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Polymer composites from natural fibers and recycled waste surgical masks during COVID‐19 pandemic
Author(s) -
Pulikkalparambil Harikrishnan,
Nandi Debabrata,
Rangappa Sanjay Mavinkere,
Prasanth Sreelakshmi,
Siengchin Suchart
Publication year - 2022
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.26668
Subject(s) - materials science , composite material , ultimate tensile strength , polypropylene , sisal , compression molding , natural rubber , fiber , reuse , molding (decorative) , mold , waste management , engineering
The crucial role of face masks is highlighted in our day‐to‐day life during the COVID‐19 pandemic. Polypropylene (PP)‐based disposable face masks are widely used to hold back viral transmission. The discarded masks can create a huge burden of contamination on the environment. The purpose of this work is to recycle and reuse discarded masks to reduce environmental pollution. A simple and innovative technique to recycle surgical masks into composites of higher mechanical strength and antimicrobial properties is explored to reuse in packaging materials and cutleries. The surgical masks composed of PP fibers are recycled to use as a matrix material to reinforce with sisal and hemp fibers. The hot compression molding technique is used to sandwich the PP masks with natural fibers. The tensile strength of the composites is remarkably increased by 197% and 305% for sisal fiber composites and hemp fiber composites, respectively. The tensile elongation also increased to 574% for sisal fiber composites. The resulting composites exhibit notable antimicrobial properties against Staphylococcus aureus , a pathogen responsible for common staphylococcal food poisoning. The composites are found to be suitable to use as food contact cutleries and packaging materials.