The effect of powdered silica gel on the ageing of polyorganosiloxane rubber

Autor:	A.A. Berlin, S.M. Mezhikovskii, R.M. Aseyeva, O.G. Sel'skaya, A.A. Kholodovskaya
Rok vydání:	1973
Předmět:	Filler (packaging) Silica gel Kinetics General Engineering chemistry.chemical_compound chemistry Natural rubber Ageing visual_art Polymer chemistry visual_art.visual_art_medium Degradation (geology) Organic chemistry Bond cleavage Fumed silica
Zdroj:	Polymer Science U.S.S.R.. 15:2104-2111
ISSN:	0032-3950
DOI:	10.1016/0032-3950(73)90427-9
Popis:	A study is made of the effect of powdered silica gel (U-333) on the kinetics of the thermal and thermooxidative degradation of polyorganosiloxanes. It is shown that the silica gel filler not only inactivates OH groups of the siloxanes and inhibits chain processes of oxidation of the substituents, but is also capable of initiating heterocyclic scission of SiOSi bonds of the rubners. The role of the active centres on the silica gel surface is considered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::35002bae0017a4d364e2f4e0363a1a2a https://doi.org/10.1016/0032-3950(73)90427-9 Zobrazit plný text záznamu