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pro vyhledávání: '"A.A.S. Curvelo"'
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Autor:
A.A.S. Curvelo, E.S. Cadaxo-Sobrinho, Nelson Consolin-Filho, A.M. Regiani, T.M.H. Souza, Rogerio Antonio Sartori, Luís Carlos de Morais
Publikováno v:
Journal of Thermoplastic Composite Materials. 23:699-716
The aim of this research was to survey all possible combinations of cornstarch (S), lignosulfonate (LS), and glycerol (G) that may be used in preparing thermally molded thermoplastics. A ternary diagram was developed to define the best range of compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed1de3703e8f4170bc8fe1d9b92e014a
https://doi.org/10.1177/0892705709353721
https://doi.org/10.1177/0892705709353721
Publikováno v:
Carbohydrate Polymers. 77:526-529
This study describes the preparation and characterization of new starch cross-linked polyurethanes produced by the reaction of native cornstarch with a propylene oxide toluene diisocyanate oligomer. Infrared analysis confirmed the occurrence of the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abc912e630d42f3afb73cdd25c1486d
https://doi.org/10.1016/j.carbpol.2009.01.035
https://doi.org/10.1016/j.carbpol.2009.01.035
Autor:
Antonio J. F. Carvalho, Fabiola Vilaseca, Pere Mutjé, Jordi Girones, A.A.S. Curvelo, Maria Teresa Borges Pimenta
Publikováno v:
Carbohydrate Polymers. 74:106-113
In this paper, composites from polypropylene and Kraft pulp (from Pinus radiata) were prepared. Phenyl isocyanate, unblocked and phenol blocked derivatives of 4,4′-methylenebis (phenyl isocyanate) (MDI) were used as coupling agents and the mechanic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf1f1af8e932d314cdeaf4d9b0d91836
https://doi.org/10.1016/j.carbpol.2008.01.026
https://doi.org/10.1016/j.carbpol.2008.01.026
Autor:
A.A.S. Curvelo, Fabiola Vilaseca, A.J.F de Carvalho, Jordi Girones, Pere Mutjé, Maria Teresa Borges Pimenta
Publikováno v:
Carbohydrate Polymers. 68:537-543
In this work, the stability of blocked isocyanates has been evaluated and the reactivity of different urethanes with the hydroxyl groups of natural cellulose fibres has been studied during the preparation of composites. The thermal dissociation of ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ef8badecc3dbe926ed55616c747f1c1
https://doi.org/10.1016/j.carbpol.2006.10.020
https://doi.org/10.1016/j.carbpol.2006.10.020
Investigation of Sisal Fibers by Atomic Force Microscopy: Morphological and Adhesive Characteristics
Autor:
Fabio L. Leite, A.A.S. Curvelo, Paulo S. P. Herrmann, Fabio Cop Ferreira, A. L. Da Roz, Luiz H. C. Mattoso
Publikováno v:
Journal of Nanoscience and Nanotechnology. 6:2354-2361
Atomic force microscopy (AFM) was used to study the nanoscale surface chemistry and morphological changes caused by chemical treatment of sisal fibers. Scanning Electron Microscopy (SEM) micrographs indicated that sisal in natura (bundle of fibers) i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8dfe7849fa054b9828ff4ee3e128eb
https://doi.org/10.1166/jnn.2006.522
https://doi.org/10.1166/jnn.2006.522
Publikováno v:
Carbohydrate Polymers. 62:387-390
The melt processing of glycerol-plasticized starch in the presence of non-volatile carboxylic acids resulted in a progressive loss of its molar mass, because the residual moisture in the mixture induced an acid-catalyzed hydrolysis of the ether linka
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ce11949a01983837efb052bc89ac3df
https://doi.org/10.1016/j.carbpol.2005.08.025
https://doi.org/10.1016/j.carbpol.2005.08.025
Publikováno v:
Carbohydrate Polymers. 62:104-112
Blends of cornstarch, glycerol and lignosulfonate were prepared in variable-speed batch mixer at 150–160 °C, with the glycerol in various proportions from 20 to 40% and lignosulfonate from 10 to 40%. Alterations in HPSEC chromatogram profiles afte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f643992367cdbb55e5b12c3a4be32c9
https://doi.org/10.1016/j.carbpol.2005.03.016
https://doi.org/10.1016/j.carbpol.2005.03.016
Publikováno v:
Polymer Degradation and Stability. 79:133-138
Thermoplastic starch (TPS) compounds of conventional cornstarch and glycerol reinforced with cellulosic fibres were characterized by high performance size exclusion chromatography. The molecular weight and its distribution were analysed to verify the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d93460b476f658e8882455599fd28cf
https://doi.org/10.1016/s0141-3910(02)00265-3
https://doi.org/10.1016/s0141-3910(02)00265-3
Publikováno v:
International Journal of Polymeric Materials. 51:647-660
Thermoplastic starch is potentially a low cost alternative biodegradable plastic that is readily available material, but owing to its poor mechanical properties and high susceptibility to water, its actual replacement of the polymers currently in use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e70d17af4a8f957559051d0fedddd00e
https://doi.org/10.1080/714975803
https://doi.org/10.1080/714975803