Temat: disperse - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The influence of pH adjusted with different acids on the dyeability of polyester fabric
Autorzy:: Miljkovic, M. M.
Djordjevic, D. M.
Miljkovic, V. M.
Stamenkovic, M.
Stepanovic, J.
Powiązania:: https://bibliotekanauki.pl/articles/949502.pdf
Data publikacji:: 2014
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: polyester
dyeing
disperse
dyes
pH
AIDS
Opis:: The influence of using formic, oxalic, citric, tartaric, hydrochloric, nitric, sulphuric and phosphoric acid for dyebath pH adjustment was investigated upon the dyeing of polyester fabric with CI Disperse Yellow 60. The positions of colour in CIELab coordinates of the samples dyed with the addition of tested acids were assessed and compared to those dyed with the addition of acetic acid. It was found that the differences in dyeabilities obtained with the addition of citric, oxalic, hydrochloric, nitric and sulphuric acid are entirely acceptable according to both M&S 83A and CMC (2:1) standards in comparison to the dyeability obtained with the addition of acetic acid.
Źródło:: Polish Journal of Chemical Technology; 2014, 16, 4; 1-5
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:: A novel biocompatibility test for disperse materials
Autorzy:: Tereshchenko, V.
Degtiariova, L.
Segeda, T.
Ivanova, O.
Zinabadinova, S.
Lavrinenko, V.
Powiązania:: https://bibliotekanauki.pl/articles/3183.pdf
Data publikacji:: 2015
Wydawca:: Instytut Medycyny Wsi
Tematy:: biocompatibility test
disperse material
chicken
embryo
charcoal
asbestos
Opis:: Introduction. Development of novel biocompatibility tests represents an urgent problem. Use of chicken embryos minimizes the effect of exogenous factors on the experimental course (as the chicken embryo develops in medium it is almost completely isolated from external effects), enables the observation of physiological and pathological processes in the dynamics and assessment of the response of the body response to various materials in many cell populations. Objective. We aimed to show the possibility of using chicken embryo as a test system for evaluation of the biological effects of powdered materials. Materials and methods. In this study, we applied developing chicken embryos produced by incubation of Highline white eggs. Test and control groups (200 embryos in total) were used. Powdered materials were introduced into the embryo yolk sac in the form of suspension in biocompatible dextran (rheopolyglucine).The material was sterilized for 60 min at 120 °С. Two disperse materials, activated charcoal and asbestos powders, were selected to assess the capabilities of the method. Morphological (review, selective histochemical, and electron microscopy) examination methods were applied in testing, which produced the following results. Results. Model efficacy was confirmed by testing certain substances, such as activated charcoal and asbestos. Faster growth and accelerated development of chicken embryos, the absence of tissue pathological reactions, was indicative of the biocompatibility of activated charcoal. Poor biocompatibility of asbestos was concluded from its multiple teratogenic effects detected for the first time for this material. Conclusions.The paper contains motivation and experimental data regarding the usability of chicken embryos in integrated testing of disperse material biocompatibility.
Źródło:: Journal of Pre-Clinical and Clinical Research; 2015, 09, 1
1898-2395
Pojawia się w:: Journal of Pre-Clinical and Clinical Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluation of electromagnetic filtration efficiency using least squares support vector model
Autorzy:: Yuceer, M.
Yildiz, Z.
Abbasov, T.
Powiązania:: https://bibliotekanauki.pl/articles/110758.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: electromagnetic filtration
disperse systems
support vector machine (SVM)
Opis:: The present study aims to apply a least squares support vector model (LS–SVM) for predicting cleaning efficiency of an electromagnetic filtration process, also called quality factor, in order to remove corrosion particles (rust) of low concentrations from water media. For this purpose, three statistical parameters: correlation coefficient, root mean squared error and mean absolute percentage error were calculated for evaluating the performance of the LS–SVM model. It was found that the developed LS–SVM can be used to predict the effectiveness of electromagnetic filtration process.
Źródło:: Physicochemical Problems of Mineral Processing; 2015, 51, 1; 173-180
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Quality Improvement of Oil-Contaminated Wastewater, Meant for Injection into Formation, Using Two-Stage Treatment Technology
Autorzy:: Golubev, I.
Karpova, Y.
Powiązania:: https://bibliotekanauki.pl/articles/123927.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: oil
reservoir colmatation
oil-contaminated wastewater
formation contamination
water conditioning
magnetic treatment
fractured rocks
disperse rocks
Opis:: The paper deals with water conditioning issues in oil-field development using water-flooding. It is common knowledge that injected water contains oil residues and mechanical impurities, which affect permeability of geological horizon. It has been shown that these water impurities could intensify rock colmatation up to a full clogging of pores and fractures. Hence, issues of improving quality of injected water, aimed to ensure enhancement of reservoir properties, have been studied from a variety of new angles. There are given results of conducted test experiments as well as detailed description of elaborated equipment design. It has been established that two-stage treatment technology proposed in the paper, by making use of magnetic treatment device and sewage tank with liquid hydrophobic layer, will allow to considerably improve quality of injected water. Suggested water treatment unit appears to be highly applicable, providing a maximum effect at a minimum material cost.
Źródło:: Journal of Ecological Engineering; 2017, 18, 3; 48-52
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: New arylhydrazonothiazolidin-5-one disperse dyes for dyeing polyester fibers
Autorzy:: Metwally, M.A.
Khalifa, M.E.
Attia, E.A.
Amer, F.A.
Powiązania:: https://bibliotekanauki.pl/articles/778416.pdf
Data publikacji:: 2010
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: tiazolidyn-5-on
sole diazoniowe
barwniki zawiesinowe
włókna poliestrowe
właściwości barwne
thiazolidin-5-one
diazonium salts
azo coupling
disperse dyes
polyester fibers
fastness properties
color properties
Opis:: A series of new thiazolidin-5-one disperse dyes was synthesized from the reactions of 2-substituted 3-phenylthiazolidinones with various aryldiazonium chlorides. The synthesized dyes were characterized by UV-visible absorption, IR, NMR and MS spectroscopy. The dyes gave orange to reddish-violet shades with very good depth on polyester fibers. The dyed fabrics show moderate to good fastness to light and very good to excellent fastness to washing and perspiration. Also, the assessment of color coordinates was discussed.
Źródło:: Polish Journal of Chemical Technology; 2010, 12, 1; 1-6
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of the Sorption Phenomena Mechanism of Polyacrylonitrile Fibres for Selected Dyes in the Aspect of Structural Changes Resulting from Thermal Stabilisation Processes
Ocena mechanizmu zjawiska sorpcji wybranych barwników przez włókna poliakrylonitrylowe w aspekcie zmian ich struktury wynikających z procesu stabilizacji termicznej
Autorzy:: Marczak, Ewa
Marczak, Piotr
Sztajnowski, Sławomir
Lipp-Symonowicz, Barbara
Powiązania:: https://bibliotekanauki.pl/articles/233271.pdf
Data publikacji:: 2020
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: polyacrylonitrile fibre
molecular structure
supramolecular structure
FTIR
CDT
PMI
heat treatment
sorption
basic dyes
disperse dyes
włókno poliakrylonitrylowe
struktura molekularna
struktura supramolekularna
PIM
obróbka cieplna
sorpcja
barwniki zasadowe
barwniki zawiesinowe
Opis:: The aim of the research was to analyse the influence of the initial heat treatment of polyacrylonitrile fibres on their sorption properties in relation to selected basic and disperse dyes, in order to select the dyeing variants most beneficial from the point of view of increasing the sorption capacity of commonly used dyes and improving the dyeing process. Research was carried out on a fibre produced on an industrial scale, using dyes of basic application importance, which differ in the diffusion properties of the molecules and the mechanism of binding with the fibre material. Thermal treatment of the fibre was carried out in various media (air, water, steam), with various variants of the temperature and its duration, i.e. under the conditions commonly used in fibre preprocessing processes and their "improvement". During the research, several different measurement methods were used to assess changes in the molecular and supramolecular structure of the fibre material: the infrared absorption spectroscopy method, the critical fibre dissolution measurement method, the densitometric method, and the interferential polarisation microscopy method. Fibre sorption changes resulting from the modification of the structure of the fibre under the influence of thermal treatment were analysed from the point of view of improving the efficiency of dye use and shortening the dyeing time based on commonly accepted values of the sorption index C_b and kinetic sorption index: t_0.5 for basic dyes and t_0.7 for disperse dyes.
Celem badań było określenie wpływu wstępnej obróbki cieplnej badanych włókien poliakrylonitrylowych na ich właściwości sorpcyjne w stosunku do wybranych barwników zasadowych i zawiesinowych. Badania prowadzono na włóknach produkowanych w skali przemysłowej, używając barwników o dużym znaczeniu aplikacyjnych, różniących się właściwościami dyfuzyjnymi cząsteczek oraz mechanizmem wiązania z tworzywem włókna. Obróbkę termiczną prowadzono w różnych mediach (powietrze, woda, para wodna), w różnych wariantach temperatury i czasu jej trwania. W badaniach zastosowano metody pomiarowe, pozwalające oceniać zmiany parametrów budowy cząsteczkowej i nadcząsteczkowej tworzywa włókien: metodę spektroskopii absorpcyjnej w podczerwieni, metodę pomiaru krytycznego czasu rozpuszczania włókien, metodę densytometryczną oraz metodę mikroskopii interferencyjno-polaryzacyjnej. Zmiany zdolności sorpcyjnej włókien analizowano z punktu widzenia poprawy efektywności wykorzystania barwników i skrócenia czasu barwienia w oparciu o wartości wskaźnika sorpcji C_b oraz kinetycznych wskaźników sorpcji: t_0,5 dla barwnika zasadowego i t_0,7 dla barwników zawiesinowych.
Źródło:: Fibres & Textiles in Eastern Europe; 2020, 1 (139); 93-99
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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