Analisis Dan Karakterisasi Sifat Mekanik Biokomposit Poly(Vinyl Alcohol)/Serbuk Kayu Gemor Kalimantan Untuk Aplikasi Bioresin Adhesive Waterbased

Hatami, Muhammad Farqi (2026) Analisis Dan Karakterisasi Sifat Mekanik Biokomposit Poly(Vinyl Alcohol)/Serbuk Kayu Gemor Kalimantan Untuk Aplikasi Bioresin Adhesive Waterbased. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Isu keberlanjutan dan meningkatnya kebutuhan material ramah lingkungan mendorong pengembangan biokomposit berbasis sumber daya alam. Penelitian ini bertujuan untuk memformulasikan dan mengkarakterisasi sifat mekanik biokomposit berbasis Poly(Vinyl Alcohol) (PVA) sebagai matriks dan serbuk kayu gemor Kalimantan sebagai filler untuk aplikasi bioresin adhesive berbasis air. Serbuk kayu gemor dipilih karena kandungan lignoselulosanya yang berpotensi meningkatkan kekuatan mekanik, sementara PVA dikenal memiliki sifat adhesi dan fleksibilitas yang baik. Metodologi penelitian meliputi pembuatan larutan PVA berbasis akuades yang dicampurkan dengan variasi rasio PVA dan serbuk kayu gemor, yaitu 65:35, 60:40, 55:45, 50:50, dan 45:55. Campuran kemudian dicetak menjadi spesimen dan dievaluasi melalui pengamatan visual serta pengujian sifat mekanik berupa uji kekerasan dan uji tekan. Hasil pengamatan visual menunjukkan bahwa spesimen dengan komposisi PVA/serbuk kayu 55% memiliki struktur paling kompak dan homogen. Pengujian hardness test menunjukkan nilai tertinggi pada komposisi PVA/serbuk kayu 55% sebesar 52 Shore D dan nilai terendah pada komposisi 35% sebesar 25 Shore D. Hasil uji tekan juga menunjukkan tren serupa, dengan kekuatan tekan tertinggi sebesar 131,42 MPa pada komposisi 55% dan terendah sebesar 45,41 MPa pada komposisi 35%. Hasil ini mengindikasikan bahwa peningkatan fraksi filler serbuk kayu berpengaruh signifikan terhadap peningkatan sifat visual dan mekanik biokomposit PVA/serbuk kayu. Penelitian ini diharapkan dapat mendukung pengembangan perekat berbasis air yang ramah lingkungan dengan performa mekanik yang kompetitif untuk aplikasi industri.
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Sustainability issues and the growing demand for environmentally friendly materials have driven the development of biocomposites based on natural resources. This study aims to formulate and characterize the mechanical properties of biocomposites based on poly(vinyl alcohol) (PVA) as the matrix and Kalimantan gemor wood powder as the filler for water-based bioresin adhesive applications. Gemor wood powder was selected due to its lignocellulosic content, which has the potential to enhance mechanical strength, while PVA is known for its good adhesive properties and flexibility. The research methodology involved the preparation of an aqueous PVA solution mixed with varying ratios of PVA and gemor wood powder, namely 65:35, 60:40, 55:45, 50:50, and 45:55. The mixtures were then molded into specimens and evaluated through visual observation as well as mechanical testing, including hardness and compressive strength tests. Visual observations indicated that specimens with a PVA/gemor wood composition of 55% exhibited the most compact and homogeneous structure. The hardness test results showed the highest value at the 55% composition, reaching 52 Shore D, while the lowest value of 25 Shore D was obtained at the 35% composition. Similarly, the compressive strength test revealed that the 55% composition achieved the highest compressive strength of 131.42 MPa, whereas the lowest value of 45.41 MPa was observed at the 35% composition. These findings indicate that increasing the wood powder filler fraction significantly improves both the visual characteristics and mechanical properties of the PVA/gemor wood biocomposites. This study is expected to contribute to the development of environmentally friendly, high-performance water-based adhesives with potential applications in the furniture, construction, and automotive industries.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biokomposit, Poly(vinyl alcohol), Serbuk kayu gemor, Biocomposite, Poly(vinyl alcohol), Wood powder
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Farqi Hatami
Date Deposited:	24 Jul 2026 03:32
Last Modified:	24 Jul 2026 08:47
URI:	http://repository.its.ac.id/id/eprint/136400

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