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Bonding of activated ethylene–propylene rubber to surface–modified stainless steel

  • Film formation of self synthesized Polymer EPM–g–VTMDS (ethylene–propylene rubber, EPM, grafted with vinyltetramethyldisiloxane, VTMDS) was studied regarding bonding to adhesion promoter vinyltrimethoxysilane (VTMS) on oxidized 18/10 chromium/nickel–steel (V2A) stainless steel surfaces. Polymer films of different mixed solutions including commercial siloxane and silicone, dimethyl, vinyl group terminated crosslinker (HANSA SFA 42100, CAS# 68083-19-2, 0.35 mmol Vinyl/g) and platinum, 1,3-diethenyl-1,1,3,3-tetramethyldisiloxane complex Karstedt's catalyst (ALPA–KAT 1, CAS# 68478-92-2) were spin coated on V2A stainless steel surfaces with adsorbed VTMS thin layers in order to analyze film formation of EPM–g–VTMDS at early stages. Surface topography and chemical bonding of the high performance polymers on different oxidized V2A surfaces were investigated with X–ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), scanning electron microscopy (SEM) and surface enhanced Raman spectroscopy (SERS). AFM and SEM as well as XPS results indicated that the formation of the polymer film proceeds via growth of polymer islands. Chemical signatures of the essential polymer contributions, linker and polymer backbones, could be identified using XPS core level peak shape analysis and also SERS. The appearance of signals which are related to Si–O–Si can be seen as a clear indication of lateral crosslinking and silica network formation in the films on the V2A surface.

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Author of HS ReutlingenUlitzsch, Steffen; Bäuerle, Tim; Lorenz, Günter; Kandelbauer, Andreas
Erschienen in:Thin solid films
Place of publication:Amsterdam
Document Type:Journal article
Publication year:2023
Tag:NaOH treatment; Vinyltetramethyldisiloxane; X–ray photoelectron spectroscopy; atomic force microscopy; ethylene–propylene rubber; stainless steel V2A; surface enhanced Raman spectroscopy
Page Number:12
First Page:1
Last Page:12
Article Number:139642
PPN:Im Katalog der Hochschule Reutlingen ansehen
DDC classes:530 Physik
Open access?:Nein
Licence (German):License Logo  In Copyright - Urheberrechtlich geschützt