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All Journal JURNAL KIMIA SAINS DAN APLIKASI Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring International Journal of Engineering, Science and Information Technology Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal Jurnal Malikussaleh Mengabdi
Nurlaila, Rizka
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Journal : JURNAL KIMIA SAINS DAN APLIKASI

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Effect of Polylactic Acid on Mechanical, Chemical, Thermal, Morphology, Water Absorption, and Biodegradability Characteristics of Degradable Plastic from Durian Peel Waste Retnowulan, Sri Rahayu; Dewi, Rozanna; Yosi, Andre; Ananda, Aldila; Riza, Medyan; Nurlaila, Rizka
Jurnal Kimia Sains dan Aplikasi Vol 29, No 1 (2026): Volume 29 Issue 1 Year 2026
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.29.1.46-57

Abstract

Durian peels consist of cellulose, a potential base material for producing sustainable products, particularly degradable plastics. This study examines the impact of polylactic acid (PLA) blends on the degradable plastics derived from durian peel (Durio zibethinus). The mechanical characteristics of the degradable plastics: tensile strength of 2.5671–9.3498 MPa, elongation of 31–96%, and Young’s modulus of 161.32–219.95 MPa. The analysis of the compound revealed the presence of the alcohol monomer (O-H), alkanes and aromatic rings (C-H), carbonyl (C=O), and alkenes (C-O) groups. The potential for soil microbes to decompose these groups is also a consideration, given their hydrophilic nature, which enables them to bind to water. X-ray fluorescence (XRF) analysis of the degradable plastic sample revealed the presence of 13 elements: Mg, Ca, Al, P, Fe, Cl, K, Sr, Zn, Sc, Rh, S, and Si. In this study, no harmful metal contaminants (Pb, Hg, or Cd) were identified. Thermal analysis, encompassing a temperature range from 357.67°C to 443.67°C, has been instrumental in identifying the phase transition that marks the onset of extreme weight loss during crystallization. Morphological analysis revealed incomplete dissolution, leading to a nonuniform shape. Solubility is directly proportional to the duration of the stirring process. The degradable plastic with the least swelling is composed of 3.5 g of cellulose and 3 g of PLA, exhibiting a degree of swelling of 4.89%. The degradable plastic is predicted to decompose most rapidly after 56 days with a PLA content of 3 g. This experimental result aligns with the provisions outlined in ASTM D2096, a standard that establishes a maximum time limit of 180 days for the degradation of plastics.
Co-Authors Adli, Muhammad Fathur Agam Muarif Ahmad Fikri Allawiyah, Annisa Zaen Almahibi, Saif Amalia, Nabila Ananda, Aldila Arinanda Ashari, Muhammad Rayhan Auliani, Auliani Desriani, Chintiara Faisal Faisal Faisal Faisal Faisal fatimah Fatimah Ferri Safriwardy Fibarzi, Wiza Ulfa Fitri, Safira Fitriani Fitriani Fuadi Ibrahim, Ishak Imelda, Yesi Ishak Ishak Ishak Ishak Ismi, Aulia Jalaluddin Jalaluddin Julinawati, Julinawati Kamar, Iqbal Leni Maulinda, Leni Lestari, Juli Lirinzha, Rizkha Lukman Hakim Lukman Hakim Masrullita, Masrullita Medyan Riza Mei Yuni, Rafika Meliyani Harahap, Nazwa Meriatna Meriatna Muhammad Habibi Muhammad Muhammad Muhammad Muhammad Muhammad Nuzan Rizki Mulyawan, Rizka Nasrul ZA Nasrul ZA, Nasrul Novi Sylvia Nurfikasari, Dara Nurmazaya, Vini Pane, Nurul Anisa Pasaribu, Josua Purna Irawan, Faisal Dwi Putri, Emilya Nirwana Ramadhana, Maqfirah Razi, Ar Retnowulan, Sri Rahayu Rini Julistia Ritonga, Renanda Pradila Rizky, Audry Azilla Rozanna Dewi SARAGIH, SINTA DEWI Sari, Utya Siri, Danu Sitorus, Ika Pratiwi Berliana Sofiyani, Nurwardina Sulhatun Sulhatun Suryati Suryati Syamsiar, Syamsiar Syamsul Bahri Sylvia, Novy Teuku Alfiady Teuku Mudi Hafli Ulfa, Raudhatul Ulfa, Tasya Veithzal Rivai Zainal Wiza Ulfa Fibarzi Wusnah Wusnah, Wusnah Yosi, Andre Yulisda, Desvina Yusri, Wilda Azizah Zainuddin Ginting Zulmiardi, Zulmiardi Zulnazri, Z