Analisis Sifat Fisik Daur Ulang Limbah Plastik Jenis High Density Polyethylene
DOI:
https://doi.org/10.36499/jim.v17i2.5517Keywords:
Daur ulang, limbah, HDPE, plastikAbstract
Plastik sangat lazim digunakan untuk keperluan rumah tangga. Sebagai contoh pembungkus makanan, botol air mineral, kabel, pipa, mainan anak dan sebagainya. Kegunaan plastik setiap harinya limbah plastik yang paling banyak adalah high density polyethylene (HDPE). Tujuan penelitian ini adalah untuk mengetahui pengaruh temperatur kerja mesin injection molding terhadap densitas, kekuatan tarik dan bentuk makro patahan pada limbah plastik HDPE. Limbah plastik dicacah dan dimasukkan ke dalam hopper mesin injection molding dengan temperatur 150°C, 175°C, 200°C, 250°C dan 275°C kemudian diinjeksikan ke dalam cetakan standar ASTM D638. Adapun hasil yang diperoleh adalah semakin tinggi temperatur injection molding maka semakin rendah densitasnya, tetapi pada pengujian tarik semakin tinggi temperatur maka semakin tinggi kekuatan tariknya. Pada pengujian foto makro diperoleh hasil semakin tinggi temperatur injection molding maka semakin tinggi tingkat kematangannya dan semakin ulet.
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