A Biodegradable Polycaprolactone Based Ink Developed for 3D Ink Jetting

Access full-text files

Date

2014

Authors

He, Yinfeng
Kilsby, Sam
Tuck, Chris
Wildman, Ricky
Christie, Steven
Yang, Hongyi
Edmondson, Steven

Journal Title

Journal ISSN

Volume Title

Publisher

University of Texas at Austin

Abstract

Biomedical applications are one of the driving forces for Additive Manufacturing, however to extend the range of applications and markets new materials are required. A new type of biodegradable Polycaprolactone (PCL) based ink that is suitable for 3D inkjet printing was successfully developed. UV curable PCL was synthesized and mixed with Poly(ethylene glycol) di-acrylated (PEGDA) to prepare an ink with suitable viscosity for inkjet printing. Their mechanical properties as well as the printing accuracy were measured by nano-indentation and scanning electron microscopy. Post curing was applied to printed samples in order to study how post curing may influence sample properties. It was found that within 30min post-curing period, the sample’s surface which is direct illuminated by UV light increased from 31.22MPa to 70.20MPa while the bottom surface showed less incensement from 34.9MPa to 39.8MPa.

Description

LCSH Subject Headings

Citation