CN101768410B - Diffuse reflection coating and reflector with the same - Google Patents
Diffuse reflection coating and reflector with the same Download PDFInfo
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- CN101768410B CN101768410B CN 201010105938 CN201010105938A CN101768410B CN 101768410 B CN101768410 B CN 101768410B CN 201010105938 CN201010105938 CN 201010105938 CN 201010105938 A CN201010105938 A CN 201010105938A CN 101768410 B CN101768410 B CN 101768410B
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Abstract
The invention provides a diffuse reflection coating, comprising the following components with the by mass percent: 35 percent to 55 percent of organic silicon resin, 40 percent to 60 percent of anatase titanium dioxide and 1 percent to 5 percent of auxiliary agent, wherein the organic silicon resin adopts silicon resin which can resist the temperature of 100-120 DEG C. The invention also provides a reflector with the diffuse reflection coating. In the diffuse reflection coating, the organic silicon resin which can resist the temperature of 100-120 DEG C is selected, then a proper amount of anatase titanium dioxide is added so as to lead the diffuse reflection coating to be capable of normally working under the temperature of about 100 DEG C or above 100 DEG C, yellowing and aging are not easily to occur under high temperature, cracks are not generated, and stronger adhesive force is generated with a base body. In addition, the anatase titanium dioxide can lead the coating to show high reflectance, can not lead the reflectance to be reduced, and has wide application prospect.
Description
Technical field
The invention belongs to optic technology, be specifically related to a kind of diffuse reflection coating of hot environment and reflex reflector with diffuse-reflectance coating of being applicable to.
Background technology
Producing and various fields of recent life, optics obtains a wide range of applications.Such as light source, light fixture, display unit etc.Wherein use and maximum will count light fixture, in order to improve its illuminating effect, be typically provided with a reflex reflector.In fact, reflex reflector is applied on light fixture usually, but its range of application is not limited on light fixture, and such as some back lighting devices, panel display apparatus etc. all can be adopted reflex reflector.
The reflex reflector reflection mode divides, and is broadly divided into diffuse-reflectance reflex reflector and specular reflection reflex reflector.The diffuse-reflectance reflex reflector can be divided into following two kinds by surface treatment mode: a kind of is body processing type, and it utilizes material itself to do surface treatment to form diffuse surface; Another kind is application type, by applying coating at material surface to form the diffuse-reflectance coating.
Existing application type diffuse-reflectance reflex reflector, its topcoating is generally white paint, enamel etc., and reflection efficiency is low, generally lower than 80%.And thermotolerance is not good, generally can only work under lower than the environment of 80 ℃.And most reflex reflector all needs to work under 100 ℃ or above temperature environment, as is applied to the reflex reflector of halogen tungsten lamp, Metal-halogen lamp, high-pressure mercury lamp, and at this moment, the one-tenth reflex reflector of this employing surface coating paint mode system will be difficult to meet the demands.
In addition, in existing application type diffuse-reflectance reflex reflector, on the one hand, the reflectivity particle need to be adopted higher content, for example more than 60%, guarantee that like this coating has higher reflectivity; On the other hand, because the reflectivity particle content is higher, and base material viscosity is not enough, often has the problem of diffuse-reflectance coating and reflex reflector basal body binding force deficiency.For example, some diffuse-reflectance coating adopts adhesive resin as base material, yet this adhesive resin temperature tolerance is not enough, and xanthochromia and aging easily occurs on its surface under comparatively high temps, cracks, and reduces reflectivity.
Summary of the invention
In view of this, provide a kind of high temperature resistant, diffuse reflection coating that reflectivity is high, and a kind of high temperature resistant, reflex reflector with diffuse-reflectance coating that reflectivity is high.
A kind of diffuse reflection coating, it comprises the following composition according to quality percentage composition meter:
Silicone resin 35%-55%;
Anatase titanium dioxide 40%-60%;
Wherein, described silicone resin adopts the silicone resin of 100-120 ℃ of temperature of ability.
And, a kind of reflex reflector with diffuse-reflectance coating, it comprises reflex reflector matrix and the diffuse-reflectance coating that is formed on described reflex reflector matrix, described diffuse-reflectance coating comprises above-mentioned diffuse reflection coating.
In described diffuse reflection coating, select the silicone resin of 100-120 ℃ of high temperature of ability, add appropriate anatase titanium dioxide, make diffuse reflection coating can work in 100 ℃ of left and right or the temperature more than 100 ℃, and also be difficult for xanthochromia and aging occurs under this high temperature, can not crack.In addition, the content of silicone resin can produce stronger sticking power at 35%-55% with matrix during application.Due to be silicone resin take 35%-55% content as base material, anatase titanium dioxide content also can allow coating show very high reflectivity when 40%-60%, and its reflectivity is reduced.In described reflex reflector, adopt above-mentioned coating, with resistance to elevated temperatures and the reflectivity of raising coating, and when using hot environment, silicone resin can produce stronger sticking power with matrix.And coating do not need repeatedly to spray, thereby simplifies construction technology, reduces construction cost, has broad application prospects.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the reflector structure schematic diagram with diffuse-reflectance coating of the embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The diffuse reflection coating of the embodiment of the present invention comprises the following composition according to quality percentage composition meter:
Silicone resin 35%-55%;
Anatase titanium dioxide 40%-60%;
Wherein, described silicone resin adopts the silicone resin of 100-120 ℃ of temperature of ability.
Preferably, silicone resin can adopt poly-alkyl organic resin, poly-aryl silicone resin or polyoxyethylene alkyl aryl base silicone resin.In a preferred embodiment, silicone resin adopts the silicone resin of 120 ℃ of temperature of ability.It is the self-drying type environmental protection silicone resin of KE-560 that this silicone resin can adopt as model, and model is that silicone resin and the model of KP-2 is the silicone resin of KP-5, and its quality percentage composition is preferably 43%-48%.Select the silicone resin of 100-120 ℃ of high temperature of ability due to silicone resin, add appropriate anatase titanium dioxide, make diffuse reflection coating can work at 100 ℃ of left and right or the temperature more than 100 ℃, and also be difficult for xanthochromia and aging occurs under this high temperature, can not crack.
Diffuse reflection coating comprises the titanium dioxide of anatase titanium dioxide, compares with other type, has higher weathering resistance and glossiness, and with silicone resin, stronger bonding force is arranged.Even anatase titanium dioxide content at 40%-60%, also can allow coating show very high reflectivity.
the content of auxiliary agent is preferably 1-3%, auxiliary agent can comprise that the quality percentage composition is 0.5%～1.5% flow agent, can comprise that also the quality percentage composition is 0.5%～1.5% defoamer, flow agent can be polyester resin change properties of organic silicon solution (as H450), fluorine modified polyacrylate (as H460), the polysiloxane of aralkyl modification (as H470), act as effective reduction coating surface tension force, improve its levelling property, improve liquidity/thixotropy, homogeneity and perviousness, reduce the possibility that produces spot and spot when brushing, increase spreadability, make film forming even, nature.Defoamer can be polysiloxane solution (as S301), broken bubble polymer poly siloxanes (as S302), solutions of vinyl polymers (as S303), act as and make the coating surface local surface tension reduce, occur unbalanced phenomena, foam is eliminated, and had both simultaneously and disappear, press down the bubble effect.In other embodiments, auxiliary agent also can comprise other reagent, is not limited to above description.
The preparation method of above-mentioned diffuse reflection coating is: take silicone resin as base paint, add the titanium dioxide by molecular sieve filtration, fully mix making it to become suspension solution.Then the auxiliary agent that adds predetermined proportion fully mixes again, obtains above-mentioned diffuse reflection coating.
In the present embodiment, diffuse reflection coating can be made into particulate state or Powdered, and during application, direct spraying is in article surface.This particulate state or pulverous coating are convenient to packing, storage and transportation etc., and construction also more for convenience.
See also Fig. 1, show the reflex reflector 10 that adopts above-mentioned coating.This reflex reflector 10 comprises matrix 1 and diffuse-reflectance coating 2, and diffuse-reflectance coating 2 is formed at matrix 1 surface.The material of matrix 1 can be but be not limited to stainless steel, metal (as aluminium) or plastics etc., and its shape can for plate shaped, spherical, paraboloidal or other complicated shape, specifically be decided according to actual needs.
Its floating coat 2 adopts the above-mentioned diffuse reflection coatings of coating, and the mode by spraying is formed at matrix 1 surface.During concrete the application, pre-treatment is first carried out on matrix 1 surface, and for example sandblasting or chemical treatment to remove oil stain and the corrosion on surface, like this, can guarantee the good adhesion between the diffuse reflection coating of matrix 1 surface and the present embodiment.Spraying can be adopted various spraying coating process, for example electrostatic painting process, hot-spraying techniques and fluidized bed dipping technique etc.The coat-thickness of spraying is 0.4～0.6 millimeter.
See also table 1, show that the diffuse reflection coating of the present embodiment and existing coating property compare.As shown in Table 1, the reflectivity of the diffuse reflection coating of the present embodiment is more than 90%, and is more much higher than the reflectivity of existing white paint or enamel paint, and without xanthochromia, just occurring xanthochromia more than 80 ℃ unlike existing coating.Also without obvious crackle, just occurring more than 80 ℃ unlike existing white paint coating in addition.
Table 1 diffuse reflection coating and other coating property are relatively
| Test event | Silicone resin coating | White paint (only example, or other base material with comparison, can be in referenced patents) | Enamel |
| The heatproof degree (℃) | 100-120 | ＜80 | ＜80 |
| Reflectivity | ＞90％ | ＜80％ | ＜80％ |
| Xanthochromia | Nothing | Produce xanthochromia higher than 80 ℃ | Produce xanthochromia higher than 80 ℃ |
| Crackle | Nothing | Crack higher than 80 ° | Nothing |
Below illustrate diffuse reflection coating by a plurality of embodiment difference form with and the aspect such as performance.
The diffuse reflection coating of the present embodiment comprises poly-alkyl organic resin, anatase titanium dioxide, flow agent, defoamer, and flow agent is polyester resin change properties of organic silicon solution, and defoamer is polysiloxane solution, and its proportion of composing is (by mass percentage):
Poly-alkyl organic resin 45.5%
Anatase titanium dioxide 53%
Flow agent 0.7%
Defoamer 0.8%.
In reflex reflector, the coat-thickness that applies this coating is 0.4mm with this application of paints, and the reflectivity that records this coating is 93%.
The diffuse reflection coating of the present embodiment comprises poly-aryl silicone resin, anatase titanium dioxide, flow agent, defoamer, flow agent is the fluorine modified polyacrylate, defoamer is broken bubble polymer poly siloxanes, and its proportion of composing is (by mass percentage):
Poly-aryl silicone resin 48%
Anatase titanium dioxide 50%
In reflex reflector, coating 2 thickness that apply this coating are 0.5mm with this application of paints, and the reflectivity that records this coating is 90%.
Embodiment 3
The diffuse reflection coating of the present embodiment comprises polyoxyethylene alkyl aryl base silicone resin, anatase titanium dioxide, flow agent, defoamer, flow agent is the polysiloxane of aralkyl modification, defoamer is solutions of vinyl polymers, and its proportion of composing is (by mass percentage):
Polyoxyethylene alkyl aryl base silicone resin 43%
Anatase titanium dioxide 54%
Flow agent 1.5%
Defoamer 1.5%.
In reflex reflector, coating 2 thickness that apply this coating are 0.6mm with this application of paints, and the reflectivity that records this coating is 92%.
Embodiment 4
The diffuse reflection coating of the present embodiment comprises poly-alkyl organic resin, anatase titanium dioxide, flow agent, defoamer, and flow agent is polyester resin change properties of organic silicon solution, and defoamer is polysiloxane solution, and its proportion of composing is (by mass percentage):
Poly-alkyl organic resin 47%
Anatase titanium dioxide 51%
Flow agent 0.5%
Defoamer 1.5%.
In reflex reflector, coating 2 thickness that apply this coating are 0.45mm with this application of paints, and the reflectivity that records this coating is 92.5%.
In described diffuse reflection coating, select the silicone resin of 100-120 ℃ of high temperature of ability, add appropriate anatase titanium dioxide, make diffuse reflection coating can work at 100 ℃ of left and right or above temperature, and also be difficult for xanthochromia and aging occurs under this high temperature, can not crack.In addition, the content of silicone resin can produce stronger sticking power with matrix during application more than 35%-55%.Due to be silicone resin take 35%-55% content as base material, anatase titanium dioxide content also can allow coating show very high reflectivity when 40%-60%, and its reflectivity is reduced.In described reflex reflector, adopt above-mentioned coating, with resistance to elevated temperatures and the reflectivity of raising coating, and when using hot environment, silicone resin can produce stronger sticking power with matrix.And coating do not need repeatedly to spray, thereby simplifies construction technology, reduces construction cost, has broad application prospects.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. diffuse reflection coating, it comprises the following composition according to quality percentage composition meter:
Silicone resin 35%-55%;
Anatase titanium dioxide 40%-60%;
Auxiliary agent 1%-5%;
Wherein, described silicone resin adopts the silicone resin of 100-120 ℃ of temperature of ability, and described silicone resin is poly-alkyl organic resin, poly-aryl silicone resin or polyoxyethylene alkyl aryl base silicone resin.
2. diffuse reflection coating as claimed in claim 1, is characterized in that, the quality percentage composition of described silicone resin is 43%-48%.
3. diffuse reflection coating as claimed in claim 1, is characterized in that, the quality percentage composition of described anatase titanium dioxide is 50-55%.
4. diffuse reflection coating as claimed in claim 1, is characterized in that, described auxiliary agent comprises that the quality percentage composition is that 0.5%～1.5% flow agent and quality percentage composition are 0.5%～1.5% defoamer.
5. diffuse reflection coating as claimed in claim 1, is characterized in that, described silicone resin adopts the silicone resin of 120 ℃ of temperature of ability.
6. reflex reflector with diffuse-reflectance coating, it comprises the reflex reflector matrix and is formed at diffuse-reflectance coating on described reflex reflector matrix, it is characterized in that, described diffuse-reflectance coating comprises as the described diffuse reflection coating of claim 1-5 any one.
7. the reflex reflector with diffuse-reflectance coating as claimed in claim 6, is characterized in that, the thickness of described diffuse-reflectance coating is 0.4～0.6 millimeter.
8. the reflex reflector with diffuse-reflectance coating as claimed in claim 6, is characterized in that, the material of described reflex reflector matrix is stainless steel, metal or plastics.
9. the reflex reflector with diffuse-reflectance coating as claimed in claim 6, is characterized in that, described diffuse-reflectance coating is single-layer coating.
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| CN 201010105938 CN101768410B (en) | 2010-01-29 | 2010-01-29 | Diffuse reflection coating and reflector with the same |
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| CN 201010105938 CN101768410B (en) | 2010-01-29 | 2010-01-29 | Diffuse reflection coating and reflector with the same |
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| CN101768410A CN101768410A (en) | 2010-07-07 |
| CN101768410B true CN101768410B (en) | 2013-06-12 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321433A (en) * | 2011-08-15 | 2012-01-18 | 东莞上海大学纳米技术研究院 | Preparation method of high temperature resistant and diffuse reflection coating for LED and coating thereof |
| US8888307B2 (en) | 2011-11-18 | 2014-11-18 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Reflector plate and backlight system |
| CN102374489B (en) * | 2011-11-18 | 2014-05-14 | 深圳市华星光电技术有限公司 | Backlight system |
| CN102702896A (en) * | 2012-06-21 | 2012-10-03 | 上海三思电子工程有限公司 | High diffuse reflection paint for lamp and preparation method of high diffuse reflection paint |
| CN103740199A (en) * | 2013-12-13 | 2014-04-23 | 西安Tcl软件开发有限公司 | High-diffuse-reflection paint and preparation method thereof |
| CN103898767B (en) * | 2014-04-23 | 2015-12-30 | 哈尔滨工业大学 | A kind of preparation method of aramid fiber surface coating |
| CN106977987A (en) * | 2016-01-18 | 2017-07-25 | 沃得环光(深圳)科技有限公司 | A kind of high diffusing reflection nanometer reflecting coating |
| CN110058212A (en) * | 2019-05-15 | 2019-07-26 | 上海炬佑智能科技有限公司 | Target and TOF camera demarcate integrated system |
| CN110466227A (en) * | 2019-08-05 | 2019-11-19 | 张忠松 | Reflective silica gel ornamental sheet material and preparation method thereof |
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| CN1318603A (en) * | 2000-04-20 | 2001-10-24 | 上海敏涛实业发展有限公司 | Air purifying paint |
| CN1753781A (en) * | 2003-02-25 | 2006-03-29 | 新日本制铁株式会社 | Reflector-use precoat metal plate |
| CN101602909A (en) * | 2009-07-01 | 2009-12-16 | 中山泰腾灯饰有限公司 | A kind of diffuse reflection coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007217622A (en) * | 2006-02-20 | 2007-08-30 | Meiji Natl Ind Co Ltd | Powder coating for high-diffusion and high-reflection, and reflective plate using the powder coating |
| JP2008038116A (en) * | 2006-08-10 | 2008-02-21 | Asahi Kasei Chemicals Corp | Emulsion having high endurance |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318603A (en) * | 2000-04-20 | 2001-10-24 | 上海敏涛实业发展有限公司 | Air purifying paint |
| CN1753781A (en) * | 2003-02-25 | 2006-03-29 | 新日本制铁株式会社 | Reflector-use precoat metal plate |
| CN101602909A (en) * | 2009-07-01 | 2009-12-16 | 中山泰腾灯饰有限公司 | A kind of diffuse reflection coating |
Non-Patent Citations (2)
| Title |
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| JP特开2007-217622A 2007.08.30 |
| JP特开2008-38116A 2008.02.21 |
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