CN102321433A - Preparation method of high temperature resistant and diffuse reflection coating for LED and coating thereof - Google Patents
Preparation method of high temperature resistant and diffuse reflection coating for LED and coating thereof Download PDFInfo
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- CN102321433A CN102321433A CN201110233112A CN201110233112A CN102321433A CN 102321433 A CN102321433 A CN 102321433A CN 201110233112 A CN201110233112 A CN 201110233112A CN 201110233112 A CN201110233112 A CN 201110233112A CN 102321433 A CN102321433 A CN 102321433A
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Abstract
The invention discloses a preparation method of a high temperature resistant and diffuse reflection coating for an LED (light emitting diode). The method comprises the steps of: 1) raw material preparation; 2) dispersion; 3) grinding; 4) secondary dispersion till obtaining a mixture of corresponding fineness and viscosity so as to prepare the coating. The invention also discloses a high temperature resistant and diffuse reflection coating used for an LED and prepared by the method. The method provided in the invention is characterized by simple preparation technology, easy realization and high production efficiency. With good mechanical performance and adhesion, the coating of the invention can be coated on various LED lamps and lanterns, and can work regularly at a high temperature. With the advantages of good diffuse reflection effect, soft and uniform light, high efficiency of light energy utilization and great enhancement of brightness, the coating provided in the invention can better save light source cost and reduce product power consumption.
Description
Technical field
The invention belongs to paint field, be specifically related to high temperature resistant diffuse reflection coating preparation method that a kind of LED of the LED of being applied to lighting field uses and the coating that adopts this method to process.
Background technology
LED (Light Emitting Diode; Photodiode); A new generation's solid cold light source with its impayable energy-saving and environmental protection, long lifetime, controllability high-technology advantage, can be widely used in fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.
China has issued national semiconductor lighting plan in 2003, and has write into national medium-term and long-term development in science and technology plan.The energy-conservation lighting engineering of LED semi-conductor will become one of main flow direction of following Lighting Industry.Along with the constantly progress of technology of LED semiconductor grain in recent years, its function expands illumination to from demonstration, and the LED semi-conductor becomes the optimal selection of alternative conventional incandescent and luminescent lamp solid light source gradually, is one of main flow direction of following new light sources.
But the LED electricity-saving lamp is because itself is not enough below also existing: 1) the LED electricity-saving lamp is the same with ordinary incandescent lamp under alternating-current drives has stroboscopic phenomenon, and common energy-saving lamp does not have stroboscopic phenomenon.Stroboscopic can make the eyes easy fatigue.2) light of each LED bulb is bright excessively, and meeting intense stimulus eyes can not be looked at straight, even the short period of time, and common energy-saving lamp is softer relatively.3) irradiating angle has restriction, generally can only shine 120 °, and common energy-saving lamp almost can shine 360 °.4) brightness in irradiation room is outstanding unlike electricity-saving lamp, because LED only has high brightness in the narrow and small angle of direct-view, and light weakens rapidly after departing from this angle.For this reason, must adopt appropriate means to overcome above shortcoming, and use the diffuse-reflectance coating to come soft light, enlarge shadow surface, a kind of practicable method of can yet be regarded as.European patent EP 1617133 (A2) discloses a kind of cup-shaped LED lamp, and reflecting coating is coated on lamp bottom and inside surface of side wall, to strengthen the output efficiency of light.Chinese patent CN101126487 (A) discloses rice energy-saving environment-friendly road lamp in a kind of LED; The surface of its nanometer reflector has the photocatalyst coating, has both solved the direct projection problem of LED lamp, and the illumination that helps LED promotes photocatalyst reaction; Can dustproof sterilizing; Self keeps a public place clean, and purifies air, and plays the effect of environmental protection.Chinese patent CN1768231A discloses a kind of means of illumination, and its case has been equipped with the diffuse-reflectance coating, and coating comprises a kind of water-based solvent and a kind of sticker.
Existing diffuse reflection coating, visible light diffuse-reflectance efficient is low, and heat-resistant stable property is poor, in addition, has higher reflectivity for guaranteeing coating, and the content of reflectivity particle is generally higher, often causes the not good problem of coating and matrix adhesive force.Use the comparatively successful blue luxuriant and rich with fragrance optical diffuse reflection coating 6080 that has at present; Adopt the baric sulphur formula; Can reach 95% in visible wavelength region internal reflection rate value, but this coating only can use being lower than under 80 ℃ the environment, if be higher than this temperature; This diffuse reflection coating is with obvious xanthochromia even roasting the paste, and reflectivity seriously descends even the no-reflection effect.
Summary of the invention
To above-mentioned deficiency, one of the object of the invention is, the high temperature resistant diffuse reflection coating preparation method who provide that a kind of ME is simple and easy, high temperature resistant, strong adhesion and the good LED of reflecting effect uses;
The object of the invention also is, a kind of coating of implementing the high temperature resistant diffuse reflection coating preparation method that above-mentioned LED uses is provided.
For realizing above-mentioned purpose, technical scheme provided by the present invention is:
The high temperature resistant diffuse reflection coating preparation method that a kind of LED uses, it may further comprise the steps:
(1) preparing material: each component and the weight percent thereof of raw material are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%;
(2) disperse: high-temperature resistant organic silicon resin, white titanium pigment, flaky material, the dispersion agent of corresponding proportional quantity are put into high speed dispersor carry out dispersing and mixing, make mixture;
(3) grind: mixture is transferred to ball mill grinds;
(4) secondary disperses: grind finish after, add the flow agent of corresponding weight proportion toward mixture, and be transferred to and carry out dispersing and mixing in the high speed dispersor, until the mixture that obtains corresponding fineness and viscosity, process coating.
The flaky material of said step (1) is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
High-temperature resistant organic silicon resin in the described step (1) gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
Described step (2), it specifically comprises the steps:
(2.1) in advance the dispersion agent of corresponding proportional quantity and high-temperature resistant organic silicon resin are mixed; Put into high speed dispersor then to realize disperseing also uniform mixing; Start high speed dispersor, the speed setting of this high speed dispersor is 500～800 rev/mins, and jitter time is 20～30 minutes;
(2.2) after step (2.1) finishes; Make mixture, add the white titanium pigment and the flaky material of corresponding proportional quantity then toward this mixture, start high speed dispersor once more; The speed setting of this high speed dispersor is 2000～3000 rev/mins, and jitter time is 10～20 minutes.
Described step (3), it specifically comprises the steps: mixture is transferred in the ball mill, starts ball mill, and the speed setting of this ball mill is 2000～3000 rev/mins, and milling time is 120～240 minutes;
Described step (4), it specifically comprises the steps:
((4.1) add the flow agent of corresponding proportional quantity toward mixture, and are transferred to high speed dispersor;
(4.2) start high speed dispersor and carried out high speed dispersion 10 minutes;
(4.3) detect the fineness and the viscosity of mixture with Hegman grind gage;
(4.4) when the fineness of mixture reaches 20 μ m, viscosity 16～22s, make coating, otherwise repeating step (4.2) is to (4.3).
A kind of coating of implementing the high temperature resistant diffuse reflection coating preparation method preparation that above-mentioned LED uses, its each component and weight percent thereof are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%;
Described high-temperature resistant organic silicon resin gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
Said flaky material is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
Said dispersion agent is the dispersion agent of model BYK180 or AFCONA4560; Said flow agent is the flow agent of model BYK307 or BYK347.
Selection can tolerate 100～160 ℃ of pyritous high-temperature resistant organic silicon resins; Add an amount of rutile titanium dioxide, flaky material, make that coating can works better under 100 ℃ and above temperature, and be difficult for taking place xanthochromia with aging; Can not crack, reflectivity can reach more than 96%.In addition, high-temperature resistant organic silicon resin content can produce stronger sticking power 55～82% with matrix during application.
Utilize rutile titanium dioxide and flaky material to the random diffuse-reflectance of light; Make the light propagation direction of passing that irregular change take place, be equivalent to numerous secondary light source, make light become soft even; Luminous energy is not suffered a loss basically, improves the light output efficiency of LED light fixture greatly.
Coating is made up of rutile titanium dioxide, high-temperature resistant organic silicon resin, dispersion agent and flow agent.Preparation technology is simple, can be coated with on the duraluminum reflex reflector matrix that is contained in all kinds of LED light fixtures, has excellent mechanical properties and sticking power.
Beneficial effect of the present invention is: the preparation technology of method provided by the invention is simple and easy, be easy to realize that production efficiency is high; Coating provided by the invention has better mechanical property and sticking power, can be coated with to be contained on all kinds of LED light fixtures; And can be in works better under the high-temperature condition; Diffuse effect is good, and light is soft evenly, and the efficiency of light energy utilization is high; Strengthen luminance brightness greatly, can save light source cost and the power consumption that reduces product largely.
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, and the high temperature resistant diffuse reflection coating preparation method that present embodiment provides a kind of LED to use, it may further comprise the steps:
(1) preparing material: each component and the weight percent thereof of raw material are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%;
(2) disperse: high-temperature resistant organic silicon resin, white titanium pigment, flaky material, the dispersion agent of corresponding proportional quantity are put into high speed dispersor carry out dispersing and mixing, make mixture;
(3) grind: mixture is transferred to ball mill grinds;
(4) secondary disperses: grind finish after, add the flow agent of corresponding weight proportion toward mixture, and be transferred to and carry out dispersing and mixing in the high speed dispersor, until the mixture that obtains corresponding fineness and viscosity, process coating.
The flaky material of said step (1) is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
High-temperature resistant organic silicon resin in the described step (1) gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
Described step (3), it specifically comprises the steps: mixture is transferred in the ball mill, starts ball mill, and the speed setting of this ball mill is 2000～3000 rev/mins, and milling time is 120～240 minutes;
Described step (4), it specifically comprises the steps:
(4.1) add the flow agent of corresponding proportional quantity toward mixture, and be transferred to high speed dispersor;
(4.2) start high speed dispersor and carried out high speed dispersion 10 minutes;
(4.3) detect the fineness and the viscosity of mixture with Hegman grind gage;
(4.4) when the fineness of mixture reaches 20 μ m, viscosity 16～22s (25 ℃ are coated with the 4# cup), make coating, otherwise repeating step (4.2) is to (4.3).
A kind of coating of implementing the high temperature resistant diffuse reflection coating preparation method preparation that above-mentioned LED uses, its each component and weight percent thereof are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%;
Described high-temperature resistant organic silicon resin gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
Said flaky material is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
Said dispersion agent is the dispersion agent of model BYK180 or AFCONA4560; Said flow agent is the flow agent of model BYK307 or BYK347.
Embodiment 2; A kind of coating of realizing the high temperature resistant diffuse reflection coating preparation method that above-mentioned LED uses; Its each component and weight percent thereof are following: gather alkyl organic resin 67%, rutile titanium dioxide 22%, tabular alumina 8%; BYK180 dispersion agent 2.5%, BYK347 flow agent 0.5%.
Embodiment 3, and the difference of itself and second embodiment is: each component and the weight percent thereof of coating are following: gather alkyl organic resin 67%, rutile titanium dioxide 25%, tabular alumina 5%, BYK180 dispersion agent 2.5%, BYK347 flow agent 0.5%.
Embodiment 4; The difference of itself and second embodiment is: each component and the weight percent thereof of coating are following: epoxy modified silicone resin 60%, rutile titanium dioxide 27%, tabular alumina 10%; AFCONA4560 dispersion agent 2.5%, BYK347 flow agent 0.5%.
Embodiment 5, and the difference of itself and second embodiment is: each component and the weight percent thereof of coating are following: epoxy modified silicone resin 60%, rutile titanium dioxide 30%, talcum powder 7%, BYK180 dispersion agent 2.5%, BYK347 flow agent 0.5%.
Embodiment 6, and the difference of itself and second embodiment is: each component and the weight percent thereof of coating are following: fluorine silicon resin 65%, rutile titanium dioxide 22%, talcum powder 10%, AFCONA4560 dispersion agent 2.5%, BYK307 flow agent 0.5%.
Embodiment 7, and the difference of itself and second embodiment is: each component and the weight percent thereof of coating are following: fluorine silicon resin 65%, rutile titanium dioxide 27%, talcum powder 5%, AFCONA4560 dispersion agent 2.5%, BYK307 flow agent 0.5%.
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 high temperature resistant diffuse reflection coating of the above embodiment of the present invention, and concrete parameter is following:
Table 1
Can find out through the performance index in the table 1; Because the present invention selects to tolerate 100～160 ℃ of pyritous high-temperature resistant organic silicon resins; Add an amount of rutile titanium dioxide, flaky material, make that coating can works better under 100 ℃ and above temperature, and be difficult for taking place xanthochromia with aging; Can not crack, reflectivity can reach more than 96%.In addition, high-temperature resistant organic silicon resin content can produce stronger sticking power 55～82% with matrix during application.Utilize rutile titanium dioxide and flaky material to the random diffuse-reflectance of light; Make the light propagation direction of passing that irregular change take place, be equivalent to numerous secondary light source, make light become soft even; Luminous energy is not suffered a loss basically, improves the light output efficiency of LED light fixture greatly.Coating is made up of rutile titanium dioxide, high-temperature resistant organic silicon resin, dispersion agent and flow agent.Preparation technology is simple, can be coated with on the duraluminum reflex reflector matrix that is contained in all kinds of LED light fixtures, has excellent mechanical properties and sticking power.
Of the above embodiment of the present invention, adopt method same or similar and component and high temperature resistant diffuse reflection coating that other light fixture of obtaining is used, all in protection domain of the present invention with it.
Claims (10)
1. high temperature resistant diffuse reflection coating preparation method that LED uses is characterized in that it may further comprise the steps:
(1) preparing material: each component and the weight percent thereof of raw material are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%;
(2) disperse: high-temperature resistant organic silicon resin, white titanium pigment, flaky material, the dispersion agent of corresponding proportional quantity are put into high speed dispersor carry out dispersing and mixing, make mixture;
(3) grind: mixture is transferred to ball mill grinds;
(4) secondary disperses: grind finish after, add the flow agent of corresponding weight proportion toward mixture, and be transferred to and carry out dispersing and mixing in the high speed dispersor, until the mixture that obtains corresponding fineness and viscosity, process coating.
2. the high temperature resistant diffuse reflection coating preparation method that LED according to claim 1 uses is characterized in that, the flaky material of said step (1) is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
3. the high temperature resistant diffuse reflection coating preparation method that LED according to claim 2 uses; It is characterized in that the high-temperature resistant organic silicon resin in the described step (1) gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
4. the high temperature resistant diffuse reflection coating preparation method that LED according to claim 3 uses is characterized in that, described step (2), and it specifically comprises the steps:
(2.1) in advance the dispersion agent of corresponding proportional quantity and high-temperature resistant organic silicon resin are mixed; Put into high speed dispersor then to realize disperseing also uniform mixing; Start high speed dispersor, the speed setting of this high speed dispersor is 500～800 rev/mins, and jitter time is 20～30 minutes;
(2.2) after step (2.1) finishes; Make mixture, add the white titanium pigment and the flaky material of corresponding proportional quantity then toward this mixture, start high speed dispersor once more; The speed setting of this high speed dispersor is 2000～3000 rev/mins, and jitter time is 10～20 minutes.
5. the high temperature resistant diffuse reflection coating preparation method that LED according to claim 4 uses; It is characterized in that; Described step (3), it specifically comprises the steps: mixture is transferred in the ball mill, starts ball mill; The speed setting of this ball mill is 2000～3000 rev/mins, and milling time is 120～240 minutes.
6. the high temperature resistant diffuse reflection coating preparation method that LED according to claim 5 uses is characterized in that, described step (4), and it specifically comprises the steps:
(4.1) add the flow agent of corresponding proportional quantity toward mixture, and be transferred to high speed dispersor;
(4.2) start high speed dispersor and carried out high speed dispersion 10 minutes;
(4.3) detect the fineness and the viscosity of mixture with Hegman grind gage;
(4.4) when the fineness of mixture reaches 20 μ m, viscosity 16～22s, make coating, otherwise repeating step (4.2) is to (4.3).
7. coating of implementing the high temperature resistant diffuse reflection coating preparation method preparation that the said LED of claim 1 uses is characterized in that its each component and weight percent thereof are following:
High-temperature resistant organic silicon resin 55～82%,
White titanium pigment 16～35%,
Flaky material 0～10%,
Dispersion agent 1.5～5%,
Flow agent 0.5～1%.
8. coating according to claim 7 is characterized in that described high-temperature resistant organic silicon resin gathers alkyl organic resin, epoxy modified silicone resin or fluorine silicon resin for tolerating 100～160 ℃ of pyritous; Said white titanium pigment is that particle size diameter is the rutile titanium dioxide of 100～500nm.
9. coating according to claim 8 is characterized in that, said flaky material is that aluminum oxide or the talcum powder of 1～10 μ m processed by particle size diameter.
10. coating according to claim 9 is characterized in that, said dispersion agent is the dispersion agent of model BYK180 or AFCONA4560; Said flow agent is the flow agent of model BYK307 or BYK347.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102628558A (en) * | 2012-04-19 | 2012-08-08 | 东莞市科磊得数码光电科技有限公司 | Light emitting diode (LED) lamp with light softening structure |
| CN102627893A (en) * | 2012-03-20 | 2012-08-08 | 江苏同辉照明科技有限公司 | Preparation method of high temperature-resistant diffuse reflection paint for lamps |
| CN103555197A (en) * | 2013-11-22 | 2014-02-05 | 安徽世林照明股份有限公司 | High-temperature-resisting diffuse reflection paint for LED (light emitting diode) |
| CN103602262A (en) * | 2013-11-22 | 2014-02-26 | 安徽世林照明股份有限公司 | Preparation method of high temperature-resistant diffuse-reflection coating for LED (Light-Emitting Diode) |
| CN104804578A (en) * | 2014-01-24 | 2015-07-29 | 四川新力光源股份有限公司 | Reflective coating and preparation method thereof |
| CN107727543A (en) * | 2017-10-17 | 2018-02-23 | 佛山市南海港能燃料物料有限公司 | A kind of water-coal-slurry paste-forming properties test method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627893A (en) * | 2012-03-20 | 2012-08-08 | 江苏同辉照明科技有限公司 | Preparation method of high temperature-resistant diffuse reflection paint for lamps |
| CN102627893B (en) * | 2012-03-20 | 2014-05-07 | 江苏同辉照明科技有限公司 | Preparation method of high temperature-resistant diffuse reflection paint for lamps |
| CN102628558A (en) * | 2012-04-19 | 2012-08-08 | 东莞市科磊得数码光电科技有限公司 | Light emitting diode (LED) lamp with light softening structure |
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| CN103555197A (en) * | 2013-11-22 | 2014-02-05 | 安徽世林照明股份有限公司 | High-temperature-resisting diffuse reflection paint for LED (light emitting diode) |
| CN103602262A (en) * | 2013-11-22 | 2014-02-26 | 安徽世林照明股份有限公司 | Preparation method of high temperature-resistant diffuse-reflection coating for LED (Light-Emitting Diode) |
| CN104804578A (en) * | 2014-01-24 | 2015-07-29 | 四川新力光源股份有限公司 | Reflective coating and preparation method thereof |
| CN107727543A (en) * | 2017-10-17 | 2018-02-23 | 佛山市南海港能燃料物料有限公司 | A kind of water-coal-slurry paste-forming properties test method |
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Application publication date: 20120118 |