Temat: badania termograwimetryczne - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Badania spektroskopowe (IR) i termograwimetryczne utlenionych adsorbentów węglowych
Studies of oxidized carbonaceous adsorbents by IR spectroscopy and thermogravimetry
Autorzy:: Choma, J.
Jaroniec, M.
Burakiewicz-Mortka, W.
Powiązania:: https://bibliotekanauki.pl/articles/237065.pdf
Data publikacji:: 2000
Wydawca:: Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:: adsorpcja
właściwości adsorpcyjne
adsorbenty węglowe
węgle aktywne
utlenianie adsorbentów węglowych
badania spektroskopowe
badania termograwimetryczne
termograwimetria
Opis:: Carbonaceous adsorbents (active carbons and carbon blacks) were oxidized in aqueous solutions of hydrogen peroxide, perchloric acid and nitric acid at room temperature and additionally at boiling temperature in the case of nitric acid. Changes occurring on the carbon surface during oxidation were monitored by IR spectroscopy and high-resolution thermogravimetry. Various oxygen groups (carboxylic, phenolic, carbonyl, ether) of differentiated thermal stability were found to form on the carbon surface.This effect was most distinct on active carbons and carbon blacks oxidized with HNO3 at boiling temperature. Carbons oxidized under these conditions were more hydrophilic than those of corresponding unoxidized samples.
Źródło:: Ochrona Środowiska; 2000, 1; 3-6
1230-6169
Pojawia się w:: Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Selected issues concerning degradation of material in the production of injection molded plastic components
Autorzy:: Jałbrzykowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/386404.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: dyes for plastic materials
thermal degradation
thermogravimetric tests
tribological tests
barwniki do tworzyw sztucznych
degradacja termiczna
badania termograwimetryczne
testy tribologiczne
Opis:: This paper presents the problem of thermal degradation of thermoplastic materials processed using the injection method. Attention was paid to the issue of the optimal selection of a dye for modifying the base materials. For the selected materials and dyes, derivatograph tests were performed in order to assess their thermal characteristics and breakdown kinetics. Additionally, tribological tests and microscope observations of selected samples were performed. The obtained test results suggest a diverse level of thermal processes in the analyzed materials. This is crucial for the appropriate selection of dyes for plastic materials. As it turned out, the tribological properties of materials can also influence the technological quality of the injected alloy.
Źródło:: Acta Mechanica et Automatica; 2016, 10, 3; 173-180
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

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