AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS

Bibliographic Details
Main Author:	KIM, JONG MYOUNG
Language:	English
Published:	University of Cincinnati / OhioLINK 2002
Subjects:	rubber brass adhesion TOF-SIMS copper sulfide tire steel belt cord squalene vulcanization
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1016563887

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-ucin10165638872021-08-03T06:08:34Z AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS KIM, JONG MYOUNG rubber brass adhesion TOF-SIMS copper sulfide tire steel belt cord squalene vulcanization The adhesion interface formed between the squalene model system and the brass panel was investigated with various analysis techniques. Preliminary experiments were carried out to establish the methodologies to monitor the change during the curing process both in squalene and adhesion interface using GPC (Gel Permeation Chromatography) and TOF-SIMS (Time-of-flight Secondary Ion Mass Spectrometry). GPC analysis of the vulcanization product of the squalene mixture confirmed the formation of the intermediates during the vulcanization reaction. TOF-SIMS analysis of the surface of the brass panel cured in the squalene model mixture showed the incorporation of squalene into the adhesion layer and the existence of the accelerator fragments on the brass surface. Depth profiles and the mass spectra of the adhesion interface demonstrated the formation of the copper sulfide layer. Highly sensitive TOF-SIMS proved to be the adequate tool to investigate the cobalt distribution in the adhesion layer enough to differentiate the depth profile of the organic and inorganic cobalt species. Based upon the methodologies developed, compounding ingredients effects were investigated. It was found that the absence of the double bond on the squalene greatly suppressed the decomposition rate of the sulfenamide accelerator and subsequently the formation of the copper sulfide in the adhesion layer also. It also greatly deterred the incorporation of the cobalt species in the adhesion interface. Removal of carbon black and cobalt salt from the formulation both retarded the initiation of the accelerator decomposition and the effect was larger without cobalt salt. Morphology of the copper sulfide dendrites formed at different curing temperature was investigated with SEM (Scanning Electron Microscopy). At 150°C, the copper sulfide formed on the brass was amorphous with high surface area which would give the higher mechanical interlocking force than the highly crystalline, thin plate-shaped copper sulfide formed at 170°C. Crystallographic study of the adhesion interface with grazing incidence X-ray diffraction on synchrotron x-ray source revealed the existence of the ZnO at 150°C and ZnS and Cu <sub>1.8</sub> S at 170°C. 2002-06-21 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1016563887 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1016563887 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	rubber brass adhesion TOF-SIMS copper sulfide tire steel belt cord squalene vulcanization
spellingShingle	rubber brass adhesion TOF-SIMS copper sulfide tire steel belt cord squalene vulcanization KIM, JONG MYOUNG AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
author	KIM, JONG MYOUNG
author_facet	KIM, JONG MYOUNG
author_sort	KIM, JONG MYOUNG
title	AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
title_short	AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
title_full	AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
title_fullStr	AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
title_full_unstemmed	AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS
title_sort	investigation of the adhesion interface formed in the squalene model systems on brass
publisher	University of Cincinnati / OhioLINK
publishDate	2002
url	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1016563887
work_keys_str_mv	AT kimjongmyoung aninvestigationoftheadhesioninterfaceformedinthesqualenemodelsystemsonbrass AT kimjongmyoung investigationoftheadhesioninterfaceformedinthesqualenemodelsystemsonbrass
_version_	1719431574678667264

AN INVESTIGATION OF THE ADHESION INTERFACE FORMED IN THE SQUALENE MODEL SYSTEMS ON BRASS

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