by Andy Stecher, Plasmatreat North America and Paul Mills, industry consultant UV-cured liquid and powder coatings provide plastic part manufacturers with a number of attractive benefits, including improved performance; enhanced appearance; reduced environmental, health and safety risks; and various process advantages. At the same time, the rapid film formation and densely … [Read more...] about Improving the Adhesion of UV Liquid and Powder Coatings Using Plasma Treatment
UV Curing
Properties of Silicone Modified UV-Cured Acrylate and Epoxy Coatings Films
by Drs. Bob Ruckle and Tom Seung-Tong Cheungm, Siltech Corporation A wide variety of polymers are used as resins in coatings systems. Often defined by their reactive groups, the myriad of resins offer a wide-range of properties. In the coatings industry, acrylate, epoxy, urethane and polyester coatings are all quite common and have associated typical properties and … [Read more...] about Properties of Silicone Modified UV-Cured Acrylate and Epoxy Coatings Films
Q&A: EB-Curing Technology
by Stephen C. Lapin, PCT Engineered Systems LLC Question: What are the Fundamental Differences Between UV and EB Technology? Answer: Ultraviolet (UV) and electron beam (EB) curing technologies are often grouped together. This is certainly the case in this new publication, UV+EB Technology. The main reason the technologies are considered together is that UV and EB energy can … [Read more...] about Q&A: EB-Curing Technology
Interaction of Photoexcited Photoinitiators with Nitroxyl Radicals
by Dr. Igor V. Khudyakov, Catawba County, North Carolina Introduction Formulations that undergo photopolymerization have, in most cases, photoinitiators (PIs) such as benzophenone and others. These formulations may have nitroxyl (aminoxyl) radicals, which are added for prevention of degradation of the cured coatings. Nitroxyls also are formed during oxidation of hindered … [Read more...] about Interaction of Photoexcited Photoinitiators with Nitroxyl Radicals
Q&A: UV-Curing Technology
by R.W. Stowe, Heraeus Noblelight America LLC Question: Why Don't Technical Data Sheets Specify a UV-Curing System? Answer: Product data sheets for UV inks, coatings, adhesives and paints provide a good amount of detail on the target physical properties of the product, as these are most important to the end use. Why is there so little information on the process of curing … [Read more...] about Q&A: UV-Curing Technology