RENAL, RENAL (2025) RANCANG BANGUN SEDOTAN FILTRASI AIR BERBAHAN POLYLACTIC ACID MENGGUNAKAN TEKNOLOGI 3D PRINTING. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Access to clean water remains a challenge in many regions, particularly for communities in remote areas and individuals engaging in outdoor activities. This study aims to design and develop a prototype of a water filtration straw using 3D printing technology with Polylactic Acid (PLA) material, and to evaluate the mechanical strength and filtration performance of the resulting product. The design process involved the formulation of a Product Design Specification (PDS), the creation of three design concepts, and the selection of the best concept using the Pugh Matrix evaluation method and functional analysis. After selecting the optimal design, tensile testing was conducted on PLA specimens with three different infill patterns (Aligned, Grid, and Hexagonal) based on ASTM D638 Type IV standard to determine the infill pattern with the highest tensile strength. The final prototype was printed using the Hexagonal infill pattern and tested with a pressure-based water filtration device. Experimental results showed that the water pressure during filtration was approximately 0.03 MPa far below the material’s working stress limit of 17,3 MPa indicating the structural safety of the straw. The filtration test also showed an improvement in water clarity, demonstrating the effectiveness of the filtration system. This study successfully produced a portable, effective, and environmentally friendly water filtration straw, offering a practical alternative for small-scale water treatment in field conditions. Keywords: Water filtration straw, 3D printing, Polylactic Acid (PLA), infill pattern, tensile test. Akses terhadap air bersih masih menjadi tantangan di berbagai wilayah, terutama bagi masyarakat di daerah terpencil dan individu yang beraktivitas di luar ruangan. Penelitian ini bertujuan untuk merancang dan membangun purwarupa sedotan filtrasi air menggunakan teknologi 3D printing berbahan dasar Polylactic Acid (PLA), serta mengevaluasi kekuatan mekanik material dan efektivitas filtrasi air dari alat yang dihasilkan. Proses perancangan dilakukan melalui penyusunan Product Design Specifications (PDS), pembuatan tiga konsep desain, dan pemilihan desain terbaik menggunakan metode evaluasi Pugh Matrix serta analisis fungsi. Setelah desain terpilih, dilakukan uji tarik eksperimental terhadap spesimen PLA menggunakan tiga pola infill berbeda (Aligned, Grid, dan Hexagonal) berdasarkan standar ASTM D638 Type IV, untuk menentukan pola infill dengan kekuatan tarik terbaik. Desain akhir dicetak menggunakan pola Hexagonal dan diuji menggunakan alat filtrasi berbasis tekanan. Pengujian menunjukkan tekanan air saat filtrasi hanya sekitar 0,03 MPa, jauh di bawah batas tegangan kerja material sebesar 17,3 MPa, sehingga struktur sedotan dinilai aman secara mekanik. Hasil uji filtrasi juga menunjukkan peningkatan kejernihan air setelah melewati proses penyaringan, yang menandakan efektivitas sistem filtrasi. Penelitian ini menghasilkan sedotan filtrasi air yang portabel, efektif, dan ramah lingkungan, serta dapat menjadi alternatif praktis untuk kebutuhan penyaringan air skala kecil di lapangan. Kata kunci: Sedotan filtrasi air, 3D printing, Polylactic Acid (PLA), pola infill, uji tarik.
| Item Type: | Thesis (S1) |
|---|---|
| Call Number CD: | FT/MSN. 25 053 |
| NIM/NIDN Creators: | 41321010036 |
| Uncontrolled Keywords: | Sedotan filtrasi air, 3D printing, Polylactic Acid (PLA), pola infill, uji tarik. |
| Subjects: | 600 Technology/Teknologi > 600. Technology/Teknologi 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | khalimah |
| Date Deposited: | 16 Aug 2025 03:35 |
| Last Modified: | 16 Aug 2025 03:35 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/96850 |
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