Analisis Hubungan Konsentrasi Asam saat Hidrolisis, Derajat Kristalinitas dan Sifat Mekanis Selulosa Kristalin dari Serbuk Gergaji Kayu
DOI:
https://doi.org/10.26418/pf.v4i2.15850Abstract
Telah dilakukan penelitian untuk mengetahui sifat mekanis selulosa kristalin dari campuran serbuk gergaji kayu keras melalui proses hidrolisis menggunakan asam klorida. Tahap ekstraksi menggunakan larutan alkohol-benzena dengan perbandingan 1:2 dilanjutkan pelarutan dengan menggunakan NaOH dan Na2S, tahap bleaching menggunakan larutan hipoklorit 30% dan tahap hidrolisis asam menggunakan larutan HCl 37% dengan variasi konsentrasi HCl yaitu 2,5 ml/g, 8,75 ml/g dan 17,5 ml/g. Variasi konsentrasi asam dapat mempengaruhi derajat kristalin selulosa serbuk gergaji kayu dan derajat kristalinitas mempengaruhi sifat mekanis selulosa kristalin yang dihasilkan yakni semakin tinggi derajat kristalinitas maka kekuatan tarik, kekuatan putus dan modulus elastisitas juga semakin tinggi. Penelitian yang dilakukan menghasilkan derajat kristalinitas terendah pada konsentrasi 17,5 ml/g dan diindikasikan sebagai konsentrasi kritis sehingga menyebabkan selulosa bersifat anisotropis, sedangkan konsentrasi HCl 8,75 ml/g merupakan konsentrasi optimum yang menghasilkan derajat kristalinitas 74%, kekuatan tarik 20,1 kPa, kekuatan putus 17,6 kPa dan modulus elastisitas 1335 kPa.
Kata Kunci : Selulosa kristalin, Hidrolisis asam, Kekuatan putus, kekuatan tarik, Modulus elastisitas
References
Biro Perencanaan, Sekretariat Jendral. Statistik Kementerian Kehutanan 2013 Bagian Data dan informasi. Jakarta: Kementerian Kehutanan.2014
Idris MM, Rachman O, Pasaribu AR, Rolidi H, Hadjib N, Muslich M, Jasni, Rulliaty S, Siagian MR. Petunjuk Praktis Sifat-Sifat Dasar Jenis Kayu (A Handbook of Selected Indonesia Wood Spesies) Indonesia: Indonesia Sawmill and woodworking Assocation (ISWA). 2008
Prasetya AH. Arang Aktif Serbuk Gergaji Sebagai Bahan Pengisi untuk Pembuatan Kompon Ban Luar Kendaraan Bermotor. Jurnal Riset Industri; 6(2): p. 165-173.
Rodiansono U, Baroroh LU, Nana W. Hidrolisis Lignoselulosa dari Tandan Kosong Kelapa Sawit menggunakan Katalis Asam Karboksilat. Sains dan Terapan Kimia; 7(1): p. 60-72.
Beck SC, Maren R, Derek GG. Effect of Reaction Conditions on the Properties and Behavior of Wood Cellulose Nanocrystal Suspensions. Biomacromolecules; 6(2): p. 1048-1054.
Arini AN, Malino BM, Wahyuni D. Analisis Pengaruh Waktu HIdrolisis terhadap Sifat Mekanis Selulosa Kristalin dari Campuran Serbuk Gergaji Kayu Belian, Bengkirai, Jati dan Meranti. Positron; 5(2): p. 70-73.
Lestari S. Analisis Sifat Mekanis dan Viskositas Mooney. Skripsi. Pontianak: FMIPA UNTAN.
Nurbayani A, Budiman A, Ahmad M. Waktu Optimasi Isolasi Nanokristalin Selulosa Bakterial dari Limbah Kulit Nanas. Jurnal Sains dan Teknologi Kimia; 5(1): p. 75-84.
Jimmy. Analisis Morfologi dan Kristalinitas Selulosa Kristalin dari Serbuk Gergaji Kayu Belian (Eusideroxylon Zwageri). Skripsi. Pontianak: FMIPA UNTAN.
Kakani SL, Amit K. Material Science New Delhi: New Age International (P).2004
Louer D, J PA. A Precise Determination of the Shape, Size and Distribution of Size of Crystallites in Zinc Oxide by X-Ray Line-Broadening Analysis. J.Appl.Cryst; 16: p. 183-191.
Downloads
Published
Issue
Section
License
Copyright Notice using Creative Commons License for an Online Journal
The online journal Prisma Fisika operates under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). This copyright notice serves to inform authors, readers, and users of the terms and conditions regarding the use and distribution of the journal's content. By submitting or accessing the content, you agree to the following:
1. Content License:
a. All articles, images, and supplementary materials published in Prisma Fisika are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
b. This license permits users to copy, distribute, and adapt the content for non-commercial purposes, provided appropriate credit is given to the original authors and the journal.
c. If you remix, transform, or build upon the content, you must distribute your contributions under the same license as the original.
2. Attribution:
a. When using or sharing content from Prisma Fisika, you must properly attribute the original authors and the journal.
b. Include the title of the article, the names of all authors, Prisma Fisika, the year of publication, the volume/issue number, and the specific page numbers.
c. Provide a hyperlink to the original article on Prisma Fisika's website, if applicable.
3. Non-Commercial Use:
a. The content published in Prisma Fisika may not be used for commercial purposes without obtaining explicit permission from the copyright holders.
b. Commercial use includes, but is not limited to, reproduction or distribution of the content for financial gain, selling or licensing the content, or using the content in products or services that are sold or monetized.
4. ShareAlike:
a. If you adapt or remix the content from Prisma Fisika, you must distribute your derivative work under the same Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
b. This provision ensures that any modifications, adaptations, or remixes of the content maintain the same open licensing framework.
5. Disclaimer:
a. The views expressed in articles published in Prisma Fisika are solely those of the authors and do not necessarily reflect the opinions or policies of the journal, its editorial board, or affiliated institutions.
b. Prisma Fisika and its editors are not liable for any errors, omissions, or damages arising from the use or interpretation of the published content.
Please note that this Copyright Notice does not supersede any additional permissions or restrictions that may be granted by individual authors or copyright holders for their specific content within Prisma Fisika. For any questions or requests regarding the use of the journal's content, please contact the editorial team at prismafisika@physics.untan.ac.id.
By accessing or contributing to Prisma Fisika, you agree to comply with the terms of this Creative Commons license. Violation of these terms may result in legal consequences as governed by applicable copyright laws.
Date: 24-05-2023
Prisma Fisika
Email: prismafisika@physics.untan.ac.id
