CN102585638A - Preparation method for waterborne nano radiating and cooling environment-friendly coating, and coating - Google Patents
Preparation method for waterborne nano radiating and cooling environment-friendly coating, and coating Download PDFInfo
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Abstract
The invention discloses a preparation method for a waterborne nano radiating and cooling environment-friendly coating. The method comprises the following steps of: 1) preparing a component A; 2) preparing a component B; 3) weighing and proportioning; and 4) preparing the coating, namely mixing the component A in the corresponding proportion and the component B in the corresponding proportion to prepare the coating. The invention also discloses the coating prepared by the method. The preparation method is simple, and is low in cost and high in efficiency; and the provided coating can be cured into a film at low temperature, and after a material is cured, a coating film with a nano structure is formed. The coating film has the characteristics of high emissivity, high high temperature stability and high hardness and the like. The coating can be widely applied to radiating of light-emitting diodes (LED), information technology (IT) communication equipment, automobile electrical systems, high-voltage power transformers, industrial automation equipment, household appliance compressors, electric motors, and weapon launching devices, and the fields of radiating of various electric heaters, radiators, and electron components.
Description
Technical field
The invention belongs to paint field, be specifically related to a kind of water nano radiating and cooling environmental protection coating material preparation method and coating thereof.
Background technology
Along with the high speed development of electron trade, electron device and equipment just develop with the direction of pursuing high frequency and high arithmetic speed with microminiaturized towards miniaturized.And the deficiency of heat-sinking capability is a major technique bottleneck of its development of restriction.The heat radiation of electronic product at present is mainly through the closed assembly radiator element or install electronic fan additional and realize at the Heating element back side, but can increase the volume of electronic product like this, can't satisfy the demand of the microminiaturized and miniaturized of electronic product.
In recent years, occurred realizing the report that dispels the heat through apply the heat radiation coated material at the Heating element back side.For example, patent CN101659829A discloses a kind of ir radiation composite radiating coating.Patent adopts dual-coating, and bottom is a charcoal blacking, and surface layer is high radiation nano composite dope, utilizes the investment precoat high radiant rate to reach the purpose of radiating and cooling.But this coating application complex process, demanding again coat-thickness is realized radiating and cooling simultaneously, so cost is higher.Patent CN101993621A relates to the condense compsn of heat dissipation film of a kind of spraying, and it consists of heat-resisting Teflon resin and silicon carbide powder.Owing to be a kind of solvent based coating, environmental pollution is bigger.Patent CN101942270A relates to a kind of LED heat radiation coating, and it has used bigger beryllium oxide of toxicity and the more expensive aluminium nitride AlN of price to improve the radiating effect of coating.
Summary of the invention
To above-mentioned deficiency, one of the object of the invention is, provides that a kind of cost is low, ME is simple and easy, the nano composite epoxy polysiloxane coating materials preparation method who is easy to realize;
The object of the invention also is, a kind of radiating and cooling obvious results coating is provided.
For realizing above-mentioned purpose, technical scheme provided by the present invention is:
A kind of water nano radiating and cooling environmental protection coating material preparation method, it may further comprise the steps:
(1) component of formulation components A: component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
(2) formulation components B: the component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%;
The weight proportion of (3) weighing and proportioning: component A and B component is 5: 1～1: 3;
(4) preparation coating: the component A of corresponding proportional quantity and the B component of corresponding proportional quantity are mixed, process coating;
Said step (1), (2) do not have sequencing;
The particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2
Described step (1), it specifically comprises the steps:
(1.1) in advance with the water of corresponding formula ratio and the mixed solution of winning of properties-correcting agent of corresponding formula ratio; Then the nano-powder with corresponding formula ratio is dispersed in first solution; Put into high speed dispersor then to realize even modification, start high speed dispersor, the commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins; Modification time is 30～60 minutes, makes component A after the modification action finishes;
(1.2) component A is packed in the moistureproof container, pack.
Described step (2), it specifically comprises the steps:
(2.1) in advance with the dispersion agent of corresponding formula ratio and mixed second solution that gets of water-base resin of corresponding formula ratio; Put into high speed dispersor then to realize uniform mixing; Start high speed dispersor; The commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins, and jitter time is 10～15 minutes;
(2.2) after step (2.1) finishes; Add the micron order filler of corresponding formula ratio again in second solution, start high speed dispersor then, the commentaries on classics degree of this high speed dispersor is set at 2000～3000 rev/mins; Jitter time is 10～20 minutes, makes slurry after the dispersion action finishes;
(2.3) slurry is transferred in the ball mill, started ball mill, the commentaries on classics degree of this ball mill is set at 2500～3500 rev/mins, and milling time is 1～3 hour;
(2.4) make B component after abrasive action finishes, B component is packed in the moistureproof container, pack.
It is further comprising the steps of:
(5) painting of coating: coating is applied action through one or more bonded modes in dip-coating, roller coat, curtain coating, spraying, the brushing to the base material of required coating, make the surface of base material form layer of even and film;
(6) apply action and finish, it is that 140～180 ℃ environment solidified 15～25 minutes down that this base material is moved to temperature, and making films solidifies attached on the base material automatically, and making and forming a layer thickness on the surface of this base material is 30～50 microns the rete that is coated with.
Said properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent.
Said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion.
Said micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate.
Said dispersion agent is an aqueous dispersant.
A kind ofly implement the coating that above-mentioned method makes, it contains component A and B component, and the weight proportion of component A and B component is 5: 1～1: 3, and wherein the component of component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
The component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%;
The particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2The particle diameter that nano-powder is is preferably at 10～60nm.
Properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent; Be that properties-correcting agent includes but not limited to: titanate coupling agent, aluminate coupling agent, silane coupling agent etc. are a kind of, the preferred silane coupling agent;
Said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion; Promptly include but not limited to: a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion etc.;
The micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate; Be that the micron order filler includes but not limited to: rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate, preferred rutile titanium dioxide;
Said dispersion agent is an aqueous dispersant.Dispersion agent includes but not limited to: AFCONA 4595, AFCONA4560, AFCONA5071, BYK180.
Base material among the present invention mainly is meant metallic surface such as iron and steel, duraluminum etc.Coating provided by the invention can directly be coated in the surface of base material.The present invention is matrix resin with the water-base resin, and nano-powder and micro-powder combine, and adopts special modification and synthesis technique to be prepared from, and material forms nanostructure and films after low-temperature curing.Only coat the body surface that needs radiating and cooling, just can obviously reduce body surface and internal temperature, the radiating and cooling effect is remarkable.Simultaneously, this product also has excellent properties such as high firmness, insulativity, preservative property, antiacid alkali, oil-proofness.Maximum characteristics are effectively to reduce the working temperature of various electron devices, improve its service efficiency, prolong working life, reduce equipment volume.
Beneficial effect of the present invention is: method ME provided by the invention is simple and easy, and cost is low, efficient is high; Coating provided by the invention at low temperatures just can film-forming, forms filming of nanostructure after the material cured.This characteristic such as (far red light), high-temperature stability are good, hardness height that have high emissivity of filming.Can be widely used in LED heat radiation, the heat radiation of IT communication equipment, motorcar electric system radiating, the heat radiation of high-tension electricity X-former, industrial automation equipment heat radiation, home appliance compressor heat radiation, electro-motor heat radiation, the heat radiation of weapon launching device and various electricradiator, scatterer and cooling electronic component field.
Below in conjunction with accompanying drawing and embodiment, the present invention is described further.
Description of drawings
Fig. 1 is preparation flow figure of the present invention.
Embodiment
Embodiment 1: referring to Fig. 1, present embodiment provides a kind of water nano radiating and cooling environmental protection coating material preparation method, and it may further comprise the steps:
(1) component of formulation components A: component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
(2) formulation components B: the component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%;
The weight proportion of (3) weighing and proportioning: component A and B component is 5: 1～1: 3;
(4) preparation coating: the component A of corresponding proportional quantity and the B component of corresponding proportional quantity are mixed, process coating;
Said step (1), (2) do not have sequencing;
The particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2
Described step (1), it specifically comprises the steps:
(1.1) in advance with the water of corresponding formula ratio and the mixed solution of winning of properties-correcting agent of corresponding formula ratio; Then the nano-powder with corresponding formula ratio is dispersed in first solution; Put into high speed dispersor then to realize even modification, start high speed dispersor, the commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins; Modification time is 30～60 minutes, makes component A after the modification action finishes;
(1.2) component A is packed in the moistureproof container, pack.
Described step (2), it specifically comprises the steps:
(2.1) in advance with the dispersion agent of corresponding formula ratio and mixed second solution that gets of water-base resin of corresponding formula ratio; Put into high speed dispersor then to realize uniform mixing; Start high speed dispersor; The commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins, and jitter time is 10～15 minutes;
(2.2) after step (2.1) finishes; Add the micron order filler of corresponding formula ratio again in second solution, start high speed dispersor then, the commentaries on classics degree of this high speed dispersor is set at 2000～3000 rev/mins; Jitter time is 10～20 minutes, makes slurry after the dispersion action finishes;
(2.3) slurry is transferred in the ball mill, started ball mill, the commentaries on classics degree of this ball mill is set at 2500～3500 rev/mins, and milling time is 1～3 hour;
(2.4) make B component after abrasive action finishes, B component is packed in the moistureproof container, pack.
It is further comprising the steps of:
(5) painting of coating: coating is applied action through one or more bonded modes in dip-coating, roller coat, curtain coating, spraying, the brushing to the base material of required coating, make the surface of base material form layer of even and film;
(6) apply action and finish, it is that 140～180 ℃ environment solidified 15～25 minutes down that this base material is moved to temperature, and making films solidifies attached on the base material automatically, and making and forming a layer thickness on the surface of this base material is 30～50 microns the rete that is coated with.
Said properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent.
Said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion.
Said micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate.
Said dispersion agent is an aqueous dispersant.
A kind ofly implement the coating that above-mentioned method makes, it contains component A and B component, and the weight proportion of component A and B component is 5: 1～1: 3, and wherein the component of component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
The component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%;
The particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2The particle diameter that nano-powder is is preferably at 10～60nm.
Properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent; Be that properties-correcting agent includes but not limited to: titanate coupling agent, aluminate coupling agent, silane coupling agent etc. are a kind of, the preferred silane coupling agent;
Said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion; Promptly include but not limited to: a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion etc.;
The micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate; Be that the micron order filler includes but not limited to: rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate, preferred rutile titanium dioxide;
Said dispersion agent is an aqueous dispersant.Dispersion agent includes but not limited to: AFCONA 4595, AFCONA4560, AFCONA5071, BYK180.
Base material among the present invention mainly is meant metallic surface such as iron and steel, duraluminum etc.Coating provided by the invention can directly be coated in the surface of base material.
Embodiment 2, and its method and coating are all basic identical with embodiment 1, and its difference is: coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nano-TiO
2Powder 40%, titanate coupling agent 40%, water 20%.The component and the weight percent thereof of B component are following: pure-acrylic emulsion 50%, and rutile titanium dioxide 40%, AFCONA 4,595 10%.The weight proportion of component A and B component is 1: 3.
Embodiment 3, and its method and coating are all basic identical with embodiment 1, and its difference is: this coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nano-TiO
2Powder 40%, aluminate coupling agent 50%, water 10%.The component and the weight percent thereof of B component are following: pure-acrylic emulsion 45%, and rutile titanium dioxide 45%, AFCONA 4,595 10%.The weight proportion of component A and B component is 1: 1.
Embodiment 4, and its method and coating are all basic identical with embodiment 1, and its difference is: this coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nano-TiO
2Powder 30%, silane coupling agent 50%, water 20%.The component and the weight percent thereof of B component are following: pure-acrylic emulsion 40%, and talcum powder 50%, AFCONA 4,595 10%.The weight proportion of component A and B component is 2: 1.
Embodiment 5, and its method and coating are all basic identical with embodiment 1, and its difference is: this coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nanometer SiO
2Powder 35%, aluminate coupling agent 45%, water 20%.The component and the weight percent thereof of B component are following: organosilicon crylic acid latex 45%, and talcum powder 50%, AFCONA 4,595 5%.The weight proportion of component A and B component is 1: 1.5.
Embodiment 6, and its method and coating are all basic identical with embodiment 1, and its difference is: this coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nanometer SiO
2Powder 40%, silane coupling agent 45%, water 15%.The component and the weight percent thereof of B component are following: organosilicon crylic acid latex 50%, and tiff 48%, AFCONA 4,560 2%.The weight proportion of component A and B component is 5: 1.
Embodiment 7, and its method and coating are all basic identical with embodiment 1, and its difference is: this coating is made up of component A and B component.Wherein the component of component A and weight percent thereof are following: nanometer Al
2O
3Powder 35%, silane coupling agent 50%, water 15%.The component and the weight percent thereof of B component are following: benzene emulsion 48%, and lime carbonate 50%, AFCONA 4,560 2%.The weight proportion of component A and B component is 4: 1.
The foregoing description is merely the present invention's embodiment preferably, and the present invention can not enumerate out whole embodiments one by one, and the technical scheme of one of all employing the foregoing descriptions, or the equivalent variations of doing according to the foregoing description are all in protection domain of the present invention.
Table 1 is the performance test report of adopting the resultant water nano radiating and cooling of the above embodiment of the present invention environmental protection coating material; The concrete test ground that adopts is the sandblast aluminium alloy plate; Build is between 30～50 microns, and drying conditions is that temperature was solidified 20 minutes down at 140～180 ℃, carries out performance test after 1 day; Test environment conditions is a normal temperature and pressure, and The performance test results is as shown in table 1.
Table 1
Can find out that through the performance index in the table 1 because coating of the present invention adopts nano-powder and micro-powder to combine, be prepared from through special modification and synthesis technique again, material forms fine and close nanostructure and films after low-temperature curing.Characteristic such as this have high emissivity (far red light), high-temperature stability of filming is good.Simultaneously, this product also has excellent properties such as high firmness, insulativity, preservative property, antiacid alkali, oil-proofness.Maximum characteristics are effectively to reduce the working temperature of various electron devices, improve its service efficiency, prolong working life, reduce equipment volume.Can be widely used in LED heat radiation, the heat radiation of IT communication equipment, motorcar electric system radiating, the heat radiation of high-tension electricity X-former, industrial automation equipment heat radiation, home appliance compressor heat radiation, electro-motor heat radiation, the heat radiation of weapon launching device and various electricradiator, scatterer and cooling electronic component field.
Of the above embodiment of the present invention, adopt method same or similar and component and other coating of obtaining, all in protection domain of the present invention with it.
Claims (10)
1. water nano radiating and cooling environmental protection coating material preparation method is characterized in that it may further comprise the steps:
(1) component of formulation components A: component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
(2) formulation components B: the component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%;
The weight proportion of (3) weighing and proportioning: component A and B component is 5: 1～1: 3;
(4) preparation coating: the component A of corresponding proportional quantity and the B component of corresponding proportional quantity are mixed, process coating;
Said step (1), (2) do not have sequencing;
The particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2
2. water nano radiating and cooling environmental protection coating material preparation method according to claim 1 is characterized in that, described step (1), and it specifically comprises the steps:
(1.1) in advance with the water of corresponding formula ratio and the mixed solution of winning of properties-correcting agent of corresponding formula ratio; Then the nano-powder with corresponding formula ratio is dispersed in first solution; Put into high speed dispersor then to realize even modification, start high speed dispersor, the commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins; Modification time is 30～60 minutes, makes component A after the modification action finishes;
(1.2) component A is packed in the moistureproof container, pack.
3. water nano radiating and cooling environmental protection coating material preparation method according to claim 1 is characterized in that, described step (2), and it specifically comprises the steps:
(2.1) in advance with the dispersion agent of corresponding formula ratio and mixed second solution that gets of water-base resin of corresponding formula ratio; Put into high speed dispersor then to realize uniform mixing; Start high speed dispersor; The commentaries on classics degree of this high speed dispersor is set at 1000～1500 rev/mins, and jitter time is 10～15 minutes;
(2.2) after step (2.1) finishes; Add the micron order filler of corresponding formula ratio again in second solution, start high speed dispersor then, the commentaries on classics degree of this high speed dispersor is set at 2000～3000 rev/mins; Jitter time is 10～20 minutes, makes slurry after the dispersion action finishes;
(2.3) slurry is transferred in the ball mill, started ball mill, the commentaries on classics degree of this ball mill is set at 2500～3500 rev/mins, and milling time is 1～3 hour;
(2.4) make B component after abrasive action finishes, B component is packed in the moistureproof container, pack.
4. water nano radiating and cooling environmental protection coating material preparation method according to claim 1 is characterized in that it is further comprising the steps of:
(5) painting of coating: coating is applied action through one or more bonded modes in dip-coating, roller coat, curtain coating, spraying, the brushing to the base material of required coating, make the surface of base material form layer of even and film;
(6) apply action and finish, it is that 140～180 ℃ environment solidified 15～25 minutes down that this base material is moved to temperature, and making films solidifies attached on the base material automatically, and making and forming a layer thickness on the surface of this base material is 30～50 microns the rete that is coated with.
5. water nano radiating and cooling environmental protection coating material preparation method according to claim 1 and 2 is characterized in that, said properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent.
6. according to claim 1 or 3 described water nano radiating and cooling environmental protection coating material preparing methods, it is characterized in that said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion.
7. according to claim 1 or 3 described water nano radiating and cooling environmental protection coating material preparing methods, it is characterized in that, said micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate.
8. according to claim 1 or 3 described water nano radiating and cooling environmental protection coating material preparing methods, it is characterized in that said dispersion agent is an aqueous dispersant.
9. implement the coating that the described method of claim 1-8 makes for one kind, it is characterized in that it contains component A and B component, the weight proportion of component A and B component is 5: 1～1: 3, and wherein the component of component A and weight percent thereof are following:
Nano-powder 30～40%,
Properties-correcting agent 40～50%,
Water 10～20%;
The component and the weight percent thereof of B component are following:
Water-base resin 40～50%,
Micron order filler 40～50%,
Dispersion agent 2～10%.
10. coating according to claim 9 is characterized in that, the particle diameter that described nano-powder is is the nano-TiO that is less than or equal to 100nm
2Or/and nanometer SiO
2Or/and nanometer Al
2O
3Or/and nanometer ZrO
2Properties-correcting agent is a kind of in titanate coupling agent, aluminate coupling agent, the silane coupling agent; Said water-base resin is a kind of in pure-acrylic emulsion, organosilicon crylic acid latex, the benzene emulsion; The micron order filler be rutile titanium dioxide or/and talcum powder or/and tiff or/and lime carbonate; Said dispersion agent is an aqueous dispersant.
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