Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/60420
Type: Artigo de periódico
Title: INTERFACIAL REACTIONS AND SELF-ADHESION OF POLYDIMETHYLSILOXANES
Author: BOTTER, W
SOARES, RF
GALEMBECK, F
Abstract: Polydimethylsiloxane (PDMS) oil and crosslinked rubber react with hydroxylated surfaces, when heated at 250-300-degrees-C. PDMS is thus chemically bound to silicate glass sheets and to iron hydrous oxide particles. As a result, stable and adherent PDMS coatings may be obtained over glass, by heating silicone oil spread over glass sheets. Glass-PDMS-glass adhesive joints can also be obtained by heating preformed, crosslinked silicone sheets between glass parts. Also, PDMS rubber is heat-stabilized by in situ-generated iron hydrous oxide particles. These results are explained by considering that active Si-O chain ends, formed by chain scission, bind to surface hydroxyl groups, in a reaction competitive with the formation of cyclic oligomers. PDMS can thus be seen as a thermally-activated, reactive adhesive.
Subject: POLYDIMETHYLSILOXANE
PDMS
SILICONE RUBBER AND OIL
IRON OXIDE
SILICATE GLASS
POLYMEROXIDE INTERFACES
SURFACE MODIFICATION
THERMAL ACTIVATION
Country: Holanda
Editor: Vsp Bv
Rights: fechado
Identifier DOI: 10.1163/156856192X00449
Date Issue: 1992
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.