The elimination of mercury, low energy consumption, and heat make the ultraviolet light-emitting diode (UV-LED) system emerge as a promising alternative to conventional UV-mercury radiation coating. Hence, series hydrophobic coatings based on urethane acrylate oligomer fluorinated monomer via UV-LED photopolymerisation was designed in this paper. presence fluorine component at 1160 cm−1, 1235 1...

This article describes the modification of UV-curable coatings with silicon aluminum oxynitride (Sialon) and oxide (Alu C), which improve hydrophobicity coating surface scratch hardness. The contact angle is greater due to roughness being enhanced inorganic fillers. Improved resistance results from formation a sliding layer triggered by diffusion Sialon or alumina on surface. One can observed a...

The PRINT(®) (pattern replication in non-wetting templates) process has been developed as a simple, gentle way to pattern films or generate discrete particles in arrays out of either pure biological materials or biomolecules encapsulated within polymeric materials. Patterned films and particle arrays can be fabricated in a wide array of sizes and shapes using Fluorocur(®) (a UV-curable perfluor...

We demonstrate passive capillary patterning of channel walls with a liquid in situ. Patterning is performed using a novel 3D capillary valve system combining three standard capillary stop valves. A range of different patterns is demonstrated in three channel walls. Capillary patterning was designed for precise in situ patterning of phase-change materials (e.g. UV curable hydrogels, gels, resins...

We report on a simple and effective process that allows direct imprinting of microand nanostructures on non-flat surfaces using flexible polymer stamps. Pattern imprinting was tried using a UV-curable polymer blend containing poly(propylene glycol) diacrylate, trimethylolpropane triacrylate and a photoinitiator. The UV-resist was dispensed manually on convex and concave surfaces of a glass lens...

We describe the preparation and electro-optic characteristics of a color display which makes use of the selective reflection of cholesteric droplets embedded in a polymer film. The polymer film is formed by a UV-curable adhesive, as opposed to the thermoplastic polymers which have been used previously. The new systems are easy to prepare and suitable for operation at room temperature. They show...

We use the soft lithography technique to fabricate a polymeric waveguide Bragg grating filter. Master grating structure is patterned by e-beam lithography. Using an elastomeric stamp and capillary action, uniform grating structures with very thin residual layers are transferred to the UV curable polymer without the use of an imprint machine. The waveguide layer based on BCB optical polymer is f...