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Strukturní a elektroreologické vlastnosti mesoporézní siliky modifikované triethanol aminem

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dc.title Strukturní a elektroreologické vlastnosti mesoporézní siliky modifikované triethanol aminem cs
dc.title Structural and electrorheological properties of mesoporous silica modified with triethanolamine en
dc.contributor.author Cheng, Qilin
dc.contributor.author Pavlínek, Vladimír
dc.contributor.author He, Ying
dc.contributor.author Lengálová, Anežka
dc.contributor.author Li, Chunzhong
dc.contributor.author Sáha, Petr
dc.relation.ispartof Colloids and Surfaces A: Physicochemical and Engineering Aspects
dc.identifier.issn 0927-7757 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2008
utb.relation.volume 318
utb.relation.issue 1-3
dc.citation.spage 169
dc.citation.epage 174
dc.type article
dc.language.iso en
dc.publisher Elsevier Science B.V. en
dc.identifier.doi 10.1016/j.colsurfa.2007.12.044
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0927775707011004
dc.subject mesoporézní silika cs
dc.subject triethanol amin cs
dc.subject elektroreologická kapalina cs
dc.subject dielektrické vlastnosti cs
dc.subject Mesoporous silica en
dc.subject Triethanolamine en
dc.subject Electrorheological fluid en
dc.subject Dielectric properties en
dc.description.abstract V této práci byla studována mesoporézní silika (MCM-41) modifikovaná triethanol aminem metodami rentgenové difrakce, adsorpce/desorpce N2, infračervené spektroskopie, rastrovací elektronové mikroskopie a termogravimetrie. Připravené suspenze v silikonovém oleji vykazují významný elektroreologický efekt, který je diskutován ve vztahu k dielektrickým vlastnostem materiálů. cs
dc.description.abstract In this work, mesoporous silica (MCM-41) was modified by triethanolamine (TEA) by a wet impregnation method. The structure and morphology of modified MCM-41 particles were characterized by X-ray diffraction, N2 adsorption/desorption, Fourier-transform infrared spectra, scanning electron microscopy, particle size analyzer and thermogravimetric analysis. The results show that the interior channels of MCM-41 are modified by TEA without destroying its mesoporous structure. Further, pure MCM-41and TEA-modified particles were adopted as dispersed phase in silicone oil for electrorheological (ER) investigation. The TEA-MCM-41 (modified with 7 wt.% TEA)-based ER fluid with a volume fraction of 5% exhibits stronger ER activity than pure MCM-41 fluid. The possible mechanism related to dielectric properties is also provided. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1000864
utb.identifier.rivid RIV/70883521:28110/08:63507021!RIV09-GA0-28110___
utb.identifier.obdid 43856415
utb.identifier.scopus 2-s2.0-40649093763
utb.identifier.wok 000255623000018
utb.source j-riv
utb.contributor.internalauthor Cheng, Qilin
utb.contributor.internalauthor Pavlínek, Vladimír
utb.contributor.internalauthor Lengálová, Anežka
utb.contributor.internalauthor Sáha, Petr
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