Pembuatan Membran Selulosa Asetat Dari Serat Buah Kapuk Randu

Wilis Tanu Murti; Tubagus Rafli Akhdan Kusuma; Nurul Widji Triana

Authors

Wilis Tanu Murti Universitas Pembangunan Nasional “Veteran” Jawa Timur Author
Tubagus Rafli Akhdan Kusuma Universitas Pembangunan Nasional “Veteran” Jawa Timur Author
Nurul Widji Triana Universitas Pembangunan Nasional “Veteran” Jawa Timur Author

Keywords:

Serat Kapuk, Ekstraksi Selulosa, Selulosa Asetat, Membran, Inversi Fasa

Abstract

The aim of this study is to extract cellulose from kapok fibre and develop an environmentally friendly cellulose acetate-based membrane for use in separation applications. The fabrication process involved delignification, bleaching, acetylation and casting the membrane using the phase inversion method. Fourier-transform infrared spectroscopy (FTIR) analysis revealed the presence of carbonyl (C=O) and ester (O–H stretching) groups, indicating the successful synthesis of cellulose acetate. Morphological analysis using SEM showed a homogeneous, asymmetric pore structure, demonstrating the membrane's suitability for separation applications. Contact angle measurements revealed the highest value at cycle 3, with a 65% acetone concentration and an acetyl content of 41.35%. This suggests a correlation between acetyl content and membrane hydrophobicity. These findings highlight the potential of kapok fibre as a valuable alternative source of cellulose. Furthermore, the developed membrane exhibits promising properties for sustainable, eco-friendly, membrane-based separation technologies. Overall, using kapok fibre adds value to agricultural waste and supports green innovation in developing materials for environmental applications.

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