辐射固化介绍-沙多玛.ppt

References, date, place/location Radiation Curing Technology What is Radiation Curing? What is Radiation Curing? “Reacted in Place Technology” Polymerization of reactive molecules by the action of “radiation” Fast curing time (Dry time 1 Second) Potential for 100% reactive ingredients Two possible radiation sources EB (Electron Beam) Curing by accelerated electrons in the engery range of 90 to about 250 KeV (Kilo-elektron-volt) UV (Ultra-Violet ) Curing by UV-light in the specific wave length of 240 to about 420 nm What Can UV/EB Curing do for you? Printing Inks Coatings Adhesives What is the benefit of UV/EB Curing? Environmental Advantages Environmentally friendly – “Green Technology” Reduce or eliminate solvent emissions Acrylate monomers are used as reactive diluents to lower viscosity for application Potential for 100% solids coating system Low or no Volatile Organic Compound’s (VOC) VOC solvents directive 1999/13/CE in the EU End of 2007 a maximum amount of VOC emissions is imposed. Depends on the volume of solvent used per year Pressure on VOC reduction will continue Production Advantages Reduce or eliminate solvent recovery costs Reduce cleaning costs UV or EB energy consumption cost less than gas-fired ovens or driers 90 k€/year average for conventional solvent or waterborne 15 k€/year UV curing unit Smaller production space for energy curing systems Space needed using UV curing is 10 times less than air drying Typical space for thermal oven : 50-100 m2 Typical space for a UV oven : 5 – 10m2 Increased Productivity and Output Immediate curing (less than 1s) – Time is money! Moderate temperature increase during the curing process Immediate processing of the object after curing No need to cool down before stacking Technology easily adapt to existing production lines Performance Advantages Ease of formulation changes Large raw material selection Hundreds of discreet backbone structures Functionality and backbone ch