Knowledge base

This knowledge base contains all articles and proceedings ever presented at RTE conferences and seminars. You may search through the database using the filters below. Articles are free of charge for our members (after login).
Beneficial Effect of CO2 on the UV-curing of Acrylate Coatings
The inhibitory effect of oxygen on the photoinitiated polymerization of a polyurethane-acrylate resin has been completely eliminated by operating in a carbon dioxide atmosphere. The high-speed polymerization was followed in real-time by infrared spectroscopy, thus allowing conversion versus time curves to be directly recorded for curing reactions o
Covalently bonded Camphorquinone - Amine Photoinitiating Systems
Dental filling composites based on dimethacrylates have been in clinical use for several decades. Byfree-radical polymerisation of the matrix monomers, a three-dimensional network is formed. Theselection of the monomers strongly influences the reactivity, viscosity and polymerisation shrinkage of the composite material, as well as the mechanical pr
A. Cleavable Photoinitiators with Reduced Oxygen Sensitivity
Radiation curing is a well established and highly efficient method for crosslinking of coatings, printing inks 1 Photoinitiators 2 the key component in such systems have a great influence on storage life, curing rate and curing depth, but also on double bond conversion (DBC) and surface cure. Among the large group of P1 structures, hydroxyalkyiphen
New Coinitiator-free Benzophenone Derived Photoinitiator
Radiation curing is a well established and highly efficient method for crosslinking of coatings, printing inks etc.' Photoinitiators 23 the key component in such systems have a great influence on storage life, curing rate and curing depth, but also on double bond conversion (DBC) and surface cure. Among the large group of P1 structures, benzophenon
Polymerization Degree Effects On The Photocrosslinking of Epoxyacrylate Bisphenola Oligomers
In the UV-curable formulations the most important component is very often the oligomer. Its choice exercises the control over some chemical and physical characteristics affecting the properties of the UV-cured materials, such as ,) gloss, ii) chemical resistance, iii) scratch resistance, ii,) mechanical resistance and non-yellowing 1]. These proper
Modification of Cationic Curable Silicone Release Coating - Formulation with Oxetane Derivatives -
UV-cationic curabTe silicone release coatings, which are based on cycloaliphatic epoxy-functional polydimethylsiloxane (CE-PDMS) in combination with onium salts, can be counted as well-established commercial products. Despite their good performance, such as not subjecting to oxygen inhibition and high throughput based on their high curing speeds, t
Photopolymerization Reactions For Imaging Applications : Role Of Multicomponent Photoinitiating Systems
The role of multicomponent photoinitiating systems - based on various combinations of a bis imidazole derivative, an aminobenzophenone, an iodonium salt and an amine - in the photopolymerization of an acrylate formulation under light irradiation at 365 nm, has been investigated. Two photoinitiation processes occur a direct process where the light i
Radiation Processing of Fluoropolymers
Fluoropolymers represent a group of rather specialized polymeric materials. The chemistry of the majority of fluoropolymers is derived from compounds used in the refrigeration industry.