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Title:VPLIV DODANE VODE NA FORMIRANJE POLIMERNIH ASIMETRIČNIH POROZNIH MEMBRAN PO POSTOPKU MOKRE FAZNE INVERZIJE V TERNARNEM SISTEMU CELULOZNI ACETAT (CA) / TETRAHIDRO FURAN (THF): VODA
Authors:Klep, Boštjan (Author)
Stropnik, Črtomir (Mentor) More about this mentor... New window
Krajnc, Peter (Co-mentor)
Files:.pdf VS_Klep_Bostjan_2010.pdf (1,04 MB)
 
Language:Slovenian
Work type:Undergraduate thesis (m5)
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Diplomsko delo temelji na raziskavi polimernih asimetričnih poroznih membran, narejenih s postopkom mokre fazne inverzije. Membrane so formirane iz celuloznega acetata (CA), tetrahidro furana (THF) in destilirane vode. Prioriteta med nastankom membran je bilo merjenje motnosti, ki se je spreminjalo glede na dodano količino masnega deleža destilirane vode. Masni delež destilirane vode je prav tako vplival na merjenje naše druge karakteristike — debeline. S povečanjem masnega deleža destilirane vode se debelina membran sorazmerno povečuje. Zakasnitvemi čas se je pojavljal kot zakasnelo razmešanje med CA in THF pri nižjih koncentracijah raztopin polimera in pri naraščujočih debelinah nanosa.
Keywords:asimetrične porozne membrane, mokra fazna inverzija, celulozni acetat, tetrahidro furan, motnost, povprečna debelina, zakasnitveni čas.
Year of publishing:2010
Publisher:[B. Klep]
Source:Maribor
UDC:661.72(043.2)
COBISS_ID:14090262 Link is opened in a new window
NUK URN:URN:SI:UM:DK:2J9AYBEG
Views:2236
Downloads:106
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:Influence of added water to polymeric asymmetric porous membranes formation by wet phase inversionin the ternary system cellulose acetata CA/ tetrahydro furan THF: water.
Abstract:Priority throughout formation of membranes was turbidity measuring that was changing according to added mass amount of distilled water. Mass amount also influenced measuring of other characteristic – thickness. The thickness of membranes proportionally increases with increase of distilled water mass share. Delay time appears as delayed demixing between CA and THF at lower concentrations of polymer solutions and with incremental thicknesses of coating.
Keywords:asymmetric porous membranes, wet phase inversion, cellulose acetate, tetrahydro furan, turbidity, average thickness, delay time.


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