Speciální povrchové úpravy polymerů
Title Alternative:SPECIAL FINISHING OF POLYMERS
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Date
2006
Authors
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Journal ISSN
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Publisher
Technická Univerzita v Liberci
Abstract
Diplomová práca sa zaoberá štúdiom špeciálnych povrchových úprav polymérov. Je rozdelená na teoretickú a experimentálnu časť. V teoretickej časti sú popísané postupy silylácie a metódy sól-gél, charakteristika povrchových vlastností a charakteristika mikroorganizmov. Experimentálna časť, je zameraná na vlastný experiment. Vzorky polyesteru, polypropylénu, polyvinylalkoholu, polyakrylonitrilu, bavlny, vlny, viskózy, lyocelu a pre porovnanie účinkov aj sklo, boli podrobené silylačnej reakcii. Štúdium zmáčavosti jednotlivých povrchov polymérov modelovými kvapalinami sa previedlo za pomoci obrazovej analýzy. Medzi kvapaliny použité pri testovaní patrili: destilovaná voda, dijódmetán a etylénglykol. Získané uhly zmáčania slúžili k vyhodnoteniu hydrofobných vlastností týchto povrchov. Na vzorky ľanu, viskózy, bavlny a polyesteru boli metódou sól-gél vrstvy SiO2 - Ag. Na týchto vzorkách sa hodnotil inhibičný efekt voči baktérii Escherichia Coli. V závere sú vyhodnotené získané efekty z hľadiska aplikácie v textilnom priemysle.
Diploma thesis deals with research of special surface modifications of polymers. Thesis is split in theoretical and experimental part. Theoretical part cover techniques of sylilation and sol-gel method, characteristic of surface attributes and characteristic of microorganisms. Experimental part cover the self experiment. Samples of polyester, polypropylene, polyvinyl alcohol, polyacrylonitrile, cotton, wool, viscose, lyocel and for comparing of effects also glass, was silylated. Research of wettability of particular polymeric surfaces with model fluids was doing with the aid of graphic analysis. The fluids used for testing: destile water, dijodmethan and ethylenglycol. Obtain angles of wettability was instrumental to analysis of hydrophobic qualities of these surfaces. The SiO2 - Ag layers was dipped on samples of flax, viscose, cotton and polyester by using sol-gel method. On these samples was evaluated inhibiting effect in face of Escherichia Coli. These effects are evaluated in term of application in textile industry.
Diploma thesis deals with research of special surface modifications of polymers. Thesis is split in theoretical and experimental part. Theoretical part cover techniques of sylilation and sol-gel method, characteristic of surface attributes and characteristic of microorganisms. Experimental part cover the self experiment. Samples of polyester, polypropylene, polyvinyl alcohol, polyacrylonitrile, cotton, wool, viscose, lyocel and for comparing of effects also glass, was silylated. Research of wettability of particular polymeric surfaces with model fluids was doing with the aid of graphic analysis. The fluids used for testing: destile water, dijodmethan and ethylenglycol. Obtain angles of wettability was instrumental to analysis of hydrophobic qualities of these surfaces. The SiO2 - Ag layers was dipped on samples of flax, viscose, cotton and polyester by using sol-gel method. On these samples was evaluated inhibiting effect in face of Escherichia Coli. These effects are evaluated in term of application in textile industry.
Description
katedra: KTC; přílohy: 1 cd; rozsah: 82 s., 20 s. obr. príloh
Subject(s)
kľúčové slova, silylacia, metóda sól-gél, polyméry, baktericidné vlastnosti, zmáčavosť, kontaktný uhol, silylation, sol-gel method, polymers, bactericidal charakteristic, wettability, contact angle