材料科学
聚二甲基硅氧烷
多孔性
化学工程
溶剂
柠檬酸
制作
多孔介质
盐(化学)
石油泄漏
纳米技术
复合材料
有机化学
石油工程
化学
替代医学
病理
工程类
医学
作者
Cunlong Yu,Cunming Yu,Liying Cui,Zhiyang Song,Xinyu Zhao,Ying Ma,Lei Jiang
标识
DOI:10.1002/admi.201600862
摘要
Nowadays, oily wastewater and spilled oil have caused great threats on both ecosystem and human life. To address these severe problems, considerable efforts have been possessed on developing novel oil/water separation materials. The porous oil‐absorbent materials, especially the porous polydimethylsiloxane (PDMS) with excellent properties of easy fabrication and inherent hydrophobicity, have attracted tremendous attentions from worldwide. The conventional methods using salt or sugar as sacrificial template and water as solvent have been widely adopted to fabricate the porous PDMS sponge. Due to the inherent hydrophobicity of PDMS, the solvent of water hardly penetrates into the inside of PDMS, which results in the difficult and incomplete remove of the hard template. In this contribution, the 3D interconnected porous PDMS sponge is facilely prepared by utilizing a modified technique with the citric acid monohydrate as hard template and ethanol as solvent. The proposed approach is capable of removing the hard template efficiently and thoroughly, which demonstrates promising utilizations in practical applications.
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