Preparation of mono-sized epoxy/MF microcapsulesin the appearance of polyvinyl alcohol as co-emulsifier

Title

Preparation of mono-sized epoxy/MF microcapsulesin the appearance of polyvinyl alcohol as co-emulsifier

 Author

Zhu, G.
Lü, L.
Tang, J.
Dong, B.
Han, N.
Xing, F.

Date

2013-06-16

 Abstract

For epoxy microcapsules embedded in concrete as mechanic-triggered self-healing adhesive, globular shape with uniform size is the basic requirement to ensure the solid shell broken and the liquid core released at a designed stress. In this paper, monodispersed melamine–formaldehyde (MF) resin-walled epoxy E-51 microcapsules were successfully fabricated in an in situ polycondensation process, in which a certain amount of polyvinyl alcohol (PVA) solution was added as coemulsifier to control the microcapsules’ shape and size. Detail investigation shows, with the cooperation of PVA, the microcapsule morphologies and size distribution were ease to be adjusted by the parameters such as emulsifying agents, agitation rate, pH value and acidification time.

 Subject

microcapsule
melamine–formaldehyde resin
epoxy
self-healing
concrete

 To reference this document use:

http://resolver.tudelft.nl/uuid:66947360-d3fb-4954-b710-aa22be96a19b

 Part of collection

Conference proceedings

 Document type

conference paper

 Rights

(c) 2013 Zhu, G.; Lü, L.; Tang, J.; Dong, B.; Han, N.; Xing, F.
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