Autor: Czech, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Band reactor for toxic and recalcitrant water contaminants
Autorzy:: Czech, B.
Ćwikła-Bundyra, W.
Powiązania:: https://bibliotekanauki.pl/articles/778635.pdf
Data publikacji:: 2007
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: fotokataliza
fotoreaktor
Me-TiO2/Al2O3
oczyszczanie ścieków
fenol
formaldehyd
photocatalysis
photoreactors
wastewater treatment
phenol
formaldehyde
Opis:: This paper deals with the problem of the photocatalytic reactor construction. The supported TiO2 on γ-Al2O3 modified with Mo or V addition was used as the photocatalyst, whereas phenol and formaldehyde were chosen as the model pollutants. The counter - current contact of reagents and catalysts is the main advantage of the construction and enables a significant COD reduction of the highly concentrated wastewaters.
Źródło:: Polish Journal of Chemical Technology; 2007, 9, 4; 18-20
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Reducing of on polymerization shrinkage by application of UV curable dental restorative composites
Autorzy:: Świderska, J.
Czech, Z.
Świderski, W.
Kowalczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/778914.pdf
Data publikacji:: 2014
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: dental compositions
polymerization shrinkage
multifunctional methacrylates
UV-curin
Opis:: This manuscript describes dental compositions contain in-organic fillers, multifunctional methacrylates and photoinitiators. The main problem by application and UV curing process is the shrinkage of photoreactive dental materials during and after UV curing process. Total shrinkage of UV curable dental composites is a phenomenon of polymerization shrinkage, typical behavior for multifunctional methacrylates during polymerization process. The important factors by curing of dental composites are: kind and concentration of used methacrylates, their functionality, double bond concentration, kind and concentration of added photoinitiator and UV dose. They are investigated UV-curable dental compositions based on 2,2-bis-[4-(2-hydroxy-3-methacryxloyloxypropyl)phenyl]propane (Bis-GMA) and containing such multifunctional monomers as 1,3-butanediol dimethacrylate (1,3-BDDMA), diethylene glycol dimethacrylate (DEGDMA), tetraethylene glycol dimethacrylate (T3EGDMA), trimethylolpropane trimethacrylate (TMPTMA), polyethylene glycol 200 dimethacrylate (PEG200DA). Reduction of polymerization shrinkage of dental compositions is at the moment a major problem by dental technology.
Źródło:: Polish Journal of Chemical Technology; 2014, 16, 3; 51-55
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Preparation, properties and potential applications of a photocurable varnish with pleasant limonene smell
Autorzy:: Bednarczyk, P.
Wróblewska, A.
Czech, Z.
Malko, M.W.
Rozwadowski, Z.
Markowska-Szczupak, A.
Powiązania:: https://bibliotekanauki.pl/articles/778106.pdf
Data publikacji:: 2016
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: varnishes with limonene
smelling varnishes
urethane acrylate
UV-curing coating
Opis:: Photocurable materials which are obtained on the basis of urethane acrylate resins are often used in the industry for the production varnishes or protective coatings. The main disadvantage which is connected with the utilization of these varnishes is their unpleasant smell during the process of production and curing. This work presents the photocurable varnish which was obtained on the basis of aliphatic urethane acrylate and R-(+)-limonene. The utilization of this raw materials allows to obtain the smelling coatings. The aim of this work were the studies on the influence of limonene molecules on the mechanical properties of the UV-cured coatings. These studies showed that the coatings with limonene molecules retain their properties, and are characterized by the very good adhesion, cohesion and high gloss. These kinds of varnishes can be applied for preparation of appropriate protective coatings on the surface of wood, metals, and nail plates. These protective coatings have not only pleasure smell but also can have the bactericidal and fungicidal properties. The studies performed with Escherichia coli ATCC29425 and Candida albicans confirmed these properties.
Źródło:: Polish Journal of Chemical Technology; 2016, 18, 2; 13-19
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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