Rheology of Pressure Sensitive Adhesives Course
This course offers an understanding of what properties make a material to be an effective pressure sensitive adhesive. This course will explain the dynamic mechanical properties of adhesives and their interpretation. Balancing tack, holding power and cohesive strength are critical for pressure sensitive adhesives and their functions. This course will help explain how these are derived from dynamic mechanical measurements.
Learning Objectives
- Linear viscoelastic properties and their measurement
- Creep, stress relaxation, and dynamic mechanical properties
- Time-temperature superposition Requirements of pressure sensitive adhesives
- The Dahlquist criterion
- Connection between dynamic properties and peel adhesion
- Molecular control of rheological properties
- Glass transition in temperature and time scale space
Dave Yarusso, Consultant
David Yarusso earned his Ph.D. in Chemical Engineering at the University of Wisconsin in 1983 with an emphasis on polymer materials science. He worked 34 years at the 3M Company in various functions relating to the development of pressure sensitive adhesive technology and products, retiring in 2017 as a Corporate Scientist and Carlton Society member. He is an industry recognized expert in the viscoelastic characterization of pressure sensitive adhesives and the relations between those properties and practical adhesive performance. Dave has taught numerous short courses and seminars on polymer science, rheological characterization, and adhesives and currently works as an independent consultant under Yarusso Consultants, LLC.