在粉煤灰基地聚物中添加有机物是复合材料发展的趋势,但有机物的添加会对地聚物的性能产生影响。把有机碱和亲水性有机聚合物与粉煤灰复配制备地聚物复合材料,考察有机物添加种类、添加量和不同龄期下制备的地聚物的抗压性能,对地聚物断裂面的微观形貌进行分析。结果表明:少量碱性有机物可以促进地聚物强度的提高,羟乙基纤维素、聚氨基甲酸酯未能有效地提升地聚物的抗压强度,但都改善了地聚物的抗压破坏特征。通过总结有机物的添加对地聚物抗压性能的影响,为粉煤灰基有机无机复合地聚物材料的应用研究提供参考。
It is a trend of composite material development to add organic matter to fly ash base polymer,but the addition of organic matter will affect the property of geopolymer.The geopolymer composites were prepared by organic base and hydrophilic organic polymer and fly ash,and the compressive properties of the geopolymer prepared at different ages were investigated by the types and amounts of organic compounds.The microstructure of the fracture surface of geopolymer was analyzed.The results shown that a small amount of basic organic matter can improve the strength of the geopolyme,while hydroxyethyl cellulose and polycarbamate can't effectively improve the compressive strength of the geopolyme,but both can improve the compressive failure characteristics of geopolyme.By summarizing the effect of the addition of organic matter on the compressive property of the geopolymer,a reference for the application of organic-inorganic composite geopolymer materials based on fly ash was provided.
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基金资助
安徽理工大学环境友好材料与职业健康研究院(芜湖)研发专项(ALW2020YF02);2018年安徽省大学生创新创业计划项目(201810361279);2019年国家级大学生创新训练项目(201910361067);2020年国家级大学生创新训练项目(202010361081)
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