Polyether/Epoxy Resin Model and Complete Systems and Evaluation of Their Mechanical, Rheological and Adhesive Properties
Polymers 2022
Ritvars Bērziņš, Remo Merijs-Meri, Jānis Zicāns

The current research is devoted to the investigation of the influence of a secondary amine compatibilizer and customized additive package on the tensile, rheological and adhesive properties of a Silyl-terminated polyether (SIL)/Epoxy resin (EP) model and completed two-component systems. A SIL/EP model and completed two-component systems were developed over a broad range of the both pre-polymer ratios (90/10–30/70 wt.-to-wt%). Additive packages of the components A and B were designed to prevent premature polycondensation of the respective pre-polymers (including suitable catalysts for each of the pre-polymers, as well as vinyltrimetoxysilane as a drying agent for moisture control), to ensure easy processing and stable performance of the system. Results of the investigation testify that the values of the tensile strength and Shore-A hardness of the compatibilized systems are higher in comparison to unmodified ones. In the presence of the additive package, a further improvement of tensile strength and tensile strain values is observed for SIL-rich compositions (SIL content above 70 wt%), whereas at lower SIL concentrations, the reinforcing effect is considerably reduced. In respects to adhesion properties, the highest values to a broad range of substrates with different surface polarities are observed at the SIL/EP range from 80/20 to 50/50 wt.-to-wt%.


Atslēgas vārdi
compatibilizer | epoxy resin | mechanical | rheological and adhesive properties | silyl-terminated polyether | two-component system
DOI
10.3390/polym14122421
Hipersaite
https://www.mdpi.com/2073-4360/14/12/2421

Bērziņš, R., Merijs-Meri, R., Zicāns, J. Polyether/Epoxy Resin Model and Complete Systems and Evaluation of Their Mechanical, Rheological and Adhesive Properties. Polymers, 2022, Vol. 14, No. 12, Article number 2421. ISSN 2073-4360. Pieejams: doi:10.3390/polym14122421

Publikācijas valoda
English (en)
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