• Aristeidis Anastasios Papadimitriou
  • Jérémy Henry Maurice Liely
4. semester, Materialeteknologi, Kandidat (Kandidatuddannelse)
Poly(2-hydroxyethyl methacrylate) hydrogels were manufactured via photo-initiated polymerization at various water
to monomer concentrations for investigation upon swelling in de-ionized water and salt solution (NaCl). To analyze
characteristic features of their behavior, both as-prepared and fully swollen hydrogels were subjected to uniaxial
tensile and relaxation tests. Cyclic test with a strain-controlled program is also performed where cyclic loading is
interrupted by swelling for analysis of the self-recovery phenomenon of hydrogels. Experimental data are treated as
means of appropriate constitutive models to ascertain the effects of composition and degree of swelling (Q) on the
visco-elastic response. The constitutive model treats a hydrogel as a two-phase continuum composed of a solid and
fluid constituent subjected to swelling under arbitrary deformation with finite strains. Structure-property relations were
investigated which allow mechanical properties of the gel to be predicted as function of its composition.
Antal sider28
ID: 234519982