Abstract The understanding of geopolymer emulsion synthesis is a major issue for several industrial applications such as the formation of hierarchically porous material for filtration, lightweight materials for civil engineering or even the conditioning of radioactive mineral oil. The aim of this paper is to study model emulsions (hexadecane dispersed in Na or K-metakaolin based geopolymer) with the highest volume fraction of C16 incorporated. The influence of the viscosity of the geopolymer paste controlled by the water content was studied and results show that emulsions are unstable for a viscosity ratio ηd/ηc lower than 0.01. Up to 70% in volume of C16 was incorporated within the K-geopolymer and hierarchical porous network was thus obtained. After oil removal by solvent extraction, a monolith with a compressive strength of around 0.5–0.6 MPa was characterized in terms of pore size distribution and specific surface area.

中文翻译：

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地质聚合物乳液的合成

摘要 对地质聚合物乳液合成的理解是几个工业应用的主要问题，例如用于过滤的分层多孔材料的形成、土木工程的轻质材料甚至放射性矿物油的调节。本文的目的是研究具有最高体积分数的 C16 掺入的模型乳液（十六烷分散在基于 Na 或 K-偏高岭土的地质聚合物中）。研究了含水量控制的地质聚合物糊剂粘度的影响，结果表明，当粘度比 ηd/ηc 低于 0.01 时，乳液是不稳定的。多达 70% 体积的 C16 被掺入 K-地质聚合物中，从而获得分层多孔网络。通过溶剂萃取除油后，抗压强度约为 0.5-0 的整料。