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Title: | Sintesis dan Karakterisasi Viskosa Berbahan Serat TKKS sebagai Material Semikonduktor |
Other Titles: | Synthesis and Characterization of Viscose Made from OPEFB Fiber as a Semiconductor Material |
Authors: | Nikmatin, Siti Adiati, Rima Fitria Shofura, Syifa Karina |
Issue Date: | 2023 |
Publisher: | IPB University |
Abstract: | Viskosa merupakan serat semi sintetis yang berasal dari proses regenerasi
selulosa. Dalam penelitian ini, kandungan alfa selulosa TKKS yang tinggi diolah
sebagai bahan baku dissolving pulp. Pembuatan pulp dilakukan menggunakan
metode prahidrolisis kraft dengan variasi konsentrasi alkali aktif pada tahap
pemasakan yaitu 15%, 20%, dan 25%, selanjutnya pulp diolah menjadi alkali
selulosa kemudian dibentuk menjadi viskosa bersifat selulosa xantat. Penelitian ini
bertujuan untuk mengetahui konsentrasi alkali aktif terbaik pada tahap pemasakan
yang dapat menghasilkan pulp dan viskosa optimum. Pengujian yang dilakukan
berupa pengujian kimia dissolving pulp, pengujian sifat listrik dengan LCR meter
dan pengujian sifat permukaan dengan perhitungan energi bebas permukaan (SFE)
viskosa. Hasil penelitian menunjukkan konsentrasi alkali aktif 25% menghasilkan
pulp terbaik sesuai dengan SNI 938:2017. Konduktivitas listrik dan resistivitas yang
dihasilkan dari ketiga sampel viskosa menunjukkan material yang bersifat
semikonduktor. Variasi cairan uji SFE dengan air dan FFA memberikan sifat
hidrofilik pada permukaan viskosa TKKS. Viscose is a semi-synthetic fiber obtained from a cellulose regeneration process. In this study, OPEFB which has a high alpha cellulose content, was processed as a raw material for dissolving pulp. The pre-hydrolysis kraft method is used to produce pulp with varying concentrations of active alkali used during the cooking stage are 15%, 20%, and 25%, which is subsequently processed into alkaline cellulose and converted into viscose with cellulose xanthate properties. The objective of this study is to determine the best concentration of active alkali in the cooking stage that can produce optimal pulp and viscose. The tests were carried out in the chemical testing of dissolving pulp, testing the electrical properties with an LCR meter and testing the surface properties by calculating the surface free energy (SFE) of OPEFB viscose. The results showed that the 25% active alkali concentration produced the best pulp according to SNI 938:2017. The electrical conductivity and resistivity of the three viscose samples show that the material is semiconducting. Variation of the SFE test liquid with water and FFA gave hydrophilic properties on the OPEFB viscose surface. |
URI: | http://repository.ipb.ac.id/handle/123456789/124020 |
Appears in Collections: | UT - Physics |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cover_Syifa Karina Shofura (G74190054).pdf Restricted Access | Cover | 775.48 kB | Adobe PDF | View/Open |
G74190054_Syifa Karina Shofura.pdf Restricted Access | Fullteks | 1.11 MB | Adobe PDF | View/Open |
Lampiran_Syifa Karina Shofura (G74190054).pdf Restricted Access | Lampiran | 650.23 kB | Adobe PDF | View/Open |
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