Effect of amine containing compatibilizers on mechanical and rheological properties of a two-component silyl-terminated polyether/epoxy resin system

Berzins, Ritvars; Meri, Remo Merijs; Zicāns, Jānis

doi:10.3176/proc.2018.2.08

Cited by 1 publication

(1 citation statement)

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“…In our previous publications, we have described some issues of the development of SIL/EP model systems (the systems which consisted only from pre-polymers and catalysts) without and with compatibilizers. Results of these investigations showed that N-(n-Butyl)-3-aminopropyltrimethoxysilane-compatibilized two-component SIL/EP systems demonstrated high tensile strength and strain values (over 6 MPa and 400%, respectively) [20,21], revealing the potential of the developed systems for creating novel commercial adhesive and sealant formulations with a broad range of mechanical properties. Unfortunately, for practical reasons and the economic viability of the finished product in the industry, it is usually necessary to tailor the cost-performance ratio of the product in respect to the target market.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Two-Component Silyl-Terminated Polyether/Epoxy Resin Model and Complete Systems and Evaluation of Their Mechanical, Rheological and Adhesive Properties

2022

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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%.

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Section: Introductionmentioning

confidence: 99%