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School of Materials and Mineral Resources Engineering,

Engineering Campus,Universiti Sains Malaysia,

14300 Nibong Tebal,Penang, Malaysia

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Colloidal Polymerization

COLLOIDAL POLYMERIZATION: AN INNOVATION IN EPOXY NANOCOMPOSITES FABRICATION

  

INTRO

Colloidal polymerization is proposed to solve three common fabrication challenges during fabrication of epoxy/graphene nanocomposites, i.e dispersion of graphene, re-agglomeration of graphene and reduction of crosslink density. Colloidal polymerization eventually improved the dispersion and reduce re-agglomeration occurrence, and provide extra crosslink in epoxy nanocomposites.

 

IDEA

By utilizing reactive site of graphene oxide and diamine groups of curing agent, the colloidal mixture of well dispersed graphene in curing agent is obtained, at the same time the graphene were ‘locked’ and reduce re-agglomeration. The covalent bonds between graphene and curing agent serves as extra curing agent prior to curing the epoxy resin.

 

Conventional Mixing vs Colloidal Polymerization

 

SCHEMATIC

 

 

 

Publications

Kudus, M.H.A., Zakaria, M.R., Othman, M.B.H. and Akil, H.M., 2017. Preparation and characterization of colloidized diamine/oxidized-graphene via condensation polymerization of carboxyl groups epoxy/oxidized-graphene nanocomposite. Polymer, 124, pp.186-202.

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2018-11-19

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