Analis Sifat Fisik Kertas Campuran Daur Ulang dari Kertas Kraft Bekas Kantong Semen dan Kertas Batang Kelapa Sawit

Zainal Abidin Nasution

Jurnal Riset Teknologi Industri
Vol 3 No 5 Juni 2009

The result of research  accomplished  showed  that the stem of palm oil plant  is able to made as pulp.  Choice the caustic process  cooking  was based on easy to do an a low costoperation.  The process  has two step activities.  The stem of palm oil plant as raw material have been degraded  by micro organism.  The first step  the  cooking  was done  at the  open  atmosfer   with  concentration   of the cooking  solution  1.50 % NaOH and 2 hours duration  with yield product of 78 %. The second step of the cooking  was  made at the boiler and 3atsms operation pressure   approximate   temperature    1400 C).  The  concentration   of  cooking solution  5 % NaOH and 4 hours cooking   duration  with yield product  of 72.5%. Total yield of pulp from cooking stem of palm oil plant approximate  57,5%. The sample  of paper mixture  that have percentage   at dry weight composition  40% paper  of kraft  waste  sack of cement  and  60% stem  of palm  oil plant  to give tensile  index  maximal  0,0153  kN   m/gr and tearing  index  21.6949 mN   m2/gr compare  with minimum   value  tensile  index  and  tearing  index  from  SNI.  14-1308 1998.