Application of cellulose sulfoacetate obtained from sugarcane bagasse as an additive in mortars

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)...

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Bibliographic Details
Published in:	Journal of applied polymer science Vol. 124; no. 1; pp. 510 - 517
Main Authors:	Nascimento, Bárbara, Filho, Guimes Rodrigues, Frigoni, Elaine Selaro, Soares, Heline Mendes, da Silva Meireles, Carla, Cerqueira, Daniel Alves, Valente, Artur José Monteiro, de Albuquerque Carvalho, Rui, de Assunção, Rosana Maria Nascimento, de Castro Motta, Leila Aparecida
Format:	Journal Article
Language:	English
Published:	Hoboken Wiley Subscription Services, Inc., A Wiley Company 05-04-2012 Wiley Wiley Subscription Services, Inc
Subjects:	Additives Application fields Applied sciences Bagasse biodegradable Catalysts Cellulose Cements Derivatives Exact sciences and technology Materials science Mortars Polymer industry, paints, wood Polymers Sulfates Technology of polymers water-soluble polymers Adhesivity biodegradable Plant fiber Mechanical properties Cellulose mixed ester Experimental study Tensile strength Sugar cane(by product) Resin modified mortar Additive additives Bagasse Natural fiber Cellulose derivatives Surface properties Sulfonation Property structure relationship water-soluble polymers Rheological properties
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Summary:	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. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Bibliography:	CNPq through Projeto Casadinho, Universidade Federal de Uberlândia/ Universidade Federal do Goiás/Universidade Federal do Mato Grosso - No. 620181/2006-0 FAPEMIG - No. EDT-88/07 and PCE-00428-09 ark:/67375/WNG-JH6HWK30-N istex:A61ED4F2191F7EE0440C0A6DCE7E41F57D5F0513 ArticleID:APP34881 CAPES ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.34881