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This paper describes how ultra-fine polyamide powders can be used to reach a balance of desiredproperties in UV-curable industrial coatings. To illustrate this, viscosity of the UV system, radiation curing modification, gloss control, coating's friction, additives dispersion within the coating and abrasion resistance were compared for formulations

RadTech International North America (RTNA) has adopted the following government affairs policy statement: UV/EB teéhnology offers end users of inks, coatings, adhesives and related applications a powerful option to comply with requirements of reduced emissions. However, RadTech recognizes that UV/EB is not a universal solution arid does not recomme

This paper reports on investigations on the direct initiation of the photopolymerization of acrylates by irradiation with short-wavelength monochromatic UV light using the 222 nm emission of a KrCI excimer lamp. The reactivity of various commercial acrylates was studied by real-time FTIR-ATR spectroscopy. Laser photolysis experiments and accompanyi

 The surfaces of various polymers were modified by UV irradiation in the presence of gaseous hydrazine. In the case of polystyrene (PS) and poly(2-vinylnaphthalene) (PVN), nitrogen containinggroups 2 I ) were attached onto the surface as evidenced by FTIR and XPS. The hydrophilicity increased significantly as shown by contact angle measurement

Powder coating and the benefits associated with this method of finishing have been profitable utilised for decades. The technology involved and the powder used have been developed and refined to the point where, today, more or less any product that can be powder-coated is treated in this way, for example, refrigerators, washing machines, bicycles a

Urethane functionalities are often introduced into coatings for toughness. This increased toughness is attributed in part to the hydrogen bonding capacity (physical network) of the urethane group. Generally, most of the urethane acrylate raw materials are difunctional or oligomeric. To date, there are a limited number of monofunctional urethane acr

In the early 1 it was reported that heating up or photolyzing a mixture of a difunctional thiol and adifunctional ene resulted in the formation of linear polymers. This polymerization is unique in that it is a step growth type polymerization that proceeds by a free-radical chain mechanism. In the mid 1970s, in monumental work in the radiation curin

HDDA is a welt-known reactive diluent for a wide range of high viscous oligomer resins used in UVcuring technology. Due to environmental constraints, efforts have been made to develop new reactive diluents that can be used as substitutes of HDDA. In this study, a number, of diol diacrylates with varying chain lengths and different degrees of ethoxy