Review on the Adhesion of Geopolymer Coatings.

Review on the Adhesion of Geopolymer Coatings.
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地质聚合物涂层附着力研究进展

DOI:
10.1021/acsomega.0c06343
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发表时间:
2021-03-02
期刊:
影响因子:
4.1
通讯作者:
Zhao L
Zhao L
中科院分区:
化学3区
文献类型:
--
作者:
Rong X;Wang Z;Xing X;Zhao L

文献摘要

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地聚合物是一种具有优良耐火性能的绿色材料,是普通波特兰水泥(OPC)的潜在替代品。这篇综述文章的重点是高温下的地质聚合物涂层的附着力。它们的高粘附强度是地质聚合物用作涂层材料与基底一起工作的基础。粘结强度与原材料的化学成分、地聚合物的配方、基材类型、基材表面粗糙度等诸多因素有关,Si/Al比对抗压强度和粘结强度有不同的影响。水含量影响聚合过程-粘合强度随水含量增加而降低。仔细调整配合比设计是使地质聚合物涂层具有优异粘合性能的关键。这些配合比设计因素包括Si/Al比、Al/Na比、水含量、前驱体类型、碱阳离子类型、养护条件等。
Geopolymers are considered to be green materials with excellent fire resistance performance and potential substitutes for ordinary Portland cement (OPC). This review article focuses on the adhesion of geopolymer coatings subjected to elevated temperature. Their high adhesion strength is the basis for geopolymers being used as coating materials to work with the substrate. The adhesion strength is related to many factors, such as chemical composition of the raw materials, the formulation of the geopolymer, substrate type, surface roughness of the substrate, etc. The Si/Al ratio has different effects on compressive strength and bonding strength. The water content affects the polymerization process—the adhesion strength decreases with increasing water content. Careful tailoring of the mix ratio design is essential to make the geopolymer coating have excellent adhesive performance. These mix design factors include Si/Al ratio, Al/Na ratio, water content, precursor type, alkali cation type, curing conditions, etc.
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