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Geopolymer Foams—Will They Ever Become a Viable Alternative to Popular Insulation Materials?—A Critical Opinion

机译：地缘聚合物泡沫 - 他们曾经成为流行保温材料的可行替代品吗？ - 一个关键意见

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摘要

Over the last several years, there has been a large increase in interest in geopolymer materials, which are usually produced from waste materials, and their applications. The possibilities of application of geopolymers seem to be unlimited, and they are used in almost all fields of technology. Their use as insulation materials appears promising due to their complete nonflammability and excellent strength. However, one limitation is their complex manufacturing process and lack of stability of the obtained geopolymer foams as well as difficulties in achieving such good insulation properties possessed by polyurethane foams, polystyrene, and wool. Hundreds of studies have already been performed on insulating geopolymer foams and various types of foaming agents, and their authors reported that foamed insulating geopolymers had a density starting from 200 kg/m3 and thermal conductivity from 0.04 W/mK. However, the repeatability of the obtained results on an industrial scale is questionable. It is still a challenge to obtain a geopolymer material with comparable properties as conventional insulation materials and to overcome the barriers associated with the successful implementation of geopolymer material as insulation in buildings and other applications on a mass scale. This paper provides a comprehensive review of the methods used for the production of foamed geopolymers and the best parameters obtained, as well as a summary of the most important information reported in the scientific literature. It also presents the results of a critical analysis of the feasibility of implementing this technology for mass deployment. In addition, the problems and limitations that are most often encountered with the implementation of geopolymer technology are discussed.
机译：在过去的几年里，对地质聚合物材料的兴趣大幅增加，这些材料通常由废料生产及其应用。地聚合物应用的可能性似乎是无限的，它们几乎所有技术领域都用于。由于其完全不燃料和优异的强度，它们用作绝缘材料的用途。然而，一个限制是它们复杂的制造过程，并且缺乏所获得的地质聚合物泡沫的稳定性以及实现聚氨酯泡沫，聚苯乙烯和羊毛所具有的良好绝缘性能的困难。已经在绝缘地质聚合物泡沫和各种类型的发泡剂上进行了数百项研究，并且其作者报道，发泡绝缘地质聚合物的密度从200kg / m 3开始，导热率为0.04 w / mk。然而，获得的工业规模的结果的可重复性是值得怀疑的。获得具有与常规绝缘材料相当的性质的地质聚合物材料仍然是一项挑战，并克服与大规模规模的建筑物和其他应用中的绝缘材料的成功实施相关的屏障。本文提供了对用于生产发泡地质聚合物的方法的全面审查以及获得的最佳参数，以及科学文献中最重要的信息的摘要。它还提出了对实施该技术进行群式部署的可行性的关键分析结果。此外，还讨论了在实现地质聚合物技术方面遇到的问题和局限性。

著录项

  • 期刊名称 Materials
  • 作者

    Michał Łach;

  • 作者单位
  • 年(卷),期 2021(14),13
  • 年度 2021
  • 页码 3568
  • 总页数 15
  • 原文格式 PDF
  • 正文语种
  • 中图分类 外科学;
  • 关键词

    机译：地缘聚合物;绝缘材料;碱活性材料;

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