CN101108946A - Nano transparent insulating paint and its preparing process - Google Patents
Nano transparent insulating paint and its preparing process Download PDFInfo
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Abstract
The invention relates to a nano transparent heat insulation coating, which comprises the following components: inorganic nano particle hybrid high molecular resin, coating additive and thinner. Wherein, the inorganic nano particle hybrid high molecular resin is the resin with core/shell structure and synthesized by inorganic nano heat insulation powder and high molecular resin through in-situ polymerization and the high molecular resin covers the nano heat insulation powder. The invention also provides a preparation method of the nano transparent heat insulation coating. The nano transparent heat insulation coating film forming material is the inorganic nano particle hybrid high molecular resin and is characterized by strong adhesive force, transparency and shielding infrared for heat insulation, which can be coated on the surfaces of glass, metals and cement and is especially for glass of cars or buildings. The invention adopts the inorganic nano particle hybrid high molecular resin with core/shell structure prepared through in-situ polymerization, which is simple and easy and has good coating properties.
Description
Technical field
The present invention relates to thermal insulating coating, refer in particular to a kind of nano transparent insulating coating and preparation method thereof.
Background technology
Along with deepening continuously of building a resource-conserving and environment-friendly society, for cutting down the consumption of energy, satisfy the energy-conserving and environment-protective needs, the exploitation thermal insulating coating has great realistic meaning, especially the nano transparent insulating coating that is applied on vehicle glass and the building glass of particularly suitable has caused extensive concern, the research and development starting in this respect of the U.S. and Japan is morning, and U.S. Pat 5518810 and European patent EP 1040913 all are to utilize the method for nanometer heat insulation material ITO and macromolecule film former physical blending to prepare a kind of transparent heat-insulated nano composite dope.
China starts to walk than later to the research of transparent heat insulating dope, domestic some patents of also having delivered about this respect, the patent No. is that 20041001467.2 patent also is to adopt the heat insulation nano material to prepare nano transparent insulating coating with the method for different macromolecule film former (aqueous polyurethane, water polyacrylic acid, polyorganosiloxane resin) physical blending, in this co-mixing system, the problem of have nanoparticle bad dispersibility, poor stability, very easily reuniting causes the effect of heat insulation of nano paint poor; The film-forming properties of aqueous-based and transparent coatings, sticking power are also very poor, also do not have large-scale industrial production at present.
Summary of the invention
Technical problem to be solved by this invention is: a kind of nano transparent insulating coating is provided, and it can overcome the bad dispersibility of the nano material that exists in the confessed coating in the prior art, the problem of poor stability.
The further technical problem to be solved of the present invention is: the preparation method that a kind of nano transparent insulating coating is provided, its method is simple, can prepare the nano transparent insulating coating of problems such as the bad dispersibility that overcomes the nano material that exists in the confessed coating in the prior art, poor stability.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of nano transparent insulating coating comprises following component: inorganic nano particle hybridization macromolecule resin, coatings additive(s) and thinner; Wherein, described inorganic nano particle hybridization macromolecule resin is to have the inorganic nano particle hybridization macromolecule resin of core/shell structure by the heat insulation powder of inorganic nano and macromolecule resin by in-situ polymerization mode synthetic, is coating the nano heat-insulating powder by macromolecule resin.
Preferably, the weight percent of described each component of nano transparent insulating coating is specific as follows:
Inorganic nano particle hybridization macromolecule resin: 60%～75%;
Coatings additive(s): %～10%;
Thinner: 20%～35%;
Wherein, the weight of described nano heat-insulating powder accounts for 1%～10% of inorganic nano particle hybridization macromolecule resin gross weight.
Preferably, described inorganic nano particle hybridization macromolecule resin is a kind of in the following various resin at least: inorganic nano particle hybridization urethane, inorganic nano particle hybridization polyacrylic resin, inorganic nano particle hybridization poly organic silicon resin, inorganic nano particle hybridization organic silicon modified polyurethane, inorganic nano particle hybridization acrylic acid modified polyurethane, the organic-silicon-modified polyacrylic resin of inorganic nano particle hybridization, inorganic nano particle hybridization organosilicon/acrylic acid modified polyurethane.
Preferably, the particle size range of described nano heat-insulating powder is 10～100nm, and it comprises a kind of in the following nano material at least: nano antimony tin oxide (ATO), nano-indium stannum oxide (ITO).
Preferably, described nano heat-insulating powder also comprises a kind of in the following nano material at least: nano ferriferrous oxide (Fe
3O
4), nano titanium oxide (TiO
2), nano silicon (SiO
2), nano zine oxide (ZnO), nano-aluminium oxide (A1
3O
2).
Preferably, described coatings additive(s) comprises a kind of in the following various auxiliary agent at least: flow agent, defoamer, film coalescence aid, thickening material, and wherein, flow agent is an acrylic copolymer; Defoamer is polysiloxane compound or modified polyorganosiloxane compound; Film coalescence aid is ethylene glycol monobutyl ether/dipropylene glycol butyl ether mixture or alcohol ester compounds; Thickening material is the water-soluble dispersion liquid of a kind of hydroxyl acrylic.
Preferably, described inorganic nano particle hybridization macromolecule resin is inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin, and its component and weight part are as follows:
Methyl methacrylate (MMA) 30～55;
Butyl acrylate (BA) 30～40;
Vinylformic acid (AA) 3～10;
Methacrylic acid hydroxyl propyl ester (HPMA) 3～8;
Initiator (ammonium persulphate) 0.1～0.6;
Emulsifying agent (OP-10/SDS) 1～6;
Nano heat-insulating powder (ITO) 1～6.
On the other hand, the present invention also provides following technical scheme: a kind of preparation method of nano transparent insulating coating comprises the steps:
(1) the inorganic nano particle hybridization macromolecule resin of core/shell structure is synthetic, adopt in-situ polymerization, allow the heat insulation powder of inorganic nano participate in the inorganic nano particle hybridization macromolecule resin that polyreaction obtains core/shell structure, inorganic nano-particle is coated in the macromolecule resin with the mode of chemical bond;
(2) inorganic nano particle hybridization macromolecule resin and coatings additive(s) and the thinner blend with preparation makes nano transparent insulating coating, and its each component and weight percent are as follows:
Inorganic nano particle hybridization macromolecule resin: 60%～75%;
Coatings additive(s): 1%～10%;
Thinner: 20%～35%.
The invention has the beneficial effects as follows: by synthesizing inorganic nano particle hybridization macromolecule resin, mode with chemical bond is coated on inorganic nano-particle in the macromolecule resin, can effectively improve the bad dispersibility of nano material in coating, the problem of poor stability, and then improve effect of heat insulation; And the inorganic nano particle hybridization macromolecule resin with core/shell structure can improve wear resistance, water tolerance, weathering resistance, resistance to soiling, tensile strength, resistance to impact shock and the bonding strength of polymkeric substance, improve the paint film transparency, film-forming properties, sticking power, significantly reduce minimum film-forming temperature.Can be widely used on the matrixes such as being coated on glass, metal.Method of the present invention, the in-situ polymerization mode is applied to the preparation of coating, thereby can obtain core/shell structure inorganic nano particle hybridization macromolecule resin, method is simple, and can prepare the nano transparent insulating coating of problems such as the bad dispersibility that overcomes in the prior art nano material that exists in the coating of generally acknowledging, poor stability.
Description of drawings
Fig. 1 is preparation technology's schema of a kind of inorganic nano particle hybridization macromolecule resin among the nano transparent insulating coating preparation technology of the present invention.
Fig. 2 is preparation technology's schema of another kind of inorganic nano particle hybridization macromolecule resin among the nano transparent insulating coating preparation technology of the present invention.
Below in conjunction with accompanying drawing the present invention is described further.
Embodiment
The invention provides a kind of nano transparent insulating coating, its component and weight percent are specific as follows:
Inorganic nano particle hybridization macromolecule resin 60%～75%;
Coatings additive(s) 1%～10%;
Thinner 20%～35%;
Wherein, described inorganic nano particle hybridization macromolecule resin is the filmogen of effect nano transparent insulating coating, be synthesized into by the in-situ polymerization mode by heat insulation powder of inorganic nano and macromolecule resin, coating the nano heat-insulating powder by macromolecule resin, the weight of nano heat-insulating powder accounts for 1%～10% of inorganic nano particle hybridization macromolecule resin weight.
Described inorganic nano particle hybridization macromolecule resin is the inorganic nano particle hybridization macromolecule resin with core/shell structure, is a kind of in the following various resin at least: resins such as inorganic nano particle hybridization urethane, inorganic nano particle hybridization polyacrylic resin, inorganic nano particle hybridization poly organic silicon resin, inorganic nano particle hybridization organic silicon modified polyurethane, inorganic nano particle hybridization acrylic acid modified polyurethane, the organic-silicon-modified polyacrylic resin of inorganic nano particle hybridization, inorganic nano particle hybridization organosilicon/acrylic acid modified polyurethane.
The particle size range of described nano heat-insulating powder is 10～100nm, and it comprises a kind of in the following nano material at least: nano antimony tin oxide (ATO), nano-indium stannum oxide (ITO).In addition, as required, described nano heat-insulating powder also can comprise at least a in the following nano material: nano ferriferrous oxide (Fe
3O
4), nano titanium oxide (TiO
2), nano silicon (SiO
2), nano zine oxide (ZnO), nano-aluminium oxide (Al
3O
2).
Described coatings additive(s) comprises a kind of in the following various auxiliary agent at least: flow agent, defoamer, film coalescence aid, thickening material, and wherein, flow agent is an acrylic copolymer; Defoamer is polysiloxane compound or modified polyorganosiloxane compound; Film coalescence aid is ethylene glycol monobutyl ether/dipropylene glycol butyl ether mixture or alcohol ester compounds; Thickening material is the water-soluble dispersion liquid of a kind of hydroxyl acrylic.
Preferably, described inorganic nano particle hybridization macromolecule resin is inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin, and its component and weight part are as follows:
Methyl methacrylate (MMA) 30～55;
Butyl acrylate (BA) 30～40;
Vinylformic acid (AA) 3～10;
Methacrylic acid hydroxyl propyl ester (HPMA) 3～8;
Initiator (ammonium persulphate) 0.1～0.6;
Emulsifying agent (OP-10/SDS) 1～6;
Nano heat-insulating powder (ITO) 1～6.
The present invention also provides a kind of preparation method of nano transparent insulating coating, comprises the steps:
(1) the inorganic nano particle hybridization macromolecule resin of core/shell structure is synthetic, adopt in-situ polymerization, allow the heat insulation powder of inorganic nano participate in the inorganic nano particle hybridization macromolecule resin that polyreaction obtains core/shell structure, inorganic nano-particle is coated in the macromolecule resin with the mode of chemical bond;
(2) inorganic nano particle hybridization macromolecule resin and coatings additive(s) and the thinner blend with preparation makes nano transparent insulating coating, and its each component and weight percent are as follows:
Inorganic nano particle hybridization macromolecule resin: 60%～75%;
Coatings additive(s): 1%～10%;
Thinner: 20%～35%;
Preferably, in the step (1), during in-situ polymerization, coupling agents such as inorganic nano heat-insulating powder body and function silane coupling agent or titanic acid ester are carried out finishing, make it have specific functional group.
Be described in further detail the preparation process of nano transparent insulating coating of the present invention below with several examples:
Example one:
In this example, described inorganic nano particle hybridization macromolecule resin adopts inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin, and the component and the weight percent of described nano transparent insulating coating are as follows:
Inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin: 60%～75%;
Coatings additive(s): 1%～10%;
Thinner: 20%～35%.
In hybrid resin, the content of nano heat-insulating powder tin indium oxide (ITO) is 1%～10%, and its size is all at 10～100nm, and inorganic nano material is to carry out finishing by silane coupling agent or titanic acid ester.
Described coatings additive(s) comprises at least: a kind of in flow agent, defoamer, film coalescence aid, the thickening material, thickening material is the water-soluble dispersion liquid of a kind of hydroxyl acrylic (WT-102), film coalescence aid is alcohol ester compounds (alcohol ester-12), flow agent is an acrylic copolymer, and defoamer is polysiloxane compounds (Dehydran1620).
As shown in Figure 1, preparation technology's flow process of inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin is as follows: at first ITO is carried out finishing with coupling agents such as silane coupling agent or titanic acid ester earlier, make it have specific functional group; Then, add MMA, BA, emulsifying agent, initiator, reacted 2～3 hours down, obtain ITO hydridization polyacrylic ester nuclear emulsion at 70～90 degrees centigrade; Add AA, MMA, HPMA, initiator, emulsifying agent again, reacted 2～3 hours down, and pH value is adjusted to 7, thereby obtain core/shell structure inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin at 70～90 degrees centigrade.
Its concrete operations flow process is as follows:
1, takes by weighing the toluene that 5g nano-indium stannum oxide (ITO) places 50ml earlier, (γ-(methacryloxy) propyl trimethoxy silicane KH-570) of Dropwise 5 ml then, at 110 ℃, nitrogen protection conditioned response 2h, centrifugal then, dry, grinding makes silane-modified ITO;
2, the good ITO of weighing 5g modification, place four-hole bottle, add part pre-emulsion (MMA:30g then, BA:24g, emulsifying agent: 5.0g) with part ammonium persulphate (0.3g), 75 ℃ of reactions, after pre-emulsion of dropping residue continuously and initiator dropwise, 85 ℃ of reaction 1h heat up, then under 80 ℃ of conditions, drip remaining pre-emulsion (MMA:18g, BA:16g, MMA:2g, HPMA:2g, emulsifying agent: 3.0g) with remaining ammonium persulphate (0.16g), dropwise back insulation 0.5h and be warming up to 90 ℃ again, add partial emulsifier and continue to be cooled to the room temperature discharging after the reaction 1h, promptly get core/shell structure inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin.
In this example, provide the concrete compositing formula of following three kinds of nano transparent insulating coatings:
| Project | Component | Weight percent (%) | ||
| Prescription 1 | Prescription 2 | Prescription 3 | ||
| 1 | Inorganic nano tin indium oxide hydridization polyacrylate resin | 60 | 67.5 | 75 |
| 2 | Film coalescence aid (alcohol ester-12) | 3 | 3 | 2.8 |
| 3 | Thickening material (WT-12) | 2 | 1 | 0.8 |
| 4 | Flow agent | 1 | 0.5 | 0.5 |
| 5 | Defoamer (Dehydran 1620) | 1 | 0.5 | 0.4 |
| 6 | Thinner (water) | 33 | 27.5 | 20.5 |
Contrast under the same conditions utilizes the performance of two kinds of nano transparent insulating coatings of the method preparation of the method for in-situ polymerization and physical blending, compare and learn: utilize the nano transparent insulating coating (identical prescription) of the method preparation of in-situ polymerization to have certain superiority: dispersiveness, the stability of nano-powder significantly increase, and the hardness of paint film, wear resistance, water-intake rate, weathering resistance also significantly increase.The filming of nano-indium stannum oxide of containing different content carried out the mensuration of spectral transmittance, and along with the increase of content, visible transmitance slightly descends, but all more than 80%; The heat-proof quality of coating also is significantly improved: 7～8 degrees centigrade of indoor/outdoor temperature-differences.
Example two:
In this example, described inorganic nano particle hybridization macromolecule resin adopts inorganic nano tin indium oxide (ITO) hydridization acrylic acid modified polyurethane, and the component and the weight percent of described nano transparent insulating coating are as follows:
Inorganic nano tin indium oxide (ITO) hydridization acrylic acid modified polyurethane: 60%～75%;
Coatings additive(s): 1%～1 0%;
Thinner: 20%～35%.
Wherein, inorganic nano tin indium oxide (ITO) hydridization acrylic acid modified polyurethane is as the filmogen of nano transparent insulating coating, and its component and weight part are as follows:
Polyethers or polyester diol 30～60;
Aromatic diisocyanate (TDI) 10～30;
Chainextender short-chain fat family dibasic alcohol 1～5;
Linking agent trihydroxy-polyvalent alcohol (DMPA) 1～6;
Short-chain fat family neutralizing agent triethylamine (TEA) 1.5～4.5;
End-capping reagent hydroxy acrylate class (HPMA) 10～30;
Methyl methacrylate (MMA) 15～35;
Butyl acrylate (BA) 5～15;
Initiator (ammonium persulphate) 0.1～0.6;
Nano heat-insulating powder (ITO) 1～6.
Wherein, described polyethers or polyester diol be respectively mean number all relatively molecular weight be 1000～4000 poly adipate succinic acid ester glycol, polyethylene glycol adipate glycol or mean number all relatively molecular weight be 200～6000 polyoxyethylene glycol; Aromatic series or aliphatic diisocyanate are respectively 2,4 toluene diisocyanates (TDI), 4,4-'-diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI).
In hybrid resin, the content of nano heat-insulating powder tin indium oxide (ITO) is 1%～10%, and its size is all at 10～100nm, and inorganic nano material is to carry out finishing by silane coupling agent or titanic acid ester.
Described coatings additive(s) comprises at least: a kind of in flow agent, defoamer, film coalescence aid, the thickening material, and thickening material is the water-soluble dispersion liquid of a kind of hydroxyl acrylic (WT-105); Film coalescence aid is ethylene glycol monobutyl ether/dipropylene glycol butyl ether mixture, and flow agent is an acrylic copolymer, and defoamer is a modification polysilanes compound.
As shown in Figure 2, the technical process of in-situ polymerization mode synthesizing inorganic nano-indium stannum oxide (ITO) hydridization acrylic acid modified polyurethane is as follows: at first ITO is carried out finishing with coupling agents such as silane coupling agent or titanic acid ester earlier, make it have specific functional group; Then, add polyethers or polyester two nothing alcohol, TDI, DMPA, reacted 3～4 hours down, obtain the ITO hybrid polyurethane at 60～90 degrees centigrade; Add MMA, HPMA again, reacted 3 hours down at 70～90 degrees centigrade; Then, add TEA again, add emulsifying water, obtain performed polymer; Add initiator for reaction at last again, thereby obtain core/shell structure inorganic nano tin indium oxide (ITO) hydridization acrylic acid modified polyurethane.
Its concrete operations flow process is as follows:
1, takes by weighing the toluene that 5g nano-indium stannum oxide (ITO) places 50ml earlier, (the silane coupling agent γ-An Jibingjisanyiyangjiguiwan APS) of Dropwise 5 ml then, at 110 ℃, nitrogen protection conditioned response 2h, centrifugal then, dry, grinding makes silane-modified ITO;
2, to take by weighing the silane-modified ITO of 6g earlier, and 15.0g (0.01mol) poly adipate succinic acid ester glycol PBA (molecular weight 4000) and place and have temperature control, in the there-necked flask of stirring and condensing works, add 2.84g (0.0212mol) DMPA down at 80 ℃, 17.4g (0.1mol) TDI and 2～3 dibutyl tin dilaurates, 90 ℃ of constant temperature 2h, make 60 ℃ of backflow 4h of solvent with acetone, add 2g (0.014mol) methacrylic acid-2-hydroxy propyl ester (HPMA) again and continue reaction 2h, to polyurethane performed polymer end-blocking, move in the emulsion tube then, add among 2.148 (0.0212mol) TEA and 4～5min, add the emulsification of 150ml distilled water, violent stirring 5～10min, last rotary evaporation is removed acetone, promptly gets water nano tin indium oxide hybrid polyurethane emulsion;
3, (solid content is 20% to the accurate homemade PU emulsion of weighing 100g, the content of HPMA is 8%) for placing round-bottomed flask, accurately weighing 12.00g MMA and 8.00g BA place dropping funnel again, 3.6g initiator (ammonium persulphate) is water-soluble, be added drop-wise to respectively while stirring and mix pre-emulsification 2h in the homemade PU emulsion.The emulsion of getting after half pre-emulsification places the four-hole boiling flask that has temperature control, stirring and condensing works, temperature is to react 1h under 80 ℃ of conditions, second half emulsion is placed constant pressure funnel, slowly splash in the reaction system, about 1h drips off, and controlled temperature is 90 ℃, insulation 45min, regulate pH to 8.0～9.0 with ammoniacal liquor, cool off room temperature, promptly get inorganic nano tin indium oxide (ITO) the hydridization acrylic acid modified polyurethane water-base resin of core/shell structure.
In this example, also provide the concrete compositing formula of following three kinds of nano transparent insulating coatings:
| Project | Component | Weight percent (%) | ||
| Prescription 1 | Prescription 2 | Prescription 3 | ||
| 1 | Inorganic nano tin indium oxide hydridization acrylic acid modified polyurethane | 60 | 68 | 75 |
| 2 | Film coalescence aid (ethylene glycol monobutyl ether) | 3 | 2.8 | 2.5 |
| 3 | Thickening material (WT-105) | 2 | 1.2 | 0.8 |
| 4 | Flow agent | 1 | 0.5 | 0.5 |
| 5 | Defoamer (modified polyorganosiloxane 815) | 0.5 | 0.5 | 0.4 |
| 6 | Thinner (water) | 33.5 | 27 | 20.8 |
Contrast under the same conditions utilizes the performance of two kinds of nano transparent insulating coatings of the method preparation of the method for in-situ polymerization and physical blending, compare and learn: utilize the nano transparent insulating coating (identical prescription) of the method preparation of in-situ polymerization to have certain superiority: dispersiveness, the stability of nano-powder significantly increase, and the hardness of paint film, wear resistance, water-intake rate, weathering resistance also significantly increase.The filming of nano-indium stannum oxide of containing different content carried out the mensuration of spectral transmittance, along with the visible transmitance of the increase of content slightly descends, but all more than 80%; The heat-proof quality of coating also is significantly improved: 7～8 degrees centigrade of indoor/outdoor temperature-differences.
Claims (10)
1. nano transparent insulating coating, it is characterized in that comprising following component: inorganic nano particle hybridization macromolecule resin, coatings additive(s) and thinner, wherein, described inorganic nano particle hybridization macromolecule resin is to have the inorganic nano particle hybridization macromolecule resin of core/shell structure by the heat insulation powder of inorganic nano and macromolecule resin by in-situ polymerization mode synthetic, is coating the nano heat-insulating powder by macromolecule resin.
2. nano transparent insulating coating as claimed in claim 1 is characterized in that: the weight percent of described each component of nano transparent insulating coating is specific as follows:
Inorganic nano particle hybridization macromolecule resin: 60%～75%;
Coatings additive(s): 1%～10%;
Thinner: 20%～35%;
Wherein, the weight of described nano heat-insulating powder accounts for 1%～10% of inorganic nano particle hybridization macromolecule resin gross weight.
3. nano transparent insulating coating as claimed in claim 1 or 2 is characterized in that: described inorganic nano particle hybridization macromolecule resin is a kind of in the following various resin at least: inorganic nano particle hybridization urethane, inorganic nano particle hybridization polyacrylic resin, inorganic nano particle hybridization poly organic silicon resin, inorganic nano particle hybridization organic silicon modified polyurethane, inorganic nano particle hybridization acrylic acid modified polyurethane, the organic-silicon-modified polyacrylic resin of inorganic nano particle hybridization, inorganic nano particle hybridization organosilicon/acrylic acid modified polyurethane.
4. nano transparent insulating coating as claimed in claim 1 or 2, it is characterized in that: the particle size range of described nano heat-insulating powder is 10～100nm, and it comprises a kind of in the following nano material at least: nano antimony tin oxide (ATO), nano-indium stannum oxide (ITO).
5. nano transparent insulating coating as claimed in claim 4 is characterized in that: described nano heat-insulating powder also comprises a kind of in the following nano material at least: nano ferriferrous oxide (Fe
3O
4), nano titanium oxide (TiO
2), nano silicon (SiO
2), nano zine oxide (ZnO), nano-aluminium oxide (Al
3O
2).
6. nano transparent insulating coating as claimed in claim 1 or 2 is characterized in that: described coatings additive(s) comprises a kind of in the following various auxiliary agent at least: flow agent, defoamer, film coalescence aid, thickening material, and wherein, flow agent is an acrylic copolymer; Defoamer is polysiloxane compound or modified polyorganosiloxane compound; Film coalescence aid is ethylene glycol monobutyl ether/dipropylene glycol butyl ether mixture or alcohol ester compounds; Thickening material is the water-soluble dispersion liquid of a kind of hydroxyl acrylic.
7. nano transparent insulating coating as claimed in claim 1 is characterized in that: described inorganic nano particle hybridization macromolecule resin is inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin, and its component and weight part are as follows:
Methyl methacrylate (MMA) 30～55;
Butyl acrylate (BA) 30～40;
Vinylformic acid (AA) 3～10;
Methacrylic acid hydroxyl propyl ester (HPMA) 3～8;
Initiator (ammonium persulphate) 0.1～0.6;
Emulsifying agent (OP-10/SDS) 1～6;
Nano heat-insulating powder (ITO) 1～6.
8. the preparation method of a nano transparent insulating coating as claimed in claim 1 is characterized in that, comprises the steps:
(1) the inorganic nano particle hybridization macromolecule resin of core/shell structure is synthetic, adopt in-situ polymerization, allow the heat insulation powder of inorganic nano participate in the inorganic nano particle hybridization macromolecule resin that polyreaction obtains core/shell structure, inorganic nano-particle is coated in the macromolecule resin with the mode of chemical bond;
(2) inorganic nano particle hybridization macromolecule resin and coatings additive(s) and the thinner blend with preparation makes nano transparent insulating coating, and its each component and weight percent are as follows:
Inorganic nano particle hybridization macromolecule resin: 60%～75%;
Coatings additive(s): 1%～10%;
Thinner: 20%～35%.
9. the preparation method of nano transparent insulating coating as claimed in claim 8, it is characterized in that: the inorganic nano particle hybridization macromolecule resin of described core/shell structure is core/shell structure inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin, during in-situ polymerization, concrete steps are as follows in step (1):
At first ITO is carried out finishing with coupling agents such as silane coupling agent or titanic acid ester earlier, make it have specific functional group;
Then, add MMA, BA, emulsifying agent, initiator, reacted 2～3 hours down, obtain ITO hydridization polyacrylic ester nuclear emulsion at 70～90 degrees centigrade;
Add AA, MMA, HPMA, initiator, emulsifying agent again, reacted 2～3 hours down, and pH value is adjusted to 7, thereby obtain core/shell structure inorganic nano tin indium oxide (ITO) hydridization polyacrylic resin at 70～90 degrees centigrade.
10. the preparation method of nano transparent insulating coating as claimed in claim 8, it is characterized in that: the inorganic nano particle hybridization macromolecule resin of described core/shell structure is core/shell structure inorganic nano tin indium oxide (ITO) hydridization acrylic acid modified polyurethane, during in-situ polymerization, concrete steps are as follows in step (1):
At first ITO is carried out finishing with coupling agents such as silane coupling agent or titanic acid ester earlier, make it have specific functional group;
Add polyethers or polyester two nothing alcohol, TDI, DMPA then, reacted 3～4 hours down, obtain the ITO hybrid polyurethane at 70～85 degrees centigrade;
Add MMA, HPMA again, reacted 3 hours down at 80 degrees centigrade;
Then, add TEA again, add emulsifying water, obtain performed polymer;
Add initiator for reaction at last again, thereby obtain the acrylate modified urethane of core/shell structure inorganic nano tin indium oxide (ITO) hydridization.
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-
2007
- 2007-07-12 CN CN200710075879A patent/CN100593558C/en not_active Expired - Fee Related
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