Optimization of microencapsulation process for self-healing polymeric material

Then, S.; Neon, G. S.; Abu Kasim, N.H. (2011) Optimization of microencapsulation process for self-healing polymeric material. Sains Malaysiana, 40 (7). pp. 795-802. ISSN 0126-6039

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      Abstract

      A series of poly(urea-formaldehyde) (PUF) microcapsules filled with dicyclopentadiene (DCPD) was successfully prepared by in situ polymerization. The effect of diverse process parameters and ingredients on the morphology of the microcapsules was observed by SEM, optical microscopy (OM) and digital microscopy. Different techniques for the characterization of the chemical structure and the core content were considered such as FT-IR and (1)H-NMR as well as the characterization of thermal properties by DSC. High yields of free flowing powder of spherical microcapsules were produced. The synthesized microcapsules can be incorporated into another polymeric host material. In the event the host material cracks due to excessive stress or strong impact, the microcapsules would rupture to release the DCPD, which could polymerize to repair the crack.

      Item Type: Article
      Creators:
      1. Then, S.
      2. Neon, G. S.
      3. Abu Kasim, N.H.(Department of Conservative Dentistry, Faculty of Dentistry Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA)
      Journal or Publication Title: Sains Malaysiana
      Additional Information: ISI Document Delivery No.: 788LC Times Cited: 0 Cited Reference Count: 25 Then, Sonja Neon, Gan Seng Abu Kasim, Noor Hayaty University of MalayaPS323/2008C The authors thank the University of Malaya for financial support (PPP grant no. PS323/2008C). Univ kebangsaan malaysia Selangor
      Uncontrolled Keywords: Microcapsules; Micro-Cracking; In Situ Polymerization; Self-Healing; Material; Polyurea Microcapsules; Encapsulation; Composites; Self-Repair; Culture-Conditions; Composite Resin; Dental Pulp Stem Cell; Functionally Graded Design; Multi Layered Post; Functionally Graded Dental Post; Soft Skills; Clinical Pairing; Dental Pulp Stromal Cells; Long-Term Expansion
      Subjects: R Medicine
      R Medicine > R Medicine (General)
      R Medicine > RK Dentistry
      Divisions: Faculty of Dentistry > Dept of Conservative Dentistry
      Depositing User: Associate Prof. Dr. Noor Hayaty Abu Kasim
      Date Deposited: 02 Feb 2012 17:00
      Last Modified: 02 Feb 2012 17:00
      URI: http://eprints.um.edu.my/id/eprint/2531

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