硅藻土基复合板材的制备及性能研究
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摘要
以硅藻土为基材,玻璃粉作为胶结材料,抛光石粉、粉煤灰为掺和材料,采用焙烧工艺制备硅藻土基板材。研究掺合料、焙烧温度对复合硅藻土基板材性能的影响,确定制备硅藻土板材的最优原料比例和最佳工艺条件。试验研究结果表明在同一焙烧温度下,随着硅藻土比例的增加,硅藻基板材抗折强度减小,调湿性能增强,甲醛吸附量下降;在同一配比条件下,随着烧结温度的增大,复合硅藻基板材抗折强度先增大后减小,在825℃时强度达到最大值,调湿性能与甲醛吸附性能逐渐降低。
Using diatomite as the base material,the glass powder as the cementing material,the polished stone powder and fly ash as the admixtures,and using the firing process to prepare the diatomite-based plate. Study on the effect of roasting admixture,temperature on the properties of composite diatomitebased plate,to determine the optimal ratio of raw material and optimum conditions when preparing the diatomite-based plate. Experimental results show that under the same temperature,with the increase of diatomite proportion, the flexural strength of diatomite-based plate decrease, while the humidity controlling performance improves,and formaldehyde adsorption capacity descends; Under the condition of the same proportion,with the increase of sintering temperature,the flexural strength of diatomite-based plate increase initially to the maximum at which the temperature is 825 ℃ then decrease. At the same time,humidity controlling performance and formaldehyde adsorption capacity gradually decrease.
Using diatomite as the base material,the glass powder as the cementing material,the polished stone powder and fly ash as the admixtures,and using the firing process to prepare the diatomite-based plate. Study on the effect of roasting admixture,temperature on the properties of composite diatomitebased plate,to determine the optimal ratio of raw material and optimum conditions when preparing the diatomite-based plate. Experimental results show that under the same temperature,with the increase of diatomite proportion, the flexural strength of diatomite-based plate decrease, while the humidity controlling performance improves,and formaldehyde adsorption capacity descends; Under the condition of the same proportion,with the increase of sintering temperature,the flexural strength of diatomite-based plate increase initially to the maximum at which the temperature is 825 ℃ then decrease. At the same time,humidity controlling performance and formaldehyde adsorption capacity gradually decrease.
引文
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[15]高风辉,苏立明,林健.烧结温度对硅藻土基陶瓷砖吸湿和放湿性能的影响[J].长春工业大学学报(自然科学版),2013 34(1):90-93.
[2]梁兴荣,张英英,向兴,等.硅藻土制备硅酸钙板的研究[J].中国非金属矿工业刊,2014,112(5):15-17.
[3]佟钰,张君男,王琳,等.硅藻土的水热固化及其湿度调节性能研究[J].新型建筑材料,2015:14-16.
[4]孔伟,杜玉成,卜仓友,等.硅藻土基调湿材料的制备与性能研究[J].非金属矿,2011,34(1):57-59.
[5]戴民,王羽,魏征,等.硅藻土基调湿板材的水热合成试验研究[J].硅酸盐通报,2016,35(1):231-236.
[6]贾嵩阳.硅藻土素面砖的制备及性能研究[D].沈阳:沈阳理工大学,2012.
[7]姜洪义,王一萍,万维新.沸石/硅藻土孔结构及调湿性能的研究[J].硅酸盐通报,2006,25(6):30-33.
[8] Nurhayat D. Use of diatomite as partial replacement for Portland cement in cement mortars[J]. Construction and Building Materials,2009,34(23):284-288.
[9] Bulent Y. The use of raw and calcined diatomite in cement production[J]. Cement&Concrete Composites,2008,53(30):202-211.
[10] Yuan P,Wu D,Lin Z. Study on application of diatomite as reinforce-filler of rubber[J]. Applied Surface Science,2004,227:30-34.
[11] Osman A,Remzi G,Cem O. Purification of diatomite powder by acid leaching for use in fabrication of porous ceramics[J]. International Journal of Mineral Processing,2009,79(1):6-10.
[12]马巍,胡浩,刘文亮,等.硅藻土多彩多孔陶粒的制备方法及应用情况[J].南方农机,2014,5(10):45-46.
[13] Yu Z H,Zhang Y F,Zhai S R. Amino-modified mesoporous sor-bents for efficient Cd(II)adsorption prepared using non-chemical di-atomite as precursor[J]. Sol-Gel Sci Technol,2016,78(11):110-119.
[14]张安岭,任子杰硅藻土/碳酸钙复合吸附材料制备研究[J].非金属矿,2017,40(3):57-60.
[15]高风辉,苏立明,林健.烧结温度对硅藻土基陶瓷砖吸湿和放湿性能的影响[J].长春工业大学学报(自然科学版),2013 34(1):90-93.