聚酰亚胺
材料科学
纤维
溴化物
化学工程
过滤(数学)
表面改性
复合材料
有机化学
化学
图层(电子)
数学
统计
工程类
作者
Fan Xie,Nan Zhang,Longhai Zhuo,Panliang Qin,Shanshan Chen,Yafang Wang,Zhaoqing Lu
标识
DOI:10.1016/j.compositesb.2019.03.048
摘要
A facile route to rapidly assemble presynthesized MOF [NH2-MIL-101(Cr)] crystals onto polyimide (PI) fibers at ambient temperature was proposed in this article. Furthermore, [email protected]@MOF fibers were used to fabricate the paper-based filters for high temperature dust removing by wet-forming process. Prior to this, dopamine was dip-coated onto the surface of inert PI fibers to active the fiber surface. Herein, MOF crystals were chemically induced using β-cyclodextrin (β-CD) and cetyltrimethylammonium bromide (CTAB) as surfactant assembly agents, which quickly self-assembled on the crystal surface and promoted robust chemical surface attachment onto the activated [email protected] fibers. BET results manifested that the overall surface area of [email protected]@MOF fibers exceeded 800 m2/g with assistance of “MOF-cloth”. Filtration performance experimental results indicated that removal efficiency of composites reached as high as 93.05 ± 1.27% at a lower pressure drop of 57.5 Pa and a higher quality factor of 0.0464 Pa-1 for PM0.3 under the high temperature of 260 °C.
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