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

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Leiden Institute of Chemistry
  • Chinese Academy of Sciences
  • Beijing National Laboratory for Molecular Sciences
  • Institute of Particle Science and Engineering
  • School of Process, Environmental and Materials Engineering
  • University of Leeds

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.

Details

Original languageEnglish
Pages (from-to)30-36
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume433
Early online date6 May 2013
Publication statusPublished - 20 Sep 2013

Keywords

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

ASJC Scopus subject areas