Gabriela Chelvina Santiuly Girsang, - (2024) PENGEMBANGAN FILM BIOPLASTIK NANOKOMPOSIT HA/PVP/CNC UNTUK APLIKASI KEMASAN MAKANAN. S2 thesis, Universitas Pendidikan Indonesia.
![[img]](http://repository.upi.edu/style/images/fileicons/text.png) |
Text
T_KIM_2313427_Title.pdf Download (867kB) |
|
Text
T_KIM_2313427_Chapter1.pdf Download (243kB) |
|
Text
T_KIM_2313427_Chapter2.pdf Restricted to Staf Perpustakaan Download (1MB) |
|
Text
T_KIM_2313427_Chapter3.pdf Download (712kB) |
|
Text
T_KIM_2313427_Chapter4.pdf Restricted to Staf Perpustakaan Download (1MB) |
|
Text
T_KIM_2313427_Chapter5.pdf Download (225kB) |
|
Text
T_KIM_2313427_Appendix.pdf Restricted to Staf Perpustakaan Download (501kB) |
Abstract
Hyaluronic Acid (HA) mulai dikembangkan sebagai film plastik kemasan karena sifatnya yang non toksik, biokompatibel, dan biodegradable. Pencampuran HA dengan polimer polyvinylpyrrolidone (PVP) dan pengkompositan dengan selulosa nanokristal (CNC) memungkinkan penekanan biaya produksi serta pembentukan material film baru dengan sifat fisikokimia gabungan dari komponen penyusunnya. Penelitian ini bertujuan untuk menyelidiki pengaruh penambahan dan variasi komposisi PVP dan CNC terhadap struktur dan sifat fisikokimia dari film HA/PVP dan HA/PVP/CNC. CNC disintesis dari selulosa bakterial (BC) menggunakan metode hidrolisis asam sementara film HA/PVP dan HA/PVP/CNC disintesis menggunakan teknik solution casting dengan pelarut air. CNC dikarakterisasi dengan FTIR, XRD, TEM, dan PSA. Karakterisasi film meliputi morfologi (SEM), gugus fungsi (FTIR), kristalinitas (XRD), serta sifat fisikokimia seperti kekuatan mekanik, penghalang uap air, degradasi, parameter termal, dan opasitas film. PVP berinteraksi dengan HA via ikatan hidrogen serta misibel dan bercampur baik pada rasio HA/PVP7. Peningkatan kandungan PVP dalam film HA/PVP menyebabkan peningkatan keseragaman morfologi; kristalinitas (44%); sifat mekanik; nilai WVTR (69,12 g/m2.jam); stabilitas termal (260℃); dan opasitas film (0,73). Secara keseluruhan, film campuran HA/PVP memiliki sifat mekanik yang lebih rendah dibandingkan film HA murni akibat melemahnya gaya intermolekuler dan minimnya interkalasi antar rantai polimer. CNC memiliki kompatibilitas yang baik dengan matriks HA/PVP dan berinteraksi melalui ikatan hidrogen. Peningkatan kandungan CNC mengakibatkan kristalinitas (43%) serta nilai WVTR meningkat (78,34 g/m2.jam). Pada konsentrasi rendah (HA/PVP/CNC1), CNC meningkatkan elongasi film hingga 70%, sementara pada kandungan tinggi, CNC memberikan efek penguatan yang ditandai oleh kenaikan tensile strength (HA/PVP/CNC3). Penambahan CNC dalam matriks HA/PVP menyebabkan stabilitas termal dan opasitas film meningkat (1,20). Hyaluronic Acid (HA) has been developed as a packaging plastic film due to its non-toxic, biocompatible, and biodegradable properties. Mixing HA with polyvinylpyrrolidone (PVP) and incorporating cellulose nanocrystals (CNC) allows for cost reduction and the creation of new film materials with combined physicochemical properties of their components. This study aims to investigate the effects of varying PVP and CNC compositions on the structure and physicochemical properties of HA/PVP and HA/PVP/CNC films. CNC was synthesized from bacterial cellulose (BC) using an acid hydrolysis method, while HA/PVP and HA/PVP/CNC films were synthesized using a solution casting technique with water as the solvent. CNC was characterized by FTIR, XRD, TEM, and PSA. Film characterization included morphology (SEM), functional groups (FTIR), crystallinity (XRD), and physicochemical properties such as mechanical strength, water vapor transmission rate (WVTR), degradation, thermal parameters, and film opacity. PVP interacts with HA through hydrogen bonding and is miscible and well-mixed at the HA/PVP7 ratio. Increasing PVP content in the HA/PVP films increases morphology uniformity; crystallinity (44%); mechanical properties; WVTR value (69.12 g/m²·hour); thermal stability (260°C); and film opacity (0.73). Overall, the HA/PVP blend films have lower mechanical properties compared to pure HA films due to weakened intermolecular forces and minimal intercalation between polymer chains. CNC has good compatibility with the HA/PVP matrix and interacts via hydrogen bonding. Increasing CNC content results in increased crystallinity (43%) and WVTR value (78.34 g/m²·hour). At low concentrations (HA/PVP/CNC1), CNC enhances film elongation up to 70%, while at high concentrations, CNC provides reinforcement, indicated by increased tensile strength (HA/PVP/CNC3). The addition of CNC in the HA/PVP matrix results in improved thermal stability and increased film opacity (1.20).
| Item Type: | Thesis (S2) |
|---|---|
| Additional Information: | https://scholar.google.com/citations?user=g1OIcIQAAAAJ&hl=en&oi=ao ID SINTA Dosen Pembimbing: Budiman Anwar: 5978128 Fitri Khoerunnisa: 258263 |
| Uncontrolled Keywords: | Polymer blend, Nanokomposit, Film, HA, PVP, CNC. Polymer blend, Nanocomposite, Film, HA, PVP, CNC. |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Jurusan Pendidikan Kimia > Program Studi Kimia (non kependidikan) |
| Depositing User: | Gabriela Chelvina Santiuly Girsang |
| Date Deposited: | 11 Sep 2024 00:58 |
| Last Modified: | 11 Sep 2024 00:58 |
| URI: | http://repository.upi.edu/id/eprint/124011 |
Actions (login required)
 |
View Item |