Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging
Synchrotron infrared chemical imaging was employed to examine and assess the extent of interlayer component migration within multilayer automotive paint samples, with a particular emphasis on the cross-linking additive melamine. Two dimensional infrared chemical images revealed that melamine consist...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier Ireland Ltd
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/5354 |
| _version_ | 1848744773648646144 |
|---|---|
| author | Maric, Mark van Bronswijk, Wilhelm Lewis, Simon Pitts, K. Martin, D. |
| author_facet | Maric, Mark van Bronswijk, Wilhelm Lewis, Simon Pitts, K. Martin, D. |
| author_sort | Maric, Mark |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Synchrotron infrared chemical imaging was employed to examine and assess the extent of interlayer component migration within multilayer automotive paint samples, with a particular emphasis on the cross-linking additive melamine. Two dimensional infrared chemical images revealed that melamine consistently diffuses in select paint samples from the underlying basecoat into the outermost clear coat layer. Pigments from the basecoat were also found to migrate into the adjoining layers. This is significant as the relative abundance of both melamine and pigments will vary greatly depending upon the region of the layer analysed. This component migration will undoubtedly impact the information gleaned from a questioned sample via library searching software or multivariate statistics. As a result, appropriate analytical protocols will need to be utilised to mitigate the effects of interlayer pigment and melamine diffusion, so as to afford a true representation of the composition of the coating for forensic identification purposes. |
| first_indexed | 2025-11-14T06:06:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-5354 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:06:48Z |
| publishDate | 2013 |
| publisher | Elsevier Ireland Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-53542019-02-19T04:26:27Z Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging Maric, Mark van Bronswijk, Wilhelm Lewis, Simon Pitts, K. Martin, D. trace evidence automotive paint infrared imaging melamine synchrotron Synchrotron infrared chemical imaging was employed to examine and assess the extent of interlayer component migration within multilayer automotive paint samples, with a particular emphasis on the cross-linking additive melamine. Two dimensional infrared chemical images revealed that melamine consistently diffuses in select paint samples from the underlying basecoat into the outermost clear coat layer. Pigments from the basecoat were also found to migrate into the adjoining layers. This is significant as the relative abundance of both melamine and pigments will vary greatly depending upon the region of the layer analysed. This component migration will undoubtedly impact the information gleaned from a questioned sample via library searching software or multivariate statistics. As a result, appropriate analytical protocols will need to be utilised to mitigate the effects of interlayer pigment and melamine diffusion, so as to afford a true representation of the composition of the coating for forensic identification purposes. 2013 Journal Article http://hdl.handle.net/20.500.11937/5354 10.1016/j.forsciint.2013.01.032 Elsevier Ireland Ltd fulltext |
| spellingShingle | trace evidence automotive paint infrared imaging melamine synchrotron Maric, Mark van Bronswijk, Wilhelm Lewis, Simon Pitts, K. Martin, D. Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title | Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title_full | Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title_fullStr | Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title_full_unstemmed | Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title_short | Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| title_sort | characterisation of chemical component migration in automotive paint by synchrotron infrared imaging |
| topic | trace evidence automotive paint infrared imaging melamine synchrotron |
| url | http://hdl.handle.net/20.500.11937/5354 |