有机高分子对高岭土-矿渣基地质聚合物力学性能的影响  

The influence of organic polymer to mechanical properties of slag-kaolin based geopolymer

作　　者：刘礼才[1,2] 张耀君[1,2] 徐德龙[1,2] 王亚超[1,2] 

机构地区：[1]西安建筑科技大学材料与矿资学院,西安710055 [2]西安建筑科技大学西部建筑科技国家重点实验室(筹),西安710055

出　　处：《化工新型材料》2012年第10期65-67,共3页New Chemical Materials

基　　金：陕西省工业攻关项目(2010K01-080);西安建筑科技大学西部建筑科技国家重点实验室(筹)开放基金资助项目(10KF05)

摘　　要：以高岭土及矿渣为原料,硅酸钠为激发剂,制备高岭土-矿渣基地质聚合物,分别采用聚羧酸、聚丙烯酸乳液两种有机高分子对其进行强化韧化。力学性能结果表明:掺入0.5wt%的聚羧酸或聚丙烯酸乳液都能对高岭土-矿渣基地质聚合物起到强化增韧作用。XRD和SEM分析结果表明:高岭土-矿渣基地质聚合物主要以结构致密的无定形物质的形式存在,有机增韧剂的掺入对高岭土-矿渣基地质聚合物的矿物相组成没有影响。Slag and kaolin were used as raw material, and sodium silicate was employed as activator. The toughening agents of organic polymers, such as polycarhoxylic acid and polyacrylic emulsion were respectively adopted to reinforcing and toughening slag-kaolin based geopolymer. The alkaline activated slag-kaolin based geopolymer were characterized by the tests of mechanical properties, X-ray diffraction（XRD） and scanning electron microscopy（SEM）. The mechanical experi- mental results showed that the compressive and flexural strengths were improved by doping an amount of 0. 5wt% polycar- boxylic acid or polyacrylic emulsion as comparison with without admixture. The XRD and SEM results indicated that the geopolymer mainly was amorphous gel and the organic toughening agent had no effect on the formation of mineral phases in geopolymer.

关 键 词：高岭土 矿渣 有机高分子 地质聚合物 增韧 

分 类 号：TU52[建筑科学—建筑技术科学]