A study into the effect of POSS nanoparticles on cellulose acetate membranes
A study into the effect of POSS nanoparticles on cellulose acetate membranes
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POSS纳米粒子对醋酸纤维素膜影响的研究
DOI：
10.1016/j.memsci.2012.12.025
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发表时间：
2013
影响因子：
9.5
通讯作者：
S. Clarke
中科院分区：
文献类型：
--
作者：
Clare H. Worthley;Kristina T. Constantopoulos;M. Ginic;E. Markovic;S. Clarke
本文研究了多面体低聚倍半硅氧烷 (POSS) 纳米粒子包含在醋酸纤维素 (CA) 膜中的效果。描述了新型 CA 锚定纳米颗粒添加剂 (CA-POSS) 的合成。膜的制造不添加任何添加剂，或者以不同重量百分比负载的 POSS 或 CA-POSS 作为添加剂。使用扫描电子显微镜研究纳米颗粒分散体。采用动态力学分析来研究纳米复合膜的机械强度。还研究了纳米粒子夹杂物对膜的过滤性能和压实行为的影响。与CA对照相比，纳米复合膜表现出优异的通量和抗压实性，并降低了脱盐率和机械强度。
This paper investigates the effect of polyhedral oligomeric silsesquioxane (POSS) nanoparticle inclusion in cellulose acetate (CA) membranes. The synthesis of a novel CA-anchored nanoparticle additive (CA–POSS) is described. Membranes were fabricated with no additive, or either the POSS or CA–POSS as an additive at different weight percent loadings. Nanoparticle dispersion was investigated using scanning electron microscopy. Dynamic mechanical analysis was used to investigate the mechanical strength of the nanocomposite membranes. The effect of nanoparticle inclusion on the filtration properties and compaction behavior of the membranes was also investigated. Compared to the CA control, nanocomposite membranes exhibited superior flux and compaction resistance, and decreased salt rejection and mechanical strength.