地质聚合物激发剂及其激发原理

Geopolymer activator and its excitation principle

激发剂在制备地质聚合物的过程中发挥着重要的作用。首先概述了酸、碱和盐3类激发剂及其激发效果,通过介绍氢氧化钠、氢氧化钾和水玻璃等常用碱激发剂的激发效果,具体分析各类碱激发剂的作用差别。阐述了乙酸、盐酸、硫酸和磷酸等典型的酸激发剂的研究进展,以及硫酸盐、硅酸盐和铝酸盐等作为盐类激发剂的活化能力,在此基础上对3类激发剂的优缺点进行了总结分析。同时通过论述酸、碱和盐3类激发剂的激发原理,进一步表明了3类激发剂都具备激发地聚物原料活性的能力,都能够不同程度地加快地聚体系水化反应进程,显著提高地聚体系的强度。最后,对激发剂在地聚物领域的未来发展作出了展望。

The activator plays an important role in the process of preparing geopolymers.The three types of stimulators of acid,alkali and salt and their stimulating effects were summarized firstly.By introducing the stimulating effects of common alkali stimulators such as sodium hydroxide,potassium hydroxide and water glass,the difference in the effects of various alkali stimulators was analyzed in detail.The research progress on typical acid stimulants such as acetic acid,hydrochloric acid,sulfuric acid and phosphoric acid was described,as well as the activation ability of sulfate,silicate and aluminate as salt stimulants.On this basis,the advantages and disadvantages of three kinds of activators were summarized and analyzed.At the same time,by discussing the excitation principles of the three types of activators of acid,base and salt,it was further confirmed that the three types of activators had the ability to stimulate the activity of geopolymer raw materials,and could accelerate the hydration reaction process of geopolymerization system to different degrees,and significantly improved the strength of the geopolymer system.Finally,the future development of stimulants in the field of geopolymers was prospected.