Influence of weathering and substrate roughness on the interfacial adhesion of acrylic coating based on an increasing load scratch test
| Autor: | Tae-Won Seo, Jong-Il Weon |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Thermoplastic Materials science integumentary system Scanning electron microscope Mechanical Engineering Surface finish computer.software_genre Gloss (optics) Polyolefin Load testing chemistry.chemical_compound chemistry Mechanics of Materials Scratch Surface roughness General Materials Science sense organs Composite material skin and connective tissue diseases computer computer.programming_language |
| Zdroj: | Journal of Materials Science. 47:2234-2240 |
| ISSN: | 1573-4803 0022-2461 |
| Popis: | An increasing normal load scratch test was employed to study the scratch behavior of acrylic coatings. The effects of weathering and substrate surface roughness on the interfacial adhesion of acrylic-coated thermoplastic polyolefin (TPO) systems were investigated. The increasing load test gives valuable information regarding the onset location to failure and the critical normal load for interfacial delamination. Both flatbed scanner and scanning electron microscope are utilized to characterize the scratch-induced damage mechanism of the coated TPO system. An increase in weathering time and in surface roughness of the virgin TPO leads to the increase in scratch resistance of acrylic coating. In addition, with increasing weathering time there is an increase in discoloration, while a decrease in gloss occurs. The correlation between the change of scratch coefficient of friction and the onset location of interfacial delamination is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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