Analisis Biaya Proses Daur Ulang Sampah Plastik menjadi Filamen Dengan Mesin Pultrusi

Pratama, Nurrosyid Dwija (2025) Analisis Biaya Proses Daur Ulang Sampah Plastik menjadi Filamen Dengan Mesin Pultrusi. S1 thesis, Universitas Kristen Indonesia.

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Abstract

Masalah sampah plastik khususnya plastik botol Polyethylene Terephthalate (PET) semakin buruk. Sampah botol PET menyumbang 8% dari total berat dan 12% dari total volume sampah dunia. Penanganan sampah botol PET dengan metode Daur ulang menjadi solusi terbaik untuk lingkungan dan ekonomi masyarakat. Pemanfaatan botol plastik PET menjadi filamen merupakan salah satu pilihan yang tercipta karena perkembangan pesat printer 3D. Namun metode pultrusi memerlukan analisis mendalam baik dari segi ekonomi maupun kualitas cetak yang dihasilkan. Penelitian akan berfokus pada pembuatan mesin daur ulang filamen metode pultrusi, perhitungan BEP, dan perbandingan hasil cetak. Mesin dengan biaya Rp519.700 bekerja pada suhu 130 °C menghasilkan filamen berdiameter 1,7 mm, filamen diuji-cetak dengan parameter suhu 260 °C dengan kecepatan 30 mm/s dan dengan flow rate 130% menghasilkan cetakan yang masih kurang halus dan presisi dibanding dengan filamen pasaran. BEP dari pembuatan mesin dapat dicapai dengan memproduksi 2,59 kg filamen dengan asumsi harga sesuai pasaran filamen daur ulang dengan harga Rp222.000 /kg atau BEP menjadi 6,11 kg jika harga filamen ditekan ke Rp100.000 per kg. Proses daur ulang botol PET menjadi filamen dengan metode pultrusi memiliki BEP yang rendah dan mudah dicapai dengan hasil filamen yang sesuai standar. Namun hasil cetak perlu ditingkatkan dengan penelitian yang lebih mendalam. / The problem of plastic waste, especially Polyethylene Terephthalate (PET) bottles, is getting worse. PET bottles account for 8% of the total weight and 12% of the total volume of global waste. Recycling PET bottles is the best solution for the environment and the community's economy. The conversion of PET plastic bottles into plastic filament is one option that has emerged due to the rapid development of 3D printers. However, the pultrusion method requires thorough from both economic and print-quality perspectives. The research will focus on the development of a pultrusion-based filament recycling machine, break-even point calculations, and print quality comparisons. The machine, costing Rp519,700, operates at a temperature of 130 °C and produces filament with a diameter of 1,7 mm. The filament was tested for printing with parameters of 260 °C temperature, 30 mm/s speed, and 130% flow rateresulting in prints that are less smooth and precise compared to commercially available filament. The BEP for machine production can be achieved by producing 2.59 kg of filament, assuming a market price of Rp222,000/kg for recycled filament, or 6.11 kg if the filament price is reduced to Rp100,000. The recycling process of PET bottles into filament using the pultrusion method has a low BEP that is easily achievable with filament quality meeting standards. However, print quality requires further improvement through more in-depth research.

Item Type: Thesis (S1)
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorAntonius, DikkyNIDN0301218801dicky.antonius@uki.ac.id
Thesis advisorAbadi, SurjoNIDN0321126505suryo.abadi@uki.ac.id
Subjects: TECHNOLOGY
TECHNOLOGY > Mechanical engineering and machinery
Divisions: FAKULTAS TEKNIK > Teknik Mesin
Depositing User: Mr Nurrosyid Dwija Pratama
Date Deposited: 10 Dec 2025 04:51
Last Modified: 10 Dec 2025 04:51
URI: http://repository.uki.ac.id/id/eprint/20932

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