• Dimic, Mirjana
• Tomic, Milos
• Brzic, Sasa
• Uscumlic, Gordana
• Fidanovski, Bojana
• Rodic, Vesna

Abstract

<jats:p>The influence of tris(2,3-epoxypropyl) isocyanurate as bonding agent on thephysico-chemical, viscoelastic and uniaxial tensile mechanical properties ofcarboxyl-terminated (butadiene-co-acrylonitrile) cured with the polyglycidylether of glycerol and epichlorhydrin was investigated. Cross-link densityvalues were estimated by swelling measurement. Temperature and frequencydependencies of rheological behaviour parameters (storage modulus, lossmodulus, loss factor and glass-rubber transition temperature) were alsoanalyzed. Based on the frequency dependencies of storage modulus, put in therange of temperature from -50 ?C to 20 ?C by the experiment, master curves(logG' vs log ?) were generated, reaching broader frequency interval incomparison to that used in the measurements. By choosing the glass-rubbertransition temperature to be the reference one, Williams-Landel-Ferryequation constants were determined. Further, material constants, fractionalfree volume at the glass-rubber transition temperature and thermalcoefficient of free volume expansion were calculated. Although small quantityof tris(2,3-epoxypropyl) affects the network density, the dynamic mechanicalanalysis showed that the bonding agent content did not affect theglass-rubber transition temperature of the tested materials.</jats:p>

Topics

• density
• experiment
• glass
• glass
• composite
• rubber