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      Karakteristik Permukaan Serat Batang Pisang dengan Perlakuan Delignifikasi

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      Date
      2023
      Author
      Nabila, Janisca Izmi
      Nikmatin, Siti
      Syafutra, Heriyanto
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      Abstract
      Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan delignifikasi dengan variasi larutan pemasak terhadap komposisi kimia serat batang pisang serta mengetahui perubahan sifat permukaan serat batang pisang. Pengujian komposisi kimia menggunakan metode TAPPI menunjukkan serat batang pisang delignifikasi NaOH konsentrasi 10% adalah sampel dengan komposisi kimia terbaik. Hal ini ditunjukkan dengan adanya penurunan kadar lignin sebesar 51,88% dan peningkatan kadar alfa selulosa sebesar 36,36% dari serat perlakuan kontrol. Hasil pengujian TAPPI linear dengan citra FTIR pada sampel delignifikasi NaOH konsentrasi 10%. Pengujian Surface Free Energy (SFE) tertinggi ditunjukkan pada sampel delignifikasi NaOH konsentrasi 10%. Peningkatan nilai SFE pada sampel tersebut menunjukkan adanya penurunan sifat hidrofobisitas pada permukaan serat. Nilai interfacial energy saat serat batang pisang berinteraksi dengan air lebih besar karena adanya readsorpsi air. Nilai adhesive energy serat batang pisang yang tinggi menyebabkan komponen zat cair menyerap pada permukaan sampel secara alami.
       
      This study aims to determine the effect of the delignification treatment using various solutions on the chemical composition of banana stem fiber and to determine changes in the surface properties of banana stem fiber. Results of TAPPI method test showed that the 10% concentration of NaOH solution produced the best chemical composition, this was indicated by a decrease in lignin content by 51,88% and an increase in alpha cellulose content by 36,36% compared to the control fiber. TAPPI test results were linear with FTIR analysis on 10% concentration of NaOH delignification sample. The highest Surface Free Energy (SFE) value was found in sample with the best chemical composition. An increase in the SFE value indicated a decrease in the hydrophobicity of the fiber surface. The value of the interfacial energy when the samples interacts with water are greater because of water readsorption. The high adhesive energy value of the samples causes the liquid component to adsorb on the surface of the samples naturally.
       
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      http://repository.ipb.ac.id/handle/123456789/123053
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      • UT - Physics [1230]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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