Influence of tribological test on the global conversion of natural composites
| Autor: | Analía Vázquez, Robin Zuluaga, Cristina Castro, Carlos Eduardo Correa, Santiago Betancourt, Piedad Gañán |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Double bond natural fiber composites Vinyl ester macromolecular substances 02 engineering and technology lcsh:Chemical technology 010402 general chemistry 01 natural sciences Styrene chemistry.chemical_compound global conversion Chemical Engineering (miscellaneous) lcsh:TP1-1185 Fourier transform infrared spectroscopy Composite material Curing (chemistry) chemistry.chemical_classification Organic Chemistry vinyl ester matrix technology industry and agriculture FTIR analysis Tribology tribology test 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry 0210 nano-technology |
| Zdroj: | Polímeros v.27 n.4 2017 Polímeros (São Carlos. Online) Associação Brasileira de Polímeros (ABPol) instacron:ABPO Polímeros, Vol 27, Iss 4, Pp 339-345 |
| ISSN: | 1678-5169 0104-1428 |
| DOI: | 10.1590/0104-1428.14916 |
| Popis: | The vinyl ester resins and natural composites have emerged as a suitable alternative in tribological application due to mechanical behavior, which relates to the conversion of the double bonds. During tribological test the permanent contact between polymeric sample and counterpart can increase the temperature affecting the crosslinking of the samples. These variations have direct implications in the curing rate and the global conversion. In this work, the FTIR evaluation is used to evaluate possible changes on the global conversion of vinyl ester and their composites reinforced with Musaceae fiber bundles and cured using two hardeners, after a specific tribological test. Increments around 15% on global conversion of styrene double bonds were observed for neat matrix and composites using both hardeners, suggesting that during tribology test some alterations on resin structure takes place. These results open alternatives to manipulate the curing conditions in order to control the tribological behavior. |
| Databáze: | OpenAIRE |
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