Emulsion-templated flexible epoxy foams
| Autor: | Helena Decker, Angelika Menner, Alexander Bismarck, Bernhard Retzl, Patrick Steindl, Qixiang Jiang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Emulsion templating 02 engineering and technology Carbon nanotube Energy loss coefficient 010402 general chemistry 01 natural sciences law.invention Adsorption law Phase (matter) Materials Chemistry Flexible epoxy foam Composite material Curing (chemistry) Aqueous solution Hysteresis Organic Chemistry Epoxy 021001 nanoscience & nanotechnology 0104 chemical sciences visual_art Emulsion visual_art.visual_art_medium 0210 nano-technology Thickening agent |
| DOI: | 10.1016/j.polymer.2021.123380 |
| Popis: | Flexible epoxy foams were successfully prepared by curing medium internal phase emulsions (MIPEs) with a continuous organic phase containing epoxy resin and hardener, surfactant and carbon nanotubes and an aqueous internal phase. Curing the MIPEs at ambient temperature resulted in interconnected polyepoxide foams with average pore size of about 10 μm, while curing the MIPEs (with carbon nanotubes as a thickening agent) at 50 °C resulted in epoxy foams with pore sizes of one magnitude higher. The polyepoxide foams were compressible up to a strain of 70% of their original height and did not fracture. The polyepoxide foams were resilient with energy loss coefficients ranging from 40% to 60%, representing their energy adsorption during cyclic loading. |
| Databáze: | OpenAIRE |
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