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All Journal Rekayasa Mesin JURNAL INTEGRASI Jurnal Teknologi dan Riset Terapan (JATRA) Marine Science and Technology Journal Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Journal of Applied Mechanical Technology (JAMET)
Stefani, Windy
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Aerospace Engineering Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Dampak Jumlah Plasticizer dalam Nilai Kekerasan Plastik PVC Manurung, Meilani Mandhalena; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Stefani, Windy; Batubara, Ninda Hardina; Purba, Adi Syahputra
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8495

Abstract

This paper provides a detailed investigation into the effects of Trioctyl Trimellitate (TOTM) plasticizer levels on the hardness of Polyvinyl Chloride (PVC) materials. The study reveals an inverse correlation between the level of TOTM plasticizer and the hardness of PVC, with an increase in TOTM levels leading to a decrease in hardness. This trend is consistent across various PVC samples, despite minor variations. The role of plasticizers in determining the physical and mechanical properties of PVC is further explored, emphasizing their function in reducing PVC's crystallinity, thereby producing a clearer and more flexible material. This research contributes to the understanding of how plasticizers can be used to tailor the properties of PVC, leading to the development of two distinct types of PVC: Flexible PVC, which contains a plasticizer, and Rigid PVC, which does not. The findings underscore the importance of plasticizers in material design and engineering, offering valuable insights for future applications.
Studi Pembuatan Procedure Qualification Record untuk Repair through Thickness pada S355 KT0 Stefani, Windy; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Nugroho, Cahyo Budi
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8530

Abstract

This research aims to develop a Procedure Qualification Record (PQR) for Repair Through Thickness on S355 KT0 material using the GTAW method for the root, SAW for filler and capping. The welds were repaired using gouging and grinding before undergoing repair welding with the SMAW method. The study employed experimental methods with Non-Destructive and Destructive tests following AWS D1.1 and Client Specification MHK-COMP-SPE standards. The test results indicate defect-free welds that meet AWS D1.1 standards in terms of mechanical properties such as tensile strength, bending, impact, and hardness. The tensile strength values reached 609 MPa (longitudinal specimen) and 539 MPa and 540 MPa for transverse specimens. The lowest impact test value was 139J in the fusion line +2 mm repair to original welds area. The peak hardness test value was 240 VHN in the HAZ (repair to original weld) region. The test results were also used to formulate a PQR that aligns with specific requirements. This research is expected to provide guidance for performing repair welding on S355 KT0 material.
Co-Authors Adhe Aryswan Agung Saputra Ari Wibowo Ariyanto, Nugroho Pratomo Batubara, Ninda Batubara, Ninda Hardina Budiman Budiman Butar, Hendra Butar Cahyagi, Danang Cahyo Budi Nugroho Dupan, Pandi Dzulfikar, Mohamad Alif Dzulfiqar, Mohamad Alif Fajrin, Aulia Firmansyah, Adi Ridho Fyona, Annisa Galih, Baginda Gemala, Mega Hermawan, Muhammad Ghandy Razzaki Juangsa Putra, Lalu Giat Khollilurrahman, Kholillurrahman Leksonowati, Nur Fitria Pujo Leo Van Gunawan Manurung, Meilani Manurung, Meilani Mandalena Manurung, Meilani Mandhalena Mufariz, Mufti Fathonah Muhammad Zaenuddin Muvariz, Mufti Fathonah Nurul Laili Arifin, Nurul Laili Pamungkas, Nurman Prasetyo, Naufal Abdurrahman Pujo Leksonowati, Nur Fitria Purba, Adi Purba, Adi Syahputra Puspita, Roza Rahman Hakim Sriyanto Sriyanto Thohari, Ahmad Hamim Ulfah, Nurul Widiastuti, Hanifah Wijayanti, Ita Wirawan, Adhitomo