TY  - SER
AU  - Wahyudi,Ferdian Alam
AU  - Nazhad,Mousa M.
AU  - Basta,Jiri
AU  - Lehtinen,Esa
ED  - Asia Pacific Holding Ltd. (APRIL) Indonesia,
TI  - Optimizing filler retention of mixed tropical hardwood based uncoated fine paper
T2  - Thesis
PY  - 2011///
CY  - Pathum Thani, Thailand
PB  - Asian Institute of Technology
KW  - Hardwoods
KW  - Indonesia
KW  - Paper
KW  - Quality
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Pulp and Paper Technology, School of Environment, Resources & Development; Thesis (M. Eng.) - Asian Institute of Technology, 2011
N2  - The objectives of this study  was to evaluate the  effects of different  filler  loading method,  variation  retention  aid  dosage  and  different  structure  of  CPAM  on furnish  retention  and drainage, with the aim of finding an effective process to improve filler share in fine paper without  loss  in strength.  Mixed  tropical  hardwood  pulp  from  Sumateran  forest,  blending  PCC {u2013} GCC filler and broke from APRIL were used as the main furnish components of the  handsheet. It  was  observed  that  pre - flocculation of  fillers  wisth  c ationic  starch  or  CPAM  resulted  in  higher  strength,  but  retarded  drainage  and  slightly  detiorated  the  formation.  The  retention  was slightly low compare to conventional filler addition method. It was also observed that  addition  of  two  cationic  polyelectrolytes  for  bringing  the  system  zeta  potential  to  the  iso  electric  point  is  not  required. In  addition,  a  single  cationic  polyelectrolytes  could  indeed  do the job. The  effects  of  microparticles and  Nanoparticles on  retention  system  were  also  evaluated.  Nanoparticles system had strong  positive effects  on drainage and  retention, but detiorated  formation,  strength  and  optical  properties.  In  contrast,  microparticles system  had  ability  develop  better  formation,  strength  and  optical  properties,  but  lower  on  drainage  and  retention. The  morphological structure  differences  of  CPAM  were  also  examine.  It  was  observed  with that linear or dispersion polymer had no effect on polymer absorption potential. Long  and linear  CPAM polymer increase drainage  as well as retention.  The structured dispersion  polymer, however, showed higher strength. In addition, the overall  effects of CPAM either  linear or structured on formation were negative
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B20547
ER  -