5g, 1,4-butyleneglycol 1.7g; Stannous octoate 0.2g under agitation continues reaction 3 hours, obtains performed polymer; In reaction process,, be cooled to then about 35 ℃, add the 3.2g triethylamine and make in the performed polymer and salify through adding acetone control reactant viscosity below 4000mPa.s; Discharging adds deionized water 101g under high speed shear to decollator, the acetone that steams 90% volume obtains aqueous pu dispersions.Its performance is following: solid content: 37.3%; PH value: 7.2; Viscosity (being coated with-4 glasss/25 ℃): 18 seconds.
Embodiment 4
In the reactor drum that whisking appliance, TM, reflux exchanger are housed, add polyether glycol (molecular weight is 2200) 40g, vacuumize dehydration 1 hour under 105 ℃, be cooled to and add Methylcyclohexyl diisocyanate 20g below 50 ℃; Be warming up to 75 ℃, reacted 1 hour, add dimethylol propionic acid 3.2g; 1,4-butyleneglycol 1.2g, TriMethylolPropane(TMP) 0.3g; Dibutyl tin laurate 0.12g under agitation continues reaction 4 hours, obtains performed polymer; In reaction process,, be cooled to then about 35 ℃, add the 2.3g triethylamine and make in the performed polymer and salify through adding acetone control reactant viscosity below 4000mPa.s; Discharging adds deionized water 213g under high speed shear to decollator, the acetone that steams 80% volume obtains aqueous pu dispersions.Its performance is following: solid content: 22.1%; PH value: 6.5; Viscosity (being coated with-4 glasss/25 ℃): 14 seconds.
Embodiment 5
The aqueous pu dispersions that the prescription of functional paint: 100g embodiment 1 is prepared, 10g TDE, 10g Antimony Trioxide: 99.5Min, 5g zinc borate; 70g hollow glass micropearl (thermal conductivity is 0.03-0.08W/mK, particle diameter 1000-5000 order), 1g wetting dispersing agent (German Bi Ke chemical company; BYK-AT204), and the 1g anti-settling agent (German Bi Ke chemical company, BYK-410); The 2g thickening material (ring Chemical Industry Science Co., Ltd of Guangzhou section, K-800), 30g water; 0.5g flow agent (German Bi Ke chemical company, BYK-307) with the 1g skimmer (Guangzhou Xuan Ning Chemical Industry Science Co., Ltd, CA-2011).Its concrete preparation process is following:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry, stirring velocity 600-1200 rev/min, stirred 10-30 minute;
(2) add fire retardant, fire-proof smoke suppressor, stirring velocity 1000-2000 rev/min, stirred 30-60 minute;
(3) reduce stirring velocity to 600-1200 rev/min, add aqueous pu dispersions, stirred 10-30 minute;
(4) keep rotating speed constant, add hollow glass micropearl, thickening material, regulate painting color at last.
The physicals of resulting functional paint coating is as shown in the table:
| Project | Index |
| Dry film density, g/cm 3 | 0.17 |
| Oxygen index | 30 |
| The dry film water-intake rate, % | 4% |
| Heat-conduction value, W/ (m 2.K) | 0.03 |
| Anti-10% sodium chloride solution erosion time, h | 75 |
Embodiment 6
The aqueous pu dispersions that the prescription of functional paint: 100g embodiment 2 is prepared, 8g TDE, 7g Antimony Trioxide: 99.5Min, 6g Marinco H; 60g hollow glass micropearl (thermal conductivity is 0.03-0.08W/mK, particle diameter 1000-5000 order), 1.2g wetting dispersing agent (German Bi Ke chemical company; BYK-AT203), and the 0.8g anti-settling agent (German Bi Ke chemical company, BYK-410); The 2g thickening material (ring Chemical Industry Science Co., Ltd of Guangzhou section, K-800), 25g water; 0.8 part flow agent (German Bi Ke chemical company, BYK-333) with the 1g skimmer (Guangzhou Xuan Ning Chemical Industry Science Co., Ltd, CA-2031).Its concrete preparation process is following:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry, stirring velocity 600-1200 rev/min, stirred 10-30 minute;
(2) add fire retardant, fire-proof smoke suppressor, stirring velocity 1000-2000 rev/min, stirred 30-60 minute;
(3) reduce stirring velocity to 600-1200 rev/min, add aqueous pu dispersions, stirred 10-30 minute;
(4) keep rotating speed constant, add hollow glass micropearl, thickening material, regulate painting color at last.
The physicals of resulting functional paint coating is as shown in the table:
| Project | Index |
| Dry film density, g/cm 3 | 0.21 |
| Oxygen index | 29 |
| The dry film water-intake rate, % | 4.5% |
| Heat-conduction value, W/ (m 2.K) | 0.028 |
| Anti-10% sodium chloride solution erosion time, h | 78 |
Embodiment 7
The aqueous pu dispersions that the prescription of functional paint: 100g embodiment 3 is prepared, 12g TDE, 6g Antimony Trioxide: 99.5Min, 5g Marinco H; 90g hollow glass micropearl (thermal conductivity is 0.03-0.08W/mK, particle diameter 1000-5000 order), 1g wetting dispersing agent (German Bi Ke chemical company; BYK-AT204), and the 1g anti-settling agent (German Bi Ke chemical company, BYK-410); 2.5g thickening material ((the tall and erect thick Chemical Industry Science Co., Ltd in Guangzhou, CP-802)), 42g water; 0.4g flow agent (German Bi Ke chemical company, BYK-354) with the 0.8g skimmer (Guangzhou Xuan Ning Chemical Industry Science Co., Ltd, CA-2032).Its concrete preparation process is following:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry, stirring velocity 600-1200 rev/min, stirred 10-30 minute;
(2) add fire retardant, fire-proof smoke suppressor, stirring velocity 1000-2000 rev/min, stirred 30-60 minute;
(3) reduce stirring velocity to 600-1200 rev/min, add aqueous pu dispersions, stirred 10-30 minute;
(4) keep rotating speed constant, add hollow glass micropearl, thickening material, regulate painting color at last.
The physicals of resulting functional paint coating is as shown in the table:
| Project | Index |
| Dry film density, g/cm 3 | 0.15 |
| Oxygen index | 31 |
| The dry film water-intake rate, % | 3.7% |
| Heat-conduction value, W/ (m 2.K) | 0.035 |
| Anti-10% sodium chloride solution erosion time, h | 81 |
Embodiment 8
The aqueous pu dispersions that the prescription of functional paint: 100g embodiment 4 is prepared, 10g TDE, 15g Antimony Trioxide: 99.5Min, 6g white lake; 75g hollow glass micropearl (thermal conductivity is 0.03-0.08W/mK, particle diameter 1000-5000 order), 1g wetting dispersing agent (German Bi Ke chemical company; BYK-AT204), and the 1g anti-settling agent (German Bi Ke chemical company, BYK-410); 2.8g part thickening material (the tall and erect thick Chemical Industry Science Co., Ltd in Guangzhou, CP-803), 20g water; 0.7g flow agent (German Bi Ke chemical company, BYK-356) with the 1g skimmer (Guangzhou Xuan Ning Chemical Industry Science Co., Ltd, CA-2011).Its concrete preparation process is following:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry, stirring velocity 600-1200 rev/min, stirred 10-30 minute;
(2) add fire retardant, fire-proof smoke suppressor, stirring velocity 1000-2000 rev/min, stirred 30-60 minute;
(3) reduce stirring velocity to 600-1200 rev/min, add aqueous pu dispersions, stirred 10-30 minute;
(4) keep rotating speed constant, add hollow glass micropearl, thickening material, regulate painting color at last.
The physicals of resulting functional paint coating is as shown in the table:
| Project | Index |
| Dry film density, g/cm 3 | 0.20 |
| Oxygen index | 30 |
| The dry film water-intake rate, % | 4.1% |
| Heat-conduction value, W/ (m 2.K) | 0.029 |
| Anti-10% sodium chloride solution erosion time, h | 82 |
Dry film density is according to the measuring method of GB/T 533-2008 vulcanized rubber or TPR density in the foregoing description.
Oxygen index is measured the burning behavior part 2 according to GB/T 2406.2-2009 plastics with oxygen index method: the room temperature test.
The dry film water-intake rate is according to GB 1738-1979 insullac paint film water-intake rate assay method.
Heat-conduction value is according to GB/T 10297-1998, the mensuration heat-pole method of non-metallic solid material heat-conducting coefficient.
Anti-10% sodium chloride solution erosion time method is measured concrete steps: it is in 10% sodium chloride solution that coating is immersed concentration, if find havoc phenomenons such as coating generation layering, foaming, then stops experiment and record erosion time.
Therefore; Above-mentioned aqueous polyurethane coating is except having insulation, fire-retardant, waterproof, anticorrosion etc. multi-functional in one; Be difficult for during use xanthochromia, safe and reliable, excellent property, good with the consistency of pigment dye, not easy damaged by coating surface, be easy to modification, nontoxic, safe in utilization, free from environmental pollution, fields such as exterior wall application in being fit to, pipeline application, wood furniture application, finishing application, Chemical Preservation application.
Claims (10)
1. an energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint is characterized in that this coating is prepared by following component: 100 parts of aqueous pu dispersions, 5-30 part fire retardant; 1-10 part fire-proof smoke suppressor, 40-100 part hollow glass micropearl, 0.1-2 part wetting dispersing agent; 0.1-2 portion anti-settling agent; 1-5 part thickening material, 10-50 part water, 0.1-1 part flow agent and 0.1-2 part skimmer.
2. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1 is characterized in that this coating is prepared by following component: 100 parts of aqueous pu dispersions, 15-25 part fire retardant; 5-8 part fire-proof smoke suppressor, 60-90 part hollow glass micropearl, 1-2 part wetting dispersing agent; 0.5-1.5 portion anti-settling agent; 2-4 part thickening material, 20-50 part water, 0.4-1 part flow agent and 0.5-1 part skimmer.
3. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1, it is characterized in that the main performance index of described aqueous pu dispersions is: solid content is 20-40%, viscosity is 11-20s.
4. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1 is characterized in that described fire retardant is the mixture of TDE and Antimony Trioxide: 99.5Min, and mass ratio is 1:5-5:1.
5. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1 is characterized in that described fire-proof smoke suppressor is a kind of in Marinco H, white lake, the zinc borate.
6. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1, the thermal conductivity that it is characterized in that described hollow glass micropearl is 0.03-0.08W/mK, particle diameter 1000-5000 order.
7. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 1; It is characterized in that described aqueous pu dispersions prepares through following method: polyether glycol is vacuumized dehydration 0.5-2 hour under 100-110 ℃; Be cooled to below 50 ℃, add aliphatics or alicyclic diisocyanate, reacted 1-2 hour down at 70-80 ℃ by the mol ratio-NCO/-OH=2-5 of functional group; Add dimethylol propionic acid, low molecular polylol chainextender then; Above raw material reacts in the presence of catalyzer by the mol ratio-NCO/-OH=1.1-1.5 of functional group, and temperature of reaction 70-80 ℃, reaction times 2-4 hour; In reaction process,, make base polyurethane prepolymer for use as through adding acetone control reactant viscosity below 4000mPa.s; The above-mentioned base polyurethane prepolymer for use as that makes is cooled to 30-50 ℃, and the adding triethylamine makes in the performed polymer and obtains prepolymer with salify; The prepolymer discharging under agitation adds deionized water and disperses, and heats up to steam the acetone of 70-90%, promptly makes aqueous pu dispersions.
8. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 7 is characterized in that: said polyether glycol molecular weight between 400-5000, preferred 1500-2500; Described aliphatics or alicyclic diisocyanate are one or more mixing in hexamethylene diisocyanate, isoflurane chalcone diisocyanate, xylylene diisocyanate, Methylcyclohexyl diisocyanate, dicyclohexyl methane diisocyanate, the tetramethylxylylene diisocyanate.
9. energy-saving heat preserving fire-resistant waterproof corrosion resistant functional paint according to claim 7; It is characterized in that: described low molecular polylol chainextender is TriMethylolPropane(TMP), glycerine, terepthaloyl moietie, 1; 4-butyleneglycol, 1,6-pinakon, 2, one or more mixing in 3-butyleneglycol, the glycol ether; Described catalyzer is a kind of in dibutyl tin laurate, the stannous octoate.
10. the preparation method of the described energy-saving heat preserving fire-resistant waterproof of claim 1 a corrosion resistant functional paint is characterized in that this method may further comprise the steps:
(1) wetting dispersing agent, anti-settling agent, flow agent, skimmer are added in the entry stirred 10-30 minute;
(2) add fire retardant, fire-proof smoke suppressor stirring 30-60 minute;
(3) adding aqueous pu dispersions stirred 10-30 minute;
(4) keep rotating speed constant, adding hollow glass micropearl, thickening material stir and get final product.
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