Alvianto, Zulfikry (2026) ANALISI PENGARUH WAKTU TAHAN HOT PRESS TERHADAP SIFAT FISIS DAN NILAI TARIK KOMPOSIT POLYPROPYLENE BERPENGUAT KAIN KATUN. Sarjana (S1) thesis, Universitas Islam 45 Bekasi.
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Abstract
This study aimed to determine the effect of varying hot press holding times on the mechanical and physical properties of cotton-reinforced polypropylene (PP) composites. The hot press times used were 5 minutes (KWP 1), 7 minutes (KWP 2), and 9 minutes (KWP 3), with a composition of 70% polypropylene matrix and 30% cotton fabric. The composite fabrication process was carried out using the hot press method at a temperature of 160°C and constant pressure. Mechanical properties were tested using a tensile test in accordance with the ASTM D638 standard, while physical properties, including density, water absorption, and thickness swelling, were tested according to the JIS A 5908 standard.The results showed that varying hot press times affected the mechanical and physical properties of the composites. The highest tensile strength was achieved at 7 minutes of hot pressing, at 4.18 N/mm², while the highest tensile strain and modulus of elasticity were achieved at 5 minutes of hot pressing. The best physical properties were demonstrated by the composite with a 9-minute hot press time, characterized by the highest density of 1.25 g/cm³ and the lowest water absorption and thickness swelling values. It can be concluded that a 7-minute hot press time is the optimum condition for increasing tensile strength, while a 9-minute hot press time provides the best physical property stability.
| Item Type: | Thesis (TA, Skripsi, Tesis, Disertasi) (Sarjana (S1)) | |||||||||
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| Contributors/Dosen Pembimbing,NIDN Dosen bisa diakses di LINK https://bit.ly/NIDNdosenunismabekasi: |
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| Keywords / Kata Kunci: | composite, polypropylene, cotton fabric, hot press, mechanical properties, physical properties. | |||||||||
| Subjects: | Manufaktur | |||||||||
| Faculty: | Fakultas Teknik > Teknik Mesin S1 | |||||||||
| Depositing User: | Mr Zulfikry Alvianto | |||||||||
| Date Deposited: | 03 Mar 2026 07:29 | |||||||||
| Last Modified: | 03 Mar 2026 07:29 | |||||||||
| URI: | http://repository.unismabekasi.ac.id/id/eprint/9553 |
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