Effect of citric acid on physical and mechanical properties of Starch/PLA/PVA bioplastic films

Siti Mamluatus Sa'Adah, Endang Saepudin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The bioplastics synthesized from starch which is low physical and mechanical properties. Blending polymer (PLA Grafting and PVA Addition) and chemical modification by crosslinking have been investigated as strategies to improve the physical and mechanical properties of bioplastic films. A series of Starch/PLA/PVA films with varying concentration (0-25%, w/w) of citric acid was synthesized by casting method. The improvement in physical and mechanical properties consists of swelling and solubility, biodegradability, tensile strength and elongation percentage of blend films was evaluated as compared to bioplastic without crosslinker. 5% citric acid showed the most optimum concentration to improve the physical and mechanical properties of bioplatics. The blend bioplastics were characterized using Fourier transform infrared spectrophotometry (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA/DTA) and X-Ray diffraction (XRD). The result showed that addition of 5% citric acid also increased crystallinity and temperature glass (Tg), and reduced brittleness the surface morphology of bioplastic films.

Original languageEnglish
Title of host publication3rd International Conference on Chemistry, Chemical Process and Engineering, IC3PE 2020
EditorsIs Fatimah, Won-Chun Oh, Imam Sahroni
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441262
DOIs
Publication statusPublished - 1 Sep 2021
Event3rd International Conference on Chemistry, Chemical Process and Engineering, IC3PE 2020 - Yogyakarta, Indonesia
Duration: 30 Sep 2020 → …

Publication series

NameAIP Conference Proceedings
Volume2370
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Conference on Chemistry, Chemical Process and Engineering, IC3PE 2020
Country/TerritoryIndonesia
CityYogyakarta
Period30/09/20 → …

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