Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/8885
Título: Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
Autor: Real, L. E. Pimentel
João, I. M.
Pimenta, S. I.
Diogo, H. P.
Palavras-chave: PVC-U
Degree of gelation
Dichloromethane
Differential scanning calorimetry
Tensile properties
Data: Set-2018
Editora: Elsevier
Citação: REAL, L. E. Pimentel; [et al] – Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods. Polymer Testing. ISSN 0142-9418. Vol. 70, (2018), pp. 481-485
Resumo: Health and Safety policies have led to the recommendation of alternative tests to evaluate the resistance to dichloromethane to estimate the degree of gelation of rigid PVC pipes (PVC-U). In this work, we confirm that DSC is the best alternative method for evaluating the degree of gelation of rigid PVC pipes, using the relation between the enthalpy of fusion of primary and secondary crystallites, which were measured from respective endotherms. The suitability of this method is established by comparison with experimental results obtained with the test for determining the resistance to dichloromethane. Indeed, this method has proven to be fairly reliable and is the only one that allows the quantification of the degree of gelation.
Peer review: yes
URI: http://hdl.handle.net/10400.21/8885
DOI: https://doi.org/10.1016/j.polymertesting.2018.08.001
ISSN: 0142-9418
Versão do Editor: https://reader.elsevier.com/reader/sd/pii/S0142941818309577?token=2EB64F37DA3362A5929AB0AD2AAB87C402858FBD28EC62E142CE318FF67F390807E9CFAB5DF9357B8FF55F02A77FC4DB
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos

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