Analysis of UV-B Absorption by Fiber Plastic/Glass with Various Colors using UV-VIS Spectrometer

Sunlight is the main source of light for living things on earth. Sunlight contains various spectra of electromagnetic waves including ultraviolet and visible light. Various effects of UV B radiation are already known. This study aims to determine the absorption characteristics of UV-B of several transparent materials. The transparent materials used in this study are fiber plastic and mica film plastic in blue, green and natural. To find out the absorption spectrum of the transparent material, the researcher used a UV-Vis spectrometer. Measurement data shows that glass fiber and the blue mica film POP-1 materials have very strong UV-B absorption which is more than 90%. While other mica film materials have various UV-B absorption at the beginning and at the end of the various UV-B spectrum with 70% values. Blue Mica film POP-1 material has absorption of about 94%. Green NIPON mica film material has 86% absorption at the beginning of the spectrum and about 82% at the end. The absorption of materials towards UV-B radiation is not linear with the increased wavelength.