Membrane Science and Technology

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Preparation of poly ether imide(HQDEA-DMMDA)/fumed silica mixed matrix membrane and its permeation properties

Authors： ZHANG Liqiu, REN Jizhong*,LI Hui, Zhao Dan, Deng Maicun

Units： Dalian Institute of Chemical Physics

KeyWords： poly ether imide(HQDEA-DMMA); hydrophobic fumed silica TS-530; mixed matrix membrane; gas separation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013, 33(6):25-31

Abstract：

Poly ether imide(HQDEA-DMMDA) and hydrophobic fumed silica (TS-530) are used to prepare dense PEI/TS-530 mixed matrix membrane by casting method. The introduction of TS-530 can modify the chain packing of PEI/TS-530 and increase the gas permeabilities of H2, CH4, N2, O2 and CO2. With the increase of TS-530 content, the gas permeabilities and diffusion coefficients increase greatly, which deviates from the prediction of Maxwell model. The gas solubility coefficients depend on the ether oxygen groups and the adsorption of the polymer-particle interface. For PEI/TS-530 mixed matrix membranes with different TS-530 content, the selectivities of CO2/N2, CO2/CH4 and O2/N2 do not change obviously.

Funds：

863基金项目(2012AA03A611)和国家科技支撑计划(2011BAC08B00)支持

AuthorIntro：

张立秋(1987-)，女，山东潍坊，硕士，从事膜分离过程研究.?通讯联系人, renjizhong@dicp.ac.c

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