Sifat Kekuatan Pulp dari Campuran Pulp Daur Ulang dengan Pulp Kulit Buah Durian
Wistara, I Nyoman J
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Durio Rind Pulp (DRP) cooking with soda, obtained from AA 20%, L/W 4:1, T 170oC for 4 hours without bleached. SWL give heat treatment in printer, feed five times, T 160oC then repulping. DRP and SWL mixed, the composition (w/w) 100/0, 75/25, 50/50, 25/75, and 0/100 with 3 different freeness, 300 CSF, 200 CSF, and 100 CSF. Dimensions and derivatives values DR all of which occupy fiber quality class II except felting power quality class III. While SWL occupies quality class III. Levels solubility of ethanol benzene, holocellulose, lignin, and α cellulose DR is 23%, 65.39 - 67.28%, 16.34 - 18.17%, 41.16 - 42.38%. While the level of solubility NaOH 1% of fiber DR > DRP 300 CSF > DRP 200 CSF > SWL. The mechanical properties of the sheets pulp mixture decreased with increasing composition of DRP. It is thought to because the DRP had higher levels of low weight polysaccharides and cellulose degradation is high. While the mechanical properties of SWL can be improved by beating.
- UT - Forest Products