Determination of carbon black content in HDPE — purge gas buoyancy effect

Autor:	Z. Ismail, S.L. Moh, M. Y. Ahmad Fuad
Rok vydání:	1997
Předmět:	Buoyancy Analytical chemistry chemistry.chemical_element Carbon black Polyethylene engineering.material Condensed Matter Physics Purge Nitrogen Oxygen chemistry.chemical_compound chemistry engineering High-density polyethylene Physical and Theoretical Chemistry Instrumentation Carbon
Zdroj:	Thermochimica Acta. 298:115-118
ISSN:	0040-6031
Popis:	Oxygen and air have been interchangeably used as the purge gas in the determination of carbon black content in polyethylene. This study shows that accuracy of the carbon black filler content is significantly affected by the choice of oxygen as the purge gas used to oxidise the carbon filler. It is believed that the difference in the density of the oxygen give rise to the buoyancy effect. Air, having closer density to the initial nitrogen purge gas in the analysis, is the better choice for purge gas for accuracy of analysis and reproducibility of results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ce4a22c2d12b4e36c6dbc6c967cfe7d https://doi.org/10.1016/s0040-6031(97)00121-4 Zobrazit plný text záznamu Full Text from ScienceDirect