Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sylvia Teixeira"'
Autor:
E.G. Chaves, Christine Rabello Nascimento, Celio A. Costa, Luiz Carlos Bertolino, Sylvia Teixeira
Publikováno v:
Volume 3: Materials Technology.
A PVDF grade typically used in off-shore applications was annealed at 70, 90 and 120°C. The samples were characterized and it was observed a small change in the crystallinity, but, on the other hand, the Elastic modulus of the sample annealed at 120
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65539b25e6e8a9a649ad4011456399db
https://doi.org/10.1115/omae2020-18953
https://doi.org/10.1115/omae2020-18953
Autor:
Celio Albano da Costa Neto, José Renato M. de Sousa, Sylvia Teixeira, Ingrid Cristina S. Pereira, E.G. Chaves
Publikováno v:
Volume 3: Materials Technology.
Polyvinylidene fluoride (PVDF) is an engineering thermoplastic having a high degree of sensibility to crack, which affects long-term mechanical behavior. This study evaluates the crack-sensitive of PVDF for one commercial-grade through the developmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af61dddc9500cba08efb7cf7fc69e944
https://doi.org/10.1115/omae2020-18861
https://doi.org/10.1115/omae2020-18861
Publikováno v:
Volume 4: Pipelines, Risers, and Subsea Systems.
This study presents the effect of bending strain upon the structure and mechanical behavior of poly(vinylidene fluoride) (PVDF). Using the ISO 22088-3 Bent Strip Method, the PVDF samples were submitted to 3.5 % and 7.0 % strain in bending for 21 days
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4c8b1ea404606a3193317221d1b7e8
https://doi.org/10.1115/omae2020-18859
https://doi.org/10.1115/omae2020-18859
Autor:
Sylvia Teixeira, Nara Guidacci Berry, Maria Marjorie Contreras, Celio A. Costa, Roberto P.C. Neto, Marysilvia Ferreira da Costa, Christine Rabello Nascimento
Publikováno v:
Polymer Testing. 68:153-159
Poly(vinylidene fluoride) was relaxed at different temperatures (23, 80 and 120 °C) and strains (3.5, 7 and 10%) during 24 h. The material, as processed and all relaxed conditions, was characterized by tensile tests and time-domain nuclear magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30b150c04ac350cdcfa007ea856f523
https://doi.org/10.1016/j.polymertesting.2018.03.051
https://doi.org/10.1016/j.polymertesting.2018.03.051
Autor:
A.H. Monteiro, E.G. Chaves, L. G. de Medeiros, Sylvia Teixeira, João Reis, H.S. da Costa Mattos
Publikováno v:
Polymer Testing. 58:40-47
The present paper is concerned with the experimental and theoretical investigation of the progressive accumulation of inelastic deformation observed in cyclic tension tests performed on a particular polyamide. The elastic properties are not strongly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e97b4bda6dcedb79a644a7f3f633743f
https://doi.org/10.1016/j.polymertesting.2016.12.009
https://doi.org/10.1016/j.polymertesting.2016.12.009
Autor:
P.P. Coutinho, H.S. da Costa Mattos, João Reis, T. de Sant́anna, A.H. Monteiro, Sylvia Teixeira, E.G. Chaves
Publikováno v:
Polymer Testing. 53:267-275
The present work is concerned with the thermo-mechanical analysis of a particular aliphatic polyamide with long alkyl chains used in the internal sheath of flexible pipes. The main focus is to analyse the coupled influence of temperature and ageing o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc6afe76aa2c067c37a8c956e63d539
https://doi.org/10.1016/j.polymertesting.2016.06.005
https://doi.org/10.1016/j.polymertesting.2016.06.005
Publikováno v:
Volume 5: Pipelines, Risers, and Subsea Systems.
This study presents the mechanical properties evaluation of two commercial grades of PVDFs, which were extruded with the same parameters but with different cooling temperatures. After processing, stress relaxation with 7% strain was imposed and tensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b8a57153000387675cda71516c126d3
https://doi.org/10.1115/omae2018-77667
https://doi.org/10.1115/omae2018-77667
Publikováno v:
Polymer Testing. 34:10-16
Nano-load (n-IIT) and micro-load (μ-IIT) instrumented indentation tests (IITs) were used to characterize elastic modulus and hardness in a semicrystalline polymer. The tests were conducted with loading rates ranging from 4.9 to 317 mN.min −1 for n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44ec9e8ed12b73ea39564d7daa896e44
https://doi.org/10.1016/j.polymertesting.2013.12.006
https://doi.org/10.1016/j.polymertesting.2013.12.006
Autor:
Ana Lúcia Nazareth da Silva, Eloi Alves da Silva Filho, Eustáquio V.R. Castro, Geovane Lopes de Sena, Wanderson Romão, Regina C. L. Guimarães, Marco-A. De Paoli, Sylvia Teixeira
Publikováno v:
Journal of Applied Polymer Science. 114:1777-1783
The influence of temperature and pH on the ageing of piping made from polyamide 11 (PA-11) was studied using water from an oilfield (pH = 5.5) and deionized water (pH = 7.0) with monitoring by corrected inherent viscosity (CIV) measurements. The hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b242d11c56f6d0263f618ea8a486097
https://doi.org/10.1002/app.30793
https://doi.org/10.1002/app.30793
Autor:
Raphael A. A. F. da Costa, Marisa C. G. Rocha, Aline P. Lima, Ana Lúcia Nazareth da Silva, Bianca M. da Rocha, Sylvia Teixeira, Edson S. de Lima, Fernanda M. B. Coutinho, Maria Margareth Moreira, Luciene S. Santos
Publikováno v:
Journal of Applied Polymer Science. 101:2559-2564
Calcium carbonate (CaCO3)/high density polyethylene (HDPE) composites were prepared in a HAAKE twin screw extruder, using the experimental conditions defined by the factorial experimental design presented in a prior study. In this study, the effect o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffaa9deb0d6ddccc01b62230d9d7db16
https://doi.org/10.1002/app.23920
https://doi.org/10.1002/app.23920