CN102618141A - Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof - Google Patents
Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN102618141A CN102618141A CN2012100765790A CN201210076579A CN102618141A CN 102618141 A CN102618141 A CN 102618141A CN 2012100765790 A CN2012100765790 A CN 2012100765790A CN 201210076579 A CN201210076579 A CN 201210076579A CN 102618141 A CN102618141 A CN 102618141A
- Authority
- CN
- China
- Prior art keywords
- heat
- heat radiation
- weight part
- monomer
- powder coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides a modified acrylate heat-dissipation powder coating material which is prepared in a way that heat-dissipation agent is dispersed in a monomer solution, subjected to in-situ polymerization and then treated through desolventizing agent, wherein the weight ratio of the heat-dissipation agent to monomer is (1-25) to (7.5-9); the heat-dissipation agent comprises 82-90 percent of carbon fiber and 10-20 percent of nanometer material; and the monomer is one or more of styrene, methacrylic acid, glycidyl ester, acrylic acid-2-ethyl hexyl ester, methyl methacrylate and methyl acrylate. According to the invention, as the heat-dissipation coating material dispersed uniformly and added with the carbon fiber and nanometer material compound heat-dissipation particles is obtained by adopting solution in-situ polymerization, the heat transmission efficiency and the heat dissipation efficiency can be increased; and the heat-dissipation coating material can be coated as a heat-dissipation coating on the surface of a back plate of an LED LCM (liquid crystal model) to dissipate part of the heat generated by LEDs in a infrared radiation manner, so that the heat dissipation performance of the LED LCM is enhanced, and the heat dissipating capacity and the heat dissipation efficiency are improved in the same heat dissipation area.
Description
Technical field
The present invention relates to a kind of heat radiation coating, specifically, relate to a kind of modification acrylate heat radiation powder coating, its preparation method and application thereof.
Background technology
At present; Microelectronics and package technique fast development; Modern electronic equipment becomes by High Density Packaging, the formed height integrated system of little assembling just day by day, and the heat flow density of electronics also improves day by day, and life-span and its working temperature have direct relation; Thermograde in the use can produce thermal stresses and thermal distortion, finally causes the product fatigue failure.This shows that it is the major reason that causes modern electronic product to lose efficacy that heat dissipation design is dealt with improperly.Therefore, can in electrical electronic part such as indicating meter or unicircuit for example, use some heat sink materials, the dysfunction that rises and cause with the temperature of the various parts that prevent to cause by heating.
Existing heat sink material is employed in the filler of interpolation high thermal conductivity in some fluoropolymer resins to form heat radiation coating or heat radiation thin slice more; The patent documentation report of similar heat sink material also has; But in realizing process of the present invention, the contriver finds that there is following problem at least in prior art:
Such as; Disclosed a kind of heat radiation coating among patented claim ZL 200810146607.5, ZL 200510056010.8, the CN 200610080211.6 all is that the heat radiation particle is blended directly in the method for polymkeric substance through physical mixed, its shortcoming be when the particle diameter that dispels the heat little the time to Nano grade; Particle can be because " group bunch " acts on is difficult to be dispersed in uniformly in the polymkeric substance; Influence radiating effect, and particle dia is excessive, is unfavorable for heat conduction and heat radiation.
Mention among the patented claim CN 200510064896.0 and a kind of carbon-coating is deposited to the method manufacturing heat radiation coating of metallic surface, its shortcoming is to need special processing unitss, and technology realizes complicated, and cost is unusual height also.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of radiating efficiency high modification acrylate heat radiation powder coating.
Another object of the present invention provides the preparation method of this heat radiation powder coating.
A purpose more of the present invention provides the application of this heat radiation powder coating.
In order to realize the object of the invention; The present invention provides a kind of modification acrylate heat radiation powder coating; It adopts coolant is dispersed in the monomer solution, carry out in-situ polymerization after, be processed into powder coating through desolventizing; Said coolant and said monomeric amount ratio are (1-2.5): (7.5-9); Said coolant is made up of 80-90% (mass percent, as follows) thomel and 10-20% nano material, said monomer be in vinylbenzene, SY-Monomer G, ethyl acrylate, TEB 3K, the methyl acrylate one or more.
Wherein, solvent-type acrylic ester heat radiation coating according to the invention adopts the raw material of following weight ratio to process: 10-25 weight part coolant, 75-90 weight parts monomers and 0.05-0.3 weight part initiator.
Preferably, it adopts following raw material to process: 15-20 weight part coolant, 80-85 weight parts monomers and 0.2-0.3 weight part initiator.
Said weight part can be weight unit well known to those skilled in the art, such as gram, kilogram, kilogram, ton etc.
Preferably, said monomer is made up of vinylbenzene, SY-Monomer G, ethyl acrylate and TEB 3K and/or methyl acrylate.
Specifically, said monomer can be composed of the following components:
Vinylbenzene (ST) 8-10 weight part, preferred 9-10 weight part;
SY-Monomer G (GMA) 26-30 weight part, preferred 28.5-30 weight part;
Ethyl acrylate (2-EHA) 12-15 weight part, preferred 14-15 weight part;
TEB 3K (MMA)/methyl acrylate 29-35 weight part, preferred 33.5-35 weight part.
Said thomel is preferably the asphalt base carbon fiber powder, and diameter is 5000-7000nm, and length is 5000-10000nm; More preferably adopting the carboxyl mass percent is the carboxylated asphalt base carbon fiber of 0.01-0.1%.
Said nano material is one or more in carbon nanotube, nm-class boron nitride, nanometer silicon carbide or the nano aluminium oxide.
Said carbon nanotube is preferably SWCN or the multi-walled carbon nano-tubes that the carboxyl mass percent is 0.3-1.5%, and diameter is 10-100nm, and length is 100-5000nm.
Said nm-class boron nitride is nano level hexagonal boron nitride or nm-class boron nitride tube.
The diameter of said nm-class boron nitride, nanometer silicon carbide, nano aluminium oxide is 50-1000nm, is preferably 100-300nm, and said nm-class boron nitride tube diameter is 20-100nm, and length is 100-1000nm.
Said initiator is one or more compositions in Diisopropyl azodicarboxylate (AIBN), ABVN (ABVN), the BPO (BPO), and consumption can be adjusted between 0-100%.
For the ease of the carrying out of polyreaction, can respectively coolant and monomer, initiator be added dissolution with solvents, form monomer solution and initiator solution respectively, said monomer solution carries out polyreaction and forms in the presence of initiator solution.
Said solvent is one or more in toluene, YLENE, ETHYLE ACETATE (EAC) or the butylacetate (BAC).
The consumption of each composition in the said monomer solution is: the solvent of 10-25 weight part coolant, 75-90 weight parts monomers and 100-300 weight part.
The consumption of each composition in the said initiator solution is: 0.05-0.3 weight part initiator and 5-50 parts by weight solvent.
In order to realize another object of the present invention; The preparation method of modification acrylate heat radiation powder coating according to the invention; Adopt respectively coolant and monomer, initiator are added dissolution with solvents, form monomer solution and initiator solution respectively, said monomer solution carries out polyreaction in the presence of initiator solution; Desolventizing then, and be processed into powder.
Wherein, said initiator solution is formulated by 0.05-0.3 weight part initiator and 5-50 parts by weight solvent.
Said monomer solution is formulated by the solvent of 10-25 weight part coolant, 75-90 weight parts monomers and 100-300 weight part.
Said polyreaction is employed in 60-80 ℃ and in said monomer solution, drips initiator solution and carry out, and after dropwising, continues reaction 0.5-2 hour.
Specifically, the preparation method of modification acrylate heat radiation powder coating according to the invention comprises the steps:
1) 0.05-0.3 weight part initiator and 5-50 parts by weight solvent are mixed with initiator solution;
2) solvent with 10-25 weight part coolant, 75-90 weight parts monomers and 100-300 weight part is mixed with monomer solution;
3) in said monomer solution, drip initiator solution at 60-80 ℃ then and carry out home position polymerization reaction, after dropwising, continue reaction 0.5-2 hour, get coating solution;
4) again coating solution is processed into powder coating through desolventizing.
Initiator solution in the polyreaction can drip several times, and the timed interval of per twice dropping is 0.5-2 hour, drips the 1/6-1/3 of total amount at every turn.
Said desolventizing is handled the conventional method of removing solvent such as this area of can adopting thin film evaporation, reduction vaporization, spraying drying, the precipitator method and is carried out.
Specifically, such as coating solution that in-situ polymerization is obtained through thin film evaporation or solvent removed by evaporation at reduced pressure obtain solid-like coating, cooling, drying, fragmentation, classification sieve (200-400 order) obtain modification acrylate heat radiation powder coating.
Or the coating solution that in-situ polymerization is obtained separates solvent through spraying drying and obtains the modification acrylate powder coating that dispels the heat with powder coating.
Again or, the coating solution that in-situ polymerization is obtained through the effect deposition of precipitation agent (such as water), filter, dry, broken, classification sieve (200-400 order) obtain modification acrylate heat radiation powder coating.
Modification acrylate heat radiation powder coating of the present invention can adopt methods such as electrostatic spraying well known in the art, friction spraying to be sprayed at the surface that needs heat radiation in use, forms the heat radiation coating through the heated baking melting and solidification again.
In application process, the heat radiation coat-thickness that modification acrylate heat radiation powder coating according to the invention forms can be controlled in the 30-70 micron, preferred 30-40 micron.
Modification acrylate heat radiation powder coating of the present invention selects thomel and nano material as coolant, adopts the coolant with this specific components to be dispersed in uniformly in the acrylic monomer; Carry out in-situ polymerization; And process uniform powder coating, after the use, can form stable heat radiation coating; Also have anti-static electrification simultaneously, can be applied to backboard outside surface or internal surface.
The present invention provides a kind of heat radiation coating, is prepared from described modification acrylate heat radiation powder coating.
The present invention provides a kind of LED module backlight, comprises described heat radiation coating, and said heat radiation coating is located at backboard outside surface or internal surface.
The present invention adopts the coolant with specific components to be dispersed in uniformly in the acroleic acid polymerization monomer; Carry out in-situ polymerization; Form heat radiation powder coating uniformly, have good heat transfer and radiating efficiency, can be made into the solvent-type acrylic ester heat radiation coating of stable three-dimensional heat dissipation structure.It has following advantage:
1) adopts thomel and nano material to constitute the heat radiation particle, guarantee that it all has high thermal conductivity and thermal diffusivity on radial and axial, and in XPA, play " skeleton " effect, to form three-dimensional netted radiator structure.Well known, the heat dispersion of asphalt base carbon fiber and graphite-like seemingly belong to " anisotropy "; Because its particular structural, the axial thermal conductivity of thomel is more than 500W/mK, but radially thermal conductivity is less than axial 1/10; This has restricted the application of thomel as heat conduction, heat sink material greatly, and asphalt base carbon fiber micro mist (functionalized) is surperficial, there are many physical imperfections cross section and inside, therefore; The present invention is employed in the solvent thomel and nano material is mixed, and thomel utilizes the adsorption of nano material as skeleton; Can overlap on thomel; Can be so that nano materials such as carbon nanotube attached on thomel subsurface defect and the surface, make thomel on radial and axial, all have high thermal conductivity and thermal diffusivity, because it possesses certain length; In polymkeric substance, can play the effect of " skeleton "; And nano material dispersivenesses such as carboxylated thomel and carbon nanotube are very good, can be dispersed in the polymeric system, can form the radiator structure to the favourable stable three-dimensional netted system of dispelling the heat;
2) owing to adopted the method for in-situ polymerization to prepare; Play good promoter action for the dispersion of nanometer materials such as SP 1, used carboxylated carbon nanotube, all weakened " group's bunch phenomenon " of nano material greatly; Keep good consistency being arranged with system inner propene acid polymer; Nano material attached on the thomel as the heat radiation component after, be dispersed into uniform external phase easily, be more conducive to the conduction of heat; The particle that dispels the heat simultaneously can be increased in the efficiently radiates heat area on surface, is beneficial to infrared and goes out the surface;
3) heat sink material that adopts among the present invention has and can convert heat into hertzian wave (infrared rays) emission function; It is overlying on the surface that needs heat radiation as the heat radiation coating, can a part of heat be left through way of infrared radiation; On identical area of dissipation; Increase heat dissipation capacity, improved radiating efficiency, strengthened heat dispersion.Because the emittance on radiation and surface has relation (approximate direct ratio); The emittance of heat sink material of the present invention can reach more than 0.8; And common steel plate is about 0.2, and aluminium sheet then is about 0.07, and heat is that the mode with molecular vibration exists in backboard; Can change into hertzian wave (infrared rays) through infra-red material of the present invention and launch, reach the heat radiation purpose thus.
4) researchist of the present invention is through research experiment for many years; Filter out the monomer that is suitable for as the heat radiation powder coating; Select vinylbenzene, SY-Monomer G, ethyl acrylate, TEB 3K and methyl acrylate etc. as monomer; SY-Monomer G, ethyl acrylate are as soft monomer, and vinylbenzene, TEB 3K and methyl acrylate are as hard monomer, and preferred the employing carried out compatible combination with above-mentioned soft monomer and hard monomer; The second-order transition temperature of adjustable polymkeric substance and amount of deflection can improve the performance such as glossiness, sticking power of coating.
5) adopt the method for dropping initiator solution to react, speed of response is controlled, improves the reaction uniformity coefficient, is difficult for taking place frequent " gathering cruelly " phenomenon that occurs in the polymerization process.
6) the present invention comprises the LED-backlit module of said heat radiation coating; Because the heat that makes high-powered LED lamp distribute can fast, evenly distribute and come; Effectively having weakened its heat influences the thermal distortion that optical diaphragm group caused; Therefore avoided the liquid crystal module light leakage phenomena that causes by heat radiation such as LED, improved the quality of liquid crystal module display image, and farthest prolonged the work-ing life of LED lamp and liquid crystal module parts.
7) heat radiation powder coating according to the invention also can be used for other field, improving the radiating efficiency of product device, need improve the product of radiation or radiating efficiency such as warmer, radiator element and some.
8) modification acrylate heat radiation powder coating of the present invention does not contain solvent, is beneficial to environmental protection; Utilization rate of raw materials is high, and it crosses the recyclable utilization of powder of spray; Powder coating storage, transportation safety and convenient.
Description of drawings
Fig. 1 is used to estimate the structural representation of the liquid crystal module of heat dispersion for embodiment of the invention 1-5;
Fig. 2 is the structural representation of the liquid crystal module that comprises said heat radiation coating of the embodiment of the invention 6.
Wherein, 1 aluminium alloy extrusions, 2 backboards, 3LED lamp bar, 4 point for measuring temperature a, 5 point for measuring temperature b, 6 point for measuring temperature c, 7 heat radiation coatings, 8 reflector plates, 9 reflection spots, 10 light guiding plates, 11 optical diaphragm group, 12 liquid crystal panels.
Embodiment
Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
0.2g Diisopropyl azodicarboxylate and 30g YLENE are mixed with initiator solution; With the 1.5g carboxyl-content 0.4% multi-walled carbon nano-tubes (diameter 40nm; Length 400nm) and the 8.5g thomel (carboxyl-content is 0.02% carboxylated asphalt base carbon fiber; Diameter 7000nm, length 5000nm), 10g vinylbenzene, 35g TEB 3K, 30g SY-Monomer G, 15g ethyl acrylate, 300g YLENE is mixed with monomer solution;
In the reactor drum that has mixing of materials function and function of temperature control, monomer solution is warming up to 65 ℃; Branch drips initiator solution for 4 times and carries out polyreaction in monomer solution, the dropping time is 15 minutes at every turn, drips the back sustained reaction 1 hour; After initiator solution all adds polymerization system; Continue reaction 1 hour, building-up reactions finishes, and obtains coating solution.
Reacted solution is poured in the single port flask, and after steaming desolventized, dry 3h in 65 ℃ vacuum drying oven pulverized the back with Universalpulverizer and crosses the modification acrylate powder coating that 260 mesh sieves obtain having heat sinking function with rotatory evaporator.
With used for powder coating JF500 type electrostatic powder coating machine, go up spraying at SECC steel plate (module backboard), form about 60 microns heat radiation coating in back plate surface after 200 ℃ of oven dry, this liquid crystal module backboard is carried out heat dispersion detect:
1. the liquid crystal module backboard that does not have the heat radiation coating is carried out temperature test, liquid crystal module comprises backboard 2, and a side of backboard 2 is fixedly connected aluminium alloy extrusions 1 and LED lamp bar 3; Be provided with reflector plate 8, light guiding plate 10, optical diaphragm group 11 and liquid crystal panel 12 on backboard 2 bottoms successively; Light guiding plate 10 is provided with the reflection spot 9 that is used for luminous reflectance; As shown in Figure 1; Measure the temperature of point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6 respectively, its temperature is respectively 65.7 ℃, 56.3 ℃, 53.1 ℃.
2. after increasing the heat radiation coating, be respectively 62.2 ℃, 53.1 ℃, 50.8 ℃ through the temperature that detects point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6.
Under the situation of fixing thermal source, the temperature of point for measuring temperature is low more, explains that the efficient of heat radiation is high, and promptly the heat dispersion of material is good more.
0.2g Diisopropyl azodicarboxylate and 50g toluene are mixed with initiator solution; With the 1.5g carboxyl-content 0.4% multi-walled carbon nano-tubes (diameter 40nm; Length 400nm), (carboxyl-content is 0.02% carboxylated asphalt base carbon fiber for 1g nano aluminium oxide (diameter 300nm), 1.5g nanometer silicon carbide (diameter 300nm) and 16g thomel; Diameter 7000nm; Length 5000nm), 8g vinylbenzene, 32g TEB 3K, 26g SY-Monomer G, 14g ethyl acrylate, 250g toluene is mixed with monomer solution;
In the reactor drum that has mixing of materials function and function of temperature control, monomer solution is warming up to 72 ℃; Branch drips initiator solution for 4 times and carries out polyreaction in monomer solution, the dropping time is 15 minutes at every turn, drips the back sustained reaction 1 hour; After initiator solution all adds polymerization system; Continue reaction 1 hour, building-up reactions finishes, and obtains coating solution.
Reacted solution is poured in the single port flask, and after steaming desolventized, dry 3h in 65 ℃ vacuum drying oven pulverized the back with Universalpulverizer and crosses the modification acrylate powder coating that 300 mesh sieves obtain having heat sinking function with rotatory evaporator.
With used for powder coating JF500 type electrostatic powder coating machine, go up spraying at SECC steel plate (module backboard), form about 50 microns heat radiation coating in back plate surface after 200 ℃ of oven dry.
After increasing the heat radiation coating, this liquid crystal module backboard is carried out heat dispersion detect, as shown in Figure 1, be respectively 60.8 ℃, 511 ℃, 49.9 ℃ through the temperature that detects point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6.
0.3g ABVN and 40g YLENE are mixed with initiator solution; With 1g hexagonal boron nitride (diameter 400nm), 1g nanometer silicon carbide (diameter 200nm), 0.5g carboxyl-content 0.4% multi-walled carbon nano-tubes (diameter 40nm; Length 400nm) and the 12.5g thomel (carboxyl-content is 0.04% carboxylated asphalt base carbon fiber; Diameter 7000nm; Length 5000nm), 10g vinylbenzene, 30g TEB 3K, 30g SY-Monomer G, 15g ethyl acrylate, 300g YLENE is mixed with monomer solution;
In the reactor drum that has mixing of materials function and function of temperature control, monomer solution is warming up to 72 ℃; Branch drips initiator solution for 4 times and carries out polyreaction in monomer solution, the dropping time is 15 minutes at every turn, drips the back sustained reaction 1 hour; After initiator solution all adds polymerization system; Continue reaction 1 hour, building-up reactions finishes, and obtains coating solution.
Reacted solution is poured in the single port flask, and after steaming desolventized, dry 3h in 65 ℃ vacuum drying oven pulverized the back with Universalpulverizer and crosses the modification acrylate powder coating that 300 mesh sieves obtain having heat sinking function with rotatory evaporator.
With used for powder coating JF500 type electrostatic powder coating machine, go up spraying at SECC steel plate (module backboard), form about 40 microns heat radiation coating in back plate surface after 200 ℃ of oven dry.
After increasing the heat radiation coating, this liquid crystal module backboard is carried out heat dispersion detect, as shown in Figure 1, be respectively 61.3 ℃, 51.5 ℃, 50.0 ℃ through the temperature that detects point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6.
Embodiment 4
0.3g BPO and 40g toluene are mixed with initiator solution; With 0.5g nanometer silicon carbide (diameter 400nm), 0.5g carboxyl-content 0.4% multi-walled carbon nano-tubes (diameter 40nm; Length 400nm) and the 9g thomel (carboxyl-content is 0.05% carboxylated asphalt base carbon fiber; Diameter 6000nm; Length 8000nm), 8g vinylbenzene, 29g methyl acrylate, 26g SY-Monomer G, 12g ethyl acrylate, 150g YLENE, 100g toluene is mixed with monomer solution;
In the reactor drum that has mixing of materials function and function of temperature control, monomer solution is warming up to 80 ℃; Branch drips initiator solution for 3 times and carries out polyreaction in monomer solution, the dropping time is 15 minutes at every turn, drips the back sustained reaction 1 hour; After initiator solution all adds polymerization system; Continue reaction 1 hour, building-up reactions finishes, and obtains coating solution.
Reacted solution is poured in the single port flask, and after steaming desolventized, dry 3h in 65 ℃ vacuum drying oven pulverized the back with Universalpulverizer and crosses the modification acrylate powder coating that 350 mesh sieves obtain having heat sinking function with rotatory evaporator.
With used for powder coating JF500 type electrostatic powder coating machine, go up spraying at SECC steel plate (module backboard), form about 40 microns heat radiation coating in back plate surface after 200 ℃ of oven dry.
After increasing the heat radiation coating, this liquid crystal module backboard is carried out heat dispersion detect, as shown in Figure 1, be respectively 61.7 ℃, 51.5 ℃, 50.2 ℃ through the temperature that detects point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6.
Embodiment 5
0.1g ABVN, 0.1g ABVN, 10g YLENE and 20g toluene are mixed with initiator solution; (carboxyl-content is 0.1% carboxylated asphalt base carbon fiber with 1g hexagonal boron nitride (diameter 350nm), 1g nanometer silicon carbide (diameter 200nm) and 10g thomel; Diameter 7000nm; Length 5000nm), 9g vinylbenzene, 33g methyl acrylate, 30g SY-Monomer G, 15g ethyl acrylate; 150g YLENE, 50g ETHYLE ACETATE, 50g butylacetate are mixed with monomer solution;
In the reactor drum that has mixing of materials function and function of temperature control, monomer solution is warming up to 75 ℃; Branch drips initiator solution for 4 times and carries out polyreaction in monomer solution, the dropping time is 15 minutes at every turn, drips the back sustained reaction 1 hour; After initiator solution all adds polymerization system; Continue reaction 1 hour, building-up reactions finishes, and obtains coating solution.
Water is poured in the reacted single port flask solution, and the polymkeric substance of after the filtration deposition being separated out is dry 5h in 45 ℃ vacuum drying oven, pulverizes the back with Universalpulverizer and crosses the modification acrylate powder coating that 350 mesh sieves obtain having heat sinking function.
With used for powder coating JF500 type electrostatic powder coating machine, go up spraying at SECC steel plate (module backboard), form about 40 microns heat radiation coating in back plate surface after 200 ℃ of oven dry.
After increasing the heat radiation coating, this liquid crystal module backboard is carried out heat dispersion detect, as shown in Figure 1, be respectively 60.9 ℃, 51.0 ℃, 50.0 ℃ through the temperature that detects point for measuring temperature a 4, point for measuring temperature b 5 and point for measuring temperature c 6.
Embodiment 6
The structural representation of Fig. 2 liquid crystal module of said heat radiation coating for the present invention comprises.As shown in Figure 2, this liquid crystal module comprises heat radiation coating 7, is located at backboard 2 outside surfaces; Certainly, also can be located at backboard 2 internal surfaces.The heat radiation coating that heat radiation coating 7 is processed for embodiment 1-5.
The parts that are typically provided with in the miscellaneous part of this liquid crystal module and the existing liquid crystal module are identical, and a side of backboard 2 is fixedly connected aluminium alloy extrusions 1 and LED lamp bar 3; Be provided with reflector plate 8, light guiding plate 10, optical diaphragm group 11 and liquid crystal panel 12 on backboard 2 bottoms successively, light guiding plate 10 is provided with the reflection spot 9 that is used for luminous reflectance.
Though, the present invention has been done detailed description in the preceding text with general explanation and specific embodiments, on basis of the present invention, can to some modifications of do or improvement, this will be apparent to those skilled in the art.Therefore, these modifications or the improvement on the basis of not departing from spirit of the present invention, made all belong to the scope that requirement of the present invention is protected.
Claims (13)
1. modification acrylate heat radiation powder coating; It adopts coolant is dispersed in the monomer solution; After carrying out in-situ polymerization, be processed into powder coating through desolventizing, said coolant and said monomeric weight ratio are (1-2.5): (7.5-9); Said coolant is made up of 80-90% thomel and 10-20% nano material, said monomer be in vinylbenzene, SY-Monomer G, ethyl acrylate, TEB 3K, the methyl acrylate one or more.
2. modification acrylate heat radiation powder coating according to claim 1; It is characterized in that; Said modification acrylate heat radiation powder coating adopts the raw material of following weight part to process: 10-25 weight part coolant, 75-90 weight parts monomers and 0.05-0.3 weight part initiator; Preferably, 10-15 weight part coolant, 85-90 weight parts monomers and 0.2-0.3 weight part initiator.
3. modification acrylate heat radiation powder coating according to claim 1 and 2 is characterized in that said monomer is made up of vinylbenzene, SY-Monomer G, ethyl acrylate and TEB 3K and/or methyl acrylate.
4. modification acrylate heat radiation powder coating according to claim 3 is characterized in that said monomer is composed of the following components:
Vinylbenzene 8-10 weight part;
SY-Monomer G 26-30 weight part;
Ethyl acrylate 12-15 weight part;
TEB 3K/methyl acrylate 29-35 weight part;
Be preferably,
Vinylbenzene 9-10 weight part;
SY-Monomer G 28.5-0 weight part;
Ethyl acrylate 14-15 weight part;
TEB 3K/methyl acrylate 33.5-35 weight part.
5. according to any described modification acrylate heat radiation powder coating among the claim 1-4; It is characterized in that; Said thomel is the asphalt base carbon fiber powder, and the diameter of said asphalt base carbon fiber powder is 5000-7000nm, and length is 5000-10000nm; Preferably, said asphalt base carbon fiber powder employing carboxyl mass percent is the carboxylated asphalt base carbon fiber of 0.01-0.1%.
6. according to any described modification acrylate heat radiation powder coating among the claim 1-5, it is characterized in that said nano material is one or more in carbon nanotube, nm-class boron nitride, nanometer silicon carbide or the nano aluminium oxide; Said carbon nanotube is preferably SWCN or the multi-walled carbon nano-tubes that the carboxyl mass percent is 0.3-2.5%, and diameter is 10-100nm, and length is 100-5000nm; Said nm-class boron nitride is nano-hexagonal boron nitride or nm-class boron nitride tube; The diameter of said nano-hexagonal boron nitride, nanometer silicon carbide, nano aluminium oxide is 50-1000nm, and said nm-class boron nitride tube diameter is 20-100nm, and length is 100-1000nm.
7. the method for preparing any described modification acrylate heat radiation powder coating among the claim 1-6; It is characterized in that; This method adopts respectively coolant and monomer, initiator is added dissolution with solvents; Form monomer solution and initiator solution respectively, said monomer solution carries out polyreaction in the presence of initiator solution, and desolventizing is processed into powder then.
8. the preparation method of modification acrylate heat radiation powder coating according to claim 7 is characterized in that said initiator solution is formulated by 0.05-0.3 weight part initiator and 5-50 parts by weight solvent; Said monomer solution is formulated by the solvent of 10-25 weight part coolant, 75-90 weight parts monomers and 100-300 weight part.
9. the preparation method of modification acrylate according to claim 7 heat radiation powder coating is characterized in that, said polyreaction is employed in 60-80 ℃ and in said monomer solution, drips initiator solution and carry out, and after dropwising, continues reaction 0.5-2 hour.
10. the preparation method of modification acrylate heat radiation powder coating according to claim 7 is characterized in that, comprises the steps:
1) 0.05-0.3 weight part initiator and 5-50 parts by weight solvent are mixed with initiator solution;
2) solvent with 10-25 weight part coolant, 75-90 weight parts monomers and 100-300 weight part is mixed with monomer solution;
3) in said monomer solution, drip initiator solution at 60-80 ℃ then and carry out home position polymerization reaction, after dropwising, continue reaction 0.5-2 hour, get coating solution;
4) again coating solution is processed into powder coating through desolventizing.
11. the preparation method of modification acrylate heat radiation powder coating according to claim 10 is characterized in that, said desolventizing is handled and is adopted the precipitator method, thin film evaporation, reduction vaporization or spraying drying to carry out.
12. a heat radiation coating is characterized in that, is prepared from any described modification acrylate heat radiation powder coating among the claim 1-6.
13. a LED module backlight is characterized in that, comprises the described heat radiation coating of claim 12, said heat radiation coating is located at backboard outside surface or internal surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076579.0A CN102618141B (en) | 2012-03-21 | 2012-03-21 | Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076579.0A CN102618141B (en) | 2012-03-21 | 2012-03-21 | Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102618141A true CN102618141A (en) | 2012-08-01 |
| CN102618141B CN102618141B (en) | 2014-03-12 |
Family
ID=46558363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210076579.0A Active CN102618141B (en) | 2012-03-21 | 2012-03-21 | Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102618141B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964972A (en) * | 2012-11-06 | 2013-03-13 | 河北工业大学 | Composite intensified heat dissipation coating containing graphene or graphene oxide and preparation method of coating |
| CN103172924A (en) * | 2013-04-17 | 2013-06-26 | 天津大学 | High-thermal conductivity polymer composite material and preparation method thereof |
| WO2013155700A1 (en) * | 2012-04-20 | 2013-10-24 | 北京低碳清洁能源研究所 | Energy storage system preventing self from overheating, a method for preventing energy storage system from overheating, and a method for forming a heat-dissipation coating layer on energy storage system |
| CN103613698A (en) * | 2013-11-26 | 2014-03-05 | 王鹏飞 | Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin |
| CN105237991A (en) * | 2014-10-29 | 2016-01-13 | 中山市四维家居照明有限公司 | European-style LED (light-emitting diode) ceiling lamp |
| CN105371254A (en) * | 2015-11-27 | 2016-03-02 | 海信集团有限公司 | Wavelength conversion device, preparation method thereof and laser light source device |
| CN107699098A (en) * | 2017-10-23 | 2018-02-16 | 博立尔化工（扬州）有限公司 | A kind of epoxy acrylic resin and its preparation method and application |
| CN108026436A (en) * | 2015-09-09 | 2018-05-11 | 百事可乐公司 | Method for providing the polymer for including hexagonal boron nitride |
| CN108384131A (en) * | 2018-03-08 | 2018-08-10 | 广东纳路纳米科技有限公司 | White graphite alkene modified polystyrene composite material and preparation method thereof |
| CN111423684A (en) * | 2020-04-30 | 2020-07-17 | 杨勇华 | Boron nitride graft modified epoxy acrylic resin insulating material and preparation method thereof |
| CN111484626A (en) * | 2020-04-24 | 2020-08-04 | 叶笃梁 | Modified boron nitride grafted waterborne acrylic resin insulating material and preparation method thereof |
| CN116251719A (en) * | 2023-03-24 | 2023-06-13 | 广西桂科院铝业有限公司 | Light-weight anticorrosion aluminum alloy material electric vehicle frame |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060229406A1 (en) * | 2005-03-24 | 2006-10-12 | Silverman Lee A | Process for uniformly dispersing particles in a polymer |
| CN101280064A (en) * | 2008-05-28 | 2008-10-08 | 西南交通大学 | Preparation of carbonaceous inorganic material-polymer composite material |
-
2012
- 2012-03-21 CN CN201210076579.0A patent/CN102618141B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060229406A1 (en) * | 2005-03-24 | 2006-10-12 | Silverman Lee A | Process for uniformly dispersing particles in a polymer |
| CN101280064A (en) * | 2008-05-28 | 2008-10-08 | 西南交通大学 | Preparation of carbonaceous inorganic material-polymer composite material |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9647303B2 (en) | 2012-04-20 | 2017-05-09 | National Institute Of Clean-And-Low-Carbon Energy | Energy storage system preventing self from overheating, a method for preventing energy storage system from overheating and a method for forming a heat dissipation coating on energy storage system |
| WO2013155700A1 (en) * | 2012-04-20 | 2013-10-24 | 北京低碳清洁能源研究所 | Energy storage system preventing self from overheating, a method for preventing energy storage system from overheating, and a method for forming a heat-dissipation coating layer on energy storage system |
| CN102964972A (en) * | 2012-11-06 | 2013-03-13 | 河北工业大学 | Composite intensified heat dissipation coating containing graphene or graphene oxide and preparation method of coating |
| CN103172924A (en) * | 2013-04-17 | 2013-06-26 | 天津大学 | High-thermal conductivity polymer composite material and preparation method thereof |
| CN103613698A (en) * | 2013-11-26 | 2014-03-05 | 王鹏飞 | Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin |
| CN105237991A (en) * | 2014-10-29 | 2016-01-13 | 中山市四维家居照明有限公司 | European-style LED (light-emitting diode) ceiling lamp |
| CN108026436A (en) * | 2015-09-09 | 2018-05-11 | 百事可乐公司 | Method for providing the polymer for including hexagonal boron nitride |
| CN108026436B (en) * | 2015-09-09 | 2021-08-13 | 百事可乐公司 | Method for providing a polymer comprising hexagonal boron nitride |
| CN105371254A (en) * | 2015-11-27 | 2016-03-02 | 海信集团有限公司 | Wavelength conversion device, preparation method thereof and laser light source device |
| CN107699098A (en) * | 2017-10-23 | 2018-02-16 | 博立尔化工（扬州）有限公司 | A kind of epoxy acrylic resin and its preparation method and application |
| CN107699098B (en) * | 2017-10-23 | 2020-01-07 | 博立尔化工（扬州）有限公司 | Epoxy acrylic resin and preparation method and application thereof |
| CN108384131A (en) * | 2018-03-08 | 2018-08-10 | 广东纳路纳米科技有限公司 | White graphite alkene modified polystyrene composite material and preparation method thereof |
| CN111484626A (en) * | 2020-04-24 | 2020-08-04 | 叶笃梁 | Modified boron nitride grafted waterborne acrylic resin insulating material and preparation method thereof |
| CN111423684A (en) * | 2020-04-30 | 2020-07-17 | 杨勇华 | Boron nitride graft modified epoxy acrylic resin insulating material and preparation method thereof |
| CN111423684B (en) * | 2020-04-30 | 2022-01-04 | 珠海三臻新材料科技有限公司 | Boron nitride graft modified epoxy acrylic resin insulating material and preparation method thereof |
| CN116251719A (en) * | 2023-03-24 | 2023-06-13 | 广西桂科院铝业有限公司 | Light-weight anticorrosion aluminum alloy material electric vehicle frame |
| CN116251719B (en) * | 2023-03-24 | 2023-11-21 | 广西桂科院铝业有限公司 | Light-weight anticorrosion aluminum alloy material electric vehicle frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102618141B (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102618141B (en) | Modified acrylate heat-dissipation powder coating as well as preparation method and application thereof | |
| CN102676010B (en) | Solvent acrylic ester heat dissipation coating, and preparation method and application thereof | |
| CN102702887B (en) | Heat sink material, preparation method and application thereof | |
| CN102391799B (en) | Substrate-free pressure-sensitive acrylic thermal conductive adhesive, preparation method and application thereof | |
| CN102433092B (en) | Pressure-sensitive acrylic acid thermally conductive adhesive, preparation method for same and application thereof | |
| CN101910341B (en) | Thermally conductive adhesives and adhesive tape using the same | |
| CN102533040B (en) | Anti-reflective coatings | |
| CN1206290C (en) | Low gloss powder coatings | |
| CN1122142A (en) | Waterborne core-shell latex polymers | |
| CN106752765A (en) | A kind of toughening modifying low-temperature setting low-luster powdery paints, Preparation method and use | |
| CN1042739C (en) | Fatty acid hydroxyalkylamides as coreactable stabilizers and flow aids for powder coatings | |
| CN102408765A (en) | Ultraviolet ray and electron beam cured heat insulation coating | |
| CN1823144A (en) | Multi-layer coating comprising colour-imparting layer | |
| KR100552888B1 (en) | Thermosetting Powder Coating Composition, Method for Forming Coating Film of the Composition, and Coating Film | |
| CN105885094B (en) | A kind of Heat dissipation composition and the preparation method and application thereof | |
| JP6082890B2 (en) | Heat dissipating coating composition, heat dissipating coating film and article to be coated | |
| CN106118541A (en) | A kind of glue and preparation method thereof and containing the adhesive tape of this glue and components and parts | |
| CN106432581A (en) | Method for preparing ultrafine cross-linked PMMA (polymethyl methacrylate) microspheres narrow in particle size dispersion | |
| CN102229775A (en) | Method for making abrasion-resistant and antistatic floor coating by using waste silicon carbide/ silicon micro powder produced after silicon chip wire cutting | |
| CN208702983U (en) | A kind of brake block of rapid cooling | |
| CN104087216A (en) | Method for preparing cooling adhesive agent used between LED (Light-Emitting Diode) aluminum substrate and radiator | |
| CN107033713A (en) | Dust-proof radiating material and preparation method thereof, laser projection device | |
| CN107987208A (en) | A kind of antistatic acrylic resin | |
| CN107446288A (en) | A kind of PMMA composites | |
| CN1079401C (en) | Solid propenoic acid resin for coating materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |