非金属矿
非金屬礦
비금속광
NON-METALLIC MINES
2014年
1期
19-21
,共3页
薛彩红%孙丙岩%缪韡%朱倩
薛綵紅%孫丙巖%繆韡%硃倩
설채홍%손병암%무위%주천
偏高岭土%煅烧温度%地聚合物%抗压强度
偏高嶺土%煅燒溫度%地聚閤物%抗壓彊度
편고령토%단소온도%지취합물%항압강도
metakaoline%calcination temperature%geopolymer%compressive strength
选取n(SiO2)∶n(Al2O3)、n(Na2O)∶n(Al2O3)、n(H2O)∶n(Al2O3)摩尔比为因素设计正交实验,以高岭土为主要原料制备了偏高岭土基地聚合物。依据高岭土的TG-DSC曲线和地聚合物试样抗压强度确定高岭土最佳煅烧温度为800℃。根据正交实验抗压强度结果分析了各因素的影响规律,确定最佳配比为:n(SiO2)∶n(Al2O3)为4、n(Na2O)∶n(Al2O3)为0.8、n(H2O)∶n(Al2O3)为17。对试样进行XRD表征,结果表明,XRD在20。~40。出现非晶馒头峰,可见已合成一种“半晶态”物质。
選取n(SiO2)∶n(Al2O3)、n(Na2O)∶n(Al2O3)、n(H2O)∶n(Al2O3)摩爾比為因素設計正交實驗,以高嶺土為主要原料製備瞭偏高嶺土基地聚閤物。依據高嶺土的TG-DSC麯線和地聚閤物試樣抗壓彊度確定高嶺土最佳煅燒溫度為800℃。根據正交實驗抗壓彊度結果分析瞭各因素的影響規律,確定最佳配比為:n(SiO2)∶n(Al2O3)為4、n(Na2O)∶n(Al2O3)為0.8、n(H2O)∶n(Al2O3)為17。對試樣進行XRD錶徵,結果錶明,XRD在20。~40。齣現非晶饅頭峰,可見已閤成一種“半晶態”物質。
선취n(SiO2)∶n(Al2O3)、n(Na2O)∶n(Al2O3)、n(H2O)∶n(Al2O3)마이비위인소설계정교실험,이고령토위주요원료제비료편고령토기지취합물。의거고령토적TG-DSC곡선화지취합물시양항압강도학정고령토최가단소온도위800℃。근거정교실험항압강도결과분석료각인소적영향규률,학정최가배비위:n(SiO2)∶n(Al2O3)위4、n(Na2O)∶n(Al2O3)위0.8、n(H2O)∶n(Al2O3)위17。대시양진행XRD표정,결과표명,XRD재20。~40。출현비정만두봉,가견이합성일충“반정태”물질。
The n(SiO2)∶n(Al2O3), n(Na2O)∶n(Al2O3) and n(H2O)∶n(Al2O3) molar ratios were investigated by orthogonal experiment. The metakaolin based geopolymer was synthesized by kaolin. The optimum calcination temperature of kaolin was 800℃based on the TG-DSC curve of kaolin and compressive strength of specimens. Based on compressive strength, the effects of the three molar ratios were analyzed, the optimum molar ratio was n(SiO2)∶n(Al2O3) being 4, n(Na2O)∶n(Al2O3) being 0.8, n(H2O)∶n(Al2O3) being 17. X-ray Diffraction (XRD) was used to characterize the sample, the XRD analysis results indicated that the amorphous hump of metakaolin appeared at 20°~40°, a semi crystalline material was synthesized.