SPE Short Course
Film Fundamentals: Scratch and Fracture
Significant research on scratch behavior of polymeric coatings and films has been carried out in recent years owing to the ever-increasing emphasis on aesthetics, structural integrity, and protective functionality of polymer surfaces for many engineering applications. Since scratch performance is now recognized as an important engineering property for polymers, the ability to establish quantitative correlation between material parameters and scratch resistance becomes highly desirable. A new test methodology based on materials science and mechanics tools for evaluating scratch resistance of polymers has recently been developed at our laboratory and became a new ASTM/ISO standard (D7027/ISO19252)
Vacuum Coating onto Polymer Films
This short course focuses strongly on coatings made by resistance evaporation but also touches briefly on e-beam evaporation and sputter deposition. It is intended for roll coater machine operators, maintenance personnel, technicians, engineers, scientists, supervisors, and others who would benefit from an introduction to topics related to roll-to-roll vacuum coating onto polymer film substrates (often simply referred to as vacuum web coating). This course emphasizes practical aspects of the topics, and the treatment will be descriptive with little mathematics used.
Whether you make, convert or use webs; you must know web handling. Find out how to:
Web Slitting Technology
Common Slitting Methods
Presented are Razor, Crush and Shear Slitting web fracturing methods juxtaposed with photographs of magnified Lab controlled edge cuts for a variety of web materials. Discussed for each method are friction and force dynamics, knife shapes and web path considerations. A matrix of Pro’s and Con’s will also be provided. Other slitting methods and uses are briefly presented as well.
Shear Slitting – A Complicated Process
This presentation details ten (10) of the seventeen (17) interrelated factors governing successful shear slitting. Included are the important geometric knife relationships; Cut Point, Shear Angle, Overlap and dimensional Run-Out. Additionally we will cover various knife dynamics including; Side Load Forces, Over-Speed, Web Tension, holder mounting and static electricity.
Slitting Adhesive Webs
This course offers a brief discussion of the differences between the adhesive World of Science and the adhesive World of Manufacturing. Presented are numerous techniques used to help reduce the difficulties of slitting adhesives. Included are knife surface finishes, coatings, lubrication, heat and cold.