Effects of PMMA on porous structure of pollucite
Effects of PMMA on porous structure of pollucite
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DOI：
10.1016/j.jeurceramsoc.2005.07.011
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发表时间：
2006
影响因子：
5.7
通讯作者：
I. Yanase;Y. Ishikawa;Shuzo Matsuura;Hidehiko Kobayashi
中科院分区：
文献类型：
--
作者：
I. Yanase;Y. Ishikawa;Shuzo Matsuura;Hidehiko Kobayashi
研究了PMMA作为造孔剂和1073K煅烧的缺Cs铯榴石Cs9Al0.9Si2.1O6粉末对Cs0.9Al0.9Si2.1O6多孔体微观结构的影响。通过烧结该煅烧粉末和在该煅烧粉末中添加35质量％的PMMA的生坯来制备Cs0.9Al0.9Si2.1O6多孔体。当将生坯在空气中于873K加热20h时，在多孔体中观察到<1μm的孔隙，这表明预先溶解在丙酮中的PMMA通过球磨均匀地分布在煅烧粉末中。所得多孔结构的孔径随着聚集颗粒尺寸的增加而增加，孔径分布与Al2O3球的尺寸以及混合煅烧粉末和PMMA的球磨时间显着相关。
The effects of PMMA as a pore-forming reagent and the powder for Cs-deficient pollucite, Cs9Al0.9Si2.1O6, calcined at 1073K, on the microstructure of the porous body of Cs0.9Al0.9Si2.1O6were investigated. The Cs0.9Al0.9Si2.1O6porous bodies were fabricated by sintering the green compacts of the calcined powder and PMMA adding 35mass% to the calcined powder. When the green compact was heated at 873K in air for 20h, pores <1μm were observed in the porous body, suggesting that the PMMA previously dissolved in acetone was uniformly distributed in the calcined powder by the ball milling. The pore size of the obtained porous structure increased with increasing the size of the aggregated particles and the pore size distribution was significantly related to the size of Al2O3balls and the time for the ball milling for mixing the calcined powders and PMMA.