Background technology
Nano-glass heat insulation paint be a kind of use at functional building coating on glass, directly brushing forms thin film at glass surface, has the infrared rays of obstruct and ultraviolet function, the transmittance of visible light is higher simultaneously.This kind coating is in Japan being popularized comprehensively and is being promoted at present at first in day the present invention, and on behalf of brand, it be good auspicious good insulating mold coating of transparent glass.At home, this several years glass heat-insulating coatings also grow up rapidly, at present the domestic insulating mold coating that has had some manufacturer production to be used for glass.
Glass heat-insulating coating divides two kinds of water-based and oiliness, and listing is the oiliness glass heat-insulating coating at first, and this kind coating is because its distinctive thermal and insulating performance has just occupied certain market after the listing.Yan Jiu aqueous glass insulating mold coating had significant meaning to environmental protection when possessing the heat insulating characteristic in recent years, compare with the oiliness insulating mold coating, obviously reduced the amount of organic solvent discharging in air, therefore be about to become a kind of novel building energy conservation heat insulation insulation products, and be widely used.
The water nano heatretaining insulating mold coating produced from glass is the liquid of light blue nontoxic, non-stimulated, acid and alkali-resistance, be as thermal insulating filling with metal oxide nano-material, adopt advanced organic inorganic hybridization technology to be prepared from, preparation technology is simple, easy construction, at normal temperatures, this coating 20min gets final product film forming, surface drying, 5~7 days left and right sides completely solidified, form the light blue film of one deck 8~10um after the film forming at glass surface, this film can effectively intercept infrared rays and ultraviolet ray, and visible light is had higher transmittance.
The water nano glass heat-insulating coating has following characteristics: (1) as solvent, VOC content is very low with water, does not contain aromatic compounds, and formaldehyde and heavy metal content are low, and safety, environmental protection in the use can not cause destruction to ecology; (2) viscosity is lower, when showering or the construction of employing additive method, can rely on the gravity of coating and levelling property to obtain thin uniform coating; (3) have excellent in water resistance and resistance to marring, the hardness of filming can reach 4H; 4, the shock-resistance of filming is better, and has certain elasticity, and safety coefficient is higher.
But existing aqueous glass heat insulation paint is because resin and nano-metal-oxide manufacturer difference, reasons such as unstable product quality, therefore, have that effect of heat insulation is general, unstable product quality, in shortcomings such as glass surface sticking power are bad.
Summary of the invention
The embodiment of the invention provides a kind of nano-glass heat insulation paint and preparation method thereof, it is a kind of water nano glass heat-insulating coating, can solve the bad shortcoming of effect of heat insulation of existing aqueous glass heat insulation paint, realized constant product quality, and improved the sticking power of nano-glass heat insulation paint at glass surface.
Technical solution problem of the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of glass heat-insulating coating, and this thermal insulating coating comprises:
Polyvalent alcohol A component and two components of solidifying agent B component, described polyvalent alcohol A component and solidifying agent B component are made this thermal insulating coating after by 10: 1 mixed of mass ratio;
Wherein, described polyvalent alcohol A component is after disperseing by 4: 1~1: 1 mixed of mass ratio with nano antimony tin oxide slurry and aqueous polyurethane, add the auxiliary agent that accounts for polyvalent alcohol A component and solidifying agent B component total mass 1.7~15%, under the rotating speed of 400r/min~450r/min, disperseed 60 minutes the polyvalent alcohol A component that makes; Wherein, auxiliary agent comprises: adhesion promoter, wetting agent, flow agent, defoamer and thickening material;
The used nano antimony tin oxide slurry of described polyvalent alcohol A component is with nano antimony tin oxide, mixed the water of formation and the mixture of dehydrated alcohol in 1: 1 by volume, the polymer anion dispersion agent is a raw material, with nano antimony tin oxide, the mixture of water and dehydrated alcohol, the polymer anion dispersion agent is 1: 4: 0.15 mixed formation mixed system by mass ratio, the pH value of regulating mixed system is 11, be to disperse 3 hours under the condition of 6000r/min at rotating speed, with power is that the ultra-sonic generator of 1000W carried out ultra-sonic dispersion after 10 minutes, and the solid content that makes is 20% water nano tin-antiomony oxide slurry;
Described solidifying agent B component adopts the isocyanates solidifying agent.
The embodiment of the invention also provides a kind of preparation method of nano-glass heat insulation paint, comprising:
Preparation polyvalent alcohol A component:
The used nano antimony tin oxide slurry of preparation polyvalent alcohol A component:
The mixture, the polymer anion dispersion agent that mixed back formation with nano antimony tin oxide, water and dehydrated alcohol in 1: 1 by volume are raw material;
With the mixture of described nano antimony tin oxide, water and dehydrated alcohol, the mixed formation mixed system that the polymer anion dispersion agent by mass ratio is 1: 4: 0.15, the pH value of regulating mixed system is 11, be to disperse 3 hours under the condition of 6000r/min at rotating speed, carry out ultra-sonic dispersion after 10 minutes with ultra-sonic generator, make solid content and be 20% water nano tin-antiomony oxide slurry;
Preparation polyvalent alcohol A component:
With aqueous polyurethane, auxiliary agent and the above-mentioned nano antimony tin oxide slurry that makes is raw material, and wherein, auxiliary agent comprises: adhesion promoter, wetting agent, flow agent, defoamer and thickening material;
After aqueous polyurethane and nano antimony tin oxide slurry press mass ratio 4: 1~1: 1 mixed disperseed, add adhesion promoter, wetting agent, flow agent, defoamer and thickening material in the auxiliary agent again, under the rotating speed of 400r/min~450r/min, disperseed 60 minutes, make polyvalent alcohol A component, polyvalent alcohol A component is placed after 12 hours and be 10: 1 mixed as solidifying agent B component by mass ratio at least, disperse to make nano-glass heat insulation paint after 15 minutes.
The technical scheme that provides by the invention described above embodiment as can be seen, the nano-glass heat insulation paint of the embodiment of the invention adopts polyvalent alcohol A component and solidifying agent B component to mix, wherein, polyvalent alcohol A component adds auxiliary agent after by nano antimony tin oxide slurry and aqueous polyurethane blending dispersion and makes.Owing in as the polyvalent alcohol A component of glass varnish, add nano level metal oxide (tin-antiomony oxide), this metal oxide can be good at absorbing and reflects infrared light, obstruct is from most of thermal radiation of sunlight and heating of house facility and human body self, and a certain amount of ultraviolet ray of maskable, and has higher visible light transmissivity, make this nano-glass heat insulation paint can be widely used in the on glass of automobile and all kinds of buildingss, cost is lower, but widespread use.The preparation method of this thermal insulating coating is simple, easy construction, and cost is low, has advantages such as economy, quick, environmental protection, safety.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment one
Present embodiment provides a kind of nano-glass heat insulation paint, can brush in film forming on glass, plays trap heat and ultraviolet function, and this thermal insulating coating comprises: polyvalent alcohol A component and solidifying agent B component;
Wherein, polyvalent alcohol A component be with nano antimony tin oxide slurry and aqueous polyurethane by 4: 1~1: 1 mixed of mass ratio after, after disperseing 30min under the rotating speed of 800r/min, add the auxiliary agent that accounts for polyvalent alcohol A component and solidifying agent B component total mass 1.7~15%, under the rotating speed of 400r/min~450r/min, disperseed 60 minutes the polyvalent alcohol A component that makes; Wherein, auxiliary agent comprises: adhesion promoter, wetting agent, flow agent, defoamer and thickening material;
Used nano antimony tin oxide slurry is with nano antimony tin oxide in the described polyvalent alcohol A component, mixed the water of formation and the mixture of dehydrated alcohol in 1: 1 by volume, the polymer anion dispersion agent is a raw material, with nano antimony tin oxide, the mixture of water and dehydrated alcohol, the polymer anion dispersion agent is 1: 4: 0.15 mixed formation mixed system by mass ratio, the pH value of regulating mixed system is 11, be to disperse 3 hours under the condition of 6000r/min at rotating speed, with power is that the ultra-sonic generator of 1000W carried out ultra-sonic dispersion after 10 minutes, and the solid content that makes is 20% water nano tin-antiomony oxide slurry.
Solidifying agent B component adopts the isocyanates solidifying agent, as adopting bayhydur XP2655 etc.
The polyvalent alcohol A component that makes is placed after 12 hours and be 10: 1 mixed as the isocyanates solidifying agent of solidifying agent B component by mass ratio at least, disperse promptly to make nano-glass heat insulation paint after 15 minutes.
Wetting agent in the above-mentioned polyvalent alcohol A component in the used auxiliary agent adopts the nonionogenic tenside of Surfynol 104 series, and the wetting agent consumption is to account for 0.5~2% of polyvalent alcohol A component and solidifying agent B component total mass; Used flow agent adopts the no-solvent type modified polyorganosiloxane, and the flow agent consumption is to account for 0.1~3% of polyvalent alcohol A component and solidifying agent B component total mass; Used thickening material adopts the non-ionic polyurethane thickening material, and the thickening material consumption is to account for 0.1~2% of polyvalent alcohol A component and solidifying agent B component total mass; Used defoamer adopts polyether modified siloxane, and the defoamer consumption is to account for 0.5~3% of polyvalent alcohol A component and solidifying agent B component total mass; Adhesion promoter adopts silane coupling agent, and the consumption of adhesion promoter is 0.5~5% of the total mass of the polyvalent alcohol A component of forming nano-glass heat insulation paint and solidifying agent B component, the sticking power after adhesion promoter can guarantee to brush.
Below in conjunction with concrete preparation process, the preparation method of above-mentioned glass heat-insulating coating is described further:
Preparation nano antimony tin oxide slurry:
With nano antimony tin oxide (nano ATO), water+dehydrated alcohol (being mixing in 1: 1 by volume), the polymer anion dispersion agent is a raw material, press nano antimony tin oxide (nano ATO), the mixture of water+dehydrated alcohol (volume ratio is mixing in 1: 1), the polymer anion dispersion agent is 1: 4: 0.15 mixed formation mixed system by mass ratio, the pH value of regulating the mixed system that forms with sodium hydroxide solution is 11, the rotating speed of going up with 6000r/min at high speed dispersor (JSF-400 that can adopt general Shen, Shanghai chemical machinery company limited to produce stirs sand milling and disperses multi-purpose machine) disperseed 3 hours, be that the ultra-sonic generator (can adopt the ultra-sonic generator of the 1000W that East Sea research station of the Chinese Academy of Sciences produces) of 1000W carries out ultra-sonic dispersion 10min with power then, make solid content and be 20% water nano ATO slurry and be the nano antimony tin oxide slurry, standby; Can further detect the size distribution of water nano ATO slurry with particle size analyzer;
Preparation polyvalent alcohol A component:
Polyvalent alcohol A component: get a certain amount of aqueous polyurethane, add the above-mentioned nano ATO slurry that makes, aqueous polyurethane, the nano ATO slurry is pressed mass ratio and is mixed at 4: 3, can add entry simultaneously dilutes aqueous polyurethane, then press aqueous polyurethane, the nano ATO slurry, the mass ratio of water is to get each raw material at 4: 3: 1, under the rotating speed of 800r/min, disperse 30min, add adhesion promoter, wetting agent, flow agent and defoamer, under the rotating speed of 400r/min, disperseed 30 minutes, add thickening material again, under the rotating speed of 450r/min, disperseed 30 minutes, make polyvalent alcohol A component, place;
Solidifying agent B component: adopt the isocyanates solidifying agent, as adopting bayhydur XP2655 etc.;
Is 10: 1 mixed with polyvalent alcohol A component and solidifying agent B component by the mass ratio of polyvalent alcohol A component and solidifying agent B component, disperses 15min, after mixing, with promptly obtaining nano-glass heat insulation paint after the filtration of 200 purpose filter clothes.
Film with the showering on clean sheet glass of the above-mentioned nano-glass heat insulation paint that makes, the oven dry 3 hours of filming under 80 ℃ of conditions detects the correlated performance of film, sees below table 1.
Outward appearance, pencil hardness (GB/T6739-2006), sticking power (GB/T9286-1998), water tolerance (GB/T1733-1993), the effect of heat insulation chamber of experimentizing of filming after the drying are detected, and detection method is foundation with the GB.
Embodiment two
Present embodiment provides a kind of nano-glass heat insulation paint, can brush in film forming on glass, plays trap heat and ultraviolet function, and this thermal insulating coating comprises: polyvalent alcohol A component and solidifying agent B component;
What provide among each component and consumption and the embodiment one is basic identical, the ratio of different the is used aqueous polyurethane of polyvalent alcohol A component, nano ATO slurry is 4: 2 by mass ratio, can add entry simultaneously dilutes aqueous polyurethane, be to get each raw material at 4: 2: 2 then by the mass ratio of aqueous polyurethane, nano ATO slurry, water, polyvalent alcohol A method for preparing ingredients thereof no longer repeats at this with above-mentioned embodiment one.
The preparation nano-glass heat insulation paint after the method that the coating of gained is identical is filmed, detects the correlated performance of filming, and sees below table 1.
Embodiment three
Present embodiment provides a kind of nano-glass heat insulation paint, can brush in film forming on glass, plays trap heat and ultraviolet function, and this thermal insulating coating comprises: polyvalent alcohol A component and solidifying agent B component;
What provide among each component and consumption and the embodiment one is basic identical, the ratio of different the is used aqueous polyurethane of polyvalent alcohol A component, nano ATO slurry is 4: 1 by mass ratio, can add entry simultaneously dilutes aqueous polyurethane, be to get each raw material at 4: 1: 3 then by the mass ratio of aqueous polyurethane, nano ATO slurry, water, polyvalent alcohol A method for preparing ingredients thereof no longer repeats at this with above-mentioned embodiment one.
The preparation nano-glass heat insulation paint after the method that the coating of gained is identical is filmed, detects the correlated performance of filming, and sees below table 1.
Embodiment four
Present embodiment provides a kind of nano-glass heat insulation paint, can brush in film forming on glass, plays trap heat and ultraviolet function, and this thermal insulating coating comprises: polyvalent alcohol A component and solidifying agent B component;
What provide among each component and consumption and the embodiment one is basic identical, and the ratio of different the is used aqueous polyurethane of polyvalent alcohol A component, nano ATO slurry is 4: 4 by mass ratio, and polyvalent alcohol A method for preparing ingredients thereof no longer repeats at this with above-mentioned embodiment one.
The preparation nano-glass heat insulation paint after the method that the coating of gained is identical is filmed, detects the correlated performance of filming, and sees below table 1.
Table 1 embodiment one~embodiment four correlated performance detected result of filming
As can be known from the table data, when ATO slurry and urethane ratio were 1: 1, film coated surface was smooth inadequately, and hardness of film and water-fastly all descend to some extent, and this may be because filmogen have complete cover glass surface to cause.When the content of ATO slurry more after a little while, the effect of heat insulation of filming is general, is to be best proportioning at 3: 4 so can determine ATO and aqueous polyurethane ratio.
The coating for preparing gained according to the proportioning raw materials of embodiment one carries out the detection of over-all properties, detected result such as following table 2.
Table 2 nano-glass heat insulation paint detected result
In sum, the nano-glass heat insulation paint of the embodiment of the invention adopts polyvalent alcohol A component and solidifying agent B component to mix, because polyvalent alcohol A component is by nano antimony tin oxide slurry and aqueous polyurethane blending dispersion, and adding wetting agent, flow agent, various auxiliary agents such as thickening material and defoamer are made, and nano-glass heat insulation paint since in added nano level metal oxide (tin-antiomony oxide), this metal oxide can be good at absorbing and reflects infrared light, obstruct is from most of thermal radiation of sunlight and heating of house facility and human body self, and a certain amount of ultraviolet ray of maskable, and has higher visible light transmissivity, make this nano-glass heat insulation paint can be widely used in the on glass of automobile and all kinds of buildingss, cost is lower, but widespread use.The preparation method of this nano-glass heat insulation paint is simple, easy construction, and cost is low, has advantages such as economy, quick, environmental protection, safety.Can be widely used in glass of building door and window, glass curtain wall, vehicle glass etc.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.