Autor: | Walter Schubert, Thomas Brock, Birte Bannert, Michael Osterhold |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Macromolecular Symposia. 187:823-834 |
ISSN: | 1521-3900 1022-1360 |
DOI: | 10.1002/1521-3900(200209)187:1<823::aid-masy823>3.0.co;2-9 |
Popis: | The study examines the effect of weathering on mechanical and chemical properties of two 2K (twopack, with and without light stabilisation additives) and one 1K (onepack) clearcoats, concentrating on scratch and mar resistance and acid etch resistance. The clearcoats were investigated before and in the course of accelerated weathering. For determining the mar resistance two different instruments were used: - AMTEC laboratory car wash equipment (rotating wet brush) - Crockmeter Explanations for the changes in clearcoat properties caused by weathering are given by Dynamic-Mechanical Analysis, FT-IR-Spectroscopy, Universal-hardness and surface tension measurements. The clearcoat systems investigated show a clear deterioration of their properties after short periods of accelerated weathering. This effect is more expressed for the clearcoat samples without light stabilizers. |
Databáze: | OpenAIRE |
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