Synergy of electrostatic and van der waals interactions in the adhesion of epoxy resin with carbon-fiber and glass surfaces

Kazunari Yoshizawa, Takayuki Semoto, Seiji Hitaoka, Chisa Higuchi, Yoshihito Shiota, Hiromasa Tanaka

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The adhesion between epoxy resin and carbon fiber is investigated by using pair interaction energy decomposition analysis (PIEDA), by which the adhesive interaction energy and adhesive force can be partitioned into the electrostatic, exchangerepulsion, charge-transfer, and van der Waals (dispersion) contributions. The three stabilizing electrostatic, charge-transfer, and dispersion effects are correlated with the destabilizing exchange-repulsion effect. The surface structures of carbon fiber are modeled by the basal face, the armchair-edge structure, and the OH-functionalized armchair-edge structure of graphite. The surface of ?-cristobalite (covered with OH groups), which can be viewed as a good model of a hydrophilic glass surface, is also studied. Adhesive properties of the model interfaces are evaluated on the basis of the binding energy of the resin with the carbon and glass surfaces and the adhesive force acting at the interfaces in terms of energy decomposition. PIEDA calculations demonstrate that only dispersion interactions can substantially work in the hydrophobic surfaces of the basal face and armchair-edge structures. This is a direct consequence of the electrostatic and charge-transfer interactions being cancelled by the exchange-repulsion interactions. On the other hand, both electrostatic and dispersion interactions are significant in the OH-functionalized surfaces of the armchair edge of graphite and ?-cristobalite.

Original languageEnglish
Pages (from-to)500-505
Number of pages6
JournalBulletin of the Chemical Society of Japan
Volume90
Issue number5
DOIs
Publication statusPublished - Jan 1 2017

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Epoxy Resins
Electrostatics
Adhesion
Adhesives
Glass
Charge transfer
Graphite
Decomposition
Silicon Dioxide
Binding energy
Surface structure
Carbon
Resins
carbon fiber

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Synergy of electrostatic and van der waals interactions in the adhesion of epoxy resin with carbon-fiber and glass surfaces. / Yoshizawa, Kazunari; Semoto, Takayuki; Hitaoka, Seiji; Higuchi, Chisa; Shiota, Yoshihito; Tanaka, Hiromasa.

In: Bulletin of the Chemical Society of Japan, Vol. 90, No. 5, 01.01.2017, p. 500-505.

Research output: Contribution to journalArticle

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