POS7-0486
Enhanced Gas Barrier Performance of Polypropylene Composites through Low-Loading Boron Nitride Nanosheets
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Hyung-Ho Choi (Department of Applied Organic Materials Engineering, Chungnam National University)
Co-Author(s)
Abstract
Polypropylene (PP) is widely used as a sustainable packaging material because of its low cost, excellent processability, and recyclability. However, its relatively poor gas barrier performance limits its application in advanced packaging systems requiring effective protection against gas permeation. In this study, boron nitride nanosheets (BNNSs) were incorporated into a PP matrix as high-aspect-ratio nanofillers to improve gas barrier properties. The two-dimensional morphology of BNNSs is expected to increase the tortuosity of gas diffusion pathways, thereby reducing gas transport through the composite. To maximize the barrier effect at low filler loadings, strategies for improving BNNS dispersion and reducing interfacial defects were investigated. The relationships among filler dispersion, composite morphology, and gas barrier performance were systematically examined. Uniform dispersion of BNNSs and minimized interfacial voids are expected to promote the formation of an efficient barrier network within the PP matrix. This study demonstrates the potential of low-loading BNNS incorporation as an effective approach for developing recyclable PP-based packaging materials with enhanced gas barrier properties.
Keywords: Polypropylene, Boron nitride nanosheets, Gas barrier properties, Interfacial adhesion, Packaging materials
Keywords: Polypropylene, Boron nitride nanosheets, Gas barrier properties, Interfacial adhesion, Packaging materials
