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Title:Microcellular open-porous polystyrene-based composites from emulsions
Authors:ID Huš, Sebastjan (Author)
ID Kolar, Mitja (Author)
ID Krajnc, Peter (Author)
ID Inštitut za kovinske materiale in tehnologije (Authorship owner)
Files:.pdf Materiali_in_Tehnologije_2014_Hus,_Kolar,_Krajnc_Microcellular_Open-Porous_Polystyrene-Based_Composites_From_Emulsions.pdf (1,06 MB)
MD5: CBF9DDD037302C19D5A3C61F1A8EF8BA
 
URL http://mit.imt.si/Revija/izvodi/mit143/hus.pdf
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Series of cross-linked polystyrene samples were prepared using an emulsion templating approach, where monomers were contained in the continuous phase of the emulsion, while the droplet aqueous phase induced primary pores, connected with a number of secondary pores. Emulsions with a high fraction of the droplet phase (HIPEs) were used and stabilised with a combination of a surfactant (sorbitan monooleate) and various types of particles (charcoal powder, copper powder and carbon nanopowder). The morphology of the resulting porous polymer depends on the type and amount of the particles added to the emulsion; however, in all the cases open-cellular morphology was formed. The size of the primary pores (cavities) ranged from 5 µm to 25 µm, while the size of the secondary interconnecting pores was from 1 µm to 5 µm. The materials were investigated using scanning electron microscopy and nitrogen adsorption/desorption.
Keywords:polyHIPE, porous polymers, nanocomposites, porosity, polystyrene
Publication status:Published
Publication version:Version of Record
Year of publishing:2014
Number of pages:str. 403-407
Numbering:Letn. 48, št. 3
PID:20.500.12556/DKUM-65196 New window
ISSN:1580-2949
UDC:544.022.537:678.746.2
ISSN on article:1580-2949
COBISS.SI-ID:17826326 New window
NUK URN:URN:SI:UM:DK:DUPTS142
Publication date in DKUM:16.03.2017
Views:1788
Downloads:140
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Categories:Misc.
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Secondary language

Language:Slovenian
Title:Mikrocelični odprtoporozni polistirenski kompoziti iz emulzij
Abstract:Z uporabo emulzij z visokim deležem notranje faze smo pripravili serijo zamreženih polistirenskih vzorcev. Monomeri so bili vsebovani v kontinuirni fazi emulzije, kapljice notranje vodne faze pa so povzročile poroznost materiala z vrsto primarnih por, povezanih s povezovalnimi porami. Emulzije z visokim deležem notranje faze (HIPE) smo stabilizirali z uporabo surfaktanta v kombinaciji z različnimi delci (oglje v prahu, baker v prahu in ogljikov nanoprah). Na morfologijo pripravljenih odprtoporoznih materialov sta vplivala tako vrsta kot tudi količina dodanih delcev. Velikost primarnih por je bila v območju med 5 µm in 25 µm, medtem ko je bila velikost sekundarnih povezovalnih por v območju med 1 µm in 5 µm. Materiale smo karakterizirali z uporabo vrstičnega elektronskega mikroskopa in adsorpcijo/desorpcijo dušika.
Keywords:porozni polimeri, poliHIPE, nanokompoziti, poroznost, polistiren, emulzije


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