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Experimental investigation on the influencing factors of preparing porous fly ash-based geopolymer for insulation material

机译：影响绝缘材料制备的多孔粉煤灰基地质聚合物影响因素的实验研究

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摘要

Preparing porous geopolymer for an insulation material was performed by a protein-assisted foaming and non-sintering method. Samples was produced by fly ash, sodium water glass, water and foam as original material, and the protein is used as foaming agent. The influences caused by the dosage (ratio of foam, water glass and water), and curing temperature on the properties were investigated to achieve the optimal performance. Porosity, bulk density, thermal conductivity, mechanical property and thermal evolution behaviors of the produced samples in this study were analyzed accordingly. It was known based on the experimental results that the optimal performance is achieved with a ratio of 35:35:5 for foam, sodium water glass and water under curing temperature of 55 degrees C, showing a porosity of 90.87%, bulk density of 235.5 kg/m(3) , thermal conductivity of 0.0564 W m(-1) K-1 and compressive strength of 0.51 MPa. The obtained research outcomes from this study not only solve the problem of reutilizing waste materials, but also address a new strategy for obtaining non-flammability insulating materials. (C) 2018 Elsevier B.V. All rights reserved.
机译：通过蛋白质辅助的发泡和非烧结法进行用于绝缘材料的多孔地质聚合物的制备。样品由粉煤灰，钠水玻璃，水和泡沫作为原始材料生产，蛋白质用作起泡剂。研究了用量（泡沫，水玻璃和水的比例）和固化温度对性能的影响，以获得最佳性能。相应地分析了所研究样品的孔隙率，堆积密度，导热率，机械性能和热演化行为。根据实验结果可知，在55摄氏度的固化温度下，泡沫，钠水玻璃和水的比例为35：35：5，可获得最佳性能，孔隙率为90.87％，堆积密度为235.5 kg / m（3），导热率0.0564 W m（-1）K-1和抗压强度0.51 MPa。这项研究获得的研究成果不仅解决了废物再利用的问题，而且提出了一种获得不燃绝缘材料的新策略。 （C）2018 Elsevier B.V.保留所有权利。

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