Production of filament from high density polyethylene (hdpe) waste using custom made mini extrusion machine
This project aimed to produce a filament from high density polyethylene (HDPE) waste using a tabletop extrusion machine that priorly custom-made in the Mechanical Engineering Lab. The project was carried out in three stages which were modification stages, filament extrusion stages and testing filame...
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| Main Author: | |
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| Format: | Academic Exercise |
| Language: | English English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/34426/1/24pages.pdf https://eprints.ums.edu.my/id/eprint/34426/2/FULLTEXT.pdf https://eprints.ums.edu.my/id/eprint/34426/ |
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| Summary: | This project aimed to produce a filament from high density polyethylene (HDPE) waste using a tabletop extrusion machine that priorly custom-made in the Mechanical Engineering Lab. The project was carried out in three stages which were modification stages, filament extrusion stages and testing filament stage. Based on the modification, motor with a higher torque is the best motor for extrusion machine. For the filament extrusion, the suitable temperature and speed for the extrusion machine to produce a HDPE filament is 225°C and 35rpm. 777cm of HDPE filament was produced using 50g of HDPE flakes. For the filament testing, the roundness of the HDPE filament has a significant defect in the beginning of the filament however it gets lesser throughout the end of the filament. Diameter of the HDPE filament produced is in between the range of 1.6mm to 3.7mm, it means that the diameter of the filament is not consistent enough. The HDPE filament produced do not have any porosity in the cross section and surface of the filament. The hardness of the HDPE filament produced is in between the range of 39HD to 53HD, and the hardness is decreasing compared to the hardness of HDPE flakes. Surface roughness testing found that the surface of HDPE filament is not smooth enough in the beginning of the filament, but it gets smoother throughout the end of the filament. Based on the results, it shows that the objectives of the study are achieved as well as all the questions of the study are answered throughout this project. However, there are still room for improvement in order to produce a good quality of filament. |
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