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All Journal Teknika: Jurnal Sains dan Teknologi JURNAL REKAYASA KIMIA & LINGKUNGAN
Achmad Syarafuddin As-syirazi
Universitas Sultan Ageng Tirtayasa
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Effect of maleic anhydride compatibilizer addition on mechanical properties of polylactic acid (PLA)/cellulose acetate (CA) composites film Abdul Kholiq; Ika Jumantika; Achmad Syarafuddin As-syirazi; Rahmayetty Rahmayetty
Jurnal Teknika Vol 18, No 2 (2022): Available Online in November 2022
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v18i2.17306

Abstract

Environmental problems caused by the use of undegradable conventional plastics are still the major issue. According to the Badan Pusat Statistik (BPS) in 2021, plastic waste in Indonesia accumulated as much as 66 million tons per year and is expected to raise gradually. PLA and CA, derived from renewable resources, are biodegradable, thermoplastic, resistant to pressure, and are often used as raw materials for the manufacture of composite plastics. PLA is hydrophobic and CA is hydrophilic, so a compatibilizer is needed as a substance that can improve the mechanical properties, compatibility, and homogeneity of the resulting composite film. This research aims to obtain the ratio of PLA/CA and the concentration of maleic anhydride (MA) compatibilizer to produce PLA/CA composites film with good mechanical strength and according to packaging material standards. The method in this research is solvent casting by synthesizing composite films through sample preparation, modification of CA with MA, grafting of PLA/CA and MA, synthesis of composite films of PLA/CA and MA, as well as several characteristic tests. The results showed that the obtained films were identified as having PLA, CA, and MA, had a relatively smooth surface and were degraded at a temperature treatment of 543oC. The best film was obtained from mass variations of PLA/CA and MA (6:4:1.5 gram) with a tensile strength of 7.38 MPa, and elongation at break reached 18.11% and met the packaging standard values by Japanese Industrial Standard (JIS).
EFFECT OF THE ADDITION OF ORANGE PEEL POWDER ON THE PHYSICAL AND MECHANICAL PROPERTIES OF POLYLACTIC ACID (PLA)/CELLULOSE ACETATE (CA) FILM COMPOSITES Achmad Syarafuddin As-syirazi; Geraldi Riantoro; Farhan Alif Syahjaya; Rahmayetty Rahmayetty; Nuryoto Nuryoto
Jurnal Rekayasa Kimia & Lingkungan Vol 18, No 2 (2023): Jurnal Rekayasa Kimia & Lingkungan (December, 2023 )
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v18i2.34178

Abstract

Conventional plastics are already a popular packaging material in society, but they have a harmful influence on the environment. As a result, there is a need for environmentally friendly polymers that are raw from nature and biodegradable alternatives to traditional plastics, one of which is raw plastic Polylactic Acid (PLA) coupled with Cellulose Acetate (CA) and Tween 80 as a compatibilizer. The goal of this research was to find the best ratio of orange skin powder to PLA/CA with the compatibilizer Tween 80 to improve the physical, mechanical, and antibacterial properties of the composite film. The method used is solvent casting with a mass ratio of PLA/CA 6: 4 with the addition of Tween 80 2%, and the addition of orange peel powder with variations of 2, 4, 6, and 10 % w/w to the weight of PLA. The tests carried out include FTIR, SEM, XRD, DSC-TGA, mechanical tests (tensile strength and elongation at break), swelling tests, and antibacterial tests. The results showed that the PLA/CA/Tween 80 film composite has a fairly smooth surface with a small cavity, capable of degrading to a temperature of 546.57C. Regarding the mechanics, the best film composites were identified at a variation of 6% with tensile strength of 4.05 MPa and elongation at break reaching 11.2% with a fairly small water absorption and this variation did not show antibacterial activity.
Co-Authors Abdul Kholiq Farhan Alif Syahjaya Geraldi Riantoro Ika Jumantika Nuryoto Rahmayetty Rahmayetty