S series photoluminescent pigment is alkaline earth silicate photoluminescent material created by our company and the invention patents have been granted in many countries and regions, for example, China, America, Japan and European Union. These products can glow more than 12 hours after absorbing various visible light or ultraviolet radiation. The photoluminescent pigment has excellent stability and weatherability. The feature of S series photoluminescent pigment is the tunable body color and glowing color along with the change of chemical composition of silicate. The physical properties of the typical product in S series photoluminescent pigment are as tabled below:
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PRODUCTS
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SB-8
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Light white
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Emitting color
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Sky blue
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Composition
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MeO·xSiO2：Eu（Me=Ca、Sr、Mg、Ba；x=0.5-1.5）
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Excitation wavelength（nm）
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200-450
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Emission wavelength peak（nm）
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470
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Medium Particle size （μm）⑴
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1-100
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Afterglow brightness（mcd/m2）⑵
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5-150
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Afterglow time
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≥12h
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Light resistance
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≥1000h
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Chemical stability
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Excellent, Slowly decomposed in water (The product can be waterproof by further treatment)
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Temperature tolerance
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Luminescent brightness is weaken along with the elevated temperature and extended time during 250-600℃
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Allowable temperature
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≦250℃
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Density（g/cm3）
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3.6
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⑴The unit of particle size is μm. The particle size is expressed by Medium Particle size (D50).
⑵The unit of afterglow brightness is mcd/m2. All the tests are executed according to the standard of DIN67510, which is to detect afterglow brightness of the sample for 10 min excited by D65 standard light source illumination of 1000LX for 5 min.
Excitation and emission spectra of SB-8
Download： photoluminescent material.pdf |
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