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Proceedings Paper

Microencapsulation of self-healing agents with melamine-urea-formaldehyde by the Shirasu Porous Glass (SPG) emulsification technique
Author(s): Xing Liu; Jong Keun Lee; Michael R. Kessler
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Paper Abstract

Norbornene-based healing agent candidates, ENB (5-ethylidene-2-norbornene) and ENB with a custom crosslinker, were prepared into a uniform microsphere utilizing a Shirasu Porous Glass (SPG) emulsification technique, and microencapsulated by in-situ polymerization of melamine-urea-formaldehyde (MUF). Resulting microcapsules were observed under optical and scanning electron microscopy for their morphology, outer and inner surface, and shell thickness. Particle size analysis showed more uniform size distribution with a mean diameter of 40 μm, compared to a conventional method using a mechanical impeller. The thermal and mechanical properties of the microcapsules were also examined considering fabrication of self-healing composites.

Paper Details

Date Published: 21 October 2009
PDF: 8 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749345 (21 October 2009); doi: 10.1117/12.843208
Show Author Affiliations
Xing Liu, Kumoh National Institute of Technology (Korea, Republic of)
Tianjin Polytechnic Univ. (China)
Jong Keun Lee, Kumoh National Institute of Technology (Korea, Republic of)
Michael R. Kessler, Iowa State Univ. (United States)


Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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