| Texto completo | |
| Autor(es): |
Fonzar Pintao, Carlos Alberto
;
Baggio, Airton
;
Piedade, Lucas Pereira
;
de Angelo Sanchez, Luiz Eduardo
;
Bento Goncalves, Gilberto de Magalhaes
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | POLIMEROS-CIENCIA E TECNOLOGIA; v. 32, n. 2, p. 10-pg., 2022-01-01. |
| Resumo | |
This work presents an alternative to studying and determining the torsion modulus, G, in composites. For this purpose, we use a measuring system with a rotation motion sensor coupled with a torsion pendulum that allows for determining the angular position as a function of the time. Then, through an equation derived from mechanical spectroscopy studies that permits the calculation of G's value, the experiments focus on samples of different quantities of calcium carbonate (CaCO3) in unsaturated polyester resins. The results show that CaCO3 (33.33%W) fillers increase G's value by 88% compared with unsaturated resin (100%W). Furthermore, there is a density increase of approximately 21% with the addition of CaCO3, considering the same two samples, which makes these composites the most massive. The relationship between G and composite density shows that it is possible to change the amount of CaCO3 to increase torsion resistance values in a controlled way. (AU) | |
| Processo FAPESP: | 07/04094-9 - Medida do momento de inércia em sólidos e líquidos: momento de inércia e atrito interno |
| Beneficiário: | Carlos Alberto Fonzar Pintão |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 15/00851-6 - Biofuncionalização da liga Ti-15Zr com a adição de molibdênio e diferentes modificações de superfície |
| Beneficiário: | Diego Rafael Nespeque Correa |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |