ANALISI PENGARUH WAKTU TAHAN HOT PRESS TERHADAP SIFAT FISIS DAN NILAI TARIK KOMPOSIT POLYPROPYLENE BERPENGUAT KAIN KATUN

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))
Contributors/Dosen Pembimbing,NIDN Dosen bisa diakses di LINK https://bit.ly/NIDNdosenunismabekasi:	Contribution Contributors / Dosen Pembimbing NIDN UNSPECIFIED Indrayani, Novi Laura 45104052015010 UNSPECIFIED Ahsan, Ahsan 45502012018051
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.umindonesia.ac.id/id/eprint/9553

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