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Wyszukujesz frazę "scouring" wg kryterium: Wszystkie pola


Wyświetlanie 1-2 z 2
Tytuł:
A study on damage to PLA knitted fabrics during scouring and bleaching
Autorzy:
Baig, G. A.
Carr, C. M.
Powiązania:
https://bibliotekanauki.pl/articles/778625.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
PLA
Scouring
Bleaching
Weight loss
mechanical properties
SEM
Opis:
Ingeo® PLA (polylactic acid) knitted fabric was scoured through an exhaust technique. The scouring was carried out with sodium carbonate in the presence of a detergent at various concentrations and temperatures. The scoured fabric was bleached with various oxidative bleaching agents. Bleaching was carried out with hydrogen peroxide, sodium chlorite and sodium hypochlorite. Hydrogen peroxide was applied by exhaust and cold pad batch (CPB) techniques. It was observed that during scouring PLA fabric was degraded at high alkali concentrations and processing temperatures. The scouring temperature above 60oC proved to be deleterious due to the scouring solution penetrating into the polymer structure and damaged the fiber. Sodium chlorite and sodium hypochlorite caused little damage to the mechanical properties of PLA. Hydrogen peroxide when applied by the CPB technique did not reduce strength appreciably but when applied by the exhaust technique decreased the strength significantly. SEM analysis revealed that hydrogen peroxide caused holes and slit formation in the fiber structure.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 3; 45-50
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparations and production technologies of cleansing milks based on cenosphere obtained from flying ashes
Autorzy:
Sułek, M.W.
Wasilewski, T.
Klimaszewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/779246.pdf
Data publikacji:
2009
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
mikrosfera
mleczko czyszczące
jakość
cenosphere
household products
scouring milk
quality
Opis:
Application of cenosphere obtained from flying ashes as effective abrasive for cleansing milks was analyzed in the paper. Preparations and production technology of ten milks with various contents of cenosphere (from 2% to 20%) were designed. The products were tested to determine their most important usable properties. The efficiency of application and dispersion, cleansing ability, ability to emulsify fatty soils and destructing activity, measured as polish of surfaces, were analyzed. Selected trade products were tested analogously. The results obtained show that cenosphere can be a good replacement of abrasives that are widely used. The cenosphere-based products revealed comparable usable properties to the trade products (or even better). It is probable that producers of cleansers will pay their attention to this waste, which will bring profits to the natural environment.
Źródło:
Polish Journal of Chemical Technology; 2009, 11, 1; 50-54
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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