JUMANTIKA, IKA and KHOLIQ, ABDUL (2023) PENGARUH PENAMBAHAN SELULOSA ASETAT (CA) DAN COMPATIBILIZER MALEAT ANHIDRIDA (MA) TERHADAP SIFAT MEKANIS KOMPOSIT FILM BERBASIS POLYLACTIC ACID (PLA). S1 thesis, Universitas sultan ageng tirtayasa.
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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 including mechanical test (tensile strength and elongation at break), FTIR, SEM, and DSC-TGA. 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 composites 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).
| Item Type: | Thesis (S1) | ||||||
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| Additional Information: | Permasalahan lingkungan yang disebabkan oleh penggunaan plastik konvensional yang sukar terdegradasi masih terus berlanjut. Menurut Badan Pusat Statistik (BPS) pada tahun 2021, limbah plastik di Indonesia mencapai 66 juta ton per tahun dan diperkirakan akan terus meningkat. PLA dan CA berasal dari sumber daya terbarukan, bersifat biodegradable, termoplastik, serta tahan terhadap tekanan, kerap kali dijadikan sebagai bahan baku pembuatan plastik komposit. PLA bersifat hidrofobik dan CA bersifat hidrofilik, sehingga diperlukan compatibilizer sebagai zat yang dapat meningkatkan sifat mekanis, kompatibilitas, dan homogenitas komposit film yang dihasilkan. Penelitian ini bertujuan untuk mendapatkan rasio PLA/CA dan konsentrasi compatibilizer maleat anhidrida (MA) untuk menghasilkan komposit film PLA/CA dengan kekuatan mekanis yang baik dan sesuai dengan standar bahan pengemas. Metode pada penelitian ini adalah solvent casting dengan dengan tahapan modifikasi CA dengan MA, grafting PLA, CA, dan MA, sintesis komposit film PLA/CA dan MA, serta beberapa pengujian dan analisis berupa uji mekanis (tensile strength dan elongation at break), FTIR, SEM, dan DSC-TGA. Hasil penelitian menunjukkan bahwa film yang diperoleh teridentifikasi terdapat PLA, CA, dan MA, memiliki permukaan yang relatif halus serta terdegradasi pada perlakuan temperatur 543oC. Komposit film terbaik diperoleh untuk variasi PLA/CA dan MA sebesar (6:4:1,5) gram dengan tensile strength sebesar 7,38 MPa, serta elongation at break mencapai 18,11% dan telah memenuhi standar pengemas. | ||||||
| Uncontrolled Keywords: | compatibilizer, composite film, PLA, cellulose acetate, solvent casting compatibilizer, komposit film, PLA, selulosa asetat, solvent casting | ||||||
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry T Technology > TP Chemical technology |
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| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 24201-Jurusan Teknik Kimia |
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| Depositing User: | Mr Abdul Kholiq | ||||||
| Date Deposited: | 17 Jul 2023 09:49 | ||||||
| Last Modified: | 03 Aug 2023 09:40 | ||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/26491 |
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