RT Journal Article T1 Polymeric Branched Flocculant Effect on the Flocculation Process of Pulp Suspensions in the Papermaking Industry A1 Blanco Suárez, María Ángeles A1 Fuente González, Elena De La A1 Monte Lara, María Concepción A1 Cortés, Noelia A1 Negro Álvarez, Carlos Manuel AB This paper presents the effect of the structure of cationic polyacrylamides (CPAMs) on flocculation of pulpsuspensions and floc properties. A focused beam reflectance measurement (FBRM) probe was used to monitor flocculation, deflocculation, and reflocculation processes in real time. To carry out the study, 1% elemental chlorine free (ECF) eucalyptus kraft pulp containing 20% ground calcium carbonate (GCC) was used. Results show that the effect of the CPAM structure depends on charge density and polymer dose. Floc size does not always decrease with branching degree, whereas floc stability and reflocculation ability increased when highlycharged and branched CPAM was used. These findings indicate that the use of highly branched CPAMs with very high molecular weight is very promising as a retention aid method to improve the papermaking process. SN 1520-5045 YR 2009 FD 2009 LK https://hdl.handle.net/20.500.14352/41866 UL https://hdl.handle.net/20.500.14352/41866 LA eng NO Blanco, Ángeles, et al. «Polymeric Branched Flocculant Effect on the Flocculation Process of Pulp Suspensions in the Papermaking Industry». Industrial & Engineering Chemistry Research, vol. 48, n.o 10, mayo de 2009, pp. 4826-36. DOI.org (Crossref), https://doi.org/10.1021/ie8011837. NO “This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial & Engineering Chemistry Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/ie8011837" NO Comunidad de Madrid NO European Commission DS Docta Complutense RD 23 jul 2024