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Alkali-activated materials as coatings deposited on various substrates: A review
International Journal of Adhesion and Adhesives ( IF 3.2 ) Pub Date : 2021-06-12 , DOI: 10.1016/j.ijadhadh.2021.102934
Qingbo Tian , Shuo Wang , Yuwu Sui , Zhijie Lv

Alkali-activated material (AAM) coatings are made from metakaolin, fly ash, granulated blast furnace slag (GBFS), or a mixture of two or more of them as precursor materials. AAM coatings have been deposited on various substrates, such as metals, clay, ordinary Portland cement (OPC)-based mortars or concretes, plywood, glass and ceramic tiles, for fire resistance, anti-corrosive protection, and ionic penetration in aggressive environments. In this paper, the adhesive strength and interfacial boding between coatings and substrates, the coating methods and their characteristics, as well as the application of coatings on various substrates, are reviewed. The appropriate reactions between precursor material and alkaline activator are essential to achieve the strong adhesive strength of coatings on substrates, and to obtain the compatible shrinkage with substrates. The introduction of the additives to precursor materials increases the ability to resist fire, whether by adjusting the expansion of the coating, or by forming intumescent phases. It has been proved that the increased thickness of AAM coatings, largely determined by method of formation, is a significant factor enhancing the fire and corrosion resistance thereof.



中文翻译:

碱活化材料作为沉积在各种基材上的涂层:综述

碱活化材料 (AAM) 涂层由偏高岭土、粉煤灰、粒状高炉矿渣 (GBFS) 或其中两种或多种的混合物作为前驱体材料制成。AAM 涂层已沉积在各种基材上,例如金属、粘土、普通波特兰水泥 (OPC) 基砂浆或混凝土、胶合板、玻璃和瓷砖,用于在侵蚀性环境中防火、防腐蚀和离子渗透。本文综述了涂料与基材之间的粘合强度和界面结合、涂覆方法及其特点,以及涂料在各种基材上的应用。前体材料和碱性活化剂之间的适当反应对于实现基材上涂层的强粘合强度至关重要,并获得与基材相容的收缩率。将添加剂引入前体材料可提高防火能力,无论是通过调节涂层的膨胀,还是通过形成膨胀相。已经证明,主要由形成方法决定的AAM涂层厚度的增加是增强其耐火性和耐腐蚀性的重要因素。

更新日期:2021-06-21
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