A study of calcium-silicate-hydrate/polymer nanocomposites fabricated using the layer-by-layer method

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Abstract

Calcium-silicate-hydrate (CSH)/polymer nanocomposites were synthesized with the layer-by-layer (LBL) method, and their morphology and mechanical properties were investigated using atomic force microscopy (AFM) imaging and AFM nanoindentation. Different sets of polymers were used to produce CSH/polymer nanocomposites. The effect of different factors including dipping time, calcium to silicate ratios (C/S ratios) and pH on morphology was investigated. CSH/polymer nanocomposites made with different sets of polymers showed variation in morphologies. However, the Young's modulus did not seem to reveal significant differences between the nanocomposites studied here. In nanocomposites containing graphene oxide (GO) nanosheet, an increase in the density of CSH particles was observed on the GO nanosheet compared to areas away from the GO nanosheet, providing evidence for improved nucleation of CSH in the presence of GO nanosheets. An increase in roughness and a reduction in the packing density in nanocomposites containing GO nanosheets was observed.

Original languageEnglish (US)
Article number527
JournalMaterials
Volume11
Issue number4
DOIs
StatePublished - Mar 30 2018

Fingerprint

Silicic Acid
Calcium silicate
Hydrates
Graphite
Nanosheets
Nanocomposites
Polymers
Oxides
Graphene
Atomic force microscopy
Silicates
Nanoindentation
calcium silicate
Calcium
Nucleation
Elastic moduli
Surface roughness
Imaging techniques
Mechanical properties

Keywords

  • AFM image
  • CSH
  • LBL
  • Polymer

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

A study of calcium-silicate-hydrate/polymer nanocomposites fabricated using the layer-by-layer method. / Kamali, Mahsa; Ghahremaninezhad-M, Ali.

In: Materials, Vol. 11, No. 4, 527, 30.03.2018.

Research output: Contribution to journalArticle

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