Formulation of calcium based 8-HQ fluorescent paint for fluorescent paint applications

IF 2.2 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters: X Pub Date : 2023-09-01 DOI:10.1016/j.mlblux.2023.100211

Ritesh Raikundliya , N. Thejo Kalyani , S.J. Dhoble

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Abstract

We report the formulation of luminous paints with calcium-based quinoline complex, bis(8-hydroxyquinoline) (calcium) – Caq₂ as a pigment (where Ca = Calcium, q = 8-hydroxy quinoline). Fourier transform infrared (FTIR) spectra, UV–Visible absorption, Photoluminescence (PL) spectra and photometric evaluation of the pigment were probed to evaluate its structural, optical and photometric properties. The excitation spectra of Caq₂ pigment portrays a broad excitation peak at 370 nm, while emission spectra reveal a broad peak, registered at 473 nm which falls in the bluish-green region of the visible spectrum. Further, fluorescent paints were formulated on glass slides with epoxy resin/ urea formaldehyde as binder and toluene as solvent. The results reveal the change in intensity of the painted panels in the following order I_{ZnO Epoxy(50%)} > I_Epoxy based pure pigment > I_UF based pure pigment > I_{ZnO Epoxy(10%)} > I_{ZnO UF(10%)}. These results reveal the potential of the pigment as one of the components of fluorescent paint.

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用于荧光涂料应用的钙基8-HQ荧光涂料的配方

我们报道了以钙基喹啉络合物，双(8-羟基喹啉)(钙)- Caq2为颜料(其中Ca =钙，q = 8-羟基喹啉)的发光涂料配方。对颜料的傅里叶变换红外(FTIR)光谱、紫外可见吸收光谱、光致发光(PL)光谱和光度评价进行了探讨，以评价颜料的结构、光学和光度性能。Caq2颜料的激发光谱在370 nm处有一个宽的激发峰，而发射光谱在473 nm处有一个宽的激发峰，位于可见光谱的蓝绿色区域。以环氧树脂/脲醛为粘结剂，甲苯为溶剂，在玻片上配制荧光涂料。结果表明，涂覆板强度的变化顺序为:IZnO环氧树脂(50%)>环氧基纯颜料>IUF纯颜料;IZnO Epoxy(10%) >IZnO佛罗里达大学(10%)。这些结果揭示了该颜料作为荧光涂料成分之一的潜力。

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