Optimization of microencapsulation process for self-healing polymeric material

Sonja Then, and Gan, Seng Neon and Noor Hayaty Abu Kasim, (2011) Optimization of microencapsulation process for self-healing polymeric material. Sains Malaysiana, 40 (7). pp. 795-802. ISSN 0126-6039


Official URL: http://www.ukm.my/jsm/


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 1H-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
Keywords:Microcapsules; micro-cracking; in situ polymerization; self-healing material
Journal:Sains Malaysiana
ID Code:2574
Deposited By: Mr Azam
Deposited On:04 Aug 2011 07:20
Last Modified:14 Dec 2016 06:32

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