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矿渣基地质聚合物多孔材料的制备与性能
作者:罗新春1 2 汪长安2 
单位:1. 景德镇陶瓷学院材料科学与工程学院 江西 景德镇 333403  2. 清华大学材料学院 新型陶瓷与精细工艺国家重点实验室 北京 100084 
关键词:地质聚合物 多孔材料 高炉矿渣 碱激发 
分类号:TQ174
出版年,卷(期):页码:2016,44(3):0-0
DOI:
摘要:

 以高炉矿渣(BFS)和偏高岭土(MK)为原料、钠水玻璃为激发剂、双氧水为发泡剂,制备了地质聚合物多孔材料。研究了MKMK+BFS的质量比、液固质量比、水玻璃含量、双氧水含量和养护温度对材料性能的影响。结果表明:在总固相为100 g时,当m(MK)/m(MK)+m(BFS)0.35、水玻璃含量为50 g、液固比为0.85、双氧水含量为1.6 mL,先在70 养护12 h,然后在室温下继续养护至相应的龄期,此时材料的发泡效果和机械性能均达到最佳,密度为0.63 g/cm3,抗压强度达到(6.8 ± 0.2) MPa,使用温度高达600 ,是一种较好的轻质高强度多孔材料。

 Gelpolymer porous materials were prepared with blast furnace slag (BFS) and metakaolin (MK) as raw materials, sodium silicate as an activator, and hydrogen peroxide as a pore-forming agent. The effects of the MK/(MK+ BFS), liquid-solid ratio, water glass content, hydrogen peroxide content and curing temperature on the properties of the materials were investigated. The results show that the optimum properties of the prepared materials can be obtained at the total solid of 100 g, MK / (MK+ BFS) of 0.35, sodium silicate content of 50 g, liquid-solid ratio of 0.85, hydrogen peroxide content of 1.6 mL, curing at 70 ℃for 12 h and then curing at room temperature to the corresponding age. The corresponding bulk density and compressive strength are 0.63 g/cm3 and (6.8  0.2) MPa, respectively, and the resistant temperature is 600 ℃. The geopolymers could be used as ideal lightweight, high strength, porous materials.

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