Modelling of elastic behaviour of polymer nanocomposites

作者：Hadjikov Luyben^*; Koulova Nenova Dantchi; Ivanov Yachko; Petrova Elitca; Yanovski Yury; Karnet Yury

来源：Comptes Rendus de l Academie Bulgare des Sciences, 2008, 61(4): 525-534.

• nanocomposites
• modelling
• rheology
• polymers

We analyse the influence of the nanocomposites structure on the storage module G' and on the loss module G" by using the experimental data given by other authors. We show that these modules depend on the frequency - omega, temperature - theta, amplitude of deformation -gamma(0), loading degree - Phi and time.
The nanocomposites change their behaviour from fluid to pseudo-solid depending on the temperature and loading degree. The dependence on the amplitude of deformation is viscoelastic, i. e. the modulus does not change till some values of amplitudes. After this critical amplitude of deformation, the behaviour of nanocomposites is nonlinear.
In the present paper we propose a basic model of Maxwell describing the change of modulus G' and G" depending on the upper parameters. We also propose the methodology of determination of all parameters for composites with man-sized particles and nanotubes.

• 出版日期2008