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Biodegradable, Water‐Resistant, Anti‐Fizzing, Polyester Nanocellulose Composite Paper Straws

Authors :
Hojung Kwak
Hyeri Kim
Seul‐A Park
Minkyung Lee
Min Jang
Sung Bae Park
Sung Yeon Hwang
Hyo Jeong Kim
Hyeonyeol Jeon
Jun Mo Koo
Jeyoung Park
Dongyeop X. Oh
Source :
Advanced Science, Vol 10, Iss 1, Pp n/a-n/a (2023)
Publication Year :
2023
Publisher :
Wiley, 2023.

Abstract

Abstract Among plastic items, single‐use straws are particularly detrimental to marine ecosystems because such straws, including those made of poly(lactic acid) (PLA), are sharp and extremely slowly degradable in the ocean. While paper straws are promising alternatives, they exhibit hydration‐induced swelling even when coated with a non‐degradable plastic coating and promote effervescence (fizzing) in soft drinks owing to their surface heterogeneities. In this study, upgraded paper straw is coated with poly(butylene succinate) cellulose nanocrystal (PBS/CNC) composites. CNC increases adhesion to paper owing to their similar chemical structures, optimizes crystalline PBS spherulites through effective nucleation, and reinforces the matrix through its anisotropic and rigid features. The straws are not only anti‐fizzing when used with soft drinks owing to their homogeneous and seamless surface coatings, but also highly water‐resistant and tough owing to their watertight surfaces. All degradable components effectively decompose under aerobic composting and in the marine environment. This technology contributes to United Nations Sustainable Development Goal 14 (Life Below Water).

Details

Language :
English
ISSN :
21983844
Volume :
10
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Advanced Science
Publication Type :
Academic Journal
Accession number :
edsdoj.625b4f9ac7b044b8bed714adbd9d2ed2
Document Type :
article
Full Text :
https://doi.org/10.1002/advs.202205554