ANALISIS KEKUATAN MEKANIK KOMPOSIT LIMBAH PLASTIK RECYCLE SINGLE USE DAN SERBUK KAYU
Abstrak
Pengembangan material dapat meminimalkan dampak terhadap lingkungan selama siklus hidupnya. Siklus hidup dimulai dari komposisi bahan mentah, proses produksi, penggunaan dan sistem daur ulang. Komposit disusun menggunakan material limbah sedotan plastik dan serbuk kayu menggunakan matriks resin polyester. Pembuatan spesimen komposit dengan pencetakan compressing molding menggunakan press hydraulic kapasitas 12 ton. Pembuatan spesimen dengan tiga fraksi volume berbeda. Spesimen satu (sedotan plastik 30%, serbuk kayu 70%), spesimen dus (sedotan plastik 40 %, serbuk kayu 40 % dan matriks polyester 20 %) serta spesimen tiga (matriks polyester 70 %, serbuk kayu 30%). Pengujian tarik dilakukan enam kali menggunakan standar ASTM D3039 dengan mesin Computer Servo hydraulic universal testing machine. Pengujian impact dilakukan enam kali dengan ASTM D256 menggunakan mesin charpy impact tester. Berdasarkan hasil pengujian, dapat diketahui bahwa komposisi material 40% serbuk kayu, 40% sedotan plastik, dan 20% matriks polyester memiliki kekuatan pengujian tarik dan impact optimal. Hasil pengujian tarik dan impact berturut-turut 16 N/ dan 1,27 Joule. Perpaduan ikatan antar matriks dan serat material dengan tiga variasi komposisi dapat dijadikan salah satu alternatif dalam pengembangan material maju dan ramah lingkungan.
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