Engineering the mechanical and physical properties of organic–inorganic composite microcapsules

Yue Long, Kai Song, David York, Zhibing Zhang, Jon A. Preece

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)
221 Downloads (Pure)

Abstract

Double-shell composite microcapsule with a ripened CaCO3 nanoparticle outer shell and melamine formaldehyde (MF)/copolymer inner shell shows advantages in adjustable permeability and mechanical strength, comparing with single shell microcapsules. Here, we have systematically studied the effects of certain formulation parameters on the properties of the double-shell composite microcapsules, i.e. the MF cross-linking time and the concentration of the aqueous CaCl2 and Na2CO3 used for the ripening process of CaCO3 nanoparticles. The properties of the microcapsules such as average diameter, wall thickness, degree of wall formation formed by the ripened CaCO3 nanoparticles, nominal rupture stress and leakiness were characterized.
Original languageEnglish
Pages (from-to)30-36
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume433
Early online date6 May 2013
DOIs
Publication statusPublished - 20 Sep 2013

Keywords

  • Microcapsule
  • Pickering emulsion
  • Composite
  • Double-shell
  • Controlled delivery

ASJC Scopus subject areas

  • Colloid and Surface Chemistry

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