Presentation Title

3D Printable Polyelectrolyte Complexes with Versatile Mechanical, Responsive, and Self-Healing Properties

Faculty Mentor

Julia R. Greer

Start Date

23-11-2019 10:00 AM

End Date

23-11-2019 10:45 AM

Location

231

Session

poster 3

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

Polyelectrolyte complexes (PECs) are a class of supramolecular polymers that are mechanically compliant, and exhibit stimuli-responsive, and self-healing behavior. These materials have found applications in soft robotics, recyclable materials, and reparable systems. In this work, we developed a versatile PEC system for 3D printing using in situ polymerization of acrylic acid in the presence of trivalent metal-cation crosslinkers such as iron (III) and aluminum salts. This system was developed and tuned for projection micro-stereolithography printing, resulting in a compliant material displaying upwards of ~300% strain and ~4MPa stress, as determined using ASTM D638 Standard V tensile testing. 3D printed architectures of this material were shown to exhibit self-healing capabilities and were also selectively soluble, with properties being easily modified by the choice of metal cation crosslinking species. The versatility of this system introduces a large parameter space for facile 3D printing of self-healable and responsive systems with tunable mechanical properties.

This document is currently not available here.

Share

COinS
 
Nov 23rd, 10:00 AM Nov 23rd, 10:45 AM

3D Printable Polyelectrolyte Complexes with Versatile Mechanical, Responsive, and Self-Healing Properties

231

Polyelectrolyte complexes (PECs) are a class of supramolecular polymers that are mechanically compliant, and exhibit stimuli-responsive, and self-healing behavior. These materials have found applications in soft robotics, recyclable materials, and reparable systems. In this work, we developed a versatile PEC system for 3D printing using in situ polymerization of acrylic acid in the presence of trivalent metal-cation crosslinkers such as iron (III) and aluminum salts. This system was developed and tuned for projection micro-stereolithography printing, resulting in a compliant material displaying upwards of ~300% strain and ~4MPa stress, as determined using ASTM D638 Standard V tensile testing. 3D printed architectures of this material were shown to exhibit self-healing capabilities and were also selectively soluble, with properties being easily modified by the choice of metal cation crosslinking species. The versatility of this system introduces a large parameter space for facile 3D printing of self-healable and responsive systems with tunable mechanical properties.