A carregar...
Publicação
Polymer flow dynamics in microimpressions: An experimental approach
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 910.53 KB | Adobe PDF |
Orientador(es)
Resumo(s)
The melt flow dynamics of acrylonitrile-butadiene-styrene (ABS) and polypropylene (PP) in a variable thickness microimpression was assessed by monitoring cavity temperature and pressure as relevant process parameters. A micromoulding block with a variable thickness cavity was designed, manufactured and instrumented with pressure and temperature sensors, acting as monitoring devices as well as flow position markers during filling. A full factorial design of experiment (DOE) was carried to optimize the filling of the microimpression. This study with ABS and PP suggests that mould temperature is the more important parameter for the entire micromoulding thickness range under analysis. Nevertheless, the influence of the melt temperature and the injection speed were found to depend on the micromoulding thickness and the polymer type.
Descrição
Palavras-chave
DOE Microinjection moulding Monitoring Polymer dynamics
Contexto Educativo
Citação
T.V. Zhiltsova, M.S.A. Oliveira, J.A. Ferreira, J.C. Vasco, A.S. Pouzada, A.J. Pontes, Polymer flow dynamics in microimpressions: An experimental approach, Polymer Testing, Volume 32, Issue 3, 2013, Pages 567-574, ISSN 0142-9418, https://doi.org/10.1016/j.polymertesting.2013.02.005.
Editora
Elsevier