Synthesis and application of methylcellulose extracted from waste newspaper in CPV-ARI Portland cement mortars

Cellulose extracted from waste newspaper was methylated using dimethylsulfate to produce methylcellulose with degree of substitution of 1.46 ± 0.06. This material was characterized by FTIR and DSC. An aqueous dispersion of methylcellulose was used to produce mortars of Portland cement (CPV-ARI). The...

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Bibliographic Details
Published in:	Journal of applied polymer science Vol. 118; no. 3; pp. 1380 - 1385
Main Authors:	de Carvalho Oliveira, Geandre, Filho, Guimes Rodrigues, Vieira, Júlia Graciele, De Assunção, Rosana M. Nascimento, da Silva Meireles, Carla, Cerqueira, Daniel Alves, de Oliveira, Reginaldo João, Silva, Wanderly Geraldo, de Castro Motta, Leila Aparecida
Format:	Journal Article
Language:	English
Published:	Hoboken Wiley Subscription Services, Inc., A Wiley Company 05-11-2010 Wiley
Subjects:	additives Admixtures for concrete, mortar and grouts Applied sciences biodegradable Buildings. Public works Cellulose and derivatives Concretes. Mortars. Grouts Exact sciences and technology Homogeneity Materials Mortars Natural polymers Physicochemistry of polymers Portland cements recycling renewable resources Reproduction Viscosity Wastes water-soluble polymers Workability biodegradable Molecular structure Cellulose Paper waste Newsprint Delignification Cellulose(methyl) Cement mortar Surface properties Adjuvant Recycled material Cellulose ether Adhesivity renewable resources Mechanical properties recycling Tensile property Experimental study Portland cement Chemical modification additives Preparation Cellulose derivatives water-soluble polymers Methylation
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Summary:	Cellulose extracted from waste newspaper was methylated using dimethylsulfate to produce methylcellulose with degree of substitution of 1.46 ± 0.06. This material was characterized by FTIR and DSC. An aqueous dispersion of methylcellulose was used to produce mortars of Portland cement (CPV-ARI). The results showed an increase on the consistency index with the production of a system that presented good workability, homogeneity, and high viscosity, which was corroborated by the tacky aspect of the produced mixture. Hardened mortar presented an increase in the potential resistance to traction adherence when compared to the reference mortar. Those characteristics indicate that this material could be used in situations that need good workability, increasing on viscosity and adhesive properties, such as in tile installation, covering, and finishing.
Bibliography:	http://dx.doi.org/10.1002/app.32477 istex:0ECEE7879196EE95979EA1BD62DDC1FBF5196086 FAPEMIG - No. 620181/2006-0; No. EDT-88/07 CNPq ArticleID:APP32477 CAPES ark:/67375/WNG-3WB22CJG-C ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0021-8995 1097-4628 1097-4628
DOI:	10.1002/app.32477