Info
Provider: GA ČR
Solution time: 2024-2026
Project No: 24-11171S
Acid-based geopolymers (ABG) is emerging group of materials produced by mixing of an aluminosilicate precursor and phosphoric acid. Their advantage, compared to conventional binders, is superior thermal and chemical stability and high strength, which determine the potential ABG application to thermally and chemically resilient coatings, thermally-insulating foams or 3D-manufacturing. So far, the ABG has been prepared mostly by acid activation of metakaolin (thermally-treated kaolin); this is relatively exclusive and expensive material. The
Project aims to prepare ABG from alternative clay precursors – widely abundant kaolinitic-illitic clays of various compositions and impurities. These alternative precursors will be used after thermal activation, but the possibility to prepare ABG from thermally untreated clay be examined as well. The prepared ABG will be characterized among other techniques by solid state MAS NMR spectroscopy, which will provide unique information about their structure and
synthesis mechanism. The structural data will be correlated with mechanical properties.
Principal investigator
