An Investigation of the Mechanical Properties of Nanocomposites Based on Polyepoxy Isocyanurates and Monodispersed Carbon Nanoparticles

Abstract

Nanocomposites based on polyepoxy isocyanurate crosslinked systems of different chemical composition were produced in order to investigate the specific effect of technical nanocarbon on each individual polymer network. Monodispersed carbon particles were produced by methane chlorination conducted in a continuous reactor in a non-equilibrium regime with a chlorine deficit. The dependences of the forced elasticity limit, stress relaxation, etc., on the degree of filling were analysed. The possibility of interphase interaction between a specific polyepoxy isocyanurate network and ‘nanofiller’ was investigated. It was shown that a fairly low concentration (1 wt%) of monodispersed carbon particles of 20–25 nm size leads to a 25–30% increase in the elastic modulus and forced elasticity limit; similarly, the relaxation characteristics are also increased. It was established that improvement in a number of such properties is connected with the greater influence of interphase interactions between the polymer and filler on account of the large surface layer area.

Keywords

polyepoxy isocyanurate carbon nanoparticles elastic modulus forced elasticity limit stress relaxation

Get full access to this article

View all access options for this article.

References

Kerber

M.L.

, The Physical and Chemical Processes in the Processing of Polymers. Nauchnye Osnovy i Tekhnologii, St Petersburg, 320 pp. (2013).

Xanthos

, (ed.), Functional Fillers for Plastics. Wiley-VCH, Weinheim, Germany (2010).

Rakov

E.G.

, The pyrolytic synthesis of carbon nanotubes and nanofibres. Ros. Khim. Zh., XLVIII(5): 12–20 (2004).

Kerber

M.L.

, Polymer Composite Materials, ed. by Berlin

A.A.

. Professiya, St Petersburg, 560 pp. (2008).

Shchukin

E.A.

, Colloid Chemistry. Vysshaya Shkola, Moscow, 445 pp. (2004).

Petunova

M.D.

, The single-stage synthesis and mechanical properties of crosslinked polyurethane isocyanurate polymer materials. Plast. Massy, (1): 30–38 (2010).

Afanas'ev

E.S.

, The influence of the conditions of formation of crosslinked polyurethane on the degree of crosslinking and mechanical properties. Vys. Soed., A52(12): 2131–2139 (2010).

Rusanov

A.I.

, The surprising world of nanostructures. Zh. Obshch. Khim., 72(4): 532–549 (2002).

Aleskovskii

V.B.

, and Galitseiskii

K.B.

, Russian Patent 2287543, Method for producing ultradispersed carbon, appl. 23.05.2005, publ. 20.11.2006, Bull. No. 32.

10.

Azinger

, Chemistry and Technology of Paraffin Hydrocarbons. Akademie-Verlag, Berlin (1956).

11.

Aleskovskii

K.B.

, Information as a factor in the self-organisation and organisation of a substance. Zh. Obshch. Khim., 72(4): 611–616 (2002).

12.

Askadskii

A.A.

, and Kondrashchenko

V.I.

, Computational Materials Science of Polymers. Vol. 1. Atomic and Molecular Levels. Nauchnyi Mir, Moscow, 543 pp. (1999).

13.

Askadskii

A.A.

, The Physical Chemistry of Polymeric Materials and Methods for their Investigation. Textbook, ed. by Askadskii

A.A.

ASV, Moscow, 408 pp. (2015).

14.

Askadskii

A.A.

, and Khokhlov

A.R.

, Introduction to the Physical Chemistry of Polymers. Nauchnyi Mir, Moscow, 380 pp. (2009).

15.

Askadskii

A.A.

, Computational Materials Science of Polymers. Cambridge International Science Publishing, Cambridge, 695 pp. (2003).