3D printing and additive manufacturing enables the use of a wide range of materials and materials properties: primarily polymers and metals. Polymers offer a more versatile approach in that the chemistry can be controlled to result in sufficient or interesting stimuli-responsive properties beyond that of an extruded or melt fused systems. A method of choice is with either photochemical crosslinking or chemical crosslinking. In this talk, we focus on the use of stereolithographic apparatus (SLA) and viscous solution printing (VSP) to enable new materials and properties from photochemically and chemically crosslinked formulations that result in extensive new properties. The improved properties can result in enhanced thermo-mechanic strengthening, controlled swelling, or super elastomeric properties. We will focus on the following systems: 1) SLA photocrosslinked graphene, silica nanoparticles, and nanocellulose polymer materials resulting in toughened thermo-mechanical properties and controlled wetting, 2) the use of VSP .chemically crosslinked silicone compositions that results in superelastomeric properties, and 3) the use of chemically reactive crosslinking chemistry of epoxy compositions that result in toughened thermosets via VSP.

Nanostructuring and cross-linking in 3D printed polymer systems

2019 Spring National Meeting

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