(56f) Glass-Forming Polymer Networks for Shape-Memory Contact Printing
AIChE Annual Meeting
2018
2018 AIChE Annual Meeting
Topical Conference: Next-Gen Manufacturing
3D Printing II
Monday, October 29, 2018 - 9:40am to 10:00am
Different glass forming polymers that can withstand high elongation and store large amounts of elastic strain energy in compression are under investigation. Two systems will be described: (i) small molecule thiol-ene networks that are softened by addition of dithiol reagents, and (ii) glass forming t-butyl acrylates that are lightly crosslinked. Their shape-memory behavior in tension and in compression will be reported. Furthermore, a custom-built materials testing / contact printing apparatus will be used to set compressive strain between two soft surfaces while measuring stress and contact area. Contact mechanics experiments are modeled and interpreted using finite element analysis to offer deeper insight to the nature of contact and detachment.