Skripsi

STUDI KOMPARASI KUALITAS UNBLEACHED PULP ANTARA KAYU EUCALYPTUS BRASSIANA DAN EUCALYPTUS PELLITA

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Penilaian

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Eucalyptus wood is a grow fast plant and used as a raw material for pulp. Eucalyptus wood has various types, one of which is Eucalyptus brassiana and Eucalyptus pellita. This study aims to determine the differences in the chemical properties of wood and unbleached pulp, as well as the quality of pulp based on active alkali charge 16%, 17%, 18% and the differences in the physical properties of unbleached pulp sheets. Testing was carried out by cooking the kraft method using an active chemical solution consisting of natrium hydroxide and sodium sulfide as a cooking liquid at high temperatures. The results of the analysis of the chemical properties of wood obtained lignin, cellulose, hemicellulose and extractive content in Eucalyptus pellita of 31,59%; 47,98%; 14,55%; 0,31%, respectively. While in Eucalyptus brassiana it was 26,39%; 46,99%; 18,49%; 0,15%. Based on kappa number the highest cellulose for unbleached pulp was obtained in Eucalyptus pellita pulp of 94,88% compared to Eucalyptus brassiana of 85,77%. Variation of active alkali charge 16%, 17%, 18% on the quality of unbleached pulp based on kappa number, yield, viscosity obtained Eucalyptus pellita is higher, while the highest brightness was obtained in Eucalyptus brassiana. The results of the physical properties of the pulp sheet against breaking length, tensile index, tearing index, bursting index and folding endurance were obtained the highest in Eucalyptus Pellita. Keywords : Eucalyptus, chemical properties of wood, active alkali charge, quality of unbleached pulp

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2507002953	T173781	T1737812025	Central Library (Reference)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T1737812025

Publisher

Indralaya : Prodi Ilmu Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sriwijaya., 2025

Collation

xvi, 97 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

540.07

Content Type

Text

Media Type

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Carrier Type

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Edition

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Subject(s)

Kimia

Specific Detail Info

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Statement of Responsibility

MI

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