Transcription of Adhesion - Considerations, Testing and Interpretation
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3M Renewable Energy DivisionNREL PV Module Reliability Workshop (Feb 24, 2015) Adhesion - considerations , Testing and Interpretation Presenter Scott R. Meyer: Senior Specialist-Product and Application Development Engineer; 3M headquarters in St. Paul, MN, USA; Chemical Engineer degree from Iowa State University, 1985; 28 years at 3M Company in various divisions; experience with PSA tapes, epoxies, urethanes and fluoroelastomers; ~20 years of Experience with Adhesives; 6 years of tapes and adhesives experience related to the solar industry. 3M 2013. All rights reserved. 7 March Topics: 1. Adhesion and Testing Failure Modes Types of Forces Types of Testing 2. Material & Adhesive Characteristics Perform differently Difficult to compare materials 3.
Acrylic PSA -40’C to 0’C PET (oriented) 70’C to 90’C Epoxies 70 to 250’C Glass (non polymeric) > 500’C ... failure times in constant shear load of 2204 foam tape 0.01 0.1 1 10 100 1000 10000 100000 1000000 0 0.2 0.4 0.6 0.8 1 1.2 1.4 Stress (MPa) SAFT 2204 Constant Force to Rupture Failure 23 C 90 C 0.01 0.1 1 10
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