Resistance of Epoxypolymer with 2 - 5 wt% Nanosilica in Aggressive Acid Medium

Dmitro L. Starokadomsky, Igor G. Telegeev

O. O. Chuiko Institute of Surface Chemistry, Kyiv, Ukraine.

DOI: 10.4236/ojpchem.2012.23016                

Abstract

The swelling dynamic and epoxy resin structure changes of nanosilica (NS) with different specific surface in concentrated nitric acid were studied. It is established that with increasing of specific surface area of unmodified NS swelling degree decreases and stability of the composite in the acid goes up. Resistance of NS to the HNO3 can be achieved by choosing the optimal concentration and modifications of NS’s surface. According to electron microscopy and X-ray diffraction, the structure of composite can be changed due to appearance of ordered structural zones.

Keywords

Nanosilica (NS); Epoxypolymer (EP); Nitric Acid (c.HNO3); Swelling Degree (q); Life-Time (L); Destruction; TEM-Images

Conflicts of Interest

The authors declare no conflicts of interest.

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