Wanatra, Ronny Wahyu Studi Kekuatan Komposit dengan Penguat Serat Kelapa dan Kertas Bekas sebagai Pengembangan Material Baru Pengganti Kayu. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Indonesia kaya akan Sumber Daya Alam (SDA) dengan keanekaragaman hutan, tambang, minyak, dan batu bara yang tersebar di berbagai pulau. Namun, eksploitasi SDA secara masif menyebabkan kerusakan lingkungan, seperti penebangan hutan ilegal untuk memenuhi kebutuhan industri kayu. Peningkatan produksi kayu bulat Indonesia dari 57,93 juta m3 pada 2019 menjadi 68,22 juta m3 pada 2023 menunjukkan tren pertumbuhan yang pesat, sementara pasokan kayu ilegal diperkirakan mencapai 50%-70%. Berbagai penelitian telah menunjukkan potensi penggunaan limbah kertas, serat sabut kelapa, dan bahan alam lainnya sebagai alternatif pengganti kayu. Bahan-bahan ini tidak hanya ramah lingkungan, tetapi juga dapat meningkatkan sifat mekanik komposit, seperti kekuatan tarik dan lentur. Untuk mengatasi ketergantungan pada kayu, Maka dari itu penelitian ini menganalisa nilai hasil pengujian kekuatan tarik, bending, dan SEM pada pengembangan material komposit pengganti kayu berbahan dasar serat kelapa dan Kertas bekas sebagai penguat serta lem kayu putih sebagai matriks. Variasi fraksi berat serat kelapa 1%, 1,5%, 2%, 2,5%, 3% dan Variasi fraksi berat kertas bekas 39%, 38,5%, 38%, 37,5%, 37% terhadap berat total penguat sejumlah 40%. Penelitian ini juga memiliki variasi ukuran serat kelapa : 3, 8, 13, 18 cm. Diharapkan penelitian ini dapat menggantikan kayu dalam berbagai aplikasi industri, mengurangi deforestasi, dan memberikan manfaat ekonomi melalui pemanfaatan limbah. Dari penelitian yang dilakukan dapat diketahui bahwa tegangan maksimal tertinggi pengujian tarik menunjukkan pada variasi panjang serat 8 cm dengan fraksi berat serat 3% didapatkan nilai tegangan 14,66 Mpa, sedangkan tegangan maksimal terendah pada pengujian tarik menunjukkan pada variasi panjang serat 13cm dengan fraksi berat serat 1,5% didapatkan nilai tegangan 8,77 Mpa. Lalu tegangan tertinggi untuk pengujian bending menunjukkan pada variasi panjang serat 3 cm dengan fraksi berat serat 1% didapatkan nilai tegangan 38,85 Mpa, sedangkan tegangan terendah pada pengujian bending menunjukkan pada variasi panjang serat 13 cm dengan fraksi berat serat 3 % dengan nilai tegangan 19,22 Mpa.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Material komposit, Serat kelapa, Kertas Bekas, Lem kayu putih, Kekuatan tarik, kekuatan bending, SEM |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin |
| Depositing User: | 1422100126 RONNY WAHYU WANATRA |
| Date Deposited: | 22 Dec 2001 15:50 |
| Last Modified: | 22 Dec 2001 15:50 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/40288 |
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