Effect of silver zeolite on mechanical properties and water absorption of poly(Lactic acid)/poly(butylene adipate-co-terephthalate) films for shelf life extension of fruits

Name: Chonlada Jaiaue

Organization : Chulalongkorn University. Faculty of Science

Name: Duangdao Aht-Ong

Organization : Chulalongkorn University. Faculty of Science

Email : duangdao.a@chula.ac.th

LCSH: Polylactic acid

LCSH: Polybutenes

LCSH: Zeolites

LCSH: Polyester films -- Mechanical properties

LCSH: Polyester films -- Adsorption

Abstract: Thailand export trend of fruits is increasing over the years. Unfortunately, some fruits have been damaged during transportation due to the presence of moisture. The moisture generated in fruit packages can cause the microbial spoilage in products. Therefore, the packaging films have been developed to extend shelf-life of fruits. In this research, fruit packaging films from PLA/PBAT blend incorporated with silver-containing zeolite 5A using (3-aminopropyl) triethoxysilane (APTS) as modifying agent were fabricated by cast film extrusion process. Effects of zeolite loadings (1, 3, 5wt%) and cation exchanged zeolite with silver ion (Ag+) on morphological and mechanical properties including water absorption of PLA/PBAT composite films were investigated. It was found that the compatibility between PLA/PBAT matrix and zeolite was enhanced by silver ion incorporation. Tensile strength and Young’s modulus of the composite films increased with increasing zeolite loading. In addition, adding silver ions contents improved tensile strength and Young’s modulus of the composite films when compared with the ones without silver ions. The water absorption of PLA/PBAT films increased by adding zeolite contents. Furthermore, films incorporated with Ag-zeolite at 3wt% had the highest water absorption, hence it should be suitable for absorbing moisture within the fruit packages occurring during transportation and preservation

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-11-25

Issued: 2022-11-25

บทความ/Article

application/pdf

BibliograpyCitation : In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.955-960). Bangkok : King Mongkut's Institute of Technology Ladkrabang

eng

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