Campo DC | Valor | Idioma |
dc.contributor.author | Cerqueira, Daniel Alves | - |
dc.contributor.author | Nascimento, Bárbara | - |
dc.contributor.author | Rodrigues Filho, Guimes | - |
dc.contributor.author | Frigoni, Elaine Selaro | - |
dc.contributor.author | Soares, Heline Mendes | - |
dc.contributor.author | Meireles, Carla da Silva | - |
dc.contributor.author | Cerqueira, Daniel Alves | - |
dc.contributor.author | Valente, Artur José Monteiro | - |
dc.creator | Cerqueira, Daniel Alves | - |
dc.creator | Nascimento, Bárbara | - |
dc.creator | Rodrigues Filho, Guimes | - |
dc.creator | Frigoni, Elaine Selaro | - |
dc.creator | Soares, Heline Mendes | - |
dc.creator | Meireles, Carla da Silva | - |
dc.creator | Cerqueira, Daniel Alves | - |
dc.creator | Valente, Artur José Monteiro | - |
dc.date.accessioned | 2014-08-13T17:44:43Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0021-8995 | - |
dc.identifier.uri | http://repositorio.ufba.br/ri/handle/ri/15614 | - |
dc.description | Texto completo: acesso restrito. p. 510–517 | pt_BR |
dc.description.abstract | In this study, cellulose sulfoacetate (CSA) was produced with cellulose extracted from sugarcane bagasse with sulfuric acid as a catalyst under homogenous conditions so that the derivative could be applied as an additive for mortar of Portland (Cimento Portland de alta resistência inicial, CPV-ARI) cement. The IR spectra showed that only precipitate C presented the characteristic band of sulfate groups (807 cm−1) and was, therefore, the sulfoacetylated derivative. CSA presented a degree of acetylation of 2.70 and a degree of sulfonation of 0.063, and the presence of sulfate groups in the derivative displaced the position of C(6) to a lower field in the 13C-NMR spectrum and influenced reduced viscosity as a function of concentration. The evaluation of CSA as an additive showed that for a polymer/cement ratio of 0.6%, an increase of 13.80% was achieved consistently, and an increase of 21.05% in the potential tensile of adhesion strength was also achieved. | pt_BR |
dc.language.iso | en | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.source | http://dx.doi.org/ 10.1002/app.34881 | pt_BR |
dc.subject | Additives | pt_BR |
dc.subject | Biodegradable | pt_BR |
dc.subject | Water-soluble polymers | pt_BR |
dc.title | Application of cellulose sulfoacetate obtained from sugarcane bagasse as an additive in mortars | pt_BR |
dc.title.alternative | Journal of Applied Polymer Science | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 124, n. 1 | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (ICADS)
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