Investigating Adhesives for Attaching Mirrors to Aluminium Plates - Individual Project
This individual project by Melanie Saayman focuses on investigating various adhesives for attaching mirrors to aluminium plates. The project includes the testing of different adhesives, preparation of glass and aluminium samples, and conducting lap shear tests under compression. The goal is to determine the most suitable adhesive for this specific application by considering variables such as bond area and thickness. Various adhesive options are explored, including Loctite 326, Summers Optical Milbond, and 3M 2216 B/A Gray. The project also involves Instron testing and references from Petrie's Handbook of Adhesives and Sealants.
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Presentation Transcript
Investigating Adhesives for Attaching Mirrors to Aluminium Plates OPTI 523L Individual Project by Melanie Saayman
Adhesives Available: Loctite 326 Summers Optical Milbond 3M 2216 B/A gray Ordered: NuSil LS-6140 Dow Corning 732, Q3-6093 & 93-500 (samples requested) TBD: GE Silicones RTV566 PR-1440 Class A (PRC-DeSoto)
Glass Samples 70 x 70 x 5.5 mm Status: Available TBD: Prepare surfaces for adhesion by grounding
Aluminium Samples 50 x 50 x 12.5 mm Status: Available TBD: Surface preparation: Sand surfaces using sandpaper
Instron* Status: Expected to be available in +- 2 weeks Expect to start taking measurements during the week of April 19th *Wilson Instruments 2000 Series Rockwell Hardness Tester
Accessories 2.5 inch Flat Anvil: Keeps the sample 90 degrees perpendicular to the indenter.
Lap Shear Tests - Background Standard lap shear specimen design [1]: Modified lap shear specimen designs to maintain axial loading [1]:
Variables Choice of Adhesive Bond area Bond thickness
References [1] Petrie E. M., Handbook of Adhesives and Sealants pp. 149 -151
