SIFAT MEKANIK KOMPOSIT POLIETILENA DAUR ULANG DENGAN FIILER SERAT KELAPA

Panjaitan, Berkat (2012) SIFAT MEKANIK KOMPOSIT POLIETILENA DAUR ULANG DENGAN FIILER SERAT KELAPA. Undergraduate thesis, UNIMED.

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Abstract

Polimer plastik yang tidak mudah terurai secara alami mengakibatkan terjadinya penumpukan limbah dan menjadi penyebab pencemaran. Kondisi demikian menyebabkan bahan kemasan plastik tidak dapat dipergunakan secara meluas. Berdasarkan fakta dan kajian ilmiah yang ada dilakukan penelitian dan pengembangan teknologi bahan kemasan yang biodegradable. Cara untuk meningkatkan kualitas kemasan biodegradable dengan menambahkan serat sebagai penguat pada saat proses pembuatan bahan plastik itu sendiri yaitu serat sabut kelapa. Tujuan penelitian ini adalah untuk mengetahui sifat mekanik ( kekuatan tarik, kekuatn lentur dan kekuatan impak) komposisi HDPE daur ulang dengan serat sabut kelapa. Bahan komposit ini dibuat dengan mencampurkan serat sabut kelapa dengan HDPE daur ulang. Dicampur dalam suatu wadah dengan perbandingan fraksi massa (100:0)%, (97,5:2,5)%, (92,5:7,5)%, ( 87,5:12,5)%, (82,5:17,5)%. Papan komposit dicetak dengan ketebalan 4 mm. Papan komposit yang telah jadi dipotong sesuai dengan ukuran sampel pengujian dan kemudian sampel di uji berdasarkan pengujian sifat mekaniknya ( uji kekuatan tarik, uji kekuatan lentur, dan uji kekuatan impak). Hasil penelitian menunjukkan bahwa kekuatan tarik memiliki harga optimum untuk perbandingan massa (82,5: 17,5) yaitu Tegangan maksimum nya rata-rata (σmaks) 30,37 MPa dan regangan maksimum rata-rata (∑maks) yaitu : 9,21 % serta modulus young rata-rata (Emaks) sebesar 3,29 Mpa, kekuatan lentur dan kekuatan impak memiliki harga optimum untuk perbandingan massa (92,5:7,5) %, yaitu kekuatan lentur maksimum rata-rata ( UFS ) sebesar 99 Mpa dan kekuatan impak maksimumrata-rata ( Himaks) 3,80 j/mm2.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorHarahap, Mukti Hamjah197704252008011011
Call Number: 530.413 Pan s
Keywords: Serat;Kelapa;Maetrial;Matriks; Thermoplastik; polietilena;Mekanik;Komposit
Subjects: L Education > L Education (General)
L Education > LB Theory and practice of education
Q Science > QC Physics
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Fisika
Depositing User: Mrs Elita Sari Sitorus
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/10649

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