Effect of calcium carbonate on the abrasive wear of melt processing equipment in filled systems
| Autor: | Susan Garrett, Laurie Joiner, Gary R. Mobley, Allison Anne Calhoun, Tonia Boutelle |
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| Rok vydání: | 2002 |
| Předmět: |
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Materials science Polymers and Plastics General Chemical Engineering Alloy Metallurgy Abrasive Plastics extrusion Mineralogy General Chemistry Tribology engineering.material chemistry.chemical_compound Calcium carbonate chemistry Particle-size distribution Materials Chemistry engineering Extrusion Particle size |
| Zdroj: | Journal of Vinyl and Additive Technology. 8:271-277 |
| ISSN: | 1548-0585 1083-5601 |
| DOI: | 10.1002/vnl.10374 |
| Popis: | Calcium-carbonate-loaded systems were tested for abrasive wear on extruder parts through a test that measures the weight of a bronze alloy screen placed in a supporting screen pack before and after a 5500 g extrusion run. The effects of particle size and mineral identity were explored in this work as well as the effect of mineral loading level. It was found that the abrasiveness of calcium carbonate is, as expected, much lower than that of titanium dioxide and increases with increased loading levels. It was also shown that the larger the median of the particle size distribution (PSD), the greater the abrasive wear on the screen. Finally, it was shown that the degree of wear could be correlated with the level of impurities present in the natural mineral. |
| Databáze: | OpenAIRE |
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