Department of Resins and Additives , Institute for Color Science and Technology
Abstract
Since coatings industry is pressured from environmental protection agency to reduction volatile organic compounds, UV curing technology is increasingly being considered. UV curing is consist of polymerization process in which monomers and oligomers having several functional groups are converted into a three-dimensional polymer network under photo initiator and UV radiation within seconds. Despite appropriate advantages of this kinds of coatings, were added Combinations as additives them to modify some of their features. One of them is hyperbranched polymers. hyperbranched polymers having their unique features including spherical shape and a lot of terminal group were entered in the formulation of UV curable coatings and gave them special properties. Introduction of these structures in to the UV curing coating can effect both performances futures of coating like viscosity and final futures of films like thermal or mechanical resistance. In this study is described UV curing coating, hyperbranched polymers and their effect on the UV curing coatings.
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