Dipartimento di Ingegneria, Università di Napoli 'Parthenope', Centro Direzionale, Isola C4, 80143 Napoli, Italy.
INSTM Research Group Napoli Parthenope, National Consortium for Science and Technology of Materials, Via G. Giusti, 9 50121 Firenze, Italy.
Molecules. 2019 Sep 27;24(19):3510. doi: 10.3390/molecules24193510.
The preparation and characterization of innovative organic-inorganic hybrid geopolymers, obtained by valorizing coal fly ash generated from thermoelectric power plants, is reported for the first time. These hybrid materials are prepared by simultaneously reacting fly ash and dimethylsiloxane oligomers at 25 °C in a strongly alkaline environment. Despite their lower density, the obtained materials are characterized by highly improved mechanical properties when compared to the unmodified geopolymer obtained without the use of polysiloxanes, hence confirming the effectiveness of the applied synthetic strategy which specifically aims at obtaining hybrid materials with better mechanical properties in respect to conventional ones. This study is an example of the production of new materials by reusing and valorizing waste raw resources and by-products, thus representing a possible contribution towards the circular economy.
首次报道了通过利用热电厂产生的粉煤灰来制备和表征创新的有机-无机杂化地聚合物。这些杂化材料是通过在 25°C 的强碱环境中同时使粉煤灰和二甲基硅氧烷低聚物反应制得的。与未使用聚硅氧烷制备的未改性地聚合物相比，尽管密度较低，但所获得的材料具有更高的机械性能，这证实了所应用的合成策略的有效性，该策略旨在获得机械性能优于传统材料的杂化材料。本研究是通过再利用和增值废物原料和副产品来生产新材料的一个例子，因此代表了对循环经济的一个可能的贡献。
