This paper examines the effects of some key operating parameters of UV sources on the curing of various UV inks, coatings and adhesives. The effects of peak UV wavelength and peak intensity are quantitatively evaluated using FT-IR. The data are helpful in guiding both formulators, raw material suppliers and end users to better understand the impact of the UV sources, especially UV LED sources, ...

We report the full characterization of a photocurable dimethacrylate-based formulation modified with small amounts (1 and 3 wt%) polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP). The UV curable is mixture bisphenol A bis(2-hydroxy-3-methacryloxypropyl)ether (Bis-GMA) triethylene glycol dimethacrylate (TEGDMA) contains phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (Irga...

Ultraviolet light (UV)-curable three dimensional (3D) printing has emerged as a prominent additive manufacturing technology, finding diverse applications in industries such figurine production, artifact restoration, dentistry, jewelry design, and etc. For liquid crystal display (LCD) type UV-curable 3D printers, achieving uniform collimated distribution of the illumination system holds paramoun...

Light redirecting devices usually increase the daylight illuminance level far from the window but also affect the visual comfort to some extent. Some designs achieve high redirection rate but are not transparent, others offer a partial view through but with reduced performance. Miniaturizing the light redirecting mirrors and encapsulating them has the potential to increase both view and perform...

We propose a highly oriented photochromic dye film for an ultraviolet (UV)-sensing layer, where spirooxazine (SO) derivatives are aligned with the liquid crystalline UV-curable reactive mesogens (RM) using a guest-host effect. For effective electrical UV sensing with a simple metal-insulator-metal structure, our results show that the UV-induced switchable dipole moment amount of the SO derivati...