Knowledge base

UV-curable water- and oil- repellent finish was carried out to impart one-side repellency to the PET fabrics using a formulation of a UV-active fluorocarbon agent and a water soluble photoinitiator. The aqueous formulation was padded on the PET fabrics and was subsequently UV-cured. The unirradiated side of the cured fabrics was made

Energy curable coatings possess several advantages over traditional coatings, including having low levels of volatile organic compounds (VOCs) compared to most traditional coatings. According to the U.S. Environmental Protection Agency (EPA), a VOC is any volatile compound of carbon, excluding methane, carbon monoxide, carbon dioxide

In this paper, a new three-component photoinitiating system based on pyrromethene dyes was shown to exhibit high performance for laser imaging at 532 nm. Pyrromethene dye was used with a reductant coinitiator (Amine) and oxidant coinitiator (Triazine). The initial mechanism of reaction depends on the relative concentration of the oxi

Radiation curing may not operate under the same strict legal requirements as, for example, radiation sterilization, but it is essential that dose is not delivered to product outside specifications without the knowledge of the operator. This is obtained though establishing and understanding the relationships between key parameters (en

For optimum ultraviolet (UV) curing efficiency, the material to be cured must match the specific spectral output of a UV bulb. This output, measured in nanometers at each wavelength throughout the UV range, is the defined spectral measurement used to quantify one UV bulb type from another. Each bulb has its own unique characteristic,

UV powders are generally based on unsaturated (meth)acrylate polyesters and urethane (meth)acrylates, photoinitiators and additives (pigments or fillers). All compounds are solids, which make the formulations environmental friendly.The objective of this work is to correlate the formulations characteristics with the photochemical proc

UV-initiated cationic curing is a way to create useful materials for coatings, sealings and adhesives in diverse application areas. From the past three decades up to now several special development examples are presented from the field of electronics and electro technology.For optimum results from reactive resin chemistry it is neces

The synthesis of organic-inorganic sol-gel coatings was performed using alkoxysilanes bearing either an epoxy or a methacrylate reactive function. These hybrid materials combine numerous advantages such as good adhesion to substrates, abrasion and chemical resistance. Usually, they are synthesized through the successive conventional