Use of Functionalized Nanosilica to Improve Thermo-Mechanical Properties of Epoxy Adhesive Joint Bonding Aluminium Substrates | Zendy

Caroline Sperandio | Zendy; Abdelghani Laachachi | Zendy; David Ruch | Zendy; Christophe Poilâne | Zendy; P. Bourson | Zendy; JeanPaul Salvestrini | Zendy; S. Ahzi | Zendy

Open Access

Use of Functionalized Nanosilica to Improve Thermo-Mechanical Properties of Epoxy Adhesive Joint Bonding Aluminium Substrates

Author(s) -

Caroline Sperandio,

Abdelghani Laachachi,

David Ruch,

Christophe Poilâne,

P. Bourson,

JeanPaul Salvestrini,

S. Ahzi

Publication year - 2010

Publication title -

journal of nanoscience and nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 1533-4899

pISSN - 1533-4880

DOI - 10.1166/jnn.2010.1458

Subject(s) - materials science , adhesive , epoxy , aluminium , diffusion bonding , polymer science , composite material , layer (electronics)

The present work is concerned with the improvement of thermal properties and mechanical strength of adhesive joints consisting of an epoxy adhesive layer bonding aluminium substrates by grafted nanosilica. Epoxy resin/silica nanocomposites were prepared by using functionalized silica. Silica was functionalized by amine group (SiO2-NH2). It was identified by Raman and Fourier Transform Infrared (FTIR). Effects of silica on viscoelastic properties for epoxy resin and its assemblies with aluminium substrates were studied by Dynamical Mechanical Analysis (DMA). Particles distribution was characterized by Scanning Electron Microscope (SEM). Our experimental results showed that functionalized silica presents a better distribution in the matrix than the pure silica. Our results also showed that grafting of functionalized silica improves the glass transition temperature (Tg) and the ultimate strength of aluminium/epoxy/aluminium assembly.

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