𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A comparison of the emission characteristics of UV-LEDs and fluorescent lamps for polymerisation applications

✍ Scribed by S.L. McDermott; J.E. Walsh; R.G. Howard

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
222 KB
Volume
40
Category
Article
ISSN
0030-3992

No coin nor oath required. For personal study only.

✦ Synopsis

Ultraviolet (UV) fluorescent lamps are widely used in the manufacturing process of biomaterials. The possibility of replacing these lamps with ultraviolet light emitting diodes (UV-LEDs) was investigated and the results are presented here. A number of emission characteristics, including the spectral output and intensity of both light sources were measured and compared. The warm up time of the UV-LED was found to be faster than that of the fluorescent lamp while their stabilities were found to be comparable. The ability of each source to initiate photopolymerisation in a biomaterial sample was monitored using Fourier Transform Infrared spectroscopy and the percentage polymerisation calculated. The results presented here show that UV-LEDs are a viable alternative to UV fluorescent lamps in the manufacturing process of biomaterials.

📜 SIMILAR VOLUMES

Application of a high-performance liquid
Application of a high-performance liquid chromatographic fluorescence method for the rapid determination of α-tocopherol in the plasma of cattle and pigs and its comparison with direct fluorescence and high-performance liquid chromatography—ultraviolet detection methods.
✍ C.H. McMurray; W.J. Blanchflower 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 468 KB

## High-performance liquid chromatography is used to develop a sensitive method for the determination of tocopherol levels in the plasma of cattle and pigs. This method is compared with a similar method using UV detection and one using direct fluorescence determination of tocopherol. Finally a do

Application of FeOC1 derivatives as cath
Application of FeOC1 derivatives as cathode materials for secondary lithium battery: II. Comparison of the discharge and charge characteristics of γ-FeOOH prepared from the intercalation compound of FeOC1 and 4-aminopyridine with those of FeOOH intercalated with aniline (a-FeOOH(AN))
✍ Kiyoshi Kanamura; Hikari Sakaebe; Zen-ichiro Takehara 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 259 KB

The discharge and charge characteristics of y-FeOOH products prepared from the intercalation compound of FeOCI and 4-aminopyridine were investigated in lithium cells and compared with those of FeOOH prepared from the intercalation compound of FeOCI and aniline (a-FeOOH(AN)) . The polarization of y-F