Macromolecular Research

, 19:1056 | Cite as

Microencapsulation of self-healing agents with melamine-urea-formaldehyde by the Shirasu porous glass (SPG) emulsification technique

Article

Abstract

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

Keywords

self-healing microencapsulation melamine-urea-formaldehyde SPG emulsification 

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Copyright information

© The Polymer Society of Korea and Springer Netherlands 2011

Authors and Affiliations

  1. 1.Department of Polymer Science and EngineeringKumoh National Institute of TechnologyGyeongbukKorea
  2. 2.College of TextileTianjin Polytechnic UniversityTianjinP.R. China
  3. 3.Department of Materials Science and EngineeringIowa State UniversityAmesUSA

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