Pengaruh Perlakuan Kimia Pada Permukaan Serat Dan Fraksi Volume Filler (Vf) Terhadap Sifat Fisis, Mekanik, Dan Morfologi Pada Komposit Unidirectional Continuous Fiber

Larasati, Pramita Dhealia (2021) Pengaruh Perlakuan Kimia Pada Permukaan Serat Dan Fraksi Volume Filler (Vf) Terhadap Sifat Fisis, Mekanik, Dan Morfologi Pada Komposit Unidirectional Continuous Fiber. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk membuat komposit dengan pengaruh perlakuan kimia yaitu NaOH (natrium hidroksida) dan CH3COOH (asam asetat) dengan variasi konsentrasi 0,5% NaOH dan 34,44, dan 51% CH3COOH terhadap sifat mekanik serat pisang abaka. Metode perlakuan kimia dipilih karena prosesnya sederhana dengan cara melakukan perendaman serat. Bahan yang digunakan saat proses perendaman yaitu larutan NaOH dan larutan CH3COOH yang dilarutkan dengan aquades. Komposit ini menggunakan bahan-bahan campuran semi logam dan polimer. Bahan-bahan semi logam dan polimer tersebut sebagai matrik (pengikat), sedangan serat pisang abaka sebagai filler (pengisi) pada komposit. Dilakukan lima analisa diantaranya analisa sifat fisis, sifat mekanik, ikatan antar muka, karakterisasi FTIR, dan morfologi pada serat, matrik, dan komposit. Hasil dari sifat fisis didapatkan bahwa semakin bertambahnya konsentrasi CH3COOH maka densitas serat dan komposit semakin berkurang. Hasil dari sifat mekanik yaitu dihasilkan kekuatan paling baik untuk komposit longitudinal pada konsentrasi 34% CH3COOH, sedangkan untuk komposit transveral kekuatan paling baik pada konsentrasi 51% CH3COOH. Lalu untuk hasil ikatan antar muka yang baik pada komposit dapat diprediksi menggunakan persamaan kurva Halpin-Tsai, karena dapat menunjukkan geometri serat yang sangat berpengaruh terhadap perilaku mikromekanik komposit. Selanjutnya hasil dari FTIR menunjukkan intensitas yang paling baik sekaligus hasil morfologinya terlihat bahwa unsur Carbon tersebar secara merata pada komposit dengan konsentrasi 34% CH3COOH. ======================================================================================================= This research aims to make composites with the effect of chemical treatment, namely NaOH (sodium hydroxide) and CH3COOH (acetic acid) with varying concentrations of 0.5% NaOH and 34, 44, and 51% CH3COOH on the mechanical properties of abaca banana fibers. The treatment method was chosen because the process is simple by soaking the fibers. The materials used during the immersion process are NaOH solution and CH3COOH solution dissolved with aquadest. This composite uses a mixture of semi-metallic materials and polymers. The semi-metallic and polymeric materials are used as a matrix, while the abaca banana fiber is used as a filler in the composite. Performed five analyzes including analysis of physical properties, mechanical properties, interfaces, FTIR characterization, and morphology on fibers, matrix, and composites. The results of the physical properties obtained that the increasing concentration of CH3COOH the fiber density and decreases. The result of mechanical properties is that the strength produced is the best for longitudinal composites at a concentration of 34% CH3COOH, while for transverse composites the best strength is at a concentration of 51% CH3COOH. Then for a good interface result on the composite can be predicted using the Halpin-Tsai curve equation, because it can show the geometry of the fiber which is very influential on the micromechanical behavior of the composite. Furthermore, the results of the FTIR showed the best intensity as well as the morphological results showed that it was not evenly distributed in the composite with a concentration of 34% CH3COOH.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Serat pisang abaka, NaOH, CH3COOH, bahan semi logam.
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC111 Density and specific gravity
Q Science > QC Physics > QC173.4.C63 Composite materials
Q Science > QD Chemistry > QD320 Cellulose. Hydrolysis
Q Science > QD Chemistry > QD471 Chemical compounds - Structure and formulas
Q Science > QD Chemistry > QD75.2 Chemistry, Analytic
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45101-(S2) Master Thesis
Depositing User: PRAMITA DHEALIA LARASATI
Date Deposited: 22 Aug 2021 06:38
Last Modified: 22 Aug 2021 06:38
URI: https://repository.its.ac.id/id/eprint/88242

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